Make A Triangle

#include "testApp.h"
#include "ofxBox2d.h"

ofxBox2d box2d;
vector <ofxBox2dPolygon> triangles;

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

    ofSetFrameRate(30);
    ofBackground(255, 0, 255);
    
    box2d.init();
    box2d.setGravity(0, 20);
    box2d.createBounds();

}

//--------------------------------------------------------------
void testApp::update(){
    box2d.update();
}

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

    for (int i=0; i<triangles.size(); i++) {
        ofPolyline poly(triangles[i].getVertices());
        poly.close();
        poly.draw();
    }
}

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

}

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

    ofxBox2dPolygon tri;
    tri.addTriangle(ofPoint(x-10, y), ofPoint(x, y-10), ofPoint(x+10, y));
    tri.setAsEdge(false);
    tri.setPhysics(1.0, 0.7, 1.0);
    tri.create(box2d.getWorld());
    
    triangles.push_back(tri);
}

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

}