ofLecture 1

testApp.cpp

#include "testApp.h"

#define MAX_NUM 1000

ofPoint points[MAX_NUM];
ofPoint direction[MAX_NUM];
float rad[MAX_NUM];
ofColor colors[MAX_NUM];

//--------------------------------------------------------------
void testApp::setup(){
    ofSetFrameRate(60);
    ofSetVerticalSync(true);
    ofEnableAlphaBlending();
    
    ofBackground(0, 0, 0);
    ofEnableSmoothing();
    
    int w = ofGetWidth();
    int h = ofGetHeight();
    
    for (int i = 0; i < MAX_NUM; ++i) {
        rad[i] = ofRandom(25.0, 50.0);
    }
    
    for (int i = 0; i < MAX_NUM; ++i) {
        int x = ofRandom(w);
        int y = ofRandom(h);
        
        points[i].set(x, y);
    }
    
    for (int i = 0; i < MAX_NUM; ++i) {
        float x = ofRandom(-5, 5);
        float y = ofRandom(-5, 5);
        
        direction[i].set(x, y);
    }
    
    for (int i = 0; i < MAX_NUM; ++i) {
        colors[i].r = ofRandom(255);
        colors[i].g = ofRandom(255);
        colors[i].b = ofRandom(255);
        colors[i].a = ofRandom(32, 64);
    }
}

//--------------------------------------------------------------
void testApp::update(){
    for (int i = 0; i < MAX_NUM; ++i) {
        points[i].x += direction[i].x;
        
        if (points[i].x > ofGetWidth() || points[i].x < 0) {
            direction[i].x *= -1;
        }
        if (points[i].y > ofGetHeight() || points[i].y < 0) {
            direction[i].y *= -1;
        }
        
        points[i].y += direction[i].y;
    }
}

//--------------------------------------------------------------
void testApp::draw(){
    for (int i = 0; i < MAX_NUM; ++i) {
        ofSetColor(colors[i]);
        ofCircle(points[i].x, points[i].y, rad[i]);
    }
}

//--------------------------------------------------------------
void testApp::keyPressed(int key){
    
    cout << key << endl;
    
    if (key == 'c' || key == 'C') {
//        r = ofRandom(255);
//        g = ofRandom(255);
//        b = ofRandom(255);
    }
}

//--------------------------------------------------------------
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){ 

}