57 lines
1.1 KiB
ObjectPascal
57 lines
1.1 KiB
ObjectPascal
unit snake_m;
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interface
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uses creature_m;
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procedure UpdateSnakeState(var s: creature);
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procedure InitRandomSnake(var s: creature);
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const
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SnakeMovespeed = 2;
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implementation
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uses arena_m, Math, math_m;
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const
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MinToReverse = 2;
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MaxToReverse = 75;
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procedure InitSnake(var s: creature; x, y, sigdx, sigdy: integer);
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begin
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s.t := creatureSnake;
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s.curX := x;
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s.curY := y;
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s.dX := SnakeMovespeed * sigdx;
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s.dY := SnakeMovespeed * sigdy;
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s.alive := true;
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s.moveSpeed := SnakeMovespeed;
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s.beforeReverse := RandomLR(MinToReverse, MaxToReverse);
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s.diagonalMove := false
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end;
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procedure InitRandomSnake(var s: creature);
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var
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x, y, sigdx, sigdy: integer;
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begin
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sigdx := IfThen(RandomBool, 1, -1);
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sigdy := IfThen(RandomBool, 1, -1);
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x := RandomLR(2, ArenaW - 1);
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y := RandomLR(2, ArenaH - 1);
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InitSnake(s, x, y, sigdx, sigdy)
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end;
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procedure UpdateSnakeState(var s: creature);
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begin
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s.beforeReverse := s.beforeReverse - 1;
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if s.beforeReverse = 0 then
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begin
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s.beforeReverse := RandomLR(MinToReverse, MaxToReverse);
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s.dX := s.dX * -1;
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s.dY := s.dY * -1
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end
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end;
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end.
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