Recitation 7, Zhenming Wang, Professor Young

1. Recitation 7:  This recitation provided us a chance to practice the function in processing which integrates keyboard input into the picture processing draws. It was challenging at first, however, after I made clear of how the function works, it’s not that diffcult.
2. The code of my exercise is: 

	int i = 30; void setup() {
	size(500, 500);
	frameRate(4);
	background(0);
	rect(30, 20, 55, 55, 7);
	fill(255, 50, 60);
	}
	void draw() {
	background(0);
	rect(i, i, 50, 50, 7);
	fill(i, i, 50);
	}
	void keyPressed() {
	if (key == CODED) {
	if (keyCode == DOWN) {
	i++;
	}
	}
	}

2. Homework:

int r = 80;
int i = 1;
int l = 0;
int m = 300;
int n = 300;
void setup(){
size(600,600);
frameRate(60);
colorMode(HSB);
}
void draw(){
background(255);
strokeWeight(10);
stroke(l,255,255);
if(l < 255){
l ++;
}
ellipse(m,n,r,r);
r += i;
if(r >= 300){
i = -i;
r += i;
}
if(r <= 80){
i = 1;
r += i;
}
}
void keyPressed(){
if(key == CODED){
if(keyCode == UP){
n -= 20;
}if(keyCode == DOWN){
n += 20;
}if(keyCode == LEFT){
m -= 20;
}if(keyCode == RIGHT){
m += 20;
}
}
}