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94 lines
3.2 KiB
94 lines
3.2 KiB
extends Area3D |
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class_name HurtBox |
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## A component that receives damage from HitBoxes |
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## Attach to any entity that can be damaged (players, enemies, destructibles) |
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## NOTE: This is a passive detection zone - HitBox handles the collision detection |
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## Global debug visibility toggle (static-like via class name access) |
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static var debug_visible: bool = true |
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## The entity that owns this hurtbox (should be a BaseUnit or similar) |
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@export var owner_entity: Node = null |
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## Debug mesh for visualization |
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var _debug_mesh: MeshInstance3D = null |
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var _debug_material: StandardMaterial3D = null |
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var _hit_flash_timer: float = 0.0 |
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const HIT_FLASH_DURATION: float = 0.3 # seconds |
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func _ready(): |
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# Auto-find owner if not set (traverse up to find BaseUnit) |
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if owner_entity == null: |
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var parent = get_parent() |
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while parent: |
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if parent is BaseUnit: |
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owner_entity = parent |
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break |
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parent = parent.get_parent() |
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# Configure collision - hurtboxes are on layer 5, detect nothing (passive) |
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collision_layer = 16 # Layer 5 (hurtbox) |
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collision_mask = 0 # Don't detect anything - hitboxes detect us |
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# Ensure we can be detected but don't detect others |
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monitorable = true |
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monitoring = false |
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# Add debug visualization |
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_create_debug_visualization() |
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func _process(delta): |
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# Update debug visibility |
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if _debug_mesh: |
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_debug_mesh.visible = HurtBox.debug_visible |
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# Handle hit flash timer |
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if _hit_flash_timer > 0.0: |
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_hit_flash_timer -= delta |
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if _hit_flash_timer <= 0.0: |
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# Flash finished, return to green |
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if _debug_material: |
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_debug_material.albedo_color = Color(0.0, 1.0, 0.0, 0.3) # Green |
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func _create_debug_visualization(): |
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# Find the collision shape to visualize |
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for child in get_children(): |
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if child is CollisionShape3D and child.shape: |
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# Create a semi-transparent green mesh to visualize the hurtbox |
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_debug_mesh = MeshInstance3D.new() |
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_debug_material = StandardMaterial3D.new() |
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_debug_material.albedo_color = Color(0.0, 1.0, 0.0, 0.3) # Green, semi-transparent |
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_debug_material.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA |
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_debug_material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED |
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_debug_material.cull_mode = BaseMaterial3D.CULL_DISABLED # Visible from both sides |
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# Create mesh matching the collision shape |
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var mesh: Mesh = null |
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if child.shape is BoxShape3D: |
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var box_mesh = BoxMesh.new() |
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box_mesh.size = child.shape.size |
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mesh = box_mesh |
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elif child.shape is SphereShape3D: |
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var sphere_mesh = SphereMesh.new() |
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sphere_mesh.radius = child.shape.radius |
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sphere_mesh.height = child.shape.radius * 2 |
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mesh = sphere_mesh |
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elif child.shape is CapsuleShape3D: |
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var capsule_mesh = CapsuleMesh.new() |
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capsule_mesh.radius = child.shape.radius |
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capsule_mesh.height = child.shape.height |
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mesh = capsule_mesh |
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if mesh: |
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_debug_mesh.mesh = mesh |
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_debug_mesh.material_override = _debug_material |
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_debug_mesh.visible = HurtBox.debug_visible |
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# Don't set transform - it inherits from parent CollisionShape3D |
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child.add_child(_debug_mesh) |
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break |
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## Call this when the hurtbox is hit to flash red |
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func flash_hit(): |
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_hit_flash_timer = HIT_FLASH_DURATION |
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if _debug_material: |
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_debug_material.albedo_color = Color(1.0, 0.0, 0.0, 0.5) # Red, semi-transparent
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