ofnode_orbit_test.cpp

#include "ofMain.h"



class ofApp : public ofBaseApp {

	ofVboMesh mSphere;
	ofNode    mNode;
	ofNode	  mNode1;
	ofNode	  mNode2;

	ofCamera  mCam1;

	bool mOrb = false;

public:
	void setup() {

		mSphere = ofSpherePrimitive(100, 6).getMesh();

		ofSetBackgroundColor(ofFloatColor(0.3));
		ofEnableDepthTest();

		mCam1.enableOrtho();
		mCam1.setPosition(0, 200, 0);
		mCam1.lookAt({ 0.f,0.f,0.f }, { 0.f, 0.f, -1.f });

	};

	void update() {

		mNode = ofNode();
		mNode1 = ofNode();
		mNode2 = ofNode();

		mNode2.setParent(mNode);
		mNode.orbit(90, 0, 100);

		// at this point i would expect mNode2 to be congruent with its parent node
		mNode2.truck(-100.f);

		// now i would expect mNode2 to be 100 units behind its parent node on its x axis
		// and i would expect mNode1 to store the current state of mNode2, so that we
		// can display it later
		mNode1 = mNode2;

		// now i would expect mNode 2 to have been rotated 90 deg around mNode, which is the red node
		mNode2.orbit(90, 0, 100, mNode);


	};
	void draw() {
		mCam1.begin();

		ofSetColor(ofColor::white);

		ofDrawGrid(150, 10, true, false, true, false);

		mSphere.drawWireframe();

		ofSetColor(ofColor::red);
		mNode.draw();

		ofSetColor(ofColor::green);
		mNode1.draw();

		ofSetColor(ofColor::blue);
		mNode2.draw();

		mCam1.end();

	};

	void keyPressed(int key) {
		mOrb ^= true;
	};
	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) {};

};

//========================================================================
int main() {

	ofGLFWWindowSettings settings;
	settings.setGLVersion(3, 3);
	ofCreateWindow(settings);

	// this kicks off the running of my app
	// can be OF_WINDOW or OF_FULLSCREEN
	// pass in width and height too:
	ofRunApp(new ofApp());

}