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| <html>
<head>
<script type="text/javascript" language="JavaScript">
// Variables
var ZONE_JEU_WIDTH = 400,
ZONE_JEU_HEIGHT = 300,
context,
tabBoule = new Array(200),
tabSphere = new Array(200),
NbBoule = 0,
NbSphere = 0,
SphereEnvoyee = 0,
NbBouleLancement = 200;
NbPoint = 0;
// Fonctions
window.onload = init;
function init() {
// On récupère l'objet canvas
var elem = document.getElementById('canvasElem');
// On récupère le contexte 2D
context = elem.getContext('2d');
if (!context) return;
// Initialisations des variables
ZONE_JEU_WIDTH = elem.width;
ZONE_JEU_HEIGHT = elem.height;
// Gestion des évènements
//window.document.onkeydown = checkDepla;
elem.addEventListener('click',event_click,true);
//window.document.mousedown = event_click;
//On initialise les boules
for (var i=0;i<NbBouleLancement;i++) {
tabBoule[i] = new Boule(ZONE_JEU_HEIGHT,ZONE_JEU_WIDTH,context);
NbBoule += 1;
}
// Boucle de rafraichissement du contexte 2D
boucleJeu = setInterval(refreshGame,40);
}
//Boucle principale
function refreshGame() {
clearContexte(context,0,ZONE_JEU_WIDTH,0,ZONE_JEU_HEIGHT);
for (var i=0;i<NbSphere;i++) {
if (tabSphere[i] != null) {
if (tabSphere[i].taille > 0 || tabSphere[i].time < tabSphere[i].timetotal) {
tabSphere[i].Actualise();
tabSphere[i].affiche();
}
else {
tabSphere.splice(i,1);
NbSphere += -1;
i += -1;
}
}
}
for (var i=0;i<NbBoule;i++) {
if (tabBoule[i] != null) {
tabBoule[i].newPos();
tabBoule[i].affiche();
if (tabBoule[i].CheckSphere(tabSphere,NbSphere) == 1) {
tabSphere[NbSphere] = new Sphere(tabBoule[i].posx,tabBoule[i].posy,tabBoule[i].color,tabBoule[i].NbPoint * 2,context);
NbSphere += 1;
//Ajout des points
NbPoint += tabBoule[i].NbPoint;
//On surpprime la boule
//tabBoule[i] = null;
tabBoule.splice(i,1);
NbBoule += -1;
i += -1;
}
}
}
if (SphereEnvoyee && NbSphere == 0) { //&& NbBoule != NbBouleLancement
alert('You win Nb point :'+NbPoint);
SphereEnvoyee = 0;
}
document.getElementById('debug').innerHTML = 'Boules restantes :'+NbBoule+' ; Nombre de points : '+NbPoint + ' ; Nb Sphere : '+NbSphere;
}
function RandomColor() {
return '#'+Math.floor(Math.random()*16777215).toString(16);
}
//function supprimer le context
function clearContexte(ctx,startwidth,ctxwidth,startheight,ctxheight) {ctx.clearRect(startwidth, startheight, ctxwidth, ctxheight);}
//Evenement click souris
function event_click(e){
if (!SphereEnvoyee) {
// captures the mouse position
posx = 0; posy = 0;
if (!e){var e = window.event;}
if (e.pageX || e.pageY){
posx = e.pageX;
posy = e.pageY;
}
else if (e.clientX || e.clientY){
posx = e.clientX;
posy = e.clientY;
}
tabSphere[0] = new Sphere(posx,posy,RandomColor(),5,context);
NbSphere += 1;
SphereEnvoyee = 1;
}
//alert('X mouse is: '+posx+' Y mouse is: '+posy);
}
function toRad(angle) {
return ((2 * Math.PI) / 360) * angle;
}
// Constructeur
function Boule(Zone_H,Zone_W,ctx) {
//calcul de l'angle
var anglemax = 60;
var quartier = 90 * Math.floor(Math.random() * 4 + 1);
var deg_angle = (Math.random() * anglemax) + ((90 - anglemax) / 2);
this.ang = toRad(deg_angle + quartier);
//variables
this.context = ctx;
this.posx = Math.round(Math.random() * Zone_W);
this.posy = Math.round(Math.random() * Zone_H);
this.vitesse = Math.round(Math.random() * 4 + 3);
this.taille = Math.round(Math.random() * 4 + 3);
this.Zone_H = Zone_H;
this.Zone_W = Zone_W;
this.color = RandomColor();
this.NbPoint = 0;
}
// Fonctions de la classe Boule
Boule.prototype = {
affiche : function() {
this.context.fillStyle = this.color;
this.context.beginPath();
this.context.arc(this.posx,this.posy,this.taille,0,Math.PI*2,true);
this.context.fill();
},
newPos : function() {
var preposX = Math.round(this.posx + this.vitesse * Math.cos(this.ang));
var preposY = Math.round(this.posy + this.vitesse * Math.sin(this.ang));
if (preposX > this.Zone_W || preposX < 0) this.ang = -1 * (this.ang - Math.PI);
if (preposY > this.Zone_H || preposY < 0) this.ang = -1 * this.ang;
this.posx += Math.round(this.vitesse * Math.cos(this.ang));
this.posy += Math.round(this.vitesse * Math.sin(this.ang));
},
CheckSphere : function(tabSphere,NbSphere) {
var bool = 0;
var posBx = this.posx;
var posBy = this.posy;
for (var i=0;i<NbSphere;i++) {
if (tabSphere[i] != null) {
var posSx = tabSphere[i].posx;
var posSy = tabSphere[i].posy;
var dist = Math.sqrt(Math.pow(posSx - posBx,2) + Math.pow(posSy - posBy,2));
if (dist <= tabSphere[i].taille + this.taille) {
bool = 1;
this.NbPoint += tabSphere[i].NbPoint;
}
}
}
return bool;
}
};
//Objet sphere
function Sphere(posX,posY,color,NbPoint,ctx) {
this.context = ctx;
this.posx = posX;
this.posy = posY;
this.taille = 1;
this.time = 0;
this.timetotal = 180;
this.color = color;
this.NbPoint = NbPoint;
this.timeText = 90;
}
Sphere.prototype = {
affiche : function() {
this.context.fillStyle = this.color;
this.context.beginPath();
this.context.arc(this.posx,this.posy,this.taille,0,Math.PI*2,true);
this.context.fill();
if (this.time < this.timeText && this.NbPoint > 5) {
this.context.fillStyle = "#000000";
this.context.font = 10 + "pt Arial";
this.context.fillText('+ '+this.NbPoint / 2, this.posx, this.posy + Math.floor((this.timeText / 2) / this.time) );
}
},
Actualise : function() {
if (this.time < 30) this.taille += 1;
else if (this.time > 150) this.taille += -1;
else if (this.timetotal > 180) this.taille = 0;
this.time += 1;
}
};
</script>
</head>
<body>
<canvas id="canvasElem" width="1000" height="800"></canvas>
<br />
<div id="debug"></div>
</body>
</html> |
25/05/2011, 15h20
Mathieu 
graphiques et JS
00
