Better Desert Eagle and Shotgun
authorunc0rr
Thu, 05 Jan 2006 22:55:45 +0000
changeset 38 c1ec4b15d70e
parent 37 2b7f2a43b999
child 39 b78e7185ed13
Better Desert Eagle and Shotgun
hedgewars/GSHandlers.inc
hedgewars/HHHandlers.inc
hedgewars/tunsetborder.inc
hedgewars/uCollisions.pas
hedgewars/uGears.pas
hedgewars/uStore.pas
--- a/hedgewars/GSHandlers.inc	Thu Jan 05 15:54:22 2006 +0000
+++ b/hedgewars/GSHandlers.inc	Thu Jan 05 22:55:45 2006 +0000
@@ -53,7 +53,7 @@
 
 procedure CheckHHDamage(Gear: PGear);
 begin
-if Gear.dY > 0.35 then Gear.Damage:= Gear.Damage + round(25 * (abs(Gear.dY) - 0.35));
+if Gear.dY > 0.35 then Gear.Damage:= Gear.Damage + round(75 * (abs(Gear.dY) - 0.35));
 end;
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -131,7 +131,6 @@
    begin
    doMakeExplosion(round(Gear.X), round(Gear.Y), 50, EXPLAutoSound);
    DeleteGear(Gear);
-   SetAllToActive;
    exit
    end;
 CalcRotationDirAngle(Gear);
@@ -148,7 +147,6 @@
    begin
    doMakeExplosion(round(Gear.X), round(Gear.Y), 50, EXPLAutoSound);
    DeleteGear(Gear);
-   SetAllToActive;
    exit
    end;
 if (GameTicks and $3F) = 0 then
@@ -209,7 +207,6 @@
    begin
    doMakeExplosion(round(Gear.X), round(Gear.Y), 50, EXPLAutoSound);
    DeleteGear(Gear);
-   SetAllToActive
    end;
 end;
 
@@ -224,7 +221,6 @@
    begin
    doMakeExplosion(round(Gear.X), round(Gear.Y), 50, EXPLAutoSound);
    DeleteGear(Gear);
-   SetAllToActive;
    exit
    end;
 dec(Gear.Timer);
@@ -238,6 +234,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 procedure doStepShotgunShot(Gear: PGear);
 var i: LongWord;
+    t: PGear;
 begin
 AllInactive:= false;
 if Gear.Timer > 0 then
@@ -253,9 +250,12 @@
 CheckCollision(Gear);
 if (Gear.State and gstCollision) <> 0 then
    begin
-   doMakeExplosion(round(Gear.X), round(Gear.Y), 25, EXPLAllDamageInRadius);
+   t:= CheckGearsCollision(Gear, Sign(Gear.dX), true);
+   if t = nil then t:= CheckGearsCollision(Gear, Sign(Gear.dY), false);
+   if t <> nil then
+      AmmoShove(Gear, t, 25);
+   doMakeExplosion(round(Gear.X), round(Gear.Y), 25, EXPLNoDamage);
    DeleteGear(Gear);
-   SetAllToActive;
    exit
    end;
 dec(i)
@@ -265,23 +265,38 @@
 end;
 
 ////////////////////////////////////////////////////////////////////////////////
-procedure doStepDEagleShot(Gear: PGear);    // сама идея такова, что должна как то образовываться выбоина от выстрела :)
-var i: LongWord;                            // пуля и в африке пуля.. и демаж совсем другой.. и эксплоза никакого, можно даже
-begin                                       // навылет сделать, типа через одного пролетела и в другого попала... опять же
-AllInactive:= false;                        // дальше летишь меньше урон.. ой скока сразу мыслей то :))
+procedure doStepDEagleShot(Gear: PGear);
+var i, x, y: LongWord;
+    oX, oY: real;
+    t: PGear;
+begin
+AllInactive:= false;
 i:= 80;
+oX:= Gear.X;
+oY:= Gear.Y;
 repeat
-Gear.X:= Gear.X + Gear.dX;
-Gear.Y:= Gear.Y + Gear.dY;
-CheckCollision(Gear);
-if (Gear.State and gstCollision) <> 0 then
+  Gear.X:= Gear.X + Gear.dX;
+  Gear.Y:= Gear.Y + Gear.dY;
+  x:= round(Gear.X);
+  y:= round(Gear.Y);
+  if ((y and $FFFFFC00) = 0) and ((x and $FFFFF800) = 0)
+     and (Land[y, x] <> 0) then inc(Gear.Damage);
+  t:= CheckGearsCollision(Gear, Sign(Gear.dX), true);
+  if t = nil then t:= CheckGearsCollision(Gear, Sign(Gear.dY), false);
+  if t <> nil then
+     begin
+     AmmoShove(Gear, t, 12);
+     if t.CollIndex < High(Longword) then DeleteCR(t)
+     end;
+  dec(i)
+until (i = 0) or (Gear.Damage > Gear.Health);
+if Gear.Damage > 0 then
    begin
-   inc(Gear.Damage);
-   doMakeExplosion(round(Gear.X), round(Gear.Y), 2, EXPLAllDamageInRadius);
+   DrawTunnel(oX, oY, Gear.dX, Gear.dY, 82 - i, 1);
+   dec(Gear.Health, Gear.Damage);
+   Gear.Damage:= 0
    end;
-dec(i)
-until i = 0;
-if (Gear.Damage > 20) or (Gear.X < 0) or (Gear.Y < 0) or (Gear.X > 2048) or (Gear.Y > 1024) then
+if (Gear.Health <= 0) or (Gear.X < 0) or (Gear.Y < 0) or (Gear.X > 2048) or (Gear.Y > 1024) then
    DeleteGear(Gear)
 end;
 
@@ -319,7 +334,6 @@
    begin
    DeleteGear(Gear);
    AfterAttack;
-   SetAllToActive;
    exit
    end;
 HHGear:= PHedgehog(Gear.Hedgehog).Gear;
@@ -332,7 +346,6 @@
          doMakeExplosion(i, round(Gear.Y) + 3, 3, 0);
          inc(i, 1)
          end;
-   SetAllToActive;
    Gear.X:= Gear.X + Gear.dX;
    Gear.Y:= Gear.Y + 1.9
    end;
@@ -373,7 +386,7 @@
    inc(y, 2);
    inc(i)
    end;
-DrawLineExplosions(@ar, 3, round(Gear.Y) - cHHHalfHeight*2, 2, Pred(i));
+DrawHLineExplosions(@ar, 3, round(Gear.Y) - cHHHalfHeight*2, 2, Pred(i));
 Gear.dY:= PHedgehog(Gear.Hedgehog).Gear.dY;
 doStepPickHammerWork(Gear);
 Gear.doStep:= doStepPickHammerWork
@@ -618,7 +631,6 @@
       if Gear.Timer = 0 then
          begin
          doMakeExplosion(round(Gear.X), round(Gear.Y), 50, EXPLAutoSound);
-         SetAllToActive;
          DeleteGear(Gear)
          end;
       dec(Gear.Timer);
--- a/hedgewars/HHHandlers.inc	Thu Jan 05 15:54:22 2006 +0000
+++ b/hedgewars/HHHandlers.inc	Thu Jan 05 22:55:45 2006 +0000
@@ -126,10 +126,10 @@
                           amUFO: FollowGear:= AddGear(round(X), round(Y), gtUFO,          0, xx*Power/cPowerDivisor, yy*Power/cPowerDivisor);
                       amShotgun: begin
                                  PlaySound(sndShotgunReload);
-                                 FollowGear:= AddGear(round(X + xx*20), round(Y + yy*20), gtShotgunShot,  0, xx * 0.5, 0.5 * yy);
+                                 FollowGear:= AddGear(round(X), round(Y), gtShotgunShot,  0, xx * 0.5, yy * 0.5);
                                  end;
                        amDEagle: begin
-                                 FollowGear:= AddGear(round(X + xx*20), round(Y + yy*20), gtDEagleShot,  0, xx * 0.5, 0.5 * yy);
+                                 FollowGear:= AddGear(round(X), round(Y), gtDEagleShot,   0, xx * 0.5, yy * 0.5);
                                  end;
                          amSkip: TurnTimeLeft:= 0;
                    amPickHammer: CurAmmoGear:= AddGear(round(Gear.X), round(Gear.Y) + cHHHalfHeight, gtPickHammer, 0);
@@ -209,7 +209,8 @@
             Gear.State:= Gear.State or gstAttacking;
             if Gear.Power = cMaxPower then Gear.Message:= Gear.Message and not gm_Attack
                else
-               if (Ammo[CurSlot, CurAmmo].Propz and ammoprop_Power) = 0 then Attack(Gear)
+               if (Ammo[CurSlot, CurAmmo].Propz and ammoprop_Power) = 0 then
+                  Gear.Message:= Gear.Message and not gm_Attack
                   else begin
                   if Gear.Power = 0 then
                      begin
@@ -225,6 +226,7 @@
    begin
    RemoveIntersectorsCR(Gear);
    Attack(Gear);
+   StepTicks:= 40
    end;
 
 if (Gear.State and gstFalling) <> 0 then
@@ -355,7 +357,6 @@
 ////////////////////////////////////////////////////////////////////////////////
 procedure doStepHedgehogFree(Gear: PGear);
 begin
-if Gear.CollIndex < High(Longword) then DeleteCR(Gear);
 if not HHTestCollisionYwithGear(Gear, 1) then
    begin
    if (Gear.dY < 0) and HHTestCollisionYwithGear(Gear, -1) then Gear.dY:= 0;
@@ -370,6 +371,8 @@
    if ((Gear.State and gstMoving) <> 0) then Gear.dX:= Gear.dX * Gear.Friction
    end;
 
+if (Gear.State <> 0) and (Gear.CollIndex < High(Longword)) then DeleteCR(Gear);
+
 
 if (Gear.State and gstMoving) <> 0 then
    if TestCollisionXwithGear(Gear, Sign(Gear.dX)) then
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hedgewars/tunsetborder.inc	Thu Jan 05 22:55:45 2006 +0000
@@ -0,0 +1,17 @@
+        begin
+        X:= X + dX;
+        Y:= Y + dY;
+        tx:= round(X);
+        ty:= round(Y);
+        if ((ty and $FFFFFC00) = 0) and ((tx and $FFFFF800) = 0)and (Land[ty, tx] <> 0) then
+        case LandSurface.format.BytesPerPixel of
+             1: ;
+             2: PWord(p + LandSurface.pitch * ty + tx * 2)^:= cExplosionBorderColor;
+             3: begin
+                PByte(p + LandSurface.pitch * ty + tx * 3 + 0)^:= cExplosionBorderColor and $FF;
+                PByte(p + LandSurface.pitch * ty + tx * 3 + 1)^:= (cExplosionBorderColor shr 8) and $FF;
+                PByte(p + LandSurface.pitch * ty + tx * 3 + 2)^:= (cExplosionBorderColor shr 16);
+                end;
+             4: PLongword(p + LandSurface.pitch * ty + tx * 4)^:= cExplosionBorderColor;
+             end
+	end;
\ No newline at end of file
--- a/hedgewars/uCollisions.pas	Thu Jan 05 15:54:22 2006 +0000
+++ b/hedgewars/uCollisions.pas	Thu Jan 05 22:55:45 2006 +0000
@@ -44,7 +44,7 @@
 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  CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): PGear;
 function  HHTestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
 function TestCollisionXwithGear(Gear: PGear; Dir: integer): boolean;
 function TestCollisionYwithGear(Gear: PGear; Dir: integer): boolean;
@@ -94,11 +94,11 @@
 dec(Count)
 end;
 
-function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): boolean;
+function CheckGearsCollision(Gear: PGear; Dir: integer; forX: boolean): PGear;
 var x1, x2, y1, y2: integer;
     i: Longword;
 begin
-Result:= false;
+Result:= nil;
 if Count = 0 then exit;
 x1:= round(Gear.X);
 y1:= round(Gear.Y);
@@ -125,7 +125,7 @@
          and (y1 <= Y + HHeight)
          and (y2 >= Y - HHeight) then
              begin
-             Result:= true;
+             Result:= crects[i].cGear;
              exit
              end;
 end;
@@ -159,7 +159,7 @@
    until (x > i) or Result;
    if Result then exit;
 
-   Result:= CheckGearsCollision(Gear, Dir, false)
+   Result:= CheckGearsCollision(Gear, Dir, false) <> nil
    end
 end;
 
@@ -179,7 +179,7 @@
      inc(y)
    until (y > i) or Result;
    if Result then exit;
-   Result:= CheckGearsCollision(Gear, Dir, true)
+   Result:= CheckGearsCollision(Gear, Dir, true) <> nil
    end
 end;
 
@@ -208,7 +208,7 @@
      inc(x)
    until (x > i) or Result;
    if Result then exit;
-   Result:= CheckGearsCollision(Gear, Dir, false);
+   Result:= CheckGearsCollision(Gear, Dir, false) <> nil;
    end
 end;
 
--- a/hedgewars/uGears.pas	Thu Jan 05 15:54:22 2006 +0000
+++ b/hedgewars/uGears.pas	Thu Jan 05 22:55:45 2006 +0000
@@ -57,7 +57,7 @@
              Friction  : Real;
              Message : Longword;
              Hedgehog: pointer;
-             Health, Damage: LongWord;
+             Health, Damage: integer;
              CollIndex: Longword;
              Tag: integer;
              end;
@@ -88,6 +88,7 @@
 
 procedure DeleteGear(Gear: PGear); forward;
 procedure doMakeExplosion(X, Y, Radius: integer; Mask: LongWord); forward;
+procedure AmmoShove(Ammo, Gear: PGear; Power: Longword); forward;
 function  CheckGearNear(Gear: PGear; Kind: TGearType; rX, rY: integer): PGear; forward;
 procedure SpawnBoxOfSmth; forward;
 procedure AfterAttack; forward;
@@ -205,7 +206,8 @@
                 end;
   gtDEagleShot: begin
                 Result.HalfWidth:= 1;
-                Result.HalfHeight:= 1
+                Result.HalfHeight:= 1;
+                Result.Health:= 50
                 end;
      end;
 if GearsList = nil then GearsList:= Result
@@ -541,6 +543,7 @@
                           inc(Gear.Damage, dmg);
                           Gear.dX:= Gear.dX + dmg / 200 * sign(Gear.X - X);
                           Gear.dY:= Gear.dY + dmg / 200 * sign(Gear.Y - Y);
+                          Gear.Active:= true;
                           FollowGear:= Gear
                           end;
                  gtGrave: Gear.dY:= - dmg / 250;
@@ -550,6 +553,19 @@
       end
 end;
 
+procedure AmmoShove(Ammo, Gear: PGear; Power: Longword);
+begin
+case Gear.Kind of
+     gtHedgehog: begin
+                 inc(Gear.Damage, Power);
+                 Gear.dX:= Ammo.dX * Power * 0.01;
+                 Gear.dY:= Ammo.dY * Power * 0.01;
+                 Gear.Active:= true;
+                 FollowGear:= Gear
+                 end;
+     end;
+end;
+
 procedure AssignHHCoords;
 var Gear: PGear;
     pX, pY: integer;
--- a/hedgewars/uStore.pas	Thu Jan 05 15:54:22 2006 +0000
+++ b/hedgewars/uStore.pas	Thu Jan 05 22:55:45 2006 +0000
@@ -52,7 +52,8 @@
 procedure DrawCaption(X, Y: integer; Rect: TSDL_Rect; Surface: PSDL_Surface; const fromTempSurf: boolean = false);
 procedure DrawHedgehog(X, Y: integer; Dir: integer; Pos, Step: LongWord; Surface: PSDL_Surface);
 procedure DrawExplosion(X, Y, Radius: integer);
-procedure DrawLineExplosions(ar: PRangeArray; Radius: Longword; y, dY: integer; Count: Byte);
+procedure DrawHLineExplosions(ar: PRangeArray; Radius: Longword; y, dY: integer; Count: Byte);
+procedure DrawTunnel(X, Y, dX, dY: real; ticks, HalfWidth: integer);
 procedure RenderHealth(var Hedgehog: THedgehog);
 function  RenderString(var s: shortstring; Color, Pos: integer): TSDL_Rect;
 procedure AddProgress;
@@ -69,8 +70,7 @@
        HHSurface: PSDL_Surface;
 
 procedure DrawExplosion(X, Y, Radius: integer);
-var ty, tx: integer;
-    p: integer;
+var ty, tx, p: integer;
 begin
 for ty:= max(-Radius, -y) to min(radius, 1023 - y) do
     for tx:= max(0, round(x-radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(x+radius*sqrt(1-sqr(ty/radius)))) do
@@ -79,7 +79,7 @@
 if SDL_MustLock(LandSurface) then
    SDLTry(SDL_LockSurface(LandSurface) >= 0, true);
 
-p:= Longword(LandSurface.pixels);
+p:= integer(LandSurface.pixels);
 case LandSurface.format.BytesPerPixel of
      1: ;// not supported
      2: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
@@ -103,21 +103,19 @@
      1: ;// not supported
      2: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(x-radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(x+radius*sqrt(1-sqr(ty/radius)))) do
-               if PWord(p + LandSurface.pitch*(y + ty) + tx * 2)^ <> 0 then
+               if Land[y + ty, tx] <> 0 then
                   PWord(p + LandSurface.pitch*(y + ty) + tx * 2)^:= cExplosionBorderColor;
      3: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(x-radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(x+radius*sqrt(1-sqr(ty/radius)))) do
-                if (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 0)^ <> 0)
-                or (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 1)^ <> 0)
-                or (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 2)^ <> 0)
-                then begin
+               if Land[y + ty, tx] <> 0 then
+                begin
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 0)^:= cExplosionBorderColor and $FF;
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 1)^:= (cExplosionBorderColor shr 8) and $FF;
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 2)^:= (cExplosionBorderColor shr 16);
                 end;
      4: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(x-radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(x+radius*sqrt(1-sqr(ty/radius)))) do
-                if PLongword(p + LandSurface.pitch*(y + ty) + tx * 4)^ <> 0 then
+               if Land[y + ty, tx] <> 0 then
                    PLongword(p + LandSurface.pitch*(y + ty) + tx * 4)^:= cExplosionBorderColor;
      end;
 
@@ -127,13 +125,13 @@
 SDL_UpdateRect(LandSurface, X - Radius, Y - Radius, Radius * 2, Radius * 2)
 end;
 
-procedure DrawLineExplosions(ar: PRangeArray; Radius: Longword; y, dY: integer; Count: Byte);
+procedure DrawHLineExplosions(ar: PRangeArray; Radius: Longword; y, dY: integer; Count: Byte);
 var tx, ty, i, p: integer;
 begin
 if SDL_MustLock(LandSurface) then
    SDL_LockSurface(LandSurface);
 
-p:= Longword(LandSurface.pixels);
+p:= integer(LandSurface.pixels);
 for i:= 0 to Pred(Count) do
     begin
     case LandSurface.format.BytesPerPixel of
@@ -164,21 +162,19 @@
      1: ;
      2: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(ar[i].Left - radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(ar[i].Right + radius*sqrt(1-sqr(ty/radius)))) do
-               if PWord(p + LandSurface.pitch*(y + ty) + tx * 2)^ <> 0 then
+               if Land[y + ty, tx] <> 0 then
                   PWord(p + LandSurface.pitch*(y + ty) + tx * 2)^:= cExplosionBorderColor;
      3: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(ar[i].Left - radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(ar[i].Right + radius*sqrt(1-sqr(ty/radius)))) do
-                if (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 0)^ <> 0)
-                or (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 1)^ <> 0)
-                or (PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 2)^ <> 0)
-                then begin
+               if Land[y + ty, tx] <> 0 then
+                begin
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 0)^:= cExplosionBorderColor and $FF;
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 1)^:= (cExplosionBorderColor shr 8) and $FF;
                 PByte(p + LandSurface.pitch*(y + ty) + tx * 3 + 2)^:= (cExplosionBorderColor shr 16);
                 end;
      4: for ty:= max(-Radius, -y) to min(Radius, 1023 - y) do
             for tx:= max(0, round(ar[i].Left - radius*sqrt(1-sqr(ty/radius)))) to min(2047, round(ar[i].Right + radius*sqrt(1-sqr(ty/radius)))) do
-                if PLongword(p + LandSurface.pitch*(y + ty) + tx * 4)^ <> 0 then
+               if Land[y + ty, tx] <> 0 then
                    PLongword(p + LandSurface.pitch*(y + ty) + tx * 4)^:= cExplosionBorderColor;
      end;
     inc(y, dY)
@@ -188,6 +184,79 @@
    SDL_UnlockSurface(LandSurface);
 end;
 
+//
+//  - (dX, dY) - direction, vector of length = 0.5
+//
+procedure DrawTunnel(X, Y, dX, dY: real; ticks, HalfWidth: integer);
+var nx, ny: real;
+    i, t, tx, ty, p: integer;
+begin  // (-dY, dX) is (dX, dY) turned by PI/2
+if SDL_MustLock(LandSurface) then
+   SDL_LockSurface(LandSurface);
+
+nx:= X + dY * (HalfWidth + 8);
+ny:= Y - dX * (HalfWidth + 8);
+p:= integer(LandSurface.pixels);
+
+for i:= 0 to 7 do
+    begin
+    X:= nx - 8 * dX;
+    Y:= ny - 8 * dY;
+    for t:= -8 to ticks + 8 do
+        {$include tunsetborder.inc}
+    nx:= nx - dY;
+    ny:= ny + dX;
+    end;
+
+for i:= -HalfWidth to HalfWidth do
+    begin
+    X:= nx - dX * 8;
+    Y:= ny - dY * 8;
+    for t:= 0 to 7 do
+        {$include tunsetborder.inc}
+    X:= nx;
+    Y:= ny;
+    for t:= 0 to ticks do
+        begin
+        X:= X + dX;
+        Y:= Y + dY;
+        tx:= round(X);
+        ty:= round(Y);
+        if ((ty and $FFFFFC00) = 0) and ((tx and $FFFFF800) = 0) then
+           begin
+           Land[ty, tx]:= 0;
+           case LandSurface.format.BytesPerPixel of
+                1: ;
+                2: PWord(p + LandSurface.pitch * ty + tx * 2)^:= 0;
+                3: begin
+                   PByte(p + LandSurface.pitch * ty + tx * 3 + 0)^:= 0;
+                   PByte(p + LandSurface.pitch * ty + tx * 3 + 1)^:= 0;
+                   PByte(p + LandSurface.pitch * ty + tx * 3 + 2)^:= 0;
+                   end;
+                4: PLongword(p + LandSurface.pitch * ty + tx * 4)^:= 0;
+                end
+           end
+        end;
+    for t:= 0 to 7 do
+        {$include tunsetborder.inc}
+    nx:= nx - dY;
+    ny:= ny + dX;
+    end;
+
+for i:= 0 to 7 do
+    begin
+    X:= nx - 8 * dX;
+    Y:= ny - 8 * dY;
+    for t:= -8 to ticks + 8 do
+        {$include tunsetborder.inc}
+    nx:= nx - dY;
+    ny:= ny + dX;
+    end;
+
+if SDL_MustLock(LandSurface) then
+   SDL_UnlockSurface(LandSurface)
+end;
+
 procedure StoreInit;
 begin
 StoreSurface  := SDL_CreateRGBSurface(SDL_HWSURFACE, 576, 1024, cBits, PixelFormat.RMask, PixelFormat.GMask, PixelFormat.BMask, 0);