SimpleSpawner: Rename frequency to period

This property is the time, in seconds, to wait between spawning scenes. This is
a period/interval/wavelength, not a frequency, which would be measured in Hz,
or 1/seconds.

Add a new property and corresponding blocks with the correct definition.

Adjust the existing property to delegate to the new property. Use
@export_storage to allow its value to be set from existing serialized scenes
without it being visible in the inspector. This annotation is new in Godot 4.3
so bump our minimum supported version.

When a scene that overrides the old property is loaded in the editor, the value
will be propagated to the new property, which is then saved into the scene.
Adjusting the new property also adjusts the old property's value. The old
property will hang around, harmlessly mirroring the new property, in the .tscn
file until it is removed in a text editor.

The instances of “frequency” that I have not changed are in the example scene's
on-screen documentation. In this case it was actually used correctly: the
keyboard action to increase the frequency reduces the property which is now
called period, and the decrease action respectively increases the period.

.github/workflows/checks.yaml

@@ -27,7 +27,7 @@ jobs:
     name: Tests
     strategy:
       matrix:
-        godot-version: [4.2.2, 4.3.0]
+        godot-version: [4.3.0]
     runs-on: ubuntu-latest
     steps:
     - name: Checkout

addons/block_code/simple_spawner/simple_spawner.gd

@@ -23,8 +23,8 @@ enum LimitBehavior { REPLACE, NO_SPAWN }
 
 ## The period of time in seconds to spawn another component. If zero, they won't spawn
 ## automatically. Use the "Spawn" block.
-@export_range(0.0, 10.0, 0.1, "or_greater", "suffix:s") var spawn_frequency: float = 0.0:
-	set = _set_spawn_fraquency
+@export_range(0.0, 10.0, 0.1, "or_greater", "suffix:s") var spawn_period: float = 0.0:
+	set = _set_spawn_period
 
 ## How many spawned scenes are allowed. If zero, there is no limit.
 @export_range(0, 50, 0.1, "or_greater", "suffix:scenes") var spawn_limit: int = 50
@@ -34,6 +34,15 @@ enum LimitBehavior { REPLACE, NO_SPAWN }
 ## - No Spawn: No spawn happens until any spawned scene is removed by other means.
 @export var limit_behavior: LimitBehavior
 
+## Old name for [member spawn_period].
+##
+## @deprecated: Use [member spawn_period] instead
+@export_storage var spawn_frequency: float:
+	get:
+		return spawn_period
+	set(value):
+		spawn_period = value
+
 var _timer: Timer
 var _spawned_scenes: Array[Node]
 
@@ -53,20 +62,20 @@ func _remove_oldest_spawned():
 		spawned.get_parent().remove_child(spawned)
 
 
-func _set_spawn_fraquency(new_frequency: float):
-	spawn_frequency = new_frequency
+func _set_spawn_period(new_period: float):
+	spawn_period = new_period
 	if not _timer or not is_instance_valid(_timer):
 		return
-	_timer.wait_time = spawn_frequency
+	_timer.wait_time = spawn_period
 
 
 func spawn_start():
-	if spawn_frequency == 0.0:
+	if spawn_period == 0.0:
 		return
 	if not _timer or not is_instance_valid(_timer):
 		_timer = Timer.new()
 		add_child(_timer)
-		_timer.wait_time = spawn_frequency
+		_timer.wait_time = spawn_period
 		_timer.timeout.connect(spawn_once)
 	_timer.start()
 	spawn_once.call_deferred()
@@ -107,8 +116,9 @@ func spawn_once():
 			spawned.position = global_position
 
 
+## @deprecated: Set the [member spawn_period] property instead
 func do_set_spawn_frequency(new_frequency: float):
-	_set_spawn_fraquency(new_frequency)
+	spawn_period = new_frequency
 
 
 static func setup_custom_blocks():
@@ -159,6 +169,7 @@ static func setup_custom_blocks():
 	block_definition.type = Types.BlockType.STATEMENT
 	block_definition.display_template = "set spawn frequency to {new_frequency: FLOAT}"
 	block_definition.code_template = "do_set_spawn_frequency({new_frequency})"
+	block_definition.hidden = true
 	block_list.append(block_definition)
 
 	block_definition = BlockDefinition.new()
@@ -169,6 +180,26 @@ static func setup_custom_blocks():
 	block_definition.variant_type = TYPE_FLOAT
 	block_definition.display_template = "spawn frequency"
 	block_definition.code_template = "spawn_frequency"
+	block_definition.hidden = true
+	block_list.append(block_definition)
+
+	block_definition = BlockDefinition.new()
+	block_definition.name = &"simplespawner_set_spawn_period"
+	block_definition.target_node_class = _class_name
+	block_definition.category = "Lifecycle | Spawn"
+	block_definition.type = Types.BlockType.STATEMENT
+	block_definition.display_template = "set spawn period to {new_period: FLOAT}"
+	block_definition.code_template = "spawn_period = {new_period}"
+	block_list.append(block_definition)
+
+	block_definition = BlockDefinition.new()
+	block_definition.name = &"simplespawner_get_spawn_period"
+	block_definition.target_node_class = _class_name
+	block_definition.category = "Lifecycle | Spawn"
+	block_definition.type = Types.BlockType.VALUE
+	block_definition.variant_type = TYPE_FLOAT
+	block_definition.display_template = "spawn period"
+	block_definition.code_template = "spawn_period"
 	block_list.append(block_definition)
 
 	BlocksCatalog.add_custom_blocks(_class_name, block_list, [], {})

asset-template.json.hb

@@ -2,7 +2,7 @@
   "title": "Block Coding",
   "description": "Create games using a high-level, block-based visual programming language.\r\n\r\nIntended as an educational tool for learners in the earlier stages of their journey towards becoming game developers. This plugin lets you create your first games with high-level blocks, avoiding the immediate need to learn to code in GDScript. Building games in this way provides a gentle introduction to programming concepts and allows you to focus your efforts on becoming familiar with the rest of the Godot Editor UI.",
   "category_id": "5",
-  "godot_version": "4.2",
+  "godot_version": "4.3",
   "version_string": "{{ context.release.name }}",
   "cost": "MIT",
   "support_level": "community",