Added picking with MMB

project/blocky_game/blocks/blocks.gd

@@ -93,6 +93,13 @@ func get_block(id: int) -> Block:
 	return _blocks[id]
 
 
+func get_raw_mapping(raw_id: int) -> RawMapping:
+	assert(raw_id >= 0)
+	var rm = _raw_mappings[raw_id]
+	assert(rm != null)
+	return rm
+
+
 func get_block_count() -> int:
 	return len(_blocks)
 
@@ -104,6 +111,9 @@ func _create_block(params: Dictionary):
 		"backface_culling": true,
 		"directory": params.name
 	})
+
+	var block = Block.new()
+	block.id = len(_blocks)
 	
 	for i in len(params.voxels):
 		var vname = params.voxels[i]
@@ -112,9 +122,13 @@ func _create_block(params: Dictionary):
 			push_error("Could not find voxel named {0}".format([vname]))
 		assert(id != -1)
 		params.voxels[i] = id
+		var rm = RawMapping.new()
+		rm.block_id = block.id
+		rm.variant_index = i
+		if id >= len(_raw_mappings):
+			_raw_mappings.resize(id + 1)
+		_raw_mappings[id] = rm
 
-	var block = Block.new()
-	block.id = len(_blocks)
 	block.name = params.name
 	block.directory = params.directory
 	block.rotation_type = params.rotation_type

project/blocky_game/gui/hotbar.gd

@@ -35,3 +35,10 @@ func select_slot(i: int):
 func get_selected_block_type() -> int:
 	return _inventory[_inventory_index]
 
+
+func try_select_slot_by_block_id(block_id: int):
+	for i in len(_inventory):
+		var id = _inventory[i]
+		if id == block_id:
+			select_slot(i)
+			break

project/blocky_game/player/avatar_interaction.gd

@@ -29,6 +29,7 @@ var _terrain_tool = null
 var _cursor = null
 var _action_place = false
 var _action_remove = false
+var _action_pick = false
 
 
 func _ready():
@@ -72,7 +73,8 @@ func _physics_process(delta):
 	
 	# These inputs have to be in _fixed_process because they rely on collision queries
 	if hit != null:
-		var has_cube = _terrain_tool.get_voxel(hit.position) != 0
+		var hit_raw_id = _terrain_tool.get_voxel(hit.position)
+		var has_cube = hit_raw_id != 0
 		
 		if _action_remove and has_cube:
 			var pos = hit.position
@@ -89,9 +91,14 @@ func _physics_process(delta):
 					print("Place voxel at ", pos)
 			else:
 				print("Can't place here!")
+		
+		elif _action_pick:
+			var rm := Blocks.get_raw_mapping(hit_raw_id)
+			_hotbar.try_select_slot_by_block_id(rm.block_id)
 
 	_action_place = false
 	_action_remove = false
+	_action_pick = false
 
 
 func _unhandled_input(event):
@@ -102,6 +109,8 @@ func _unhandled_input(event):
 					_action_remove = true
 				BUTTON_RIGHT:
 					_action_place = true
+				BUTTON_MIDDLE:
+					_action_pick = true
 
 	elif event is InputEventKey:
 		if event.pressed: