新增raycast射线

2020-07-31 17:17:44 +08:00
parent 514572f291
commit 40fe7a57db
13 changed files with 1182 additions and 813 deletions
--- a/source/src/Math/Vector2.ts
+++ b/source/src/Math/Vector2.ts
@@ -211,6 +211,7 @@ module es {
            let val = 1 / Math.sqrt((this.x * this.x) + (this.y * this.y));
            this.x *= val;
            this.y *= val;
+            return this;
        }

        /** 返回它的长度 */