first commit

scripts/1px_border.gdshader

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+shader_type canvas_item;
+
+uniform vec4 border_color : hint_color = vec4(0.0, 0.0, 0.0, 1.0);
+uniform bool border_corners = false;
+
+bool is_border(sampler2D tex, vec2 uv, vec2 pixel_size) {
+	float check = texture(tex, uv + vec2(pixel_size.x, 0.0)).a;
+	check += texture(tex, uv + vec2(-pixel_size.x, 0.0)).a;
+	check += texture(tex, uv + vec2(0.0, pixel_size.y)).a;
+	check += texture(tex, uv + vec2(0.0, -pixel_size.y)).a;
+	
+	if (border_corners) {
+		check += texture(tex, uv + pixel_size).a;
+		check += texture(tex, uv - pixel_size).a;
+		check += texture(tex, uv + vec2(pixel_size.x, -pixel_size.y)).a;
+		check += texture(tex, uv + vec2(-pixel_size.x, pixel_size.y)).a;
+	}
+	
+	return check > 0.0;
+}
+
+void fragment() {
+	COLOR = texture(TEXTURE, UV);
+	
+	if (COLOR.a == 0.0 && is_border(TEXTURE, UV, TEXTURE_PIXEL_SIZE)) {
+		COLOR = border_color;
+	}
+}

scripts/delete_on_game_running.gd

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+extends Node
+
+func _ready():
+	queue_free()

scripts/recolor.tres

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+[gd_resource type="Shader" format=2]
+
+[resource]
+code = "// Recolor
+shader_type canvas_item;
+
+uniform sampler2D palette : hint_albedo;
+
+void fragment() {
+	vec4 color = texture(TEXTURE, UV);
+	vec4 result_color = texture(palette, color.rg );
+	result_color.a = color.a;
+	COLOR = result_color;
+}"

scripts/recolor_border.shader

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+shader_type canvas_item;
+
+uniform sampler2D palette : hint_albedo;
+uniform vec4 border_color : hint_color = vec4(0.0, 0.0, 0.0, 1.0);
+uniform bool border_corners = false;
+
+bool is_border(sampler2D tex, vec2 uv, vec2 pixel_size) {
+	float check = texture(tex, uv + vec2(pixel_size.x, 0.0)).a;
+	check += texture(tex, uv + vec2(-pixel_size.x, 0.0)).a;
+	check += texture(tex, uv + vec2(0.0, pixel_size.y)).a;
+	check += texture(tex, uv + vec2(0.0, -pixel_size.y)).a;
+	
+	if (border_corners) {
+		check += texture(tex, uv + pixel_size).a;
+		check += texture(tex, uv - pixel_size).a;
+		check += texture(tex, uv + vec2(pixel_size.x, -pixel_size.y)).a;
+		check += texture(tex, uv + vec2(-pixel_size.x, pixel_size.y)).a;
+	}
+	
+	return check > 0.0;
+}
+
+void fragment() {
+	vec4 color = texture(TEXTURE, UV);
+	
+	if (color.a == 0.0 && is_border(TEXTURE, UV, TEXTURE_PIXEL_SIZE)) {
+		COLOR = border_color;
+	} else {
+		COLOR = texture(palette, color.rg );
+		COLOR.a = color.a;
+	}
+}

scripts/scaling.gd

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+extends Control
+
+var multiple = 1
+onready var viewport = $ViewportContainer
+onready var border = $TextureRect
+#	SCALE MODE: INTEGER, FIT, FILL
+export var scale_mode = 0
+#	INTEGER SCALE SETTINGS
+export var overscale = 0
+onready var root = get_tree().root
+#	RESOLUTION
+onready var res = Game.resolution
+onready var half_res = Vector2(res.x/2,res.y/2)
+
+func _ready():
+	#SCREEN RESIZE SIGNAL
+	get_tree().connect("screen_resized", self, "_on_screen_resized")
+	root.set_attach_to_screen_rect(root.get_visible_rect())
+	_on_screen_resized()
+
+func _on_screen_resized():
+#	VARS
+	var window_size = OS.get_window_size()
+#	INTEGER SCALE
+	if scale_mode == 0:
+		#	CENTER THE VIEWPORT
+		viewport.rect_position.x = (window_size.x / 2) - half_res.x
+		viewport.rect_position.y = (window_size.y / 2) - half_res.y
+		#	DETERMINE WHAT THE HIGHEST INTEGER MULTIPLE IS
+		multiple = window_size / res
+		multiple = Vector2(floor(multiple.x),floor(multiple.y))
+		#	SET THE HIGHEST SCALE AXIS TO THE LOWEST TO STAY SQUARE
+		if multiple.x < multiple.y: multiple.y = multiple.x
+		if multiple.x > multiple.y: multiple.x = multiple.y
+		#	SCALE THE VIEWPORT (IF OVERSCALE IS ON, SCALE IT BY 1 EXTRA)
+		viewport.rect_scale = multiple + Vector2(overscale,overscale)
+		#viewport.rect_scale = Vector2(2,2)
+#	SCALE TO FIT
+	if scale_mode == 1:
+		get_tree().set_screen_stretch(SceneTree.STRETCH_MODE_VIEWPORT,SceneTree.STRETCH_ASPECT_KEEP,res,1)
+#	BORDER
+	border.rect_size = window_size
+