Picker: Override block order for certain categories

https://phabricator.endlessm.com/T35663

Author: dylanmccall

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

@@ -4,8 +4,23 @@ extends MarginContainer
 signal block_picked(block: Block)
 
 const BlockCategory = preload("res://addons/block_code/ui/picker/categories/block_category.gd")
+const BlockDefinition = preload("res://addons/block_code/code_generation/block_definition.gd")
 const Util = preload("res://addons/block_code/ui/util.gd")
 
+const CATEGORY_ORDER_OVERRIDE = {
+	"Lifecycle":
+	[
+		"ready",
+		"process",
+	],
+	"Logic | Conditionals":
+	[
+		"if",
+		"else",
+		"else_if",
+	]
+}
+
 var category: BlockCategory
 
 @onready var _context := BlockEditorContext.get_default()
@@ -20,11 +35,25 @@ func _ready():
 	if _context.block_script == null:
 		return
 
-	for block_definition in _context.block_script.get_blocks_in_category(category):
+	if category == null:
+		return
+
+	var category_order = CATEGORY_ORDER_OVERRIDE.get(category.name)
+	var block_definitions = _context.block_script.get_blocks_in_category(category)
+	if category_order:
+		block_definitions.sort_custom(_sort_blocks_by_list_order.bind(category_order))
+
+	for block_definition in block_definitions:
 		var block: Block = _context.block_script.instantiate_block(block_definition)
 
 		block.color = category.color
 		block.can_delete = false
 		block.drag_started.connect(func(block: Block): block_picked.emit(block))
 
 		_blocks.add_child(block)
+
+
+static func _sort_blocks_by_list_order(block_definition_a, block_definition_b, name_order: Array) -> bool:
+	var a_order = name_order.find(block_definition_a.name)
+	var b_order = name_order.find(block_definition_b.name)
+	return a_order >= 0 and a_order < b_order or b_order == -1