Add post-import script (closes #41, closes #47).

project/addons/godot-steam-audio/src/post_import.gd

@@ -0,0 +1,62 @@
+@tool
+# Generates SteamAudioGeometry for imported scenes with hints.
+class_name SteamAudioPostImport
+extends EditorScenePostImport
+
+var scene_root: Node
+var STEAM_AUDIO_GEOM_PREFIX := "-sasg"
+var STEAM_AUDIO_DYN_GEOM_PREFIX := "-sadg"
+
+enum GeomType {
+	NONE = 0,
+	STATIC = 1,
+	DYNAMIC = 2
+}
+
+func _post_import(scene: Node) -> Node:
+	self.scene_root = scene
+	iterate(scene)
+	return scene
+
+
+func iterate(n: Node) -> void:
+	var typ := steam_audio_geom_type(n)
+	if typ != GeomType.NONE:
+		var g: Node 
+		match typ:
+			GeomType.STATIC:
+				g = SteamAudioGeometry.new() 
+				g.name = "SteamAudioGeometry"
+			GeomType.DYNAMIC:
+				g = SteamAudioDynamicGeometry.new()
+				g.name = "SteamAudioDynamicGeometry"
+		g.set_material(preload("res://addons/godot-steam-audio/materials/default_material.tres"))	
+		n.add_child(g)
+		g.owner = self.scene_root
+
+	for child in n.get_children():
+		iterate(child)
+
+
+func steam_audio_geom_type(n: Node) -> GeomType:
+	if n is MeshInstance3D:
+		if n.name.ends_with(STEAM_AUDIO_GEOM_PREFIX):
+			n.name = n.name.substr(0, n.name.length() - 5)
+			return GeomType.STATIC
+		elif n.name.ends_with(STEAM_AUDIO_DYN_GEOM_PREFIX):
+			n.name = n.name.substr(0, n.name.length() - 5)
+			return GeomType.DYNAMIC
+
+	elif n is CollisionShape3D:
+		# check parent name because -colonly generates plain names
+		# for the collision shapes. we do not check the grandparents
+		# (for the -col case) because we've already generated a geometry for the mesh instance.
+		if n.get_parent().name.ends_with(STEAM_AUDIO_GEOM_PREFIX):
+			n.get_parent().name = n.get_parent().name.substr(0, n.get_parent().name.length() - 5)
+			return GeomType.STATIC
+		elif n.get_parent().name.ends_with(STEAM_AUDIO_DYN_GEOM_PREFIX):
+			n.get_parent().name = n.get_parent().name.substr(0, n.get_parent().name.length() - 5)
+			return GeomType.DYNAMIC
+
+	return GeomType.NONE
+