射线检测完善

2020-08-03 14:45:57 +08:00
parent a4fe9f5798
commit 8e3bcc1257
14 changed files with 814 additions and 53 deletions
--- a/source/src/Math/Vector2.ts
+++ b/source/src/Math/Vector2.ts
@@ -219,6 +219,13 @@ module es {
            return Math.sqrt((this.x * this.x) + (this.y * this.y));
        }

+        /**
+         * 返回其长度的平方
+         */
+        public lengthSquared(): number {
+            return (this.x * this.x) + (this.y * this.y);
+        }
+
        /** 对x和y值四舍五入 */
        public round(): Vector2 {
            return new Vector2(Math.round(this.x), Math.round(this.y));