34 lines
1.1 KiB
C#
34 lines
1.1 KiB
C#
using Godot;
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namespace FOU.Scripts.Elements;
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public abstract class Liquid : Element {
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public const int MAX_VERTICAL_SPREAD = 3;
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protected Liquid(int x, int y, ref Chunk chunk) : base(x, y, chunk) { }
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public override bool Update(int currentFrame) {
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if (!base.Update(currentFrame)) return false;
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if (LastMove + STEPS_UNTIL_INACTIVE < currentFrame) Active = false;
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Tick();
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return true; // not necessarily end, subclasses could do some more things
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}
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protected override void Tick() {
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Vector2I randomDirection = RandomDirectionDown();
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if (randomDirection.Y != 0)
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randomDirection *= Vector2I.Left * (int)(GD.Randi() % MAX_VERTICAL_SPREAD);
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if (Chunk.IsEmpty(Position + Vector2I.Down))
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Chunk.Swap(this, Position + Vector2I.Down);
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else if (Chunk.IsEmpty(Position + randomDirection))
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Chunk.Swap(this, Position + Vector2I.Right * randomDirection);
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else if (Chunk.IsEmpty(Position + randomDirection))
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Chunk.Swap(this, Position + Vector2I.Right * randomDirection * VERTICAL_OPPOSITE);
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}
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}
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