hedgewars/uGearsHandlersRope.pas
author nemo
Wed, 29 Aug 2012 10:56:32 -0400
changeset 7624 03d662ff9c41
parent 7612 047c6692a2e7
child 7647 e496587db93e
permissions -rw-r--r--
A few more operators. Committing in case unc0rr wants to fiddle.
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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{$INCLUDE "options.inc"}
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unit uGearsHandlersRope;
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interface
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uses uTypes;
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procedure doStepRope(Gear: PGear);
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implementation
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uses uConsts, uFloat, uCollisions, uVariables, uGearsList, uSound, uGearsUtils,
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    uAmmos, uDebug, uUtils, uGearsHedgehog, uGearsRender;
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procedure doStepRopeAfterAttack(Gear: PGear);
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var 
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    HHGear: PGear;
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begin
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    HHGear := Gear^.Hedgehog^.Gear;
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    if ((HHGear^.State and gstHHDriven) = 0)
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    or (CheckGearDrowning(HHGear))
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    or (TestCollisionYwithGear(HHGear, 1) <> 0) then
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        begin
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        DeleteGear(Gear);
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        isCursorVisible := false;
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        ApplyAmmoChanges(HHGear^.Hedgehog^);
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        exit
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        end;
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    HedgehogChAngle(HHGear);
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    if TestCollisionXwithGear(HHGear, hwSign(HHGear^.dX)) then
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        SetLittle(HHGear^.dX);
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    if HHGear^.dY.isNegative and (TestCollisionYwithGear(HHGear, -1) <> 0) then
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        HHGear^.dY := _0;
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    HHGear^.X := HHGear^.X + HHGear^.dX;
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    HHGear^.Y := HHGear^.Y + HHGear^.dY;
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    HHGear^.dY := HHGear^.dY + cGravity;
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    if (GameFlags and gfMoreWind) <> 0 then
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        HHGear^.dX := HHGear^.dX + cWindSpeed / HHGear^.Density;
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    if (Gear^.Message and gmAttack) <> 0 then
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        begin
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        Gear^.X := HHGear^.X;
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        Gear^.Y := HHGear^.Y;
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        ApplyAngleBounds(Gear^.Hedgehog^, amRope);
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        Gear^.dX := SignAs(AngleSin(HHGear^.Angle), HHGear^.dX);
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        Gear^.dY := -AngleCos(HHGear^.Angle);
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        Gear^.Friction := _4_5 * cRopePercent;
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        Gear^.Elasticity := _0;
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        Gear^.State := Gear^.State and (not gsttmpflag);
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        Gear^.doStep := @doStepRope;
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        end
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end;
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procedure unstickHog(Gear, HHGear: PGear);
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var i: LongInt;
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    stuck: Boolean;
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begin
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    if (TestCollisionYwithGear(HHGear, 1) <> 0) and (TestCollisionYwithGear(HHGear, -1) = 0) then
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        begin
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        i:= 1;
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        repeat
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            begin
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            inc(i);
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            stuck:= TestCollisionYwithGear(HHGear, 1) <> 0;
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            if stuck then HHGear^.Y:= HHGear^.Y-_1
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            end
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        until (i = 8) or (not stuck);
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        HHGear^.Y:= HHGear^.Y+_1;
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        // experiment in simulating something the shoppa players apparently expect
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        if Gear^.Message and gmDown <> 0 then
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            begin
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            //HHGear^.dY:= HHGear^.dY / 16;
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            //HHGear^.dY.QWordValue:= 0;
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            HHGear^.dY:= -_0_1;
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            HHGear^.dX:= HHGear^.dX * _1_5;
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            end;
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        if Gear^.Message and gmRight <> 0 then
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            HHGear^.dX.isNegative:= false
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        else if Gear^.Message and gmLeft <> 0 then
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            HHGear^.dX.isNegative:= true
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        end
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    else if (TestCollisionYwithGear(HHGear, -1) <> 0) and (TestCollisionYwithGear(HHGear, 1) = 0) then
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        begin
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        i:= 1;
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        repeat
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            begin
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            inc(i);
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            stuck:= TestCollisionYwithGear(HHGear, -1) <> 0;
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            if stuck then HHGear^.Y:= HHGear^.Y+_1
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            end
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        until (i = 8) or (not stuck);
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        HHGear^.Y:= HHGear^.Y-_1;
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        if Gear^.Message and gmDown <> 0 then
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            begin
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            //HHGear^.dY:= HHGear^.dY / 16;
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            //HHGear^.dY.QWordValue:= 0;
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            HHGear^.dY:= _0_1;
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            HHGear^.dX:= HHGear^.dX * _1_5;
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            end;
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        if Gear^.Message and gmRight <> 0 then
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            HHGear^.dX.isNegative:= true
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        else if Gear^.Message and gmLeft <> 0 then
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            HHGear^.dX.isNegative:= false
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        end;
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    if TestCollisionXwithGear(HHGear, 1) and (not TestCollisionXwithGear(HHGear, -1)) then
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        begin
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        i:= 1;
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        repeat
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            begin
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            inc(i);
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            stuck:= TestCollisionXwithGear(HHGear, 1);
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            if stuck then HHGear^.X:= HHGear^.X-_1
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            end
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        until (i = 8) or (not stuck);
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        HHGear^.X:= HHGear^.X+_1;
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        if Gear^.Message and gmDown <> 0 then
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            begin
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            //HHGear^.dX:= HHGear^.dX / 16;
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            //HHGear^.dX.QWordValue:= 0;
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            HHGear^.dX:= -_0_1;
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            HHGear^.dY:= HHGear^.dY * _1_5;
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            end;
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        if Gear^.Message and gmRight <> 0 then
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            HHGear^.dY.isNegative:= true
7609
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   147
        else if Gear^.Message and gmLeft <> 0 then
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682e21112867 so unc0rr might replace this all. but anyway. fix copypasta.
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   148
            HHGear^.dY.isNegative:= false
7605
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   149
        end
7612
047c6692a2e7 shutting the windows/pas2c build bot up: pas2c seems to fail parsing 'not' after a logical 'and' or 'or' (if no parenthesis)
sheepluva
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   150
    else if TestCollisionXwithGear(HHGear, -1) and (not TestCollisionXwithGear(HHGear, 1)) then
7605
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        begin
7609
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   152
        i:= 1;
7605
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   153
        repeat
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   154
            begin
7609
7663a5c614cb shoppa hack, take... 4?
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   155
            inc(i);
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   156
            stuck:= TestCollisionXwithGear(HHGear, -1);
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   157
            if stuck then HHGear^.X:= HHGear^.X+_1
7605
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nemo
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   158
            end
7612
047c6692a2e7 shutting the windows/pas2c build bot up: pas2c seems to fail parsing 'not' after a logical 'and' or 'or' (if no parenthesis)
sheepluva
parents: 7611
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   159
        until (i = 8) or (not stuck);
7611
5013e11e13e5 Nerf X component a bit, allow knocks of nearby targets and upward kicks of overlapping
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   160
        HHGear^.X:= HHGear^.X-_1;
7605
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   161
        if Gear^.Message and gmDown <> 0 then
7609
7663a5c614cb shoppa hack, take... 4?
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   162
            begin
7663a5c614cb shoppa hack, take... 4?
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   163
            //HHGear^.dX:= HHGear^.dX / 16;
7611
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   164
            //HHGear^.dX.QWordValue:= 0;
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   165
            HHGear^.dX:= _0_1;
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   166
            HHGear^.dY:= HHGear^.dY * _1_5;
7609
7663a5c614cb shoppa hack, take... 4?
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diff changeset
   167
            end;
7663a5c614cb shoppa hack, take... 4?
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   168
        if Gear^.Message and gmRight <> 0 then
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682e21112867 so unc0rr might replace this all. but anyway. fix copypasta.
nemo
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   169
            HHGear^.dY.isNegative:= false
7609
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   170
        else if Gear^.Message and gmLeft <> 0 then
7610
682e21112867 so unc0rr might replace this all. but anyway. fix copypasta.
nemo
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   171
            HHGear^.dY.isNegative:= true
7605
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   172
        end
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   173
end;
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diff changeset
   174
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   175
procedure RopeDeleteMe(Gear, HHGear: PGear);
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   176
begin
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   177
    PlaySound(sndRopeRelease);
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a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
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   178
    HHGear^.dX.QWordValue:= HHGear^.dX.QWordValue div Gear^.stepFreq;
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
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   179
    HHGear^.dY.QWordValue:= HHGear^.dY.QWordValue div Gear^.stepFreq;
7594
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   180
    with HHGear^ do
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   181
        begin
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   182
        Message := Message and (not gmAttack);
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   183
        State := (State or gstMoving) and (not gstWinner);
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   184
        end;
7605
10e88fbb5fdb hack for shoppa players, take 2. take into account sides, and a guess that a "slide" involves no upward movement
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   185
    unstickHog(Gear, HHGear);
7594
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   186
    DeleteGear(Gear)
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   187
end;
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diff changeset
   188
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   189
procedure RopeWaitCollision(Gear, HHGear: PGear);
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   190
begin
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   191
    PlaySound(sndRopeRelease);
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   192
    with HHGear^ do
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   193
        begin
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   194
        Message := Message and (not gmAttack);
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   195
        State := State or gstMoving;
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   196
        end;
7605
10e88fbb5fdb hack for shoppa players, take 2. take into account sides, and a guess that a "slide" involves no upward movement
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diff changeset
   197
    unstickHog(Gear, HHGear);
7594
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   198
    RopePoints.Count := 0;
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   199
    Gear^.Elasticity := _0;
7602
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
parents: 7601
diff changeset
   200
    Gear^.doStep := @doStepRopeAfterAttack;
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
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diff changeset
   201
    HHGear^.dX.QWordValue:= HHGear^.dX.QWordValue div Gear^.stepFreq;
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
parents: 7601
diff changeset
   202
    HHGear^.dY.QWordValue:= HHGear^.dY.QWordValue div Gear^.stepFreq;
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
parents: 7601
diff changeset
   203
    Gear^.stepFreq := 1
7594
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   204
end;
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diff changeset
   205
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   206
procedure doStepRopeWork(Gear: PGear);
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   207
var 
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   208
    HHGear: PGear;
7595
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
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   209
    len, tx, ty, nx, ny, ropeDx, ropeDy, mdX, mdY, t: hwFloat;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
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   210
    lx, ly, cd, i: LongInt;
7594
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   211
    haveCollision,
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   212
    haveDivided: boolean;
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diff changeset
   213
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   214
begin
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   215
    if GameTicks mod 8 <> 0 then exit;
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diff changeset
   216
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   217
    HHGear := Gear^.Hedgehog^.Gear;
7595
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
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diff changeset
   218
    haveCollision:= false;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
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   219
    if (Gear^.Message and gmLeft  <> 0) and (not TestCollisionXwithGear(HHGear, -1)) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
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   220
        HHGear^.dX := HHGear^.dX - _0_0128
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   221
    else haveCollision:= true;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   222
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   223
    if (Gear^.Message and gmRight <> 0) and (not TestCollisionXwithGear(HHGear,  1)) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   224
        HHGear^.dX := HHGear^.dX + _0_0128
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
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diff changeset
   225
    else haveCollision:= true;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   226
7594
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diff changeset
   227
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   228
    if ((HHGear^.State and gstHHDriven) = 0)
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diff changeset
   229
       or (CheckGearDrowning(HHGear)) or (Gear^.PortalCounter <> 0) then
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   230
        begin
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   231
        RopeDeleteMe(Gear, HHGear);
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   232
        exit
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   233
        end;
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diff changeset
   234
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   235
    // vector between hedgehog and rope attaching point
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   236
    ropeDx := HHGear^.X - Gear^.X;
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   237
    ropeDy := HHGear^.Y - Gear^.Y;
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diff changeset
   238
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   239
    if TestCollisionYwithGear(HHGear, 1) = 0 then
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   240
        begin
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diff changeset
   241
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   242
        // depending on the rope vector we know which X-side to check for collision
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   243
        // in order to find out if the hog can still be moved by gravity
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diff changeset
   244
        if ropeDx.isNegative = RopeDy.IsNegative then
5f03595335e6 fromdos + fix end of turn velocity
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diff changeset
   245
            cd:= -1
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diff changeset
   246
        else
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diff changeset
   247
            cd:= 1;
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diff changeset
   248
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   249
        // apply gravity if there is no obstacle
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diff changeset
   250
        if not TestCollisionXwithGear(HHGear, cd) then
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diff changeset
   251
            HHGear^.dY := HHGear^.dY + cGravity * 64;
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diff changeset
   252
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diff changeset
   253
        if (GameFlags and gfMoreWind) <> 0 then
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diff changeset
   254
            // apply wind if there's no obstacle
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diff changeset
   255
            if not TestCollisionXwithGear(HHGear, hwSign(cWindSpeed)) then
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diff changeset
   256
                HHGear^.dX := HHGear^.dX + cWindSpeed * 64 / HHGear^.Density;
7595
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   257
        end
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   258
    else haveCollision:= true;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   259
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   260
    if ((Gear^.Message and gmDown) <> 0) and (Gear^.Elasticity < Gear^.Friction) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   261
        if not (TestCollisionXwithGear(HHGear, hwSign(ropeDx))
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   262
        or (TestCollisionYwithGear(HHGear, hwSign(ropeDy)) <> 0)) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   263
            Gear^.Elasticity := Gear^.Elasticity + _2_4
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   264
    else haveCollision:= true;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   265
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   266
    if ((Gear^.Message and gmUp) <> 0) and (Gear^.Elasticity > _30) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   267
        if not (TestCollisionXwithGear(HHGear, -hwSign(ropeDx))
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   268
        or (TestCollisionYwithGear(HHGear, -hwSign(ropeDy)) <> 0)) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   269
            Gear^.Elasticity := Gear^.Elasticity - _2_4
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   270
    else haveCollision:= true;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   271
7604
c143c942b5fe Hack to try and appease the shoppa players
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diff changeset
   272
(*
c143c942b5fe Hack to try and appease the shoppa players
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parents: 7602
diff changeset
   273
I am not so sure this is useful. Disabling
7595
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   274
    if haveCollision then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   275
        begin
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   276
        if TestCollisionXwithGear(HHGear, hwSign(HHGear^.dX)) and not TestCollisionXwithGear(HHGear, hwSign(HHGear^.dX)) then
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   277
            HHGear^.dX.isNegative:= not HHGear^.dX.isNegative;
bbac3c0f0c68 Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?
nemo
parents: 7594
diff changeset
   278
        if (TestCollisionYwithGear(HHGear, hwSign(HHGear^.dY)) <> 0) and (TestCollisionYwithGear(HHGear, -hwSign(HHGear^.dY)) = 0) then
7596
nemo
parents: 7595
diff changeset
   279
            HHGear^.dY.isNegative:= not HHGear^.dY.isNegative;
7594
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   280
        end;
7604
c143c942b5fe Hack to try and appease the shoppa players
nemo
parents: 7602
diff changeset
   281
*)
7594
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   282
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   283
    mdX := ropeDx + HHGear^.dX;
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nemo
parents: 7593
diff changeset
   284
    mdY := ropeDy + HHGear^.dY;
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nemo
parents: 7593
diff changeset
   285
    len := _1 / Distance(mdX, mdY);
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nemo
parents: 7593
diff changeset
   286
    // rope vector plus hedgehog direction vector normalized
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nemo
parents: 7593
diff changeset
   287
    mdX := mdX * len;
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nemo
parents: 7593
diff changeset
   288
    mdY := mdY * len;
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nemo
parents: 7593
diff changeset
   289
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   290
    // for visual purposes only
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nemo
parents: 7593
diff changeset
   291
    Gear^.dX := mdX;
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nemo
parents: 7593
diff changeset
   292
    Gear^.dY := mdY;
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nemo
parents: 7593
diff changeset
   293
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   294
    /////
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nemo
parents: 7593
diff changeset
   295
    tx := HHGear^.X;
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nemo
parents: 7593
diff changeset
   296
    ty := HHGear^.Y;
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nemo
parents: 7593
diff changeset
   297
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   298
    HHGear^.X := Gear^.X + mdX * Gear^.Elasticity;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   299
    HHGear^.Y := Gear^.Y + mdY * Gear^.Elasticity;
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nemo
parents: 7593
diff changeset
   300
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   301
    HHGear^.dX := HHGear^.X - tx;
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nemo
parents: 7593
diff changeset
   302
    HHGear^.dY := HHGear^.Y - ty;
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nemo
parents: 7593
diff changeset
   303
    ////
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nemo
parents: 7593
diff changeset
   304
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   305
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   306
    haveDivided := false;
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nemo
parents: 7593
diff changeset
   307
    // check whether rope needs dividing
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nemo
parents: 7593
diff changeset
   308
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   309
    len := Gear^.Elasticity - _5;
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nemo
parents: 7593
diff changeset
   310
    nx := Gear^.X + mdX * len;
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nemo
parents: 7593
diff changeset
   311
    ny := Gear^.Y + mdY * len;
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nemo
parents: 7593
diff changeset
   312
    tx := mdX * _2_4; // should be the same as increase step
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nemo
parents: 7593
diff changeset
   313
    ty := mdY * _2_4;
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nemo
parents: 7593
diff changeset
   314
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   315
    while len > _3 do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   316
        begin
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nemo
parents: 7593
diff changeset
   317
        lx := hwRound(nx);
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nemo
parents: 7593
diff changeset
   318
        ly := hwRound(ny);
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nemo
parents: 7593
diff changeset
   319
        if ((ly and LAND_HEIGHT_MASK) = 0) and ((lx and LAND_WIDTH_MASK) = 0) and ((Land[ly, lx] and $FF00) <> 0) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   320
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   321
            ny := _1 / Distance(ropeDx, ropeDy);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   322
            // old rope pos
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nemo
parents: 7593
diff changeset
   323
            nx := ropeDx * ny;
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nemo
parents: 7593
diff changeset
   324
            ny := ropeDy * ny;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   325
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   326
            with RopePoints.ar[RopePoints.Count] do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   327
                begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   328
                X := Gear^.X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   329
                Y := Gear^.Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   330
                if RopePoints.Count = 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   331
                    RopePoints.HookAngle := DxDy2Angle(Gear^.dY, Gear^.dX);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   332
                b := (nx * HHGear^.dY) > (ny * HHGear^.dX);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   333
                dLen := len
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nemo
parents: 7593
diff changeset
   334
                end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   335
                
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   336
            with RopePoints.rounded[RopePoints.Count] do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   337
                begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   338
                X := hwRound(Gear^.X);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   339
                Y := hwRound(Gear^.Y);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   340
                end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   341
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   342
            Gear^.X := Gear^.X + nx * len;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   343
            Gear^.Y := Gear^.Y + ny * len;
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nemo
parents: 7593
diff changeset
   344
            inc(RopePoints.Count);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   345
            TryDo(RopePoints.Count <= MAXROPEPOINTS, 'Rope points overflow', true);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   346
            Gear^.Elasticity := Gear^.Elasticity - len;
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nemo
parents: 7593
diff changeset
   347
            Gear^.Friction := Gear^.Friction - len;
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nemo
parents: 7593
diff changeset
   348
            haveDivided := true;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   349
            break
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   350
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   351
        nx := nx - tx;
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nemo
parents: 7593
diff changeset
   352
        ny := ny - ty;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   353
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   354
        // len := len - _2_4 // should be the same as increase step
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nemo
parents: 7593
diff changeset
   355
        len.QWordValue := len.QWordValue - _2_4.QWordValue;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   356
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   357
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   358
    if not haveDivided then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   359
        if RopePoints.Count > 0 then // check whether the last dividing point could be removed
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   360
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   361
            tx := RopePoints.ar[Pred(RopePoints.Count)].X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   362
            ty := RopePoints.ar[Pred(RopePoints.Count)].Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   363
            mdX := tx - Gear^.X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   364
            mdY := ty - Gear^.Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   365
            if RopePoints.ar[Pred(RopePoints.Count)].b xor (mdX * (ty - HHGear^.Y) > (tx - HHGear^.X) * mdY) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   366
                begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   367
                dec(RopePoints.Count);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   368
                Gear^.X := RopePoints.ar[RopePoints.Count].X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   369
                Gear^.Y := RopePoints.ar[RopePoints.Count].Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   370
                Gear^.Elasticity := Gear^.Elasticity + RopePoints.ar[RopePoints.Count].dLen;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   371
                Gear^.Friction := Gear^.Friction + RopePoints.ar[RopePoints.Count].dLen;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   372
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   373
                // restore hog position
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nemo
parents: 7593
diff changeset
   374
                len := _1 / Distance(mdX, mdY);
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nemo
parents: 7593
diff changeset
   375
                mdX := mdX * len;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   376
                mdY := mdY * len;
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nemo
parents: 7593
diff changeset
   377
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   378
                HHGear^.X := Gear^.X - mdX * Gear^.Elasticity;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   379
                HHGear^.Y := Gear^.Y - mdY * Gear^.Elasticity;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   380
                end
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   381
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   382
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   383
    haveCollision := false;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   384
    if TestCollisionXwithGear(HHGear, hwSign(HHGear^.dX)) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   385
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   386
        HHGear^.dX := -_0_6 * HHGear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   387
        haveCollision := true
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   388
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   389
    if TestCollisionYwithGear(HHGear, hwSign(HHGear^.dY)) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   390
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   391
        HHGear^.dY := -_0_6 * HHGear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   392
        haveCollision := true
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   393
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   394
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   395
    if haveCollision and (Gear^.Message and (gmLeft or gmRight) <> 0) and (Gear^.Message and (gmUp or gmDown) <> 0) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   396
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   397
        HHGear^.dX := SignAs(hwAbs(HHGear^.dX) + _1_6, HHGear^.dX);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   398
        HHGear^.dY := SignAs(hwAbs(HHGear^.dY) + _1_6, HHGear^.dY)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   399
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   400
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   401
    len := hwSqr(HHGear^.dX) + hwSqr(HHGear^.dY);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   402
    if len > _49 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   403
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   404
        len := _7 / hwSqrt(len);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   405
        HHGear^.dX := HHGear^.dX * len;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   406
        HHGear^.dY := HHGear^.dY * len;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   407
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   408
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   409
    haveCollision:= ((hwRound(Gear^.Y) and LAND_HEIGHT_MASK) = 0) and ((hwRound(Gear^.X) and LAND_WIDTH_MASK) = 0) and ((Land[hwRound(Gear^.Y), hwRound(Gear^.X)]) <> 0);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   410
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   411
    if not haveCollision then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   412
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   413
        // backup gear location
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   414
        tx:= Gear^.X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   415
        ty:= Gear^.Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   416
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   417
        if RopePoints.Count > 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   418
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   419
            // set gear location to the remote end of the rope, the attachment point
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   420
            Gear^.X:= RopePoints.ar[0].X;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   421
            Gear^.Y:= RopePoints.ar[0].Y;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   422
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   423
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   424
        CheckCollision(Gear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   425
        // if we haven't found any collision yet then check the other side too
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   426
        if (Gear^.State and gstCollision) = 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   427
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   428
            Gear^.dX.isNegative:= not Gear^.dX.isNegative;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   429
            Gear^.dY.isNegative:= not Gear^.dY.isNegative;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   430
            CheckCollision(Gear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   431
            Gear^.dX.isNegative:= not Gear^.dX.isNegative;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   432
            Gear^.dY.isNegative:= not Gear^.dY.isNegative;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   433
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   434
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   435
        haveCollision:= (Gear^.State and gstCollision) <> 0;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   436
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   437
        // restore gear location
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   438
        Gear^.X:= tx;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   439
        Gear^.Y:= ty;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   440
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   441
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   442
    // if the attack key is pressed, lose rope contact as well
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   443
    if (Gear^.Message and gmAttack) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   444
        haveCollision:= false;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   445
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   446
    if not haveCollision then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   447
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   448
        if (Gear^.State and gsttmpFlag) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   449
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   450
            if Gear^.Hedgehog^.CurAmmoType <> amParachute then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   451
                RopeWaitCollision(Gear, HHGear)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   452
            else
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   453
                RopeDeleteMe(Gear, HHGear)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   454
            end
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   455
        end
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   456
    else
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   457
        if (Gear^.State and gsttmpFlag) = 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   458
            Gear^.State := Gear^.State or gsttmpFlag;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   459
end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   460
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   461
procedure RopeRemoveFromAmmo(Gear, HHGear: PGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   462
begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   463
    if (Gear^.State and gstAttacked) = 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   464
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   465
        OnUsedAmmo(HHGear^.Hedgehog^);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   466
        Gear^.State := Gear^.State or gstAttacked
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   467
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   468
    ApplyAmmoChanges(HHGear^.Hedgehog^)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   469
end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   470
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   471
procedure doStepRopeAttach(Gear: PGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   472
var 
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   473
    HHGear: PGear;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   474
    tx, ty, tt: hwFloat;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   475
begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   476
    Gear^.X := Gear^.X - Gear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   477
    Gear^.Y := Gear^.Y - Gear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   478
    Gear^.Elasticity := Gear^.Elasticity + _1;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   479
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   480
    HHGear := Gear^.Hedgehog^.Gear;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   481
    DeleteCI(HHGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   482
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   483
    if (HHGear^.State and gstMoving) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   484
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   485
        if TestCollisionXwithGear(HHGear, hwSign(HHGear^.dX)) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   486
            SetLittle(HHGear^.dX);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   487
        if HHGear^.dY.isNegative and (TestCollisionYwithGear(HHGear, -1) <> 0) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   488
            HHGear^.dY := _0;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   489
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   490
        HHGear^.X := HHGear^.X + HHGear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   491
        Gear^.X := Gear^.X + HHGear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   492
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   493
        if TestCollisionYwithGear(HHGear, 1) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   494
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   495
            CheckHHDamage(HHGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   496
            HHGear^.dY := _0
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   497
            //HHGear^.State:= HHGear^.State and (not (gstHHJumping or gstHHHJump));
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   498
            end
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   499
        else
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   500
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   501
            HHGear^.Y := HHGear^.Y + HHGear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   502
            Gear^.Y := Gear^.Y + HHGear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   503
            HHGear^.dY := HHGear^.dY + cGravity;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   504
            if (GameFlags and gfMoreWind) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   505
                HHGear^.dX := HHGear^.dX + cWindSpeed / HHGear^.Density
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   506
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   507
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   508
        tt := Gear^.Elasticity;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   509
        tx := _0;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   510
        ty := _0;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   511
        while tt > _20 do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   512
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   513
            if ((hwRound(Gear^.Y+ty) and LAND_HEIGHT_MASK) = 0) and ((hwRound(Gear^.X+tx) and LAND_WIDTH_MASK) = 0) and ((Land[hwRound(Gear^.Y+ty), hwRound(Gear^.X+tx)] and $FF00) <> 0) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   514
                begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   515
                Gear^.X := Gear^.X + tx;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   516
                Gear^.Y := Gear^.Y + ty;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   517
                Gear^.Elasticity := tt;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   518
                Gear^.doStep := @doStepRopeWork;
7602
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
parents: 7601
diff changeset
   519
                Gear^.stepFreq:= 8;
7594
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   520
                PlaySound(sndRopeAttach);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   521
                with HHGear^ do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   522
                    begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   523
                    dX.QWordValue:= dX.QWordValue shl 3;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   524
                    dY.QWordValue:= dY.QWordValue shl 3;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   525
                    State := State and (not (gstAttacking or gstHHJumping or gstHHHJump));
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   526
                    Message := Message and (not gmAttack)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   527
                    end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   528
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   529
                RopeRemoveFromAmmo(Gear, HHGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   530
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   531
                tt := _0;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   532
                exit
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   533
                end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   534
            tx := tx + Gear^.dX + Gear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   535
            ty := ty + Gear^.dY + Gear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   536
            tt := tt - _2;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   537
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   538
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   539
7601
c96ff1a053d0 Allow escaping from tight spots
nemo
parents: 7596
diff changeset
   540
    if Gear^.Elasticity < _20 then Gear^.CollisionMask:= $FF00
c96ff1a053d0 Allow escaping from tight spots
nemo
parents: 7596
diff changeset
   541
    else Gear^.CollisionMask:= $FF7F;
7594
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   542
    CheckCollision(Gear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   543
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   544
    if (Gear^.State and gstCollision) <> 0 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   545
        if Gear^.Elasticity < _10 then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   546
            Gear^.Elasticity := _10000
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   547
    else
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   548
        begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   549
        Gear^.doStep := @doStepRopeWork;
7602
a620319d377e Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).
nemo
parents: 7601
diff changeset
   550
        Gear^.stepFreq:= 8;
7594
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   551
        PlaySound(sndRopeAttach);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   552
        with HHGear^ do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   553
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   554
            dX.QWordValue:= dX.QWordValue shl 3;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   555
            dY.QWordValue:= dY.QWordValue shl 3;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   556
            State := State and (not (gstAttacking or gstHHJumping or gstHHHJump));
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   557
            Message := Message and (not gmAttack)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   558
            end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   559
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   560
        RopeRemoveFromAmmo(Gear, HHGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   561
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   562
        exit
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   563
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   564
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   565
    if (Gear^.Elasticity > Gear^.Friction)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   566
        or ((Gear^.Message and gmAttack) = 0)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   567
        or ((HHGear^.State and gstHHDriven) = 0)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   568
        or (HHGear^.Damage > 0) then
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   569
            begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   570
            with Gear^.Hedgehog^.Gear^ do
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   571
                begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   572
                State := State and (not gstAttacking);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   573
                Message := Message and (not gmAttack)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   574
                end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   575
        DeleteGear(Gear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   576
        exit;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   577
        end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   578
    if CheckGearDrowning(HHGear) then DeleteGear(Gear)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   579
end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   580
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   581
procedure doStepRope(Gear: PGear);
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   582
begin
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   583
    Gear^.dX := - Gear^.dX;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   584
    Gear^.dY := - Gear^.dY;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   585
    Gear^.doStep := @doStepRopeAttach;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   586
    PlaySound(sndRopeShot)
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   587
end;
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   588
5f03595335e6 fromdos + fix end of turn velocity
nemo
parents: 7593
diff changeset
   589
end.