HW05

PImage img;

int i, j, s, f, y;

void setup()

{

size(1000, 400);

i = 0;

j = 0;

s = 100;

f = 0;

y = 20;

img = loadImage("sun3.jpg");

frameRate(20);

}

void draw()

{

background(255);

// left to right

if((keyPressed == true) && ((key == 'A') || (key == 'a')) ) {

i = i + 20;

}

// right to left

if((keyPressed == true) && ((key == 'B') || (key == 'b')) ) {

i = i - 20;

}

// left to right

if((keyPressed == true) && ((key == 'C') || (key == 'c')) ) {

i += y;

if(i>900) {

i = 900;

y = -y;

}

else if(i<0) {

i = 0;

y = -y;

}

}

// vertical movement

if((keyPressed == true) && ((key == 'D') || (key == 'd')) ) {

j = j + 20;

}

if((keyPressed == true) && ((key == 'E') || (key == 'e')) ) {

j = j - 20;

}

if((keyPressed == true) && ((key == 'F') || (key == 'f')) ) {

j = j + 5;

}

// zoom in and out

if((keyPressed == true) && ((key == 'I') || (key == 'i')) ) {

s = s + 10;

}

if((keyPressed == true) && ((key == 'O') || (key == 'o')) ) {

s = s - 10;

}

// fade in and out

if((keyPressed == true) && ((key == 'H') || (key == 'h')) ) {

f = f + 10;

}

if((keyPressed == true) && ((key == 'J') || (key == 'j')) ) {

f = f - 10;

}

image(img, i, j, s, s);

tint(255, f, f); // Tint blue

}

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In this exercise, I learned how to control the picture through computer keyboard. The picture can move from left to right or from right to left, even up and down. I can change the color to red and white. In addition to, It can be larger and smaller with keyboard, i and o.