Creative Visualization Workshop - assignment 1

ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup(){
    // 画面基本設定
    ofSetFrameRate(60); //秒間60コマで描画
    ofBackground(0); //背景を黒に
    
    //位置と速度を初期化
    location = ofVec2f(ofGetWidth()/2, ofGetHeight()/2); //画面の中心に
    velocity = ofVec2f(ofRandom(-10, 10), ofRandom(-10, 10)); //ランダムな速度で
}

//--------------------------------------------------------------
void ofApp::update(){
    location += velocity; //速度から位置を更新
}

//--------------------------------------------------------------
void ofApp::draw(){
    //計算した位置に円を描画
    ofSetColor(31, 127, 255); //円の色
    ofDrawCircle(location, 40); //半径40の円を描画
    
    //画面の端でバウンドするように
    if (location.x < 0 || location.x > ofGetWidth()) { //画面の左右ではみ出したら
        velocity.x *= -1; //横向きの速度を反転(バウンド)
    }
    if (location.y < 0 || location.y > ofGetHeight()) { //画面の左右ではみ出したら
        velocity.y *= -1; //横向きの速度を反転(バウンド)
    }
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key){

}

//--------------------------------------------------------------
void ofApp::keyReleased(int key){

}

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

}

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

}

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

}

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

}

//--------------------------------------------------------------
void ofApp::mouseEntered(int x, int y){

}

//--------------------------------------------------------------
void ofApp::mouseExited(int x, int y){

}

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

}

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

}

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

}

ofApp.h

#pragma once

#include "ofMain.h"

class ofApp : 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 mouseEntered(int x, int y);
    void mouseExited(int x, int y);
    void windowResized(int w, int h);
    void dragEvent(ofDragInfo dragInfo);
    void gotMessage(ofMessage msg);
    
    ofVec2f location; // 位置
    ofVec2f velocity; // 速度    
};