package com.dazkins.CityTycoon.gfx;

import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import java.util.Arrays;
import java.util.Random;

public class Bitmap implements Cloneable{
	public int w,h;
	public int[] pixels;
	
	public Bitmap(Bitmap b){
		this.w=b.w;
		this.h=b.h;
		this.pixels=b.pixels;
	}
	
	public Bitmap(BufferedImage img){
		if(img!=null){		
			this.w=img.getWidth();
			this.h=img.getHeight();
			pixels=((DataBufferInt)img.getRaster().getDataBuffer()).getData();
		}
	}
	
	public Bitmap(int w, int h, int[] pixels){
		this.w=w;
		this.h=h;
		this.pixels=pixels;
	}
	
	public Bitmap(int w,int h,int color){
		this.w=w;
		this.h=h;
		this.pixels = new int[w*h];
		for(int i = 0; i < w * h; i++){
			this.pixels[i] = color;
		}
	}
	
	public Bitmap(int width, int height) {
		this.w=width;
		this.h=height;
		this.pixels = new int[w*h];
	}

	public void randomize(){
		for(int i=0;i<pixels.length;i++){
			pixels[i] = new Random().nextInt(0xFFFFFF);
		}
	}
	
	public void render(Bitmap b,int xp,int yp,boolean xFlip,boolean yFlip){
		int x0 = xp;
		int y0 = yp;
		int x1 = xp + b.w;
		int y1 = yp + b.h;
		
		if(x0 < 0) x0 = 0;
		if(x1 > this.w) x1 = this.w;
		if(y0 < 0) y0 = 0;
		if(y1 > this.h) y1 = this.h;
		
		for(int x = x0; x < x1; x++){
			for(int y = y0; y < y1; y++){
				int pixelPos = (x-xp) + ((y-yp)*b.w);
				if(xFlip && !yFlip){
					pixelPos = (b.w-(x-xp+1)) + (((y-yp))*b.w);
				}else if(yFlip && !xFlip){
					pixelPos = ((x-xp)) + ((b.h-(y-yp+1))*b.w);
				}else if(yFlip && xFlip){
					pixelPos = (b.w-(x-xp+1)) + ((b.h-(y-yp+1))*b.w);
				}
				if(b.pixels[pixelPos] != 0xFFFF00FF){
					this.pixels[x+y*w] = b.pixels[pixelPos];
				}
			}
		}
	}
	
	public void renderWithModifiedColour(Bitmap b,int xp,int yp,boolean xFlip,boolean yFlip,int col){
		Bitmap b0 = new Bitmap(b.w,b.h);
		
		for(int i=0;i<b.pixels.length;i++){
			b0.pixels[i] = b.pixels[i];
		}
		
		for(int i=0;i<b0.pixels.length;i++){
			if(b0.pixels[i] != 0xFFFF00FF){
				b0.pixels[i]+=col;
			}
		}

		render(b,xp,yp,xFlip,yFlip);
	}
	
	public void renderWithColourReplace(Bitmap b,int xp,int yp,boolean xFlip,boolean yFlip,int col){
		Bitmap b0 = new Bitmap(b.w,b.h);
		
		for(int i=0;i<b.pixels.length;i++){
			b0.pixels[i] = b.pixels[i];
		}
		
		for(int i=0;i<b0.pixels.length;i++){
			if(b0.pixels[i] != 0xFFFF00FF){
				b0.pixels[i] = col;
			}
		}
		
		render(b0,xp,yp,xFlip,yFlip);
	}
	
	public void renderWithColourOffset(Bitmap b,int xp,int yp,boolean xFlip,boolean yFlip,int col1[],int col2[]){
		Bitmap b0 = new Bitmap(b);
		
		for(int i=0;i<b0.pixels.length;i++){
			for(int c=0;c<col1.length;c++){
				if(b0.pixels[i]==col1[c]){
					b0.pixels[i] = col2[c];
				}
			}
		}
		
		render(b0,xp,yp,xFlip,yFlip);
	}
}