--- a/hedgewars/uCollisions.pas Mon Aug 22 21:38:06 2005 +0000
+++ b/hedgewars/uCollisions.pas Tue Aug 23 16:17:53 2005 +0000
@@ -1,252 +1,252 @@
-(*
- * Hedgewars, a worms-like game
- * Copyright (c) 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 uCollisions;
-interface
-uses uGears;
-{$INCLUDE options.inc}
-
-type TCollisionEntry = record
- X, Y, HWidth, HHeight: integer;
- cGear: PGear;
- end;
-
-procedure AddGearCR(Gear: PGear);
-procedure UpdateCR(NewX, NewY: integer; Index: Longword);
-procedure DeleteCR(Gear: PGear);
-function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): boolean;
-function HHTestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
-function TestCollisionXwithGear(Gear: PGear; Dir: integer): boolean;
-function TestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
-function TestCollisionXwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
-function TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
-function TestCollisionY(Gear: PGear; Dir: integer): boolean;
-
-implementation
-uses uMisc, uConsts, uLand;
-
-const MAXRECTSINDEX = 255;
-var Count: Longword = 0;
- crects: array[0..MAXRECTSINDEX] of TCollisionEntry;
-
-procedure AddGearCR(Gear: PGear);
-begin
-{$IFDEF DEBUGFILE}AddFileLog('AddCR crects count = ' + inttostr(Count));{$ENDIF}
-TryDo(Count <= MAXRECTSINDEX, 'Collision rects array overflow', true);
-with crects[Count] do
- begin
- X:= round(Gear.X);
- Y:= round(Gear.Y);
- HWidth:= Gear.HalfWidth;
- HHeight:= Gear.HalfHeight;
- cGear:= Gear
- end;
-Gear.CollIndex:= Count;
-inc(Count)
-end;
-
-procedure UpdateCR(NewX, NewY: integer; Index: Longword);
-begin
-with crects[Index] do
- begin
- X:= NewX;
- Y:= NewY
- end
-end;
-
-procedure DeleteCR(Gear: PGear);
-begin
-{$IFDEF DEBUGFILE}AddFileLog('DelCR crects count = ' + inttostr(Count) + ' deleting ' + inttostr(Gear.CollIndex));{$ENDIF}
-if Gear.CollIndex < Pred(Count) then
- begin
- crects[Gear.CollIndex]:= crects[Pred(Count)];
- crects[Gear.CollIndex].cGear.CollIndex:= Gear.CollIndex
- end;
-Gear.CollIndex:= High(Longword);
-dec(Count)
-end;
-
-function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): boolean;
-var x1, x2, y1, y2: integer;
- i: Longword;
-begin
-x1:= round(Gear.X);
-y1:= round(Gear.Y);
-{if (Gear.State and gstOutOfHH) = 0 then
- begin
- p:= PHedgehog(Gear.Hedgehog)^.Gear;
- if (p <> nil) and
- ((x1 + Gear.HalfWidth < round(p.X) - p.HalfWidth)
- or (x1 - Gear.HalfWidth > round(p.X) + p.HalfWidth)
- or (y1 - Gear.HalfHeight > round(p.Y) + p.HalfHeight)
- or (y1 + Gear.HalfHeight < round(p.Y) - p.HalfHeight)) then Gear.State:= Gear.State or gstOutOfHH;
- end; }
-Result:= false;
-if forX then
- begin
- x1:= x1 + Dir*Gear.HalfWidth;
- x2:= x1;
- y2:= y1 + Gear.HalfHeight - 1;
- y1:= y1 - Gear.HalfHeight + 1
- end else
- begin
- y1:= y1 + Dir*Gear.HalfHeight;
- y2:= y1;
- x2:= x1 + Gear.HalfWidth - 1;
- x1:= x1 - Gear.HalfWidth + 1
- end;
-
-for i:= 0 to Pred(Count) do
- with crects[i] do
- if (Gear.CollIndex <> i)
-// if ((p.Kind = gtHedgehog) and ((p.Hedgehog <> Gear.Hedgehog) or ((Gear.State and gstOutOfHH) <> 0)))
- and (x1 <= X + HWidth)
- and (x2 >= X - HWidth)
- and (y1 <= Y + HHeight)
- and (y2 >= Y - HHeight) then
- begin
- Result:= true;
- exit
- end;
-end;
-
-function HHTestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
-var x, y, i: integer;
-begin
-Result:= false;
-y:= round(Gear.Y);
-if Dir < 0 then y:= y - Gear.HalfHeight
- else y:= y + Gear.HalfHeight;
-
-if ((y - Dir) and $FFFFFC00) = 0 then
- begin
- x:= round(Gear.X);
- if (((x - Gear.HalfWidth) and $FFFFF800) = 0)and(Land[y - Dir, x - Gear.HalfWidth] <> 0)
- or(((x + Gear.HalfWidth) and $FFFFF800) = 0)and(Land[y - Dir, x + Gear.HalfWidth] <> 0) then
- begin
- Result:= true;
- exit
- end
- end;
-
-if (y and $FFFFFC00) = 0 then
- begin
- x:= round(Gear.X) - Gear.HalfWidth + 1;
- i:= x + Gear.HalfWidth * 2 - 2;
- repeat
- if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
- inc(x)
- until (x > i) or Result;
- if Result then exit;
-
- Result:= CheckGearsCollision(Gear, Dir, false)
- end
-end;
-
-function TestCollisionXwithGear(Gear: PGear; Dir: integer): boolean;
-var x, y, i: integer;
-begin
-Result:= false;
-x:= round(Gear.X);
-if Dir < 0 then x:= x - Gear.HalfWidth
- else x:= x + Gear.HalfWidth;
-if (x and $FFFFF800) = 0 then
- begin
- y:= round(Gear.Y) - Gear.HalfHeight + 1; {*}
- i:= y + Gear.HalfHeight * 2 - 2; {*}
- repeat
- if (y and $FFFFFC00) = 0 then Result:= Land[y, x]<>0;
- inc(y)
- until (y > i) or Result;
- if Result then exit;
- Result:= CheckGearsCollision(Gear, Dir, true)
- end
-end;
-
-function TestCollisionXwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
-begin
-Gear.X:= Gear.X + ShiftX;
-Gear.Y:= Gear.Y + ShiftY;
-Result:= TestCollisionXwithGear(Gear, Dir);
-Gear.X:= Gear.X - ShiftX;
-Gear.Y:= Gear.Y - ShiftY
-end;
-
-function TestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
-var x, y, i: integer;
-begin
-Result:= false;
-y:= round(Gear.Y);
-if Dir < 0 then y:= y - Gear.HalfHeight
- else y:= y + Gear.HalfHeight;
-if (y and $FFFFFC00) = 0 then
- begin
- x:= round(Gear.X) - Gear.HalfWidth + 1; {*}
- i:= x + Gear.HalfWidth * 2 - 2; {*}
- repeat
- if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
- inc(x)
- until (x > i) or Result;
- if Result then exit;
- Result:= CheckGearsCollision(Gear, Dir, false);
- end
-end;
-
-function TestCollisionY(Gear: PGear; Dir: integer): boolean;
-var x, y, i: integer;
-begin
-Result:= false;
-y:= round(Gear.Y);
-if Dir < 0 then y:= y - Gear.HalfHeight
- else y:= y + Gear.HalfHeight;
-if (y and $FFFFFC00) = 0 then
- begin
- x:= round(Gear.X) - Gear.HalfWidth + 1; {*}
- i:= x + Gear.HalfWidth * 2 - 2; {*}
- repeat
- if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
- inc(x)
- until (x > i) or Result;
- end
-end;
-
-function TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
-begin
-Gear.X:= Gear.X + ShiftX;
-Gear.Y:= Gear.Y + ShiftY;
-Result:= TestCollisionYwithGear(Gear, Dir);
-Gear.X:= Gear.X - ShiftX;
-Gear.Y:= Gear.Y - ShiftY
-end;
-
-end.
+(*
+ * Hedgewars, a worms-like game
+ * Copyright (c) 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 uCollisions;
+interface
+uses uGears;
+{$INCLUDE options.inc}
+
+type TCollisionEntry = record
+ X, Y, HWidth, HHeight: integer;
+ cGear: PGear;
+ end;
+
+procedure AddGearCR(Gear: PGear);
+procedure UpdateCR(NewX, NewY: integer; Index: Longword);
+procedure DeleteCR(Gear: PGear);
+function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): boolean;
+function HHTestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
+function TestCollisionXwithGear(Gear: PGear; Dir: integer): boolean;
+function TestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
+function TestCollisionXwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
+function TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
+function TestCollisionY(Gear: PGear; Dir: integer): boolean;
+
+implementation
+uses uMisc, uConsts, uLand;
+
+const MAXRECTSINDEX = 255;
+var Count: Longword = 0;
+ crects: array[0..MAXRECTSINDEX] of TCollisionEntry;
+
+procedure AddGearCR(Gear: PGear);
+begin
+{$IFDEF DEBUGFILE}AddFileLog('AddCR crects count = ' + inttostr(Count));{$ENDIF}
+TryDo(Count <= MAXRECTSINDEX, 'Collision rects array overflow', true);
+with crects[Count] do
+ begin
+ X:= round(Gear.X);
+ Y:= round(Gear.Y);
+ HWidth:= Gear.HalfWidth;
+ HHeight:= Gear.HalfHeight;
+ cGear:= Gear
+ end;
+Gear.CollIndex:= Count;
+inc(Count)
+end;
+
+procedure UpdateCR(NewX, NewY: integer; Index: Longword);
+begin
+with crects[Index] do
+ begin
+ X:= NewX;
+ Y:= NewY
+ end
+end;
+
+procedure DeleteCR(Gear: PGear);
+begin
+{$IFDEF DEBUGFILE}AddFileLog('DelCR crects count = ' + inttostr(Count) + ' deleting ' + inttostr(Gear.CollIndex));{$ENDIF}
+if Gear.CollIndex < Pred(Count) then
+ begin
+ crects[Gear.CollIndex]:= crects[Pred(Count)];
+ crects[Gear.CollIndex].cGear.CollIndex:= Gear.CollIndex
+ end;
+Gear.CollIndex:= High(Longword);
+dec(Count)
+end;
+
+function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): boolean;
+var x1, x2, y1, y2: integer;
+ i: Longword;
+begin
+x1:= round(Gear.X);
+y1:= round(Gear.Y);
+{if (Gear.State and gstOutOfHH) = 0 then
+ begin
+ p:= PHedgehog(Gear.Hedgehog)^.Gear;
+ if (p <> nil) and
+ ((x1 + Gear.HalfWidth < round(p.X) - p.HalfWidth)
+ or (x1 - Gear.HalfWidth > round(p.X) + p.HalfWidth)
+ or (y1 - Gear.HalfHeight > round(p.Y) + p.HalfHeight)
+ or (y1 + Gear.HalfHeight < round(p.Y) - p.HalfHeight)) then Gear.State:= Gear.State or gstOutOfHH;
+ end; }
+Result:= false;
+if forX then
+ begin
+ x1:= x1 + Dir*Gear.HalfWidth;
+ x2:= x1;
+ y2:= y1 + Gear.HalfHeight - 1;
+ y1:= y1 - Gear.HalfHeight + 1
+ end else
+ begin
+ y1:= y1 + Dir*Gear.HalfHeight;
+ y2:= y1;
+ x2:= x1 + Gear.HalfWidth - 1;
+ x1:= x1 - Gear.HalfWidth + 1
+ end;
+
+for i:= 0 to Pred(Count) do
+ with crects[i] do
+ if (Gear.CollIndex <> i)
+// if ((p.Kind = gtHedgehog) and ((p.Hedgehog <> Gear.Hedgehog) or ((Gear.State and gstOutOfHH) <> 0)))
+ and (x1 <= X + HWidth)
+ and (x2 >= X - HWidth)
+ and (y1 <= Y + HHeight)
+ and (y2 >= Y - HHeight) then
+ begin
+ Result:= true;
+ exit
+ end;
+end;
+
+function HHTestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
+var x, y, i: integer;
+begin
+Result:= false;
+y:= round(Gear.Y);
+if Dir < 0 then y:= y - Gear.HalfHeight
+ else y:= y + Gear.HalfHeight;
+
+if ((y - Dir) and $FFFFFC00) = 0 then
+ begin
+ x:= round(Gear.X);
+ if (((x - Gear.HalfWidth) and $FFFFF800) = 0)and(Land[y - Dir, x - Gear.HalfWidth] <> 0)
+ or(((x + Gear.HalfWidth) and $FFFFF800) = 0)and(Land[y - Dir, x + Gear.HalfWidth] <> 0) then
+ begin
+ Result:= true;
+ exit
+ end
+ end;
+
+if (y and $FFFFFC00) = 0 then
+ begin
+ x:= round(Gear.X) - Gear.HalfWidth + 1;
+ i:= x + Gear.HalfWidth * 2 - 2;
+ repeat
+ if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
+ inc(x)
+ until (x > i) or Result;
+ if Result then exit;
+
+ Result:= CheckGearsCollision(Gear, Dir, false)
+ end
+end;
+
+function TestCollisionXwithGear(Gear: PGear; Dir: integer): boolean;
+var x, y, i: integer;
+begin
+Result:= false;
+x:= round(Gear.X);
+if Dir < 0 then x:= x - Gear.HalfWidth
+ else x:= x + Gear.HalfWidth;
+if (x and $FFFFF800) = 0 then
+ begin
+ y:= round(Gear.Y) - Gear.HalfHeight + 1; {*}
+ i:= y + Gear.HalfHeight * 2 - 2; {*}
+ repeat
+ if (y and $FFFFFC00) = 0 then Result:= Land[y, x]<>0;
+ inc(y)
+ until (y > i) or Result;
+ if Result then exit;
+ Result:= CheckGearsCollision(Gear, Dir, true)
+ end
+end;
+
+function TestCollisionXwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
+begin
+Gear.X:= Gear.X + ShiftX;
+Gear.Y:= Gear.Y + ShiftY;
+Result:= TestCollisionXwithGear(Gear, Dir);
+Gear.X:= Gear.X - ShiftX;
+Gear.Y:= Gear.Y - ShiftY
+end;
+
+function TestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
+var x, y, i: integer;
+begin
+Result:= false;
+y:= round(Gear.Y);
+if Dir < 0 then y:= y - Gear.HalfHeight
+ else y:= y + Gear.HalfHeight;
+if (y and $FFFFFC00) = 0 then
+ begin
+ x:= round(Gear.X) - Gear.HalfWidth + 1; {*}
+ i:= x + Gear.HalfWidth * 2 - 2; {*}
+ repeat
+ if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
+ inc(x)
+ until (x > i) or Result;
+ if Result then exit;
+ Result:= CheckGearsCollision(Gear, Dir, false);
+ end
+end;
+
+function TestCollisionY(Gear: PGear; Dir: integer): boolean;
+var x, y, i: integer;
+begin
+Result:= false;
+y:= round(Gear.Y);
+if Dir < 0 then y:= y - Gear.HalfHeight
+ else y:= y + Gear.HalfHeight;
+if (y and $FFFFFC00) = 0 then
+ begin
+ x:= round(Gear.X) - Gear.HalfWidth + 1; {*}
+ i:= x + Gear.HalfWidth * 2 - 2; {*}
+ repeat
+ if (x and $FFFFF800) = 0 then Result:= Land[y, x]<>0;
+ inc(x)
+ until (x > i) or Result;
+ end
+end;
+
+function TestCollisionYwithXYShift(Gear: PGear; ShiftX, ShiftY: integer; Dir: integer): boolean;
+begin
+Gear.X:= Gear.X + ShiftX;
+Gear.Y:= Gear.Y + ShiftY;
+Result:= TestCollisionYwithGear(Gear, Dir);
+Gear.X:= Gear.X - ShiftX;
+Gear.Y:= Gear.Y - ShiftY
+end;
+
+end.