use bounding boxes to optimize collision detection

src/level.js

@@ -42,7 +42,7 @@ export default class Map {
     //   new Vector2(3234, 1378),
     // ],
 
-    // top-left wall
+    // top-left wall (bottom part)
     [
       new Vector2(0, 10000),
       new Vector2(0, 820),
@@ -69,6 +69,13 @@ export default class Map {
       new Vector2(660, 8968),
       new Vector2(705, 9049),
       new Vector2(771, 9127),
+      new Vector2(760, 9104),
+    ],
+
+    // top-left wall (top part)
+    [
+      new Vector2(0, 10000),
+      new Vector2(760, 9104),
       new Vector2(849, 9193),
       new Vector2(930, 9220),
       new Vector2(1008, 9238),
@@ -94,8 +101,9 @@ export default class Map {
       new Vector2(9186, 10000),
     ],
 
-    // bottom-right wall
+    // bottom-right wall (right part)
     [
+      new Vector2(10000, 0),
       new Vector2(10000, 9127),
       new Vector2(9678, 9004),
       new Vector2(9684, 7003),
@@ -122,6 +130,13 @@ export default class Map {
       new Vector2(9357, 1093),
       new Vector2(9324, 1006),
       new Vector2(9288, 943),
+      new Vector2(9268, 904),
+    ],
+
+    // bottom-right wall (bottom part)
+    [
+      new Vector2(10000, 0),
+      new Vector2(9268, 904),
       new Vector2(9246, 883),
       new Vector2(9186, 835),
       new Vector2(9105, 796),