gblottery.js
12.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
/**
* Created by kkb on 15/8/31.
*/
;(function(){
//定义画笔方法
function ScratchCanvas(canvasid,option) {
var $canvas = $('#'+canvasid),
$canvas_container = $('.lottery-container'),
context = $canvas[0].getContext('2d'),
_canvasoffset = $canvas.offset(),
_width = $canvas_container.width(),
_height = $canvas_container.height(),
_index = '',
_option = {
pensize: 20 ,//画笔直径,
img: 'transparent'
};
_option = $.extend(_option,option);
this.$canvas = $canvas;
this.init = function(){
var pattern = 'transparent',
img = _option.img;
_index = '';
if(img){
try{
pattern = context.createPattern(img,'no-repeat');
}catch(e){
throw e;
}
}
context.fillStyle = pattern;
context.fillRect(0,0,_width,_height);
context.globalCompositeOperation = 'destination-out';
},
this.setindex = function(index){
_index = index;
},
this.getindex = function(){
return _index;
},
this.setbackground = function(url){
$canvas.css({
'background-image':'url('+url+')',
'background-repeat':'no-repeat'
});
},
this.width = function(){
return _width;
},
this.height = function(){
return _height;
},
this.getarea = function(){
var imgdata = context.getImageData(0,0,_width,_height).data,
restarea = 0,
i,
len;
for(i = 0 , len = imgdata.length ; i < len ; i += 4){
if(imgdata[i] && imgdata[i+1] && imgdata[i+2] && imgdata[i+3]){
restarea ++;
}
}
return restarea;
},
this.getpoint = function(pageX,pageY){
return {
x: pageX - _canvasoffset.left,
y: pageY - _canvasoffset.top
}
},
this.fillarc = function(point){
var x = point.x,
y = point.y,
pensize = option.pensize;
context.beginPath();
context.moveTo(x,y)
context.arc(x,y,pensize,0,2 * Math.PI,true);
context.fill();
},
this.clear = function(){
context.clearRect(0,0,_width,_height);
};
}
//定义刮刮卡
function ScratchCard(canvas,option){
var _default = {
rate: 0.8, //设置摸出80%触发事件
fn: function(originalarr){ //默认随机算法
if(!originalarr || originalarr.length <= 0){
return;
}
var sumtotal = 0,
length = originalarr.length,
temparr = [],
temprate = 0,
i = 0,
nextindex;
for(; i < length ;i ++){
sumtotal += originalarr[i];
}
for(i = 0 ; i < length ; i ++){
temprate += originalarr[i];
temparr.push((temprate/sumtotal));
}
nextindex = Math.random();
temparr.push(nextindex);
temparr.sort();
return temparr.indexOf(nextindex);
},
gifts: []
}; //默认参数
this.mouse_down = false;
this.canvas = canvas;
this.option = $.extend(_default,option);
this.startPoint = {};
}
//定义刮刮卡的事件
ScratchCard.prototype = {
constructor : ScratchCard,
init: function(){
var _this = this,
_gifts = _this.option.gifts,
_originalprobability = [],
i,
len,
_index,
_imgsrc = global_contextPath + '/',
_img = new Image();
if(_gifts.length > 0){
for(i = 0 , len = _gifts.length ; i < len ; i ++){
_originalprobability.push(_gifts[i].probability);
}
}
_index = _this.option.fn(_originalprobability);//随机抽奖
_imgsrc += _gifts[_index].imgname;
_img.src = _imgsrc; //浏览器去加载
$(_img).on('load',function(){
_this.canvas.setbackground(_imgsrc);
_this.canvas.init();
_this.canvas.setindex(_index);
_this.canvas.$canvas.on('mousedown',function(event){
_this.mouseDown(event);
});
_this.canvas.$canvas.on('touchstart',function(event){
_this.mouseDown(event);
});
_this.canvas.$canvas.on('mouseup',function(event){
_this.mouseUp(event);
});
_this.canvas.$canvas.on('mouseout',function(event){
_this.mouseUp(event);
});
_this.canvas.$canvas.on('touchend',function(event){
_this.mouseUp(event);
});
_this.canvas.$canvas.on('mousemove',function(event){
_this.mouseMove(event);
});
_this.canvas.$canvas.on('touchmove',function(event){
_this.mouseMove(event);
});
});
},
pageOffset: function(event){
return{
pageX: event.pageX? event.pageX : event.changedTouches[0].pageX,
pageY: event.pageY? event.pageY : event.changedTouches[0].pageY
}
},
mouseDown: function(event){
event.preventDefault();
var pageoffset = this.pageOffset(event);
this.mouse_down = true;
this.startPoint = this.canvas.getpoint(pageoffset.pageX,pageoffset.pageY);
},
mouseUp: function(event){
event.preventDefault();
this.mouse_down = false;
var restarea = this.canvas.getarea();
if(restarea < this.canvas.width() * this.canvas.height() * (1-this.option.rate) && $.isFunction(this.option.callback)){
var award = this.option.gifts[this.canvas.getindex()];
if(award){
this.option.callback(award);
}
this.canvas.setindex('');
}
},
mouseMove: function(event){
if(!this.mouse_down){
return;
}
//解决快速滑动的断点问题
var p = this.canvas.getpoint(this.pageOffset(event).pageX,this.pageOffset(event).pageY),
k;
if (p.x > this.startPoint.x)
{
k = (p.y - this.startPoint.y) / (p.x - this.startPoint.x);
for (var i = this.startPoint.x; i < p.x; i += 5)
{
this.canvas.fillarc({x: i, y: (this.startPoint.y + (i - this.startPoint.x) * k)});
}
} else
{
k = (p.y - this.startPoint.y) / (p.x - this.startPoint.x);
for (var i = this.startPoint.x; i > p.x; i -= 5)
{
this.canvas.fillarc({x: i, y: (this.startPoint.y + ( i - this.startPoint.x ) * k)});
}
}
this.startPoint = p;
}
};
(function(){
var uid = global_onlineuser.uid,
isCheckedIn = false,
$lottery_container = $('.lottery-container');
if(uid > 0 && $lottery_container.length > 0){
identityService.findUserLotteryByUid({
callback: function(gbdata){
//页面初始化
$('.lottery-container').show();
var scratch_canvas = new ScratchCanvas('lottery-canvas',{
pensize: 68,
img: $('.lottery-container img')[0]
}),
scratch_card = new ScratchCard(scratch_canvas,{
gifts:[{
name: 'coin',
probability: 0.20,
imgname: 'networks/themes/img/money.png'
},{
name: '',
probability: 0.80,
imgname: 'networks/themes/img/nothing.png'
}],
rate: 0.23,
callback: function(award){
//console.log('获得奖品'+award.name);
var uid,
coin = 0,
range = ['1','5'];
if(award.name == 'coin'){
coin = Math.floor(Math.random()*(parseInt(range[1])-parseInt(range[0]) + 1) + parseInt(range[0]));
$.msg({
buttons:[
{
'知道了': $.noop
}
],
msg:'运气不错，获得'+coin+'个金币'
});
}else{
coin = 0;
$.msg({
buttons:[
{
'好的': $.noop
}
],
msg:'运气不佳，明日再来'
});
}
identityService.saveLastLotteryDateByUid(coin,{
callback: function(gbdata){}
});
}
});
if(gbdata){
scratch_card.init();
}else{
isCheckedIn = true;
}
$('.lottery-container').hide();
!isCheckedIn?
$('.lottery-container').show().addClass('show-canvas swing3d'):
'';
}
});
}
//点击签到
$('.check-in-btn').click(function(){
if(uid > 0){
if(!isCheckedIn){
if($('.lottery-container').is(':visible')){
return;
}
$('.lottery-container').show().addClass('show-canvas swing3d');
}else{
$.msg({
buttons:[{
'好的': $.noop
}],
msg: '今天已经签过了，明天继续'
});
}
}else{
$.msg({
buttons:[
{
'登录':function(){
window.location.href = 'http://www.gbtags.com/gb/syslogin.htm';
}
}
],
msg: '登录后才能签到'
});
}
});
})();
})();
//最近一周的中奖用户~~
$(document).ready(function() {
var thistemplate = $("#gb-getlotteryusers-tmpl");
if(thistemplate.length){
identityService.findLatestGetLotteryUser({
callback:function(gbdata){
var template = Handlebars.compile(thistemplate.html()),
userlist = template(gbdata);
$('#lotterywithinweekusers').append(userlist);
}
});
}
});