#include "ofApp.h"
#include "ofAppRunner.h"

//--------------------------------------------------------------
void ofApp::setup(){
    OFX_PROFILER_BEGIN_SESSION("test", "result.json");
    OFX_PROFILER_FUNCTION();

    ofBackgroundHex(0x57554c);
    //ofSetFrameRate(60);
    ofSetVerticalSync(true);


    // slow       = 1
    // faster     = 2
    // super fast = 3
    mode = 1;

}

//--------------------------------------------------------------
void ofApp::update(){
    OFX_PROFILER_FUNCTION();
    // add points all the time
    if(points.size() < 500000 || ofGetFrameRate() > 30){
        for(int i = 0; i < 300; i++){
            addPoint(ofGetWidth() / 2, ofGetHeight() / 2);
        }
    }

    // move all the points around
    for(unsigned int i = 0; i < points.size(); i++){

        speeds[i].y += 0.04; // some grav
        points[i] += speeds[i];
        speeds[i] *= 0.98;

        // move from the mouse
        glm::vec2 mouseVec = glm::vec2(ofGetMouseX(), ofGetMouseY()) - points[i];
        if(glm::length(mouseVec) < 100){
            mouseVec = glm::normalize(mouseVec);
            speeds[i] -= mouseVec;
        }

        // wrap the screenhttps://profiler.firefox.com/from-file/calltree/?v=4
        if(points[i].x > ofGetWidth()){
            points[i].x = 1;
        }
        if(points[i].x < 0){
            points[i].x = ofGetWidth() - 1;
        }
        if(points[i].y > ofGetHeight()){
            points[i].y = 1;
        }
        if(points[i].y < 0){
            points[i].y = ofGetHeight() - 1;
        }
    }

}

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

    // draw the points the slow way
    if(mode == 1){
        OFX_PROFILER_SCOPE("mode 1");
        #ifdef TARGET_OPENGLES
            ofSetColor(255);
            ofDrawBitmapString("OpenGL immediate mode not available in OpenGL ES. Press 2 or 3.", ofGetWidth() / 2.0f - 300, ofGetHeight() / 2.0f);
        #else
            ofSetColor(255);
            glBegin(GL_POINTS);
            for(unsigned int i = 0; i < points.size(); i++){
                glVertex2f(points[i].x, points[i].y);
            }
            glEnd();
        #endif
    }
    // a bit faster
    else if(mode == 2){
        OFX_PROFILER_SCOPE("mode 2");
        ofSetColor(255);

        glEnableClientState(GL_VERTEX_ARRAY);
        glVertexPointer(2, GL_FLOAT, 0, &points[0].x);
        glDrawArrays(GL_POINTS, 0, (int)points.size());
        glDisableClientState(GL_VERTEX_ARRAY);
    }
    // super fast (vbo)
    else if(mode == 3){
        OFX_PROFILER_SCOPE("mode 3");
        ofSetColor(255);
        vbo.setVertexData(&points[0], (int)points.size(), GL_DYNAMIC_DRAW);
        vbo.draw(GL_POINTS, 0, (int)points.size());
    }



    ofSetColor(0);
    ofDrawRectangle(0, 0, 250, 90);
    ofSetColor(255);
    ofDrawBitmapString("Mode " + ofToString(mode), 20, 20);
    ofDrawBitmapString("FPS " + ofToString(ofGetFrameRate(), 0), 20, 40);
    ofDrawBitmapString("Total Points " + ofToString((int)points.size()), 20, 60);

}

//--------------------------------------------------------------
void ofApp::exit(){
    OFX_PROFILER_END_SESSION();
}

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

    if(key == '1'){
        mode = 1;
    }
    if(key == '2'){
        mode = 2;
    }
    if(key == '3'){
        mode = 3;
    }


    // clear all the points
    if(key == 'c'){
        points.clear();
        speeds.clear();
    }

    // add crazy amount
    if(key == 'z'){
        for(int i = 0; i < 400000; i++){
            addPoint(ofRandomWidth(), ofRandomHeight());
        }
    }

}

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

}

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

}

//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){
    // add a bunch as you drag
    for(int i = 0; i < 400; i++){
        addPoint(x, y);
    }
}

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

}