undo/redo/restart buttons/indicators

main.gd

@@ -19,6 +19,9 @@ func _ready() -> void:
 	advance_level()
 
 func _process(delta: float) -> void:
+	$UndoButton.disabled = not hist.has_undo()
+	$RedoButton.disabled = not hist.has_redo()
+	$RestartButton.disabled = not hist.has_undo()
 	if $TopLeft.is_on_screen() and $BottomRight.is_on_screen():
 		return
 	camera.position.y += 10*delta
@@ -33,20 +36,29 @@ func _input(event: InputEvent) -> void:
 	elif event.is_action_pressed("r", true, true):
 		step(Vector2i.RIGHT)
 	elif event.is_action_pressed("undo", true, true):
+		undo()
+	elif event.is_action_pressed("redo", true, true):
+		redo()
+	elif event.is_action_pressed("restart", true, true):
+		restart()
+
+func undo():
 	if hist.undo():
 		sound.stream = sounds_undo
 		sound.play()
-	elif event.is_action_pressed("redo", true, true):
+
+func redo():
 	if hist.redo():
 		sound.stream = sounds_redo
 		sound.play()
-	elif event.is_action_pressed("restart", true, true):
-		restart()
 
 # TODO: make restart undoable?
 func restart():
 	while hist.has_undo():
 		hist.undo()
+	# i think it's unintuitive to be able to redo from restart
+	# scratch that i like that, don't clear the history
+	# you can like replay your steps up to a point
 
 func step(move: Vector2i):
 	var pos := player.lpos

main.tscn

@@ -1,7 +1,10 @@
-[gd_scene load_steps=6 format=3 uid="uid://lrk2whqxl0w0"]
+[gd_scene load_steps=9 format=3 uid="uid://lrk2whqxl0w0"]
 
 [ext_resource type="Script" uid="uid://c707s0tgd88pg" path="res://main.gd" id="1_ig7tw"]
 [ext_resource type="Script" uid="uid://c8ywa33v3jq7t" path="res://board.gd" id="2_0xm2m"]
+[ext_resource type="Texture2D" uid="uid://bl73lsxse1roj" path="res://undo.png" id="3_lquwl"]
+[ext_resource type="Texture2D" uid="uid://cs7ofsoatkhpk" path="res://redo.png" id="4_7mycd"]
+[ext_resource type="Texture2D" uid="uid://dkl0lf6wlidup" path="res://restart.png" id="5_272bh"]
 
 [sub_resource type="ProceduralSkyMaterial" id="ProceduralSkyMaterial_ig7tw"]
 ground_bottom_color = Color(0.270778, 0.538085, 0.397052, 1)
@@ -36,3 +39,34 @@ aabb = AABB(0, 0, 0, 2, 2, 2)
 [node name="Board" type="Node3D" parent="."]
 script = ExtResource("2_0xm2m")
 metadata/_custom_type_script = "uid://c8ywa33v3jq7t"
+
+[node name="UndoButton" type="Button" parent="."]
+offset_left = -5.0
+offset_top = 1.0
+offset_right = 101.0
+offset_bottom = 115.0
+icon = ExtResource("3_lquwl")
+flat = true
+expand_icon = true
+
+[node name="RedoButton" type="Button" parent="."]
+offset_left = 108.0
+offset_top = 3.0
+offset_right = 226.0
+offset_bottom = 113.0
+icon = ExtResource("4_7mycd")
+flat = true
+expand_icon = true
+
+[node name="RestartButton" type="Button" parent="."]
+offset_left = 245.0
+offset_top = 4.0
+offset_right = 369.0
+offset_bottom = 116.0
+icon = ExtResource("5_272bh")
+flat = true
+expand_icon = true
+
+[connection signal="pressed" from="UndoButton" to="." method="undo"]
+[connection signal="pressed" from="RedoButton" to="." method="redo"]
+[connection signal="pressed" from="RestartButton" to="." method="restart"]

redo.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cs7ofsoatkhpk"
+path="res://.godot/imported/redo.png-ee35da30d5564f6349e0e057a85ac757.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://redo.png"
+dest_files=["res://.godot/imported/redo.png-ee35da30d5564f6349e0e057a85ac757.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

restart.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dkl0lf6wlidup"
+path="res://.godot/imported/restart.png-26b7c787948cb57c7b611be1d72180b7.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://restart.png"
+dest_files=["res://.godot/imported/restart.png-26b7c787948cb57c7b611be1d72180b7.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

undo.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bl73lsxse1roj"
+path="res://.godot/imported/undo.png-84d838c088789c9f3b743b68335cbb34.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://undo.png"
+dest_files=["res://.godot/imported/undo.png-84d838c088789c9f3b743b68335cbb34.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