package net.minecraft.world.entity;

import java.util.function.Consumer;

public class AnimationState {
	private static final int STOPPED = Integer.MIN_VALUE;
	private int startTick = Integer.MIN_VALUE;

	public void start(int tickCount) {
		this.startTick = tickCount;
	}

	public void startIfStopped(int tickCount) {
		if (!this.isStarted()) {
			this.start(tickCount);
		}
	}

	public void animateWhen(boolean condition, int tickCount) {
		if (condition) {
			this.startIfStopped(tickCount);
		} else {
			this.stop();
		}
	}

	public void stop() {
		this.startTick = Integer.MIN_VALUE;
	}

	public void ifStarted(Consumer<AnimationState> action) {
		if (this.isStarted()) {
			action.accept(this);
		}
	}

	public void fastForward(int duration, float speed) {
		if (this.isStarted()) {
			this.startTick -= (int)(duration * speed);
		}
	}

	public long getTimeInMillis(float gmaetime) {
		float f = gmaetime - this.startTick;
		return (long)(f * 50.0F);
	}

	public boolean isStarted() {
		return this.startTick != Integer.MIN_VALUE;
	}

	public void copyFrom(AnimationState other) {
		this.startTick = other.startTick;
	}
}