Update WeightedRandomize() to support index arrays

halgorithm · web-flow · commit e128733f02ad · 2018-01-09T22:05:34.000-08:00
diff --git a/src/gameobjects/tilemap/components/WeightedRandomize.js b/src/gameobjects/tilemap/components/WeightedRandomize.js
@@ -48,8 +48,10 @@ var WeightedRandomize = function (tileX, tileY, width, height, weightedIndexes,
             sum += weightedIndexes[j].weight;
             if (rand <= sum)
             {
-                randomIndex = weightedIndexes[j].index;
-                break;
+                var chosen = weightedIndexes[j].index
+                randomIndex = Array.isArray(chosen)
+                    ? chosen[Math.floor(Math.random() * chosen.length)]
+                    : chosen
             }
         }
 

Original file line number	Diff line number	Diff line change
`@@ -48,8 +48,10 @@ var WeightedRandomize = function (tileX, tileY, width, height, weightedIndexes,`
`48`	`48`	`sum += weightedIndexes[j].weight;`
`49`	`49`	`if (rand <= sum)`
`50`	`50`	`{`
`51`		`- randomIndex = weightedIndexes[j].index;`
`52`		`- break;`
	`51`	`+ var chosen = weightedIndexes[j].index`
	`52`	`+ randomIndex = Array.isArray(chosen)`
	`53`	`+ ? chosen[Math.floor(Math.random() * chosen.length)]`
	`54`	`+ : chosen`
`53`	`55`	`}`
`54`	`56`	`}`
`55`	`57`