html5demos/map.html at master · timonwang/html5demos · GitHub

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<!DOCTYPE html>
<html>
<head>
  <script src="processing.js"></script>
  <script src="init.js"></script>

</head>
<body>
<script type="application/processing">

Piece[][] ps;
int mapHSize = mapWSize = 20;
float y = x = 50;
int ph = pw = 20;
int step = 5;


void setup() {
	size(200,200);
	frameRate(0);
	smooth();
	init();
	//noLoop();
}

void draw() {
	background(0);
	render();
	offset();
}

void init(){

	ps = new Piece[mapHSize][mapWSize];
	for(int i = 0 ; i < mapHSize ;i++){
		for( int j = 0 ; j < mapWSize ; j++){
			int itype = random(0, 3);
			if(i == 0 || j == 0 || i == mapHSize - 1 || j == mapWSize - 1){
				itype = 4;
			}
			int istate = 0;
			int ilevel = 1;
			ps[i][j] = new Piece(pw,pw,itype,istate,ilevel,j*pw,i*pw);
		}
	}
}


void offset(){

	if(enable){
		if(mouseX >= width - pw*2){
			x += abs(step * sin(a));
		}else if( mouseX  <=  pw*2){
			x -= abs(step * sin(a));
		}

		if(mouseY >= height - ph*2){
			y += abs(step * cos(a));
		}else if(mouseY <= ph*2){
			y -= abs(step * cos(a));
		}

	}


}

boolean enable;
float a;
void mouseMoved() {
	a = atan2(mouseX-width/2,mouseY-height/2);
	if((mouseX >= width - pw*2)||(mouseX  <=  pw*2)||(mouseY > height - pw*2)||(mouseY <= pw*2)){
		if(mouseX >= width - pw*2){
			if(mouseY <= pw*2){
				//右上
				cursor('ne-resize');
			}else if(mouseY > height - pw*2){
				//右下
				cursor('se-resize');
			}else{
				//右
				cursor('e-resize');
			}
		}else if(mouseX  <=  pw*2){
			if(mouseY <= pw*2){
				//左上
				cursor('nw-resize');
			}else if(mouseY > height - pw*2){
				//左下
				cursor('sw-resize');
			}else{
				//左
				cursor('w-resize');
			}
		}else if(mouseY <= pw*2){
			//上
			cursor('n-resize')
		}else if(mouseY > height - pw*2){
			//下
			cursor('s-resize')
		}
		enable = true;
	}else{
		cursor('default')
		enable = false;
	}

}

void render(){
	for(int i = floor(y / pw),h = ceil((y + height)/pw); i < h ;i++){
		for(int j = floor(x / pw),w = ceil((x + width)/pw); j < w ; j++){
			if(ps[i] && ps[i][j]){
				int r = ceil(ps[i][j].type) == 0 ? 255 : 58;
				int g = ceil(ps[i][j].type) == 1 ? 255 : 79;
				int b = ceil(ps[i][j].type) == 2 ? 255 : 112;
				if(ceil(ps[i][j].type) == 4){
					r = 255;
					g = 0;
					b = 0;
				}
				//int a = p.state
				fill(r, g, b);
				rect((ps[i][j].x - x) , (ps[i][j].y - y),  ps[i][j].width ,ps[i][j].height);
			}

		}
	}
}

class Piece{
	int height;
	int width;
	int type;
	int state;
	int level;
	int x;
	int y;

	Piece(int iheight, int iwidth , int itype, int istate , int ilevel,int ix, int iy ){
		height = iheight;
		width = iwidth;
		type = itype;
		state = istate;
		level = ilevel;
		x = ix;
		y = iy;
	}
}
</script>
<canvas width="200" height="200"></canvas>
</body>
</html>