add projectiles

scripts/debug/debug_collision_shapes.gd

@@ -1,6 +1,8 @@
 class_name DebugCollisionShapes
 extends RefCounted
 
+const MARGIN = 0.01
+
 var _mesh_nodes: Array[MeshInstance3D] = []
 
 
@@ -21,32 +23,32 @@ func init(children: Array[Node], parent: Node, material: Material) -> void:
 		if shape_node.shape is CapsuleShape3D:
 			var shape := shape_node.shape as CapsuleShape3D
 			var mesh := CapsuleMesh.new()
-			mesh.radius = shape.radius
-			mesh.height = shape.height
+			mesh.radius = shape.radius + MARGIN
+			mesh.height = shape.height + MARGIN
 			mesh.radial_segments = 8
 			mesh.rings = 1
 			mesh_node.mesh = mesh
 		if shape_node.shape is SphereShape3D:
 			var shape := shape_node.shape as SphereShape3D
 			var mesh := SphereMesh.new()
-			mesh.radius = shape.radius
-			mesh.height = shape.radius * 2
+			mesh.radius = shape.radius + MARGIN
+			mesh.height = shape.radius * 2 + MARGIN
 			mesh.radial_segments = 8
 			mesh.rings = 4
 			mesh_node.mesh = mesh
 		if shape_node.shape is CylinderShape3D:
 			var shape := shape_node.shape as CylinderShape3D
 			var mesh := CylinderMesh.new()
-			mesh.top_radius = shape.radius
-			mesh.bottom_radius = shape.radius
-			mesh.height = shape.height
+			mesh.top_radius = shape.radius + MARGIN
+			mesh.bottom_radius = shape.radius + MARGIN
+			mesh.height = shape.height + MARGIN
 			mesh.radial_segments = 8
 			mesh.rings = 0
 			mesh_node.mesh = mesh
 
 		mesh_node.material_override = material
 		mesh_node.cast_shadow = GeometryInstance3D.SHADOW_CASTING_SETTING_OFF
-		mesh_node.visible = false
+		mesh_node.visible = Debugger.mode == Debugger.Mode.FULL
 		parent.add_child(mesh_node)
 		mesh_node.global_transform = (child as Node3D).global_transform
 		_mesh_nodes.append(mesh_node)

scripts/enemies/projectile_spawner.gd

@@ -0,0 +1,22 @@
+extends Node3D
+
+@export var _spawn_point: Node3D
+@export var _projectile_scene: PackedScene
+@export var _velocity: Vector3 = Vector3.FORWARD
+@export var _spawn_rate: float = 2
+
+var _spawn_timer: float
+
+
+func _ready() -> void:
+	_spawn_timer = _spawn_rate
+
+
+func _process(delta: float) -> void:
+	if _spawn_timer <= 0:
+		_spawn_timer = _spawn_rate
+		var projectile := _projectile_scene.instantiate() as Projectile
+		projectile.init(basis * _velocity, _spawn_point.global_position)
+		add_child(projectile)
+
+	_spawn_timer -= delta

scripts/projectiles/projectile.gd

@@ -0,0 +1,32 @@
+class_name Projectile
+extends Area3D
+
+@export var _collision_debug_material: Material
+
+var _start_position: Vector3
+var _velocity: Vector3
+var _lifetime: float
+
+var _life_timer: float
+
+var _debug_collision_shapes := DebugCollisionShapes.new()
+
+
+func _ready() -> void:
+	_life_timer = _lifetime
+	_debug_collision_shapes.init(get_children(), self, _collision_debug_material)
+	global_position = _start_position
+
+
+func _process(delta: float) -> void:
+	if _life_timer <= 0:
+		queue_free()
+
+	_life_timer -= delta
+	global_position += _velocity * delta
+
+
+func init(velocity: Vector3, start_position: Vector3, lifetime: float = 10) -> void:
+	_velocity = velocity
+	_start_position = start_position
+	_lifetime = lifetime