import processing.phone.*;

Phone p;

int x, y, blockWidth, blockHeight, gridWidth, gridHeight;
int[] colorRange=new int[6];
int modWidth, modHeight;
int power;
int gridStartWidth, gridStartHeight;
int i=0;
boolean paused, randomSize;

void calcBlockWidth() {

 blockWidth=(width-modWidth)/gridWidth;
 blockHeight=(height-modHeight)/gridHeight;
}

void setup() {
 p=new Phone(this);
 p.fullscreen();
 background(0);
 int[] theColorRange={255,0,255,0,255,0};
     colorRange=theColorRange;
 modWidth=width%64; //make sure width of draw area divisible by 64
 modHeight=height%80;  //make sure height of draw area divisible by 80
 gridWidth=gridStartWidth=4;
 gridHeight=gridStartHeight=5;
 calcBlockWidth();
 randomSize=true;
}

void draw() {
 if(paused==false) {
   if (randomSize) {
     if (random(100)==7) {
       power=pow(2,random(3)+1);
       gridWidth=gridStartWidth*power;
       gridHeight=gridStartHeight*power;
       calcBlockWidth();
     }
   }
   fill(random(colorRange[0])+colorRange[1],random(colorRange[2])+colorRange[3],random(colorRange[4])+colorRange[5]);
   x=random(gridWidth-1);
   y=random(gridHeight-1);
   rect (x*blockWidth+(modWidth/2),y*blockHeight+(modHeight/2),blockWidth,blockHeight);
 }
}

void keyPressed() {
 switch (keyCode) {
 case LEFT:
   paused=false;
   gridWidth=max(gridStartWidth,gridWidth/2);
   gridHeight=max(gridStartHeight,gridHeight/2);
   calcBlockWidth();
   break;
 case RIGHT:
   paused=false;
   gridWidth=min(gridWidth*2,gridStartWidth*16);
   gridHeight=min(gridHeight*2,gridStartHeight*16);
   calcBlockWidth();
   break;
 case UP:
   paused=false;
   background(0);
   break;
 case DOWN:
   paused=!paused;
   break;
 case FIRE:
   randomSize=!randomSize;
   break;
 }

 switch (key) {
 case '1':
   int[] the1ColorRange={60,180,60,20,60,20};
   colorRange=the1ColorRange;
   background(0);
   break;
     case '2':
   int[] the2ColorRange={60,180,60,180,80,20};
   colorRange=the2ColorRange;
       background(0);
   break;
    case '3':
   int[] the3ColorRange={80,20,80,20,60,180};
   colorRange=the3ColorRange;
       background(0);
   break;
    case '4':
   int[] the4ColorRange={255,0,255,0,255,0};
   colorRange=the4ColorRange;
       background(0);
   break;
 
 }

}