März 5, 2012

PImage myImage;

int dimension;
int c;
boolean cFlag;

void setup() {
 background(0);
 size(200, 200);
 myImage = loadImage("ghost.png");
 dimension = (myImage.width*myImage.height);
}
void draw() {
 // Two loops allow us to visit every column (x) and every row (y).
 myImage.loadPixels();
 // Loop through every pixel column
 // Loop through every pixel column
 if (millis()%10 == 0) {
 for (int x = 0; x < myImage.width; x++ ) {
 // Loop through every pixel row
 for (int y = 0; y < myImage.height; y++ ) {
 // Use the formula to find the 1D location
 int loc = x + y * myImage.width; // The location in the pixel array is calculated via our formula: 1D pixel location = x + y * width

if (x % 2 == 0 && y % 2 == 0) { // If we are an even column

&nbsp;
 if (c>=255)
 cFlag = true;
 if (c<=0)
 cFlag = false;
 //print("*");
 if (cFlag)
 c--;
 if (!cFlag)
 c++;
 //println(c);
 myImage.pixels[loc] = color(c+50, 10+c, 100+c);
 }
 }
 }
 }
 myImage.updatePixels();
 image(myImage, 0, 0);
}