author | nemo |
Fri, 30 Mar 2018 11:56:16 -0400 | |
changeset 13304 | 5ac2bdefa173 |
parent 11046 | 47a8c19ecb60 |
child 13607 | 212036414957 |
permissions | -rw-r--r-- |
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(* |
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* Hedgewars, a free turn based strategy game |
11046 | 3 |
* Copyright (c) 2004-2015 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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update FSF address. note: two sdl include files (by Sam Lantinga) still have the old FSF address in their copyright - but I ain't gonna touch their copyright headers
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*) |
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|
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{$INCLUDE "options.inc"} |
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|
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unit uGearsHandlers; |
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interface |
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|
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uses uTypes; |
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|
9969 | 26 |
function cakeStep(Gear: PGear): boolean; |
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|
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implementation |
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|
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uses SDLh, uFloat, uCollisions; |
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|
7398 | 32 |
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||
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const dirs: array[0..3] of TPoint = ((x: 0; y: -1), |
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(x: 1; y: 0), |
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(x: 0; y: 1), |
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(x: -1; y: 0)); |
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|
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procedure PrevAngle(Gear: PGear; dA: LongInt); inline; |
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begin |
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inc(Gear^.WDTimer); |
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Gear^.Angle := (LongInt(Gear^.Angle) - dA) and 3 |
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end; |
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|
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procedure NextAngle(Gear: PGear; dA: LongInt); inline; |
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begin |
9969 | 47 |
inc(Gear^.WDTimer); |
7721 | 48 |
Gear^.Angle := (LongInt(Gear^.Angle) + dA) and 3 |
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end; |
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|
9969 | 51 |
function cakeStep(Gear: PGear): boolean; |
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var |
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xx, yy, xxn, yyn: LongInt; |
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dA: LongInt; |
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begin |
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dA := hwSign(Gear^.dX); |
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xx := dirs[Gear^.Angle].x; |
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yy := dirs[Gear^.Angle].y; |
7721 | 59 |
xxn := dirs[(LongInt(Gear^.Angle) + dA) and 3].x; |
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yyn := dirs[(LongInt(Gear^.Angle) + dA) and 3].y; |
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|
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if (xx = 0) then |
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if TestCollisionYwithGear(Gear, yy) <> 0 then |
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PrevAngle(Gear, dA) |
9969 | 65 |
else |
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begin |
9969 | 67 |
Gear^.Tag := 0; |
68 |
||
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if TestCollisionXwithGear(Gear, xxn) <> 0 then |
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Gear^.WDTimer:= 0; |
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||
72 |
Gear^.Y := Gear^.Y + int2hwFloat(yy); |
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if TestCollisionXwithGear(Gear, xxn) = 0 then |
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begin |
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Gear^.X := Gear^.X + int2hwFloat(xxn); |
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NextAngle(Gear, dA) |
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77 |
end |
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end; |
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|
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if (yy = 0) then |
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return land word from uCollisions to make decisions based on it. Should be handy for trampoline.
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if TestCollisionXwithGear(Gear, xx) <> 0 then |
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PrevAngle(Gear, dA) |
9969 | 83 |
else |
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84 |
begin |
9969 | 85 |
Gear^.Tag := 0; |
86 |
||
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if TestCollisionYwithGear(Gear, yyn) <> 0 then |
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Gear^.WDTimer:= 0; |
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Gear^.X := Gear^.X + int2hwFloat(xx); |
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if TestCollisionYwithGear(Gear, yyn) = 0 then |
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begin |
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Gear^.Y := Gear^.Y + int2hwFloat(yyn); |
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NextAngle(Gear, dA) |
|
95 |
end |
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end; |
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|
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cakeStep:= Gear^.WDTimer < 4 |
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end; |
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100 |
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101 |
end. |