(*
* Hedgewars, a worms-like game
* Copyright (c) 2004, 2005 Andrey Korotaev <unC0Rr@gmail.com>
*
* Distributed under the terms of the BSD-modified licence:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* with the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*)
unit uGears;
interface
uses SDLh, uConsts;
{$INCLUDE options.inc}
const AllInactive: boolean = false;
type PGear = ^TGear;
TGearStepProcedure = procedure (Gear: PGear);
TGear = record
NextGear, PrevGear: PGear;
Active: Boolean;
State : Cardinal;
X : Real;
Y : Real;
dX: Real;
dY: Real;
Kind : TGearType;
doStep: TGearStepProcedure;
HalfWidth, HalfHeight: integer;
Angle, Power : Cardinal;
DirAngle: real;
Timer : LongWord;
Elasticity: Real;
Friction : Real;
Message : Longword;
Hedgehog: pointer;
Health, Damage: LongWord;
CollIndex: Longword;
Tag: integer;
end;
function AddGear(X, Y: integer; Kind: TGearType; State: Cardinal; const dX: real=0.0; dY: real=0.0; Timer: LongWord=0): PGear;
procedure ProcessGears;
procedure SetAllToActive;
procedure SetAllHHToActive;
procedure DrawGears(Surface: PSDL_Surface);
procedure FreeGearsList;
procedure AddMiscGears;
procedure AssignHHCoords;
var CurAmmoGear: PGear = nil;
implementation
uses uWorld, uMisc, uStore, uConsole, uSound, uTeams, uRandom, uCollisions, uLand;
var GearsList: PGear = nil;
RopePoints: record
Count: Longword;
HookAngle: integer;
ar: array[0..300] of record
X, Y: real;
dLen: real;
b: boolean;
end;
end;
procedure DeleteGear(Gear: PGear); forward;
procedure doMakeExplosion(X, Y, Radius: integer; Mask: LongWord); forward;
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: integer): PGear; forward;
procedure SpawnBoxOfSmth; forward;
{$INCLUDE GSHandlers.inc}
{$INCLUDE HHHandlers.inc}
const doStepHandlers: array[TGearType] of TGearStepProcedure = (
doStepCloud,
doStepBomb,
doStepHedgehog,
doStepGrenade,
doStepHealthTag,
doStepGrave,
doStepUFO,
doStepShotgunShot,
doStepActionTimer,
doStepPickHammer,
doStepRope,
doStepSmokeTrace,
doStepExplosion,
doStepMine,
doStepCase
);
function AddGear(X, Y: integer; Kind: TGearType; State: Cardinal; const dX: real=0.0; dY: real=0.0; Timer: LongWord=0): PGear;
begin
{$IFDEF DEBUGFILE}AddFileLog('AddGear: ('+inttostr(x)+','+inttostr(y)+')');{$ENDIF}
New(Result);
{$IFDEF DEBUGFILE}AddFileLog('AddGear: handle = '+inttostr(integer(Result)));{$ENDIF}
FillChar(Result^, sizeof(TGear), 0);
Result.X:= X;
Result.Y:= Y;
Result.Kind := Kind;
Result.State:= State;
Result.Active:= true;
Result.dX:= dX;
Result.dY:= dY;
Result.doStep:= doStepHandlers[Kind];
Result.CollIndex:= High(Longword);
if CurrentTeam <> nil then
Result.Hedgehog:= @CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog];
case Kind of
gtAmmo_Bomb: begin
Result.HalfWidth:= 4;
Result.HalfHeight:= 4;
Result.Elasticity:= 0.6;
Result.Friction:= 0.995;
Result.Timer:= Timer
end;
gtHedgehog: begin
Result.HalfWidth:= 6;
Result.HalfHeight:= cHHHalfHeight;
Result.Elasticity:= 0.002;
Result.Friction:= 0.999;
end;
gtAmmo_Grenade: begin
Result.HalfWidth:= 4;
Result.HalfHeight:= 4;
end;
gtHealthTag: begin
Result.Timer:= 1500;
end;
gtGrave: begin
Result.HalfWidth:= 10;
Result.HalfHeight:= 10;
Result.Elasticity:= 0.6;
end;
gtUFO: begin
Result.HalfWidth:= 5;
Result.HalfHeight:= 2;
Result.Timer:= 500;
Result.Elasticity:= 0.9
end;
gtShotgunShot: begin
Result.Timer:= 900;
Result.HalfWidth:= 2;
Result.HalfHeight:= 2
end;
gtActionTimer: begin
Result.Timer:= Timer
end;
gtPickHammer: begin
Result.HalfWidth:= 10;
Result.HalfHeight:= 2;
Result.Timer:= 4000
end;
gtSmokeTrace: begin
Result.X:= Result.X - 16;
Result.Y:= Result.Y - 16;
Result.State:= 8
end;
gtRope: begin
Result.HalfWidth:= 3;
Result.HalfHeight:= 3;
Result.Friction:= 500;
RopePoints.Count:= 0;
end;
gtExplosion: begin
Result.X:= Result.X - 25;
Result.Y:= Result.Y - 25;
end;
gtMine: begin
Result.HalfWidth:= 3;
Result.HalfHeight:= 3;
Result.Elasticity:= 0.55;
Result.Friction:= 0.995;
Result.Timer:= 3000;
end;
gtCase: begin
Result.HalfWidth:= 14;
Result.HalfHeight:= 14;
Result.Elasticity:= 0.6
end;
end;
if GearsList = nil then GearsList:= Result
else begin
GearsList.PrevGear:= Result;
Result.NextGear:= GearsList;
GearsList:= Result
end
end;
procedure DeleteGear(Gear: PGear);
begin
if Gear.CollIndex < High(Longword) then DeleteCR(Gear);
if Gear.Kind = gtHedgehog then
if CurAmmoGear <> nil then
begin
{$IFDEF DEBUGFILE}AddFileLog('DeleteGear: Sending gm_Destroy, hh handle = '+inttostr(integer(Gear)));{$ENDIF}
Gear.Message:= gm_Destroy;
CurAmmoGear.Message:= gm_Destroy;
exit
end else PHedgehog(Gear.Hedgehog).Gear:= nil;
if CurAmmoGear = Gear then
CurAmmoGear:= nil;
if FollowGear = Gear then FollowGear:= nil;
{$IFDEF DEBUGFILE}AddFileLog('DeleteGear: handle = '+inttostr(integer(Gear)));{$ENDIF}
if Gear.NextGear <> nil then Gear.NextGear.PrevGear:= Gear.PrevGear;
if Gear.PrevGear <> nil then Gear.PrevGear.NextGear:= Gear.NextGear
else begin
GearsList:= Gear^.NextGear;
if GearsList <> nil then GearsList.PrevGear:= nil
end;
Dispose(Gear)
end;
function CheckNoDamage: boolean; // returns TRUE in case of no damaged hhs
var Gear: PGear;
begin
Result:= true;
Gear:= GearsList;
while Gear <> nil do
begin
if Gear.Kind = gtHedgehog then
if Gear.Damage <> 0 then
begin
Result:= false;
if Gear.Health < Gear.Damage then Gear.Health:= 0
else dec(Gear.Health, Gear.Damage);
AddGear(Round(Gear.X), Round(Gear.Y) - 32, gtHealthTag, Gear.Damage).Hedgehog:= Gear.Hedgehog;
RenderHealth(PHedgehog(Gear.Hedgehog)^);
Gear.Damage:= 0
end;
Gear:= Gear.NextGear
end;
end;
procedure ProcessGears;
const delay: integer = cInactDelay;
step: (stDelay, stChDmg, stSpawn, stNTurn) = stDelay;
var Gear, t: PGear;
{$IFDEF COUNTTICKS}
tickcntA, tickcntB: LongWord;
const cntSecTicks: LongWord = 0;
{$ENDIF}
begin
{$IFDEF COUNTTICKS}
asm
push eax
push edx
rdtsc
mov tickcntA, eax
mov tickcntB, edx
pop edx
pop eax
end;
{$ENDIF}
AllInactive:= true;
t:= GearsList;
while t<>nil do
begin
Gear:= t;
t:= Gear.NextGear;
if Gear.Active then Gear.doStep(Gear);
end;
if AllInactive then
case step of
stDelay: begin
dec(delay);
if delay = 0 then
begin
inc(step);
delay:= cInactDelay
end
end;
stChDmg: if CheckNoDamage then inc(step) else step:= stDelay;
stSpawn: begin
if not isInMultiShoot then SpawnBoxOfSmth;
inc(step)
end;
stNTurn: begin
if isInMultiShoot then isInMultiShoot:= false
else ParseCommand('/nextturn');
step:= Low(step)
end;
end;
if TurnTimeLeft > 0 then
if CurrentTeam <> nil then
if CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear <> nil then
if ((CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear.State and gstAttacking) = 0)
and not isInMultiShoot then dec(TurnTimeLeft);
inc(GameTicks);
{$IFDEF COUNTTICKS}
asm
push eax
push edx
rdtsc
sub eax, [tickcntA]
sbb edx, [tickcntB]
add [cntSecTicks], eax
pop edx
pop eax
end;
if (GameTicks and 1023) = 0 then
begin
cntTicks:= cntSecTicks shr 10;
{$IFDEF DEBUGFILE}
AddFileLog('<' + inttostr(cntTicks) + '>x1024 ticks');
{$ENDIF}
cntSecTicks:= 0
end;
{$ENDIF}
end;
procedure SetAllToActive;
var t: PGear;
begin
AllInactive:= false;
t:= GearsList;
while t<>nil do
begin
t.Active:= true;
t:= t.NextGear
end
end;
procedure SetAllHHToActive;
var t: PGear;
begin
AllInactive:= false;
t:= GearsList;
while t<>nil do
begin
if t.Kind = gtHedgehog then t.Active:= true;
t:= t.NextGear
end
end;
procedure DrawGears(Surface: PSDL_Surface);
var Gear: PGear;
i: Longword;
procedure DrawRopeLine(X1, Y1, X2, Y2: integer);
var i: integer;
t, k: real;
r: TSDL_Rect;
begin
if abs(X1 - X2) > abs(Y1 - Y2) then
begin
if X1 > X2 then
begin
i:= X1;
X1:= X2;
X2:= i;
i:= Y1;
Y1:= Y2;
Y2:= i
end;
k:= (Y2 - Y1) / (X2 - X1);
if X1 < 0 then
begin
t:= Y1 - 2 - k * X1;
X1:= 0
end else t:= Y1 - 2;
if X2 > cScreenWidth then X2:= cScreenWidth;
r.x:= X1;
while r.x <= X2 do
begin
r.y:= round(t);
r.w:= 4;
r.h:= 4;
SDL_FillRect(Surface, @r, cWhiteColor);
t:= t + k*3;
inc(r.x, 3)
end;
end else
begin
if Y1 > Y2 then
begin
i:= X1;
X1:= X2;
X2:= i;
i:= Y1;
Y1:= Y2;
Y2:= i
end;
k:= (X2 - X1) / (Y2 - Y1);
if Y1 < 0 then
begin
t:= X1 - 2 - k * Y1;
Y1:= 0
end else t:= X1 - 2;
if Y2 > cScreenHeight then Y2:= cScreenHeight;
r.y:= Y1;
while r.y <= Y2 do
begin
r.x:= round(t);
r.w:= 4;
r.h:= 4;
SDL_FillRect(Surface, @r, cWhiteColor);
t:= t + k*3;
inc(r.y, 3)
end;
end
end;
begin
Gear:= GearsList;
while Gear<>nil do
begin
case Gear.Kind of
gtCloud: DrawSprite(sprCloud , Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, Gear.State, Surface);
gtAmmo_Bomb: DrawSprite(sprBomb , Round(Gear.X) - 8 + WorldDx, Round(Gear.Y) - 8 + WorldDy, trunc(Gear.DirAngle), Surface);
gtHedgehog: DrawHedgehog(Round(Gear.X) - 14 + WorldDx, Round(Gear.Y) - 18 + WorldDy, Sign(Gear.dX),
0, PHedgehog(Gear.Hedgehog).visStepPos div 2,
Surface);
gtAmmo_Grenade: DrawSprite(sprGrenade , Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, DxDy2Angle32(Gear.dY, Gear.dX), Surface);
gtHealthTag: DrawCaption(Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, PHedgehog(Gear.Hedgehog).HealthTagRect, Surface, true);
gtGrave: DrawSpriteFromRect(PHedgehog(Gear.Hedgehog).Team.GraveRect, Round(Gear.X) + WorldDx - 16, Round(Gear.Y) + WorldDy - 16, 32, (GameTicks shr 7) and 7, Surface);
gtUFO: DrawSprite(sprUFO, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, (GameTicks shr 7) mod 4, Surface);
gtSmokeTrace: if Gear.State < 8 then DrawSprite(sprSmokeTrace, Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, Gear.State, Surface);
gtRope: begin
DrawRopeLine(Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy,
Round(PHedgehog(Gear.Hedgehog).Gear.X) + WorldDx, Round(PHedgehog(Gear.Hedgehog).Gear.Y) + WorldDy);
if RopePoints.Count > 0 then
begin
i:= 0;
while i < Pred(RopePoints.Count) do
begin
DrawRopeLine(Round(RopePoints.ar[i].X) + WorldDx, Round(RopePoints.ar[i].Y) + WorldDy,
Round(RopePoints.ar[Succ(i)].X) + WorldDx, Round(RopePoints.ar[Succ(i)].Y) + WorldDy);
inc(i)
end;
DrawRopeLine(Round(RopePoints.ar[i].X) + WorldDx, Round(RopePoints.ar[i].Y) + WorldDy,
Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy);
DrawSprite(sprRopeHook, Round(RopePoints.ar[0].X) + WorldDx - 16, Round(RopePoints.ar[0].Y) + WorldDy - 16, RopePoints.HookAngle, Surface);
end else
DrawSprite(sprRopeHook, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, DxDy2Angle32(Gear.dY, Gear.dX), Surface);
end;
gtExplosion: DrawSprite(sprExplosion50, Round(Gear.X) + WorldDx, Round(Gear.Y) + WorldDy, Gear.State, Surface);
gtMine: if ((Gear.State and gstAttacking) = 0)or((Gear.Timer and $3FF) < 420)
then DrawSprite(sprMineOff , Round(Gear.X) - 8 + WorldDx, Round(Gear.Y) - 8 + WorldDy, trunc(Gear.DirAngle), Surface)
else DrawSprite(sprMineOn , Round(Gear.X) - 8 + WorldDx, Round(Gear.Y) - 8 + WorldDy, trunc(Gear.DirAngle), Surface);
gtCase: DrawSprite(sprCase, Round(Gear.X) - 16 + WorldDx, Round(Gear.Y) - 16 + WorldDy, 0, Surface);
end;
Gear:= Gear.NextGear
end;
end;
procedure FreeGearsList;
var t, tt: PGear;
begin
tt:= GearsList;
GearsList:= nil;
while tt<>nil do
begin
t:= tt;
tt:= tt.NextGear;
Dispose(t)
end;
end;
procedure AddMiscGears;
var i, x, y: integer;
begin
for i:= 0 to cCloudsNumber do AddGear( - cScreenWidth + i * ((cScreenWidth * 2 + 2304) div cCloudsNumber), -128, gtCloud, random(4), (0.5-random)*0.01);
AddGear(0, 0, gtActionTimer, gtsStartGame, 0, 0, 2000).Health:= 3;
for i:= 0 to 3 do
begin
GetHHPoint(x, y);
AddGear(X, Y + 9, gtMine, 0);
end;
end;
procedure doMakeExplosion(X, Y, Radius: integer; Mask: LongWord);
var Gear: PGear;
dmg: integer;
begin
TargetPoint.X:= NoPointX;
{$IFDEF DEBUGFILE}if Radius > 3 then AddFileLog('Explosion: at (' + inttostr(x) + ',' + inttostr(y) + ')');{$ENDIF}
DrawExplosion(X, Y, Radius);
if Radius = 50 then AddGear(X, Y, gtExplosion, 0);
if (Mask and EXPLAutoSound)<>0 then PlaySound(sndExplosion);
if (Mask and EXPLNoDamage)<>0 then exit;
if (Mask and EXPLAllDamageInRadius)=0 then Radius:= Radius shl 1;
Gear:= GearsList;
while Gear <> nil do
begin
dmg:= Radius - Round(sqrt(sqr(Gear.X - X) + sqr(Gear.Y - Y)));
if dmg > 0 then
begin
dmg:= dmg shr 1;
case Gear.Kind of
gtHedgehog,
gtMine,
gtCase: begin
inc(Gear.Damage, dmg);
Gear.dX:= Gear.dX + dmg / 200 * sign(Gear.X - X);
Gear.dY:= Gear.dY + dmg / 200 * sign(Gear.Y - Y);
FollowGear:= Gear
end;
gtGrave: Gear.dY:= - dmg / 250;
end;
end;
Gear:= Gear.NextGear
end
end;
procedure AssignHHCoords;
var Gear: PGear;
pX, pY: integer;
begin
Gear:= GearsList;
while Gear <> nil do
begin
if Gear.Kind = gtHedgehog then
begin
GetHHPoint(pX, pY);
Gear.X:= pX;
Gear.Y:= pY
end;
Gear:= Gear.NextGear
end
end;
function CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: integer): PGear;
var t: PGear;
begin
t:= GearsList;
rX:= sqr(rX);
rY:= sqr(rY);
while t <> nil do
begin
if (t <> Gear) and (t.Kind = Kind) then
if sqr(Gear.X - t.X) / rX + sqr(Gear.Y - t.Y) / rY <= 1 then
begin
Result:= t;
exit
end;
t:= t.NextGear
end;
Result:= nil
end;
function CheckGearsNear(mX, mY: integer; Kind: TGearsType; rX, rY: integer): PGear;
var t: PGear;
begin
t:= GearsList;
rX:= sqr(rX);
rY:= sqr(rY);
while t <> nil do
begin
if t.Kind in Kind then
if sqr(mX - t.X) / rX + sqr(mY - t.Y) / rY <= 1 then
begin
Result:= t;
exit
end;
t:= t.NextGear
end;
Result:= nil
end;
function CountGears(Kind: TGearType): Longword;
var t: PGear;
begin
Result:= 0;
t:= GearsList;
while t <> nil do
begin
if t.Kind = Kind then inc(Result);
t:= t.NextGear
end;
end;
procedure SpawnBoxOfSmth;
var i, x, y, k: integer;
b: boolean;
begin
if CountGears(gtCase) > 4 then exit;
k:= 7;
repeat
x:= getrandom(2000) + 24;
b:= false;
y:= -1;
while (y < 1024) and not b do
begin
inc(y);
i:= x - 14;
while (i <= x + 14) and not b do // 14 is gtCase HalfWidth
begin
if Land[y, i] <> 0 then b:= true;
inc(i)
end;
end;
if b then
b:= CheckGearsNear(x, y, [gtMine, gtHedgehog, gtCase], 70, 70) = nil;
dec(k)
until (k = 0) or b;
if b then FollowGear:= AddGear(x, -30, gtCase, 0)
end;
initialization
finalization
FreeGearsList
end.