package gamegui;

import java.awt.*;
import java.util.*;

import utils.*;

public class Animation extends Member
{
	public ArrayList<DynamicImage> frames;
	int currentFrame;
	public int drawInterval;
	long lastFrameChange;
	boolean reachedEnd; 	//set to true if the animation has gone through one complete cycle
	public boolean wrap;	//if true, cycles through the animation. If false, keeps showing the last frame once the others
							//are shown
	
	public Animation(String newName, int newX, int newY, int newWidth, int newHeight, int newInterval, boolean wrap)
	{
		super(newName, newX, newY, newWidth, newHeight);
		
		frames = new ArrayList<DynamicImage>();
		currentFrame = 0;
		drawInterval = newInterval;
		lastFrameChange = 0;
		reachedEnd = false;
		this.wrap = wrap;
	}
	
	public Animation(Animation copy) {
		super(copy.getName(), copy.getX(), copy.getY(), copy.getWidth(), copy.getHeight());
		frames = copy.frames;
		currentFrame = copy.currentFrame;
		drawInterval = copy.drawInterval;
		lastFrameChange = 0;
		reachedEnd = false;
		wrap = copy.wrap;
	}
	
	public int getCurrentFrame() {
		return currentFrame;
	}
	
	public void addFrame(DynamicImage newFrame)
	{
		frames.add(newFrame);
	}
	
	public void draw(Graphics g)
	{
		if(lastFrameChange == 0)
			lastFrameChange = System.nanoTime();
		
		if(System.nanoTime() - lastFrameChange > drawInterval*1000000)
		{
			currentFrame++;
			if(currentFrame >= frames.size()) {
				if(wrap)
					currentFrame = 0;
				else
					currentFrame--;
				reachedEnd = true;
			}
			
			lastFrameChange = System.nanoTime();
		}
		
    	frames.get(currentFrame).draw(g, getX(), getY());
	}
	
	public void draw(Graphics g, int x, int y)	{
		if(lastFrameChange == 0)
			lastFrameChange = System.nanoTime();
		
		if((System.nanoTime() - lastFrameChange) > drawInterval*1000000)
		{
			currentFrame++;
			if(currentFrame >= frames.size()) {
				if(wrap)
					currentFrame = 0;
				else
					currentFrame--;
				reachedEnd = true;
			}
			
			lastFrameChange = System.nanoTime();
		}
		
    	frames.get(currentFrame).draw(g, getX()+x-frames.get(currentFrame).getWidth()/2, getY()+y-frames.get(currentFrame).getHeight());
	}
	
	public boolean reachedEnd() {
		return reachedEnd;
	}
	
	public void reset() {
		reachedEnd = false;
		currentFrame = 0;
		lastFrameChange = 0;
	}
}