Add block for custom key input

Author: wnbaum

addons/block_code/ui/picker/categories/category_factory.gd

@@ -478,6 +478,29 @@ static func get_built_in_blocks(_class_name: String) -> Array[Block]:
 				b.category = "Signal"
 				block_list.append(b)
 
+		"CharacterBody2D":
+			var b = BLOCKS["statement_block"].instantiate()
+			b.block_type = Types.BlockType.EXECUTE
+			b.block_format = "Move with keys {up: STRING} {down: STRING} {left: STRING} {right: STRING} with speed {speed: VECTOR2}"
+			b.statement = (
+				"var dir = Vector2()\n"
+				+ "dir.x += float(Input.is_key_pressed(OS.find_keycode_from_string({right})))\n"
+				+ "dir.x -= float(Input.is_key_pressed(OS.find_keycode_from_string({left})))\n"
+				+ "dir.y += float(Input.is_key_pressed(OS.find_keycode_from_string({down})))\n"
+				+ "dir.y -= float(Input.is_key_pressed(OS.find_keycode_from_string({up})))\n"
+				+ "dir = dir.normalized()\n"
+				+ "velocity = dir*{speed}\n"
+				+ "move_and_slide()"
+			)
+			b.defaults = {
+				"up": "W",
+				"down": "S",
+				"left": "A",
+				"right": "D",
+			}
+			b.category = "Input"
+			block_list.append(b)
+
 	var prop_list = ClassDB.class_get_property_list(_class_name, true)
 	block_list.append_array(blocks_from_property_list(prop_list, props))