Selection working.

Assuming every single selectable contain an Area3D at the root with selection collision to handle selection

Packs/Kaykit-Proto/obj/dummy.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=12 format=3 uid="uid://qbceryqqfoum"]
+[gd_scene load_steps=11 format=3 uid="uid://qbceryqqfoum"]
 
 [ext_resource type="Texture2D" uid="uid://bsnc11pwypbny" path="res://packs/Kaykit-Proto/obj/prototypebits_texture.png" id="1_6oykk"]
 [ext_resource type="Script" uid="uid://b8p60y4eo8w2n" path="res://core/scripts/entity.gd" id="1_w0ui8"]
@@ -8,7 +8,6 @@
 [ext_resource type="ArrayMesh" uid="uid://cvlxxld3w6siv" path="res://packs/Kaykit-Proto/obj/Dummy_Base_Dummy_Body_Dummy_ArmRight.obj" id="5_w4l2r"]
 [ext_resource type="ArrayMesh" uid="uid://6h2lg4h0y0ea" path="res://packs/Kaykit-Proto/obj/Dummy_Base_Dummy_Body_Dummy_Head.obj" id="6_5dfyn"]
 [ext_resource type="ArrayMesh" uid="uid://b7cky6rmvhxl8" path="res://packs/Kaykit-Proto/obj/Dummy_Base_Dummy_Body_Dummy_Target.obj" id="7_d3okb"]
-[ext_resource type="Texture2D" uid="uid://cg3hn4l231fws" path="res://packs/Kenney-BoardGamesIcon/chess_rook_red.svg" id="8_15r82"]
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_w0ui8"]
 size = Vector3(1, 2, 1)
@@ -21,10 +20,12 @@ transform = Transform3D(0.9, 0, 0, 0, 0.9, 0, 0, 0, 0.9, 0, 0, 0)
 script = ExtResource("1_w0ui8")
 metadata/_custom_type_script = "uid://b8p60y4eo8w2n"
 
-[node name="StaticBody3D" type="StaticBody3D" parent="."]
+[node name="SelectionArea" type="Area3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.0267677, 0)
+collision_layer = 32768
+collision_mask = 0
 
-[node name="CollisionShape3D" type="CollisionShape3D" parent="StaticBody3D"]
+[node name="CollisionShape3D" type="CollisionShape3D" parent="SelectionArea"]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.11408532, 0)
 shape = SubResource("BoxShape3D_w0ui8")
 
@@ -51,8 +52,3 @@ mesh = ExtResource("6_5dfyn")
 [node name="DummyBaseDummyBodyDummyTarget" type="MeshInstance3D" parent="."]
 material_override = SubResource("StandardMaterial3D_th4ew")
 mesh = ExtResource("7_d3okb")
-
-[node name="TextureRect" type="TextureRect" parent="."]
-offset_right = 40.0
-offset_bottom = 40.0
-texture = ExtResource("8_15r82")

addons/Todo_Manager/todo.cfg

@@ -7,7 +7,7 @@ ignore_paths=Array[String]([])
 
 [patterns]
 
-patterns=[["\\bTODO\\b", Color(0.588235, 0.945098, 0.678431, 1), 0], ["\\bHACK\\b", Color(0.835294, 0.737255, 0.439216, 1), 0], ["\\bFIXME\\b", Color(0.835294, 0.439216, 0.439216, 1), 0]]
+patterns=[["\\bTODO\\b", Color(0.588235, 0.945098, 0.678431, 1), 0], ["\\bHACK\\b", Color(0.835294, 0.737255, 0.439216, 1), 0], ["\\bFIXME\\b", Color(0.835294, 0.439216, 0.439216, 1), 0], ["\\bBUG\\b", Color(0.9607843, 0.48682597, 0.4509804, 1), 0]]
 
 [config]
 

core/scripts/entity.gd

@@ -1,5 +1,5 @@
 @icon('uid://br8ndde8qty32')
-extends Node
+extends Node3D
 class_name Entity
 
 
@@ -11,8 +11,8 @@ class_name Entity
 ## Is a node, because we want to deactivate rendering when out of camera and only simulating the world.
 ## Plus, only the entity is replicated in multiplayer
 
+
 func _ready() -> void:
-	add_to_group('entity')
 	add_to_group('selectable-entity')
 
 
@@ -26,17 +26,8 @@ func is_in_selection(selection_box:Rect2,player_cam:Camera3D) -> bool:
 	return false
 
 
-## Check if the entity is under the raycast (usually made by [method SelectionManager.check_raycast])
-## and colliding with entity bouding box
-func is_under_mouse(raycast:Dictionary) -> bool:
-	if raycast:
-		var aabb:AABB = get_entity_aabb()
-		return aabb.has_point(raycast.position)
-
-	return false
-
-
 ## Calculate the node bouding box
+## @deprecated
 func get_entity_aabb(node: Node3D = self, ignore_top_level: bool = true, bounds_transform: Transform3D = Transform3D()) -> AABB:
 	if node == null: return AABB()
 	var box: AABB

core/scripts/player_selection_manager.gd

@@ -11,6 +11,7 @@ var perform_selection := false # Flag to trigger selection in _physics_process
 @onready var optimized_rect: bool = ProjectSettings.get_setting("game/interface/optimized_rectangle", false)
 @export var rect_style: StyleBoxFlat
 @onready var cam = get_viewport().get_camera_3d()
+@onready var hovercontrol:Button = $"../Button"
 
 
 func _ready() -> void:
@@ -48,6 +49,8 @@ func _unhandled_input(e: InputEvent) -> void:
 					max(drag_start.y, e.position.y) - y_min)
 
 		queue_redraw()
+	if !draw_selection and e is InputEventMouseMotion:
+		check_hover()
 
 
 func _physics_process(_delta: float) -> void:
@@ -56,38 +59,60 @@ func _physics_process(_delta: float) -> void:
 		perform_selection = false
 
 
-func check_raycast(mouse_pos: Vector2, collision_mask: int = 4294967295) -> Dictionary:
+func check_hover():
+	# TODO: Hovering and display names
+	var selected = get_selected()
+	if selected.size() > 0:
+		hovercontrol.text = selected[0].name
+	else:
+		hovercontrol.text = ""
+
+	hovercontrol.queue_redraw()
+	pass
+
+
+func get_selected() -> Array[Entity]:
+	var selected: Array[Node] = get_tree().get_nodes_in_group('selected-by-'+str(get_tree().get_multiplayer().get_unique_id()))
+	var selected_entity: Array[Entity]
+	selected_entity.assign(selected)
+	return selected_entity
+
+
+## [param collision_mask] is 32768 by default, so the collision channel 16
+func check_raycast(mouse_pos: Vector2, collision_mask: int = 32768) -> Dictionary:
 	var from = cam.project_ray_origin(mouse_pos)
 	var to = from + cam.project_ray_normal(mouse_pos) * 1000 # Magic number
-	var query = PhysicsRayQueryParameters3D.new()
-	query.from = from
-	query.to = to
-	query.collision_mask = collision_mask
+	var query = PhysicsRayQueryParameters3D.create(from,to,collision_mask)
+	query.collide_with_areas = true
+	query.collide_with_bodies = false
 	var space_state = cam.get_world_3d().direct_space_state
 	#DebugTools.DrawLine(from,to,25.0)
 	return space_state.intersect_ray(query)
 
 
+func deselect_all() -> void:
+	var selected = get_selected()
+	for entity:Entity in selected:
+		entity.deselect()
+
+
 func update_selected_units() -> void:
 	var units_array = get_tree().get_nodes_in_group("selectable-entity")
 	var raycast = {}
 	# Only perform raycast if it's a single click (zero-sized select_box)
 	if select_box.size == Vector2.ZERO:
-		raycast = check_raycast(select_box.position)
-		if raycast:
-			print("found ",raycast.collider.name)
-			#breakpoint
-
+		raycast = check_raycast(select_box.position,)
+		if raycast and raycast.collider:
+			# select entity under mouse
+			# maybe can be extracted from hover instead?
+			var entity = raycast.collider.get_parent()
+			deselect_all()
+			entity.select()
+			# BUG: Deselect previous selection
+			return
 	for entity: Entity in units_array:
 		# TODO: Optimize by searching only in spawned chunks
-		if select_box.size == Vector2.ZERO:
-			# Single click: select entity under mouse via raycast
-			if raycast and entity.is_under_mouse(raycast):
-				entity.select()
-			else:
-				entity.deselect()
-		else:
-			# Drag: select entities within the selection box
+			# select entities within the selection/draggin box
 			if entity.is_in_selection(select_box, cam):
 				entity.select()
 			else:

project.godot

@@ -109,6 +109,11 @@ locale/locale_filter_mode=1
 locale/language_filter=["en", "fr"]
 locale/country_filter=["FR"]
 
+[layer_names]
+
+3d_physics/layer_1="Static"
+3d_physics/layer_16="Selection"
+
 [physics]
 
 3d/run_on_separate_thread=true