package src;

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

public class map {
	int mapD[][];	//地圖數(shù)組
	int mapX,mapY;	//地圖偏移
	Image img_map[];//地圖圖片數(shù)組
	int pmW,pmH;
	
	public void mapInit(int map[][],Image img[],int pw,int ph){
		mapX = 0;
		mapY = 0;
		mapD = map;
		img_map = img;
		pmW = pw;
		pmH = ph;
	}
	
	/**
	 * 地圖移動(dòng)
	 * @param x
	 * @param y
	 */
	public void mapMov(int x,int y){
		mapX = -(x - (pmW/2));
		mapY = -(y - (pmH/2));
		
		if(mapX > 0){
			mapX = 0;
		}
		if(mapX < -(mapD[0].length*16-pmW)){
			mapX = -(mapD[0].length*16-pmW);
		}
		if(mapY>0){
			mapY = 0;
		}
		if(mapY < -(mapD.length*16-pmH)){
			mapY = -(mapD.length*16-pmH);
		}
	}
	/**
	 * 地圖顯示
	 * @param g
	 */
	public void showMap(Graphics g){
		for(int i = 0 ; i < mapD.length ; i ++){
			for(int j = 0 ; j < mapD[0].length ; j++){
				if(mapD[i][j] != 0 
				&& (mapX+j*16) <= pmW 
				&& (mapX+j*16) >= -16
				&& (mapY+i*16) <= pmH
				&& (mapY+i*16) >= -16){
					g.drawImage(img_map[mapD[i][j]-1], mapX+j*16, mapY+i*16, 20);
				}
			}
		}
	}
}