/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.oHXlITQTOa-/rev.1318
 * 
 * authors: 
 *   Pétrole
 *   Bernard
 *   Antoine
 *   
 *   Well.
 *   Bernard
 *   Grallius
 *   Ginette
 *   
 *   isabelle H.
 *   
 *   Yohan Farouz
 *   si

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



int oriX=150; //centre du tronc en X
int oriY=500; //centre du tronc en Y
float g=9.8; //constante gravitationnelle
float k=1; //elasticite
float m=1.5;   //masse de l'oiseau
float l0=50; // longeur du ressort au repos
int birdX=oriX-20;
int birdY=oriY-20;
boolean released = false;
boolean bounce=false; // rebond
int birdX0=0; //coordonnee initiale du lache
int birdY0=0; //coordonnee initiale du lache
float t=0; //temps
float vSol=0;
float damping=0.5;
 //couleur du tronc
color  yellow= color(255, 255, 0);

//couleur de l'oiseau
color red= color(255, 0, 0);

//image de l'oiseau
PImage bird;


void setup (){
size (800, 600) ;
bird=loadImage("/static/uploaded_resources/p.2336/bird.png");
}

void draw()
{


    //fond d'écran
    background (52, 186, 231);
    
    fill(yellow);
    rect(oriX-10, oriY, 20, 100);
    
    if (released && birdY<=560)
    {
        birdX= birdX0;
        birdY= round ((1/2)*g*sq(t) -vSol*t+ birdY0);
        t=t+0.1;
    
    }
    if (released && birdY>560)
    {
        vSol=sqrt(damping*(560-birdY0)*2*g);
        birdX=birdX0;
        birdY0=560;
        birdY=birdY0;
        t=0;

        if(vSol<0.1)
        {
            vSol=0;
            released=false;
            birdX=oriX-20;
            birdY=oriY-20;
        }
    }
        
    image(bird, birdX, birdY, 40, 40);

}

void mouseReleased ()
{
    released=true;
    birdX0=mouseX-20; 
    birdY0=mouseY-20;
    vSol=0;
}
    
void mouseDragged()
{
     birdX=mouseX-20;
     birdY=mouseY-20;
}