Improve 2D Shoot'em up starter

Author: 4ian

examples/starting-shootemup/README.md

@@ -1,5 +1,5 @@
-# Shoot 'em up
-
-A 2D side-scrolling shoot ’em up where the player can move around the screen while automatically firing bullets. Enemies regularly appear from the opposite side, advancing toward the player and shooting back.
-
-Support for keyboard and mobile controls.
+# Shoot 'em up
+
+A 2D side-scrolling shoot ’em up where the player can move around the screen while automatically firing bullets. Enemies regularly appear from the opposite side, advancing toward the player and shooting back.
+
+Support for keyboard and mobile controls.

examples/starting-shootemup/assets/Flat dark joystick border.png

@@ -1,7 +1,7 @@
 {
   "firstLayout": "",
   "gdVersion": {
-    "build": 240,
+    "build": 243,
     "major": 5,
     "minor": 5,
     "revision": 0
@@ -14,12 +14,12 @@
     "orientation": "landscape",
     "packageName": "com.example.gamename",
     "pixelsRounding": false,
-    "projectUuid": "a93b749c-8198-4bdf-bd81-54c59139aa49",
+    "projectUuid": "f4003c2a-db96-488e-b9e5-69f1ff936acd",
     "scaleMode": "linear",
     "sizeOnStartupMode": "",
     "templateSlug": "starting-top-down",
     "version": "1.0.0",
-    "name": "starting_shootemup",
+    "name": "starting-shootemup",
     "description": "",
     "author": "",
     "windowWidth": 1280,
@@ -194,7 +194,8 @@
         "gridAlpha": 0.8,
         "snap": false,
         "zoomFactor": 0.4950840073748919,
-        "windowMask": false
+        "windowMask": false,
+        "selectedLayer": ""
       },
       "objectsGroups": [],
       "variables": [],
@@ -868,6 +869,17 @@
                 "",
                 "\"EnemySpawn\""
               ]
+            },
+            {
+              "type": {
+                "value": "RotateTowardAngle"
+              },
+              "parameters": [
+                "Enemy",
+                "180",
+                "0",
+                ""
+              ]
             }
           ]
         },
@@ -937,7 +949,7 @@
                 "Enemy.CenterX()",
                 "Enemy.CenterY()",
                 "EnemyBullet",
-                "Enemy.Angle()-180",
+                "Enemy.Angle()",
                 "200",
                 "300"
               ]
@@ -7107,6 +7119,7 @@
             }
           ],
           "instances": [],
+          "editionSettings": {},
           "eventsFunctions": [
             {
               "fullName": "",