Forum_Deutsches_Museum_Interaktiv/src/ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	//Initialize 8 empty attractrs
	for (int i = 0; i < 8; i++)
	{
		attractors.push_back(new Attractor);
	}

	//OSC reciever port setup
	receiver.setup(PORT);

	//Black background
	ofSetBackgroundColor(0, 0, 0);

	ofSetFrameRate(60);

	birthCount = 0;

	//attractors.at(0)->setup(200, 200);
}

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

	// *** OSC RECEIVER  ***
	while (receiver.hasWaitingMessages()) {

		ofxOscMessage contourCentroids;
		receiver.getNextMessage(&contourCentroids);
		oscMsg = ofToString(contourCentroids);

		//Get active ammount of attractors (nBlobs) and their x & y coordinates
		//Exp. OSC Message: " /centroidsOfBlob ammount xValue, yValue"
		if (contourCentroids.getAddress() == "/centroidsOfBlob") {
			nBlobs = contourCentroids.getArgAsInt(0);
			for (int i = 1; i <= nBlobs; i++) {
				xOfCentroid = contourCentroids.getArgAsFloat(i * 2 - 1) * ofGetWindowWidth();
				yOfCentroid = contourCentroids.getArgAsFloat(i * 2) * ofGetWindowHeight();

				attractors.at(i - 1)->setup(xOfCentroid, yOfCentroid);
			}
		}
		//Delete all Attractors on command
		if (contourCentroids.getAddress() == "/checkin") {
			for (int i = 0; i < 8; i++) {
				attractors.at(i)->setup(0, 0);
			}
		}
	}

	// *** PARTICLE EMITTER ***

	//Capture time based on FrameTime
	double deltaT = ofGetLastFrameTime();
	birthCount += deltaT;

	//Birth control for new particles
	if (birthCount > 0.001) {
		for (int i = 0;i < 4;i++) {
			system.push_back(new thParticle);
			system.back()->setup(ofVec2f(ofGetWidth()*.5, ofGetHeight()*.5));
		}
		birthCount = 0;
	}


	for (int p = 0; p < system.size();)
	{
		//Upate particle system /w all active attractors
		system.at(p)->update(deltaT, &attractors);

		//Delete particles, that reached max Age
		if (system.at(p)->getAgeNorm() > 4) {
			delete system.at(p);
			system.erase(system.begin() + p);
		}
		else {
			p++;
		}
	}
}



//--------------------------------------------------------------
void ofApp::draw() {

	//Draw particle system
	for (int p = 0; p < system.size(); p++) {
		system.at(p)->draw();
	}


	//Capture time based on FrameTime
	double deltaT = ofGetLastFrameTime();
	time += deltaT;

	// Delete inactive attractors after 4 seconds based on Frametime
	if (time > 2) {
		for (int i = 0; i < 8; i++) {
			//attractors.at(i)->setup(0, 0);
			time = 0;
		}
	}

	// *** DEBUG INFO ***

	//All 8 Attractors with x | y coordinates 
	for (int i = 0; i < 8; i++) {

		//string x = ofToString(attractors.at(i)->getX());
		//string y = ofToString(attractors.at(i)->getY());

		//ofDrawBitmapString("x: " + x + " y: " + y, 100, 100 + i * 20);
	}
	//Recieved OSC messages
	//ofDrawBitmapString("OSC: " + ofToString(oscMsg),100, 275);
	//Elapsed time since last clear of attractors
	//ofDrawBitmapString("Time: " + ofToString(time),100, 300);
	//Current FPS
	//ofDrawBitmapString("FPS: " + ofToString(ofGetFrameRate()), 100, 325);
}

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

}

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

}

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

}

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

}

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

}