Port demos with remade art assets to Godot 4 (#922)

This re-ports the following demos to Godot 4 following their latest `3.x` versions:

- 2D Navigation with AStarGrid2D
- 2D JRPG Demo
- 2D Isometric Game
- 2D Platformer

Some tweaks have also been made in the process, such as split screen players
having different colors in the 2D Platformer demo.

Co-authored-by: Nonparoxysmic <[email protected]>

Author: Calinou

2d/isometric/README.md

@@ -7,7 +7,7 @@ as well as be occluded when standing in front or behind them.
 
 Language: GDScript
 
-Renderer: GLES 2
+Renderer: Compatibility
 
 Check out this demo on the asset library: https://godotengine.org/asset-library/asset/112
 
@@ -21,6 +21,10 @@ and [`CollisionPolygon2D`](https://docs.godotengine.org/en/latest/classes/class_
 at their base. The player also has a collider at its base,
 which makes the player collide with the level.
 
+2D lighting effects are achieved using a mixture of PointLight2D nodes (which provide real-time shadows)
+and pre-placed Polygon2Ds with sprites. To provide additional ambient shading, the goblin also has a blob
+shadow below its feet (a Sprite2D with a texture).
+
 ## Screenshots
 
-![Screenshot](screenshots/isometric.png)
+![Screenshot](screenshots/isometric.webp)

2d/isometric/decorations/banner.png

@@ -2,16 +2,16 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://b4n7s65t0qoep"
-path="res://.godot/imported/cloud_1.webp-d4440f8a56714fd63d83c7074d20ace3.ctex"
+uid="uid://bycat883fu7q2"
+path="res://.godot/imported/banner.png-45264389ab2131df9b78c5ec3b246773.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://level/cloud_1.webp"
-dest_files=["res://.godot/imported/cloud_1.webp-d4440f8a56714fd63d83c7074d20ace3.ctex"]
+source_file="res://decorations/banner.png"
+dest_files=["res://.godot/imported/banner.png-45264389ab2131df9b78c5ec3b246773.ctex"]
 
 [params]
 

2d/platformer/level/cloud_1.webp.import renamed to 2d/isometric/decorations/banner.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dpxv7d5d7hm33"
+path="res://.godot/imported/bone_pile_1.png-72c582c4f31012bb8009120719983b0c.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://decorations/bone_pile_1.png"
+dest_files=["res://.godot/imported/bone_pile_1.png-72c582c4f31012bb8009120719983b0c.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

2d/isometric/decorations/bone_pile_1.png

@@ -0,0 +1,20 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://decorations/bone_pile_1.png" type="Texture2D" id=1]
+
+[sub_resource type="CapsuleShape2D" id=1]
+radius = 18.0
+height = 28.0
+
+[node name="bone_pile" type="Node2D"]
+
+[node name="StaticBody2D" type="StaticBody2D" parent="."]
+
+[node name="Sprite2D" type="Sprite2D" parent="StaticBody2D"]
+position = Vector2( 0, -14 )
+texture = ExtResource( 1 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="StaticBody2D"]
+position = Vector2( 0, -15 )
+rotation = 1.5708
+shape = SubResource( 1 )

2d/isometric/decorations/bone_pile_1.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://wxpdcei7yeuk"
+path="res://.godot/imported/bone_pile_2.png-f448133711e0ebea56f9e49e956ac902.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://decorations/bone_pile_2.png"
+dest_files=["res://.godot/imported/bone_pile_2.png-f448133711e0ebea56f9e49e956ac902.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

2d/isometric/decorations/bone_pile_1.tscn

@@ -0,0 +1,20 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://decorations/bone_pile_2.png" type="Texture2D" id=1]
+
+[sub_resource type="CapsuleShape2D" id=1]
+radius = 13.0
+height = 26.0001
+
+[node name="bone_pile" type="Node2D"]
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+position = Vector2( 0, -13 )
+texture = ExtResource( 1 )
+
+[node name="StaticBody2D" type="StaticBody2D" parent="."]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="StaticBody2D"]
+position = Vector2( 0, -13 )
+rotation = 1.5708
+shape = SubResource( 1 )