diff --git a/2d/navigation_astar/Game.tscn b/2d/navigation_astar/Game.tscn
index 25c0f8ce..ba615010 100644
--- a/2d/navigation_astar/Game.tscn
+++ b/2d/navigation_astar/Game.tscn
@@ -5,39 +5,18 @@
 [ext_resource path="res://character.gd" type="Script" id=3]
 [ext_resource path="res://sprites/character.png" type="Texture" id=4]
 
-[node name="Game" type="Node" index="0"]
+[node name="Game" type="Node"]
 
-[node name="TileMap" type="TileMap" parent="." index="0"]
-
-mode = 0
+[node name="TileMap" type="TileMap" parent="."]
 tile_set = ExtResource( 1 )
-cell_size = Vector2( 64, 64 )
-cell_quadrant_size = 16
-cell_custom_transform = Transform2D( 1, 0, 0, 1, 0, 0 )
-cell_half_offset = 2
-cell_tile_origin = 0
-cell_y_sort = false
-cell_clip_uv = false
-collision_use_kinematic = false
-collision_friction = 1.0
-collision_bounce = 0.0
-collision_layer = 1
-collision_mask = 1
-occluder_light_mask = 1
 format = 1
 tile_data = PoolIntArray( 65537, 0, 0, 65541, 0, 0, 65545, 0, 0, 65550, 0, 0, 196614, 0, 0, 196615, 0, 0, 196616, 0, 0, 196617, 0, 0, 196618, 0, 0, 196619, 0, 0, 262145, 0, 0, 262146, 0, 0, 262147, 0, 0, 327683, 0, 0, 393219, 0, 0, 393220, 0, 0, 393221, 0, 0, 393222, 0, 0, 393226, 0, 0, 393227, 0, 0, 393228, 0, 0, 458761, 0, 0, 524290, 0, 0, 524291, 0, 0, 524292, 0, 0, 524293, 0, 0, 524294, 0, 0, 524295, 0, 0, 524296, 0, 0, 524297, 0, 0 )
 script = ExtResource( 2 )
-_sections_unfolded = [ "Cell" ]
-map_size = Vector2( 16, 16 )
-
-[node name="Character" type="Position2D" parent="." index="1"]
 
+[node name="Character" type="Position2D" parent="."]
 script = ExtResource( 3 )
-SPEED = 200.0
-
-[node name="Sprite" type="Sprite" parent="Character" index="0"]
 
+[node name="Sprite" type="Sprite" parent="Character"]
 position = Vector2( 7, 0 )
 texture = ExtResource( 4 )
 
-
diff --git a/2d/navigation_astar/character.gd b/2d/navigation_astar/character.gd
index 1dcd3f2c..94b7a4bf 100644
--- a/2d/navigation_astar/character.gd
+++ b/2d/navigation_astar/character.gd
@@ -12,14 +12,14 @@ var target_position = Vector2()
 var velocity = Vector2()
 
 func _ready():
-	_change_state(IDLE)
+	_change_state(STATES.IDLE)
 
 
 func _change_state(new_state):
-	if new_state == FOLLOW:
-		path = get_parent().get_node('TileMap').get_path(position, target_position)
+	if new_state == STATES.FOLLOW:
+		path = get_parent().get_node('TileMap')._get_path(position, target_position)
 		if not path or len(path) == 1:
-			_change_state(IDLE)
+			_change_state(STATES.IDLE)
 			return
 		# The index 0 is the starting cell
 		# we don't want the character to move back to it in this example
@@ -28,13 +28,13 @@ func _change_state(new_state):
 
 
 func _process(delta):
-	if not _state == FOLLOW:
+	if not _state == STATES.FOLLOW:
 		return
 	var arrived_to_next_point = move_to(target_point_world)
 	if arrived_to_next_point:
 		path.remove(0)
 		if len(path) == 0:
-			_change_state(IDLE)
+			_change_state(STATES.IDLE)
 			return
 		target_point_world = path[0]
 
@@ -57,4 +57,4 @@ func _input(event):
 			global_position = get_global_mouse_position()
 		else:
 			target_position = get_global_mouse_position()
-		_change_state(FOLLOW)
+		_change_state(STATES.FOLLOW)
diff --git a/2d/navigation_astar/default_env.tres b/2d/navigation_astar/default_env.tres
index ad86b722..970e2f27 100644
--- a/2d/navigation_astar/default_env.tres
+++ b/2d/navigation_astar/default_env.tres
@@ -2,100 +2,15 @@
 
 [sub_resource type="ProceduralSky" id=1]
 
-radiance_size = 4
 sky_top_color = Color( 0.0470588, 0.454902, 0.976471, 1 )
 sky_horizon_color = Color( 0.556863, 0.823529, 0.909804, 1 )
 sky_curve = 0.25
-sky_energy = 1.0
 ground_bottom_color = Color( 0.101961, 0.145098, 0.188235, 1 )
 ground_horizon_color = Color( 0.482353, 0.788235, 0.952941, 1 )
 ground_curve = 0.01
-ground_energy = 1.0
-sun_color = Color( 1, 1, 1, 1 )
-sun_latitude = 35.0
-sun_longitude = 0.0
-sun_angle_min = 1.0
-sun_angle_max = 100.0
-sun_curve = 0.05
-sun_energy = 16.0
-texture_size = 2
 
 [resource]
 
 background_mode = 2
 background_sky = SubResource( 1 )
-background_sky_custom_fov = 0.0
-background_color = Color( 0, 0, 0, 1 )
-background_energy = 1.0
-background_canvas_max_layer = 0
-ambient_light_color = Color( 0, 0, 0, 1 )
-ambient_light_energy = 1.0
-ambient_light_sky_contribution = 1.0
-fog_enabled = false
-fog_color = Color( 0.5, 0.6, 0.7, 1 )
-fog_sun_color = Color( 1, 0.9, 0.7, 1 )
-fog_sun_amount = 0.0
-fog_depth_enabled = true
-fog_depth_begin = 10.0
-fog_depth_curve = 1.0
-fog_transmit_enabled = false
-fog_transmit_curve = 1.0
-fog_height_enabled = false
-fog_height_min = 0.0
-fog_height_max = 100.0
-fog_height_curve = 1.0
-tonemap_mode = 0
-tonemap_exposure = 1.0
-tonemap_white = 1.0
-auto_exposure_enabled = false
-auto_exposure_scale = 0.4
-auto_exposure_min_luma = 0.05
-auto_exposure_max_luma = 8.0
-auto_exposure_speed = 0.5
-ss_reflections_enabled = false
-ss_reflections_max_steps = 64
-ss_reflections_fade_in = 0.15
-ss_reflections_fade_out = 2.0
-ss_reflections_depth_tolerance = 0.2
-ss_reflections_roughness = true
-ssao_enabled = false
-ssao_radius = 1.0
-ssao_intensity = 1.0
-ssao_radius2 = 0.0
-ssao_intensity2 = 1.0
-ssao_bias = 0.01
-ssao_light_affect = 0.0
-ssao_color = Color( 0, 0, 0, 1 )
-ssao_quality = 0
-ssao_blur = 3
-ssao_edge_sharpness = 4.0
-dof_blur_far_enabled = false
-dof_blur_far_distance = 10.0
-dof_blur_far_transition = 5.0
-dof_blur_far_amount = 0.1
-dof_blur_far_quality = 1
-dof_blur_near_enabled = false
-dof_blur_near_distance = 2.0
-dof_blur_near_transition = 1.0
-dof_blur_near_amount = 0.1
-dof_blur_near_quality = 1
-glow_enabled = false
-glow_levels/1 = false
-glow_levels/2 = false
-glow_levels/3 = true
-glow_levels/4 = false
-glow_levels/5 = true
-glow_levels/6 = false
-glow_levels/7 = false
-glow_intensity = 0.8
-glow_strength = 1.0
-glow_bloom = 0.0
-glow_blend_mode = 2
-glow_hdr_threshold = 1.0
-glow_hdr_scale = 2.0
-glow_bicubic_upscale = false
-adjustment_enabled = false
-adjustment_brightness = 1.0
-adjustment_contrast = 1.0
-adjustment_saturation = 1.0
 
diff --git a/2d/navigation_astar/icon.png.import b/2d/navigation_astar/icon.png.import
index e4c4a984..45ee6af7 100644
--- a/2d/navigation_astar/icon.png.import
+++ b/2d/navigation_astar/icon.png.import
@@ -7,16 +7,14 @@ path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
 [deps]
 
 source_file="res://icon.png"
-source_md5="0b0cb045ce690875fab066adeea76aba"
-
 dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
-dest_md5="58323f97585db7bd8d6e03320f9ebb33"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +24,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true
diff --git a/2d/navigation_astar/pathfind_astar.gd b/2d/navigation_astar/pathfind_astar.gd
index cbd58977..e207d551 100644
--- a/2d/navigation_astar/pathfind_astar.gd
+++ b/2d/navigation_astar/pathfind_astar.gd
@@ -111,7 +111,7 @@ func calculate_point_index(point):
 	return point.x + map_size.x * point.y
 
 
-func get_path(world_start, world_end):
+func _get_path(world_start, world_end):
 	self.path_start_position = world_to_map(world_start)
 	self.path_end_position = world_to_map(world_end)
 	_recalculate_path()
diff --git a/2d/navigation_astar/project.godot b/2d/navigation_astar/project.godot
index 14a2c95b..6f2a177d 100644
--- a/2d/navigation_astar/project.godot
+++ b/2d/navigation_astar/project.godot
@@ -6,7 +6,12 @@
 ;   [section] ; section goes between []
 ;   param=value ; assign values to parameters
 
-config_version=3
+config_version=4
+
+_global_script_classes=[  ]
+_global_script_class_icons={
+
+}
 
 [application]
 
@@ -16,8 +21,11 @@ config/icon="res://icon.png"
 
 [input]
 
-click=[ Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"button_mask":0,"position":Vector2( 0, 0 ),"global_position":Vector2( 0, 0 ),"factor":1.0,"button_index":1,"pressed":false,"doubleclick":false,"script":null)
+click={
+"deadzone": 0.5,
+"events": [ Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"button_mask":0,"position":Vector2( 0, 0 ),"global_position":Vector2( 0, 0 ),"factor":1.0,"button_index":1,"pressed":false,"doubleclick":false,"script":null)
  ]
+}
 
 [rendering]
 
diff --git a/2d/navigation_astar/sprites/character.png.import b/2d/navigation_astar/sprites/character.png.import
index 4fd7f02d..5ffee97d 100644
--- a/2d/navigation_astar/sprites/character.png.import
+++ b/2d/navigation_astar/sprites/character.png.import
@@ -7,16 +7,14 @@ path="res://.import/character.png-eb70ac48a5acf508c4b7740ea4ac4fae.stex"
 [deps]
 
 source_file="res://sprites/character.png"
-source_md5="8746d76344ac3bad60c33b1bc43e11fd"
-
 dest_files=[ "res://.import/character.png-eb70ac48a5acf508c4b7740ea4ac4fae.stex" ]
-dest_md5="e874204705e06ca4dc2c9b0a90db7e8a"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +24,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true
diff --git a/2d/navigation_astar/sprites/obstacle.png.import b/2d/navigation_astar/sprites/obstacle.png.import
index 030d8116..31e61eb2 100644
--- a/2d/navigation_astar/sprites/obstacle.png.import
+++ b/2d/navigation_astar/sprites/obstacle.png.import
@@ -7,16 +7,14 @@ path="res://.import/obstacle.png-0258c5f5ce65bfa0dd8610adeb784f54.stex"
 [deps]
 
 source_file="res://sprites/obstacle.png"
-source_md5="f741dc1724960a029cba51c962d988be"
-
 dest_files=[ "res://.import/obstacle.png-0258c5f5ce65bfa0dd8610adeb784f54.stex" ]
-dest_md5="432d869b849ac70d4f76935622b2e37b"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +24,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true
diff --git a/2d/navigation_astar/sprites/path_end.png.import b/2d/navigation_astar/sprites/path_end.png.import
index 81d2d571..4df45d91 100644
--- a/2d/navigation_astar/sprites/path_end.png.import
+++ b/2d/navigation_astar/sprites/path_end.png.import
@@ -7,16 +7,14 @@ path="res://.import/path_end.png-02b79e25892cd8d863bd44c3c5a1720e.stex"
 [deps]
 
 source_file="res://sprites/path_end.png"
-source_md5="be9537ddfec33fdc35a33d88cad94d38"
-
 dest_files=[ "res://.import/path_end.png-02b79e25892cd8d863bd44c3c5a1720e.stex" ]
-dest_md5="436b174ce46135e1d4d6b9b238889433"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +24,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true
diff --git a/2d/navigation_astar/sprites/path_start.png.import b/2d/navigation_astar/sprites/path_start.png.import
index 3c7e90fe..7459ba40 100644
--- a/2d/navigation_astar/sprites/path_start.png.import
+++ b/2d/navigation_astar/sprites/path_start.png.import
@@ -7,16 +7,14 @@ path="res://.import/path_start.png-475bd0b469629aa8779d506c5134e5c2.stex"
 [deps]
 
 source_file="res://sprites/path_start.png"
-source_md5="6b4a1211e21f4fab937c7b309d802a44"
-
 dest_files=[ "res://.import/path_start.png-475bd0b469629aa8779d506c5134e5c2.stex" ]
-dest_md5="5d90014ca7f70fa5f9494bd25fbe72d0"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +24,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true