はてなブックマーク

7. ‣ ‣ ‣ void testApp::mouseMoved(int x, int y ){ ! prevMouseX = x; ! prevMouseY = y; } void testApp::mouseDragged(int x, int y, int button){ ! //1 ! float dx = x - prevMouseX; ! float dy = y - prevMouseY; ! ! // ! particle myParticle; ! myParticle.setInitialCondition(x,y, dx*0.5,dy*0.5); ! // ! particles.push_back(myParticle); ! ! // ! prevMouseX = x; ! prevMouseY = y;! }

14. ‣ #include "testApp.h" void testApp::setup(){ ! ofSetFrameRate(60);! // 60 (fps) ! ofBackgroundHex(0x000000); // ! // ! pos.x = ofGetWidth()/2; ! pos.y = ofGetHeight()/2; } void testApp::update(){ ! // ! pos.x += 4.0; //pos.x = pos.x + 3.0 ! pos.y += 3.0; //pos.y = pos.y + 4.0 } void testApp::draw(){ ! ofSetHexColor(0x3399ff); // ! ofCircle(pos.x, pos.y, 20);! // }