of app for twitter avatar (press space to save images, stitch it together with a gif animator)

testApp.cpp

#include "testApp.h"

//--------------------------------------------------------------
void testApp::setup(){
    for (int i = 0; i <= 255; i++) {
        ofColor c;
        c.setHsb((i % 16) * 16, 255, i);
        colors.push_back(c);
    }
    
    width = 5;
}

//--------------------------------------------------------------
void testApp::update(){

}

//--------------------------------------------------------------
void testApp::draw(){
    mod2 = -1;
    for (int j = 0; j <= 99; j++) {
        mod = 0;
        for (int i = 0; i <= 255; i++) {
            ofSetColor(colors[i]);
            ofRect((i % 16)*width+((j % 10)*width*16),mod*width+(mod2*width*16), width, width);
            if (((i+1) % 16) == 0) {
                mod = mod + 1;
            }
        }
        if (((j+1) % 10) == 0) {
            mod2 = mod2 + 1;
        }
    }
}

//--------------------------------------------------------------
void testApp::keyPressed(int key){
    random_shuffle ( colors.begin(), colors.end() );
    ofImage grab;
    grab.grabScreen(0, 0, width*16, width*16);
    grab.saveImage(ofToString(ofGetFrameNum()) + ".png");
}

//--------------------------------------------------------------
void testApp::keyReleased(int key){
    
}

//--------------------------------------------------------------
void testApp::mouseMoved(int x, int y){

}

//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::windowResized(int w, int h){

}

//--------------------------------------------------------------
void testApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){ 

}

testApp.h

#pragma once

#include "ofMain.h"

class testApp : public ofBaseApp{
	public:
		void setup();
		void update();
		void draw();
		
		void keyPressed(int key);
		void keyReleased(int key);
		void mouseMoved(int x, int y);
		void mouseDragged(int x, int y, int button);
		void mousePressed(int x, int y, int button);
		void mouseReleased(int x, int y, int button);
		void windowResized(int w, int h);
		void dragEvent(ofDragInfo dragInfo);
		void gotMessage(ofMessage msg);
    
    
    vector<ofColor> colors;
    int width;
    float mod, mod2;
};