Test procedural mesh generation

addons/inspector_buttons/inspector_buttons.gd

@@ -0,0 +1,49 @@
+@tool
+extends EditorPlugin
+
+var editor_button_plugin:EditorButtonPlugin
+
+func _enter_tree() -> void:
+	print("[inspector_buttons] enter")
+	editor_button_plugin = EditorButtonPlugin.new()
+	add_inspector_plugin(editor_button_plugin)
+
+
+func _exit_tree() -> void:
+	if is_instance_valid(editor_button_plugin):
+		print("[inspector_buttons] exit")
+		remove_inspector_plugin(editor_button_plugin)
+		editor_button_plugin = null
+
+
+class EditorButtonPlugin extends EditorInspectorPlugin:
+	func _can_handle(object: Object) -> bool:
+		return object.has_method('_add_inspector_buttons')
+
+
+	func _parse_begin(object: Object) -> void:
+		var buttons_data = object._add_inspector_buttons()
+		for button_data in buttons_data:
+			var name = button_data.get("name", null)
+			var icon = button_data.get("icon", null)
+			var pressed = button_data.get("pressed", null)
+			if not name:
+				push_warning('_add_inspector_buttons(): A button does not have a name key. Defaulting to: "Button"')
+				name = "Button"
+			if icon and not icon is Texture:
+				push_warning('_add_inspector_buttons(): The button <{name}> icon is not a texture.'.format({"name":name}))
+				icon = null
+			if not pressed:
+				push_warning('_add_inspector_buttons(): The button <{name}> does not have a pressed key. Skipping.'.format({"name":name}))
+				continue
+			if not pressed is Callable:
+				push_warning('_add_inspector_buttons(): The button <{name}> pressed is not a Callable. Skipping.'.format({"name":name}))
+				continue
+
+			var button = Button.new()
+			button.text = name
+			if icon:
+				button.icon = icon
+				button.expand_icon = true
+			button.pressed.connect(pressed)
+			add_custom_control(button)

addons/inspector_buttons/inspector_buttons.gd.uid

@@ -0,0 +1 @@
+uid://cmkf6s21ky7b5

addons/inspector_buttons/plugin.cfg

@@ -0,0 +1,7 @@
+[plugin]
+
+name="Inspector Buttons"
+description="Quick and dirty Godot inspector plugins. Taken from the internets"
+author="mrcdk"
+version="0.1"
+script="inspector_buttons.gd"

levels/test_procedural_portal.tscn

@@ -0,0 +1,12 @@
+[gd_scene load_steps=3 format=3 uid="uid://c0ieh1abu1xne"]
+
+[ext_resource type="Script" uid="uid://d2bvvjsibau8c" path="res://addons/simple-portal-system/scripts/portal.gd" id="1_ksg6r"]
+[ext_resource type="PackedScene" uid="uid://d1dtxvwk86ple" path="res://procedural_mesh_maker.tscn" id="2_4vena"]
+
+[node name="ProceduralPortal" type="Node3D"]
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+script = ExtResource("1_ksg6r")
+
+[node name="ProceduralMeshMaker" parent="." node_paths=PackedStringArray("portal") instance=ExtResource("2_4vena")]
+portal = NodePath("../MeshInstance3D")

procedural_mesh_maker.gd

@@ -0,0 +1,77 @@
+@tool
+extends Node
+
+@export_range(0.1, 10, 0.01) var height: float = 2.0
+@export_range(0.1, 10, 0.01) var width: float = 1.0
+@export var portal: Portal
+
+func _add_inspector_buttons() -> Array:
+	var buttons = []
+	
+	buttons.push_back({
+		"name": "Generate Portal Mesh",
+		"pressed": generate_portal_mesh
+	})
+	
+	return buttons
+
+func _get_configuration_warnings() -> PackedStringArray:
+	var warnings = []
+	
+	if portal == null:
+		warnings.append("Assign a portal to generate the mesh for")
+	
+	return warnings
+
+func generate_portal_mesh() -> void:
+	if portal == null:
+		push_error("No portal")
+		return
+	
+	if portal.mesh != null:
+		push_warning("The portal %s already has a mesh!" % portal.name)
+		return
+	
+	var mesh = ArrayMesh.new()
+	print("[PMM] Creating mesh")
+	
+	var surface_array = []
+	surface_array.resize(Mesh.ARRAY_MAX)
+	
+	var verts = PackedVector3Array()
+	var uvs = PackedVector2Array()
+	var normals = PackedVector3Array()
+	var indices = PackedInt32Array()
+	
+	# Bottom left triangle of a rect
+	verts.append(Vector3(-width/2, 0, 0))
+	verts.append(Vector3(width/2, 0, 0))
+	verts.append(Vector3(width/2, height, 0))
+	
+	uvs.append(Vector2(0, 1))
+	uvs.append(Vector2(1, 1))
+	uvs.append(Vector2(0, 0))
+	
+	normals.append_array([Vector3.FORWARD, Vector3.FORWARD, Vector3.FORWARD])
+	indices.append_array([0, 1, 2])
+	
+	# Top right triangle of a rect
+	verts.append(Vector3(-width/2, 0, 0))
+	verts.append(Vector3(width/2, height, 0))
+	verts.append(Vector3(-width/2, height, 0))
+	
+	uvs.append(Vector2(0, 1))
+	uvs.append(Vector2(1, 0))
+	uvs.append(Vector2(0, 0))
+	normals.append_array([Vector3.FORWARD, Vector3.FORWARD, Vector3.FORWARD])
+	indices.append_array([3, 4, 5])
+	
+	surface_array[Mesh.ARRAY_VERTEX] = verts
+	surface_array[Mesh.ARRAY_TEX_UV] = uvs
+	surface_array[Mesh.ARRAY_NORMAL] = normals
+	surface_array[Mesh.ARRAY_INDEX] = indices
+	
+	# No blendshapes, lods, or compression used.
+	mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, surface_array)
+	portal.mesh = mesh
+	print("[PMM] Mesh assigned")

procedural_mesh_maker.gd.uid

@@ -0,0 +1 @@
+uid://xt85yw2lp6dw

procedural_mesh_maker.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://d1dtxvwk86ple"]
+
+[ext_resource type="Script" uid="uid://xt85yw2lp6dw" path="res://procedural_mesh_maker.gd" id="1_1a4ua"]
+
+[node name="ProceduralMeshMaker" type="Node"]
+script = ExtResource("1_1a4ua")

project.godot

@@ -22,7 +22,7 @@ window/size/viewport_height=1080
 
 [editor_plugins]
 
-enabled=PackedStringArray("res://addons/portal_gizmos/plugin.cfg")
+enabled=PackedStringArray("res://addons/inspector_buttons/plugin.cfg", "res://addons/portal_gizmos/plugin.cfg")
 
 [input]