v1.0.0-beta 源码正式开源

2026-06-12 13:19:31 +08:00 · 2022-12-06 15:08:29 +08:00
commit 636ae7b169
461 changed files with 116817 additions and 0 deletions
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+function choujiang(prizes) {
+    var prizeList = [] //按照权重分解后的奖品数组
+    prizes.map(function(item){
+        prizeList.push({
+            
+			...item
+        })
+        for(var i=0; i< item.gailv; i++) {
+            prizeList.push({
+               
+               ...item
+            })
+        }
+    });
+    prizeList = reset(prizeList);
+    // 范围随机数
+    function randomFrom(lowerValue, upperValue) {
+        return Math.floor(Math.random() * (upperValue - lowerValue + 1) + lowerValue);
+    };
+    // 随机打乱数组
+    function reset(arr) {
+        var eachArr = arr.concat([])
+        var lastArr = []
+        function deepEach(deepArr) {
+            if (deepArr.length) {
+                var randomIndex = randomFrom(0, eachArr.length - 1)
+                lastArr.push(eachArr[randomIndex])
+                eachArr.splice(randomIndex, 1)
+                deepEach(eachArr)
+            }
+        }
+        deepEach(eachArr)
+        return lastArr
+    }
+    this.getResult = function() {
+        var random = randomFrom(0, prizeList.length - 1);
+        return prizeList[random]
+    }
+}
+
+export default choujiang;