Tileset panel UI improvements

src/Classes/Cels/CelTileMap.gd

@@ -22,7 +22,6 @@ func update_texture() -> void:
 			# Prevent from drawing on empty image portions.
 			if index == 0 and tileset.tiles.size() > 1:
 				var coords := get_tile_coords(i)
-				var rect := Rect2i(coords, tileset.tile_size)
 				var current_tile := tileset.tiles[index]
 				var tile_size := current_tile.image.get_size()
 				image.blit_rect(current_tile.image, Rect2i(Vector2i.ZERO, tile_size), coords)

src/UI/TilesPanel.gd

@@ -5,7 +5,9 @@ enum TileEditingMode { MANUAL, AUTO, STACK }
 
 const TRANSPARENT_CHECKER := preload("res://src/UI/Nodes/TransparentChecker.tscn")
 
+static var placing_tiles := false
 static var tile_editing_mode := TileEditingMode.AUTO
+static var selected_tile_index := 0
 var current_tileset: TileSetCustom
 
 @onready var h_flow_container: HFlowContainer = $VBoxContainer/ScrollContainer/HFlowContainer
@@ -34,14 +36,22 @@ func _update_tileset(cel: BaseCel) -> void:
 	if tilemap_cel != Global.current_project.get_current_cel():
 		tilemap_cel.tileset.updated.disconnect(_update_tileset)
 	var tileset := tilemap_cel.tileset
+	var button_group := ButtonGroup.new()
+	if selected_tile_index >= tileset.tiles.size():
+		selected_tile_index = 0
 	for i in tileset.tiles.size():
-		var tile = tileset.tiles[i]
+		var tile := tileset.tiles[i]
-		var button := _create_tile_button(ImageTexture.create_from_image(tile.image), i)
+		var texture := ImageTexture.create_from_image(tile.image)
+		var button := _create_tile_button(texture, i, button_group)
+		if i == selected_tile_index:
+			button.button_pressed = true
 		h_flow_container.add_child(button)
 
 
-func _create_tile_button(texture: Texture2D, index: int) -> Button:
+func _create_tile_button(texture: Texture2D, index: int, button_group: ButtonGroup) -> Button:
 	var button := Button.new()
+	button.button_group = button_group
+	button.toggle_mode = true
 	button.custom_minimum_size = Vector2i(36, 36)
 	button.mouse_default_cursor_shape = Control.CURSOR_POINTING_HAND
 	var texture_rect := TextureRect.new()
@@ -54,18 +64,19 @@ func _create_tile_button(texture: Texture2D, index: int) -> Button:
 	texture_rect.set_anchor_and_offset(SIDE_BOTTOM, 1, -6)
 	texture_rect.grow_horizontal = Control.GROW_DIRECTION_BOTH
 	texture_rect.grow_vertical = Control.GROW_DIRECTION_BOTH
-	var transparent_checker := TRANSPARENT_CHECKER.instantiate()
+	var transparent_checker := TRANSPARENT_CHECKER.instantiate() as ColorRect
 	transparent_checker.set_anchors_preset(Control.PRESET_FULL_RECT)
 	transparent_checker.show_behind_parent = true
 	texture_rect.add_child(transparent_checker)
 	button.add_child(texture_rect)
 	button.tooltip_text = str(index)
-	button.pressed.connect(_on_tile_button_pressed.bind(index))
+	button.toggled.connect(_on_tile_button_toggled.bind(index))
 	return button
 
 
-func _on_tile_button_pressed(index: int) -> void:
+func _on_tile_button_toggled(toggled_on: bool, index: int) -> void:
-	print(index)
+	if toggled_on:
+		selected_tile_index = index
 
 
 func _clear_tile_buttons() -> void:
@@ -73,6 +84,10 @@ func _clear_tile_buttons() -> void:
 		child.queue_free()
 
 
+func _on_place_tiles_toggled(toggled_on: bool) -> void:
+	placing_tiles = toggled_on
+
+
 func _on_manual_toggled(toggled_on: bool) -> void:
 	if toggled_on:
 		tile_editing_mode = TileEditingMode.MANUAL

src/UI/TilesPanel.tscn

@@ -15,6 +15,11 @@ script = ExtResource("1_d2oc5")
 [node name="VBoxContainer" type="VBoxContainer" parent="."]
 layout_mode = 2
 
+[node name="PlaceTiles" type="CheckBox" parent="VBoxContainer"]
+layout_mode = 2
+mouse_default_cursor_shape = 2
+text = "Place tiles"
+
 [node name="HBoxContainer" type="HBoxContainer" parent="VBoxContainer"]
 layout_mode = 2
 
@@ -46,6 +51,7 @@ layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 3
 
+[connection signal="toggled" from="VBoxContainer/PlaceTiles" to="." method="_on_place_tiles_toggled"]
 [connection signal="toggled" from="VBoxContainer/HBoxContainer/Manual" to="." method="_on_manual_toggled"]
 [connection signal="toggled" from="VBoxContainer/HBoxContainer/Auto" to="." method="_on_auto_toggled"]
 [connection signal="toggled" from="VBoxContainer/HBoxContainer/Stack" to="." method="_on_stack_toggled"]