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| function inherit(klass,parent){
function F(){}
F.prototype = parent.prototype;
klass.prototype = new F();
klass.prototype.constructor = klass;
return klass;
}
function getRandInt(min, max) {
return (Math.random() * (max - min) + min) >> 0;
}
var family = [];
function Whale(options){
var self = this;
(function(options) {
self.option = {
size : [240, 120],
pos : [0, 0],
speed : [6, 2],
spritX : [10, -3360],
spritY : 0
};
extendCopy(options || {}, self.options);
})();
this.gender = 'male'
this.init();
}
Whale.prototype = {
init : function(){
this.create();
this.play();
this.swim();
family.push(this);
},
create : function(){
var that = this;
var whaleBox = document.createElement("DIV");
whaleBox.className = "whale";
whaleBox.style.width = this.option.size[0] + "px";
whaleBox.style.height = this.option.size[1] + "px";
document.body.appendChild(whaleBox);
events.addEvent(whaleBox, "mousedown", function(){
var e = arguments[0] || window.event;
that._drag(e);
});
this.whaleBox = whaleBox;
return this;
},
_swimTimer : null,
swim : function(){
var that = this,
pos = this.option.pos,
speed = this.option.speed,
step = [Math.abs(this.option.speed[0]), Math.abs(this.option.speed[1])],
dir = [speed[0]/step[0], speed[1]/step[1]],
size = this.option.size;
var moveX = 0,
moveY = 0;
this._swimTimer = setInterval(function(){
moveX = dir[0] * getRandInt(1,step[0]);
moveY = dir[1] * getRandInt(1,step[1]);
if(pos[0] + moveX > Whale.windowSize[0] - size[0] || pos[0] + moveX < 0 ){
//边境时候掉头
moveX = 0;
speed[0] = - speed[0];
dir[0] = - dir[0];
that.option.spritY += dir[0] * size[1];
that.play();
}
if(pos[1] + moveX > Whale.windowSize[1] - size[1] || pos[1] + moveY < 0 ){
moveY = 0;
speed[1] = - speed[1];
dir[1] = - dir[1];
}
pos[0] += moveX;
pos[1] += moveY;
that.whaleBox.style.left = pos[0] + "px";
that.whaleBox.style.top = pos[1] + "px";
},200);
},
hook : function(){
clearInterval(this._swimTimer);
},
_playTimer : null,
play : function(){
var that = this,
s = Math.abs(this.option.speed[0]),
spritX = this.option.spritX,
x = spritX[0], //sprite开始位置
y = this.option.spritY;
clearInterval(this._playTimer);
this._playTimer = setInterval(function(){
x = (x <= spritX[1]) ? spritX[0] : x;
that.whaleBox.style.cssText += "background-position:"+x+"px "+ y +"px;";
x -= that.option.size[0];
},1000/s/1);
},
_drag : function(e){
var that = this;
var whaleBox = that.whaleBox;
var sX = whaleBox.offsetLeft,
sY = whaleBox.offsetTop,
dx = e.clientX,
dy = e.clientY;
that.hook();
whaleBox.style.zIndex = Whale.zIndex++;
events.addEvent(document, 'mousemove', dragHandle);
events.addEvent(document, 'mouseup', cancelDragHandle);
var largeL = Whale.windowSize[0] - this.option.size[0],
largeT = Whale.windowSize[1] - this.option.size[1];
function dragHandle() {
var e = arguments[0] || window.event;
var oX = sX + (e.clientX - dx),
oY = sY + (e.clientY - dy);
if(oX > largeL || oX < 0){
oX = (oX < 0) ? 0 : largeL
}
if(oY > largeT || oY < 0){
oY = (oY < 0) ? 0 : largeT
}
that.option.pos[0] = oX;
that.option.pos[1] = oY;
whaleBox.style.left = oX + "px";
whaleBox.style.top = oY + "px";
};
function cancelDragHandle() {
events.removeEvent(document, 'mousemove', dragHandle);
events.removeEvent(document, 'mouseup', cancelDragHandle);
that.swim();
}
}
}
Whale.zIndex = 1000;
Whale.windowSize = [document.documentElement.offsetWidth, Math.max(document.documentElement.clientHeight, document.body.offsetHeight)];
Whale.mating = function(){
for(var i= 0 ; i< family.length; i++){
if(family[i].gender !== "male") continue;
for(var j= 0; j< family.length; j++){
if(family[j].gender !== "female") continue;
if(Math.abs(family[i].option.pos[0] - family[j].option.pos[0]) < 10 && Math.abs(family[i].option.pos[1] - family[j].option.pos[1]) < 10 && !family[j].option.gestation){
(function(j){
family[j].option.gestation = true;
setTimeout(function(){
family[j].option.gestation = false;
},5 * 60 * 1000);
new WhaleBaby({pos:[family[j].option.pos[0] + 80, family[j].option.pos[1] + 30]});
})(j);
}
}
}
}
function WhaleLady(options){
var self = this;
(function(options) {
self.option = {
size : [210, 100],
pos : [80, 200],
speed : [4, -2],
spritX : [10, -2940],
spritY : -300
};
extendCopy(options || {}, self.options);
})();
this.gender = "female";
this.gestation = false;
this.init();
}
function WhaleBaby(options){
var self = this;
(function(options) {
self.option = {
size : [120, 60],
pos : [0, 100],
speed : [7, -3],
spritX : [2, -1650],
spritY : -600
};
extendCopy(options || {}, self.option);
})(options);
this.init();
}
inherit(WhaleLady, Whale);
inherit(WhaleBaby, WhaleLady);
var bb = new WhaleLady();
var aa = new Whale();
setInterval(Whale.mating,1000);
|
Theme Tranquility
