207 lines
6.8 KiB
GDScript
207 lines
6.8 KiB
GDScript
@tool
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class_name StarterIslandRegion
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extends WorldRegion
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const FishingShopInteractionType = preload(
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"res://world/fishing_shop_interaction.gd"
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)
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const FOLIAGE_WIND_SHADER: Shader = preload(
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"res://world/materials/foliage_wind.gdshader"
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)
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const FOLIAGE_MATERIAL_NAMES: Array[StringName] = [
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&"leaf",
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&"leaf_light",
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&"leaf_dark",
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]
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@export_group("Owned Nodes")
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@export_node_path("MeshInstance3D")
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var visual_mesh_path: NodePath = (
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^"Terrain/Visual/starter_island"
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)
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@export_node_path("Node3D")
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var terrain_visual_root_path: NodePath = ^"Terrain/Visual"
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@export_node_path("CollisionShape3D")
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var terrain_collision_shape_path: NodePath = (
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^"Terrain/Collision/Shape"
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)
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@export_node_path("Marker3D")
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var player_spawn_path: NodePath = ^"PlayerSpawn"
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@export_node_path("Area3D")
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var fishing_shop_path: NodePath = (
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^"Interactables/FishingShopWorld/InteractionArea"
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)
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@export_group("Terrain Collision")
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@export var rebuild_terrain_collision_on_ready: bool = false
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@export_group("Foliage Wind")
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@export_range(0.0, 0.4, 0.005) var foliage_wind_strength: float = 0.12
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@export_range(0.0, 4.0, 0.05) var foliage_wind_speed: float = 0.9
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func _ready() -> void:
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if rebuild_terrain_collision_on_ready or not has_terrain_collision():
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_build_terrain_collision()
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_apply_foliage_wind()
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if Engine.is_editor_hint():
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update_configuration_warnings()
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func get_player_spawn_transform() -> Transform3D:
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var spawn: Marker3D = get_node_or_null(player_spawn_path) as Marker3D
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return spawn.global_transform if spawn != null else global_transform
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func get_fishing_shop() -> FishingShopInteractionType:
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return get_node_or_null(fishing_shop_path) as FishingShopInteractionType
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func get_saltwater_shoreline_mesh() -> MeshInstance3D:
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return get_node_or_null(^"ShorelineRibbons/Ocean") as MeshInstance3D
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func has_terrain_collision() -> bool:
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var collision_shape: CollisionShape3D = (
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get_node_or_null(terrain_collision_shape_path) as CollisionShape3D
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)
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return collision_shape != null and collision_shape.shape != null
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func _build_terrain_collision() -> void:
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var terrain_root: Node = get_node_or_null(terrain_visual_root_path)
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if terrain_root == null:
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terrain_root = get_node_or_null(visual_mesh_path)
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var collision_shape: CollisionShape3D = (
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get_node_or_null(terrain_collision_shape_path) as CollisionShape3D
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)
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if terrain_root == null:
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push_error("Starter island visual terrain root is unavailable.")
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return
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if collision_shape == null:
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push_error("Starter island collision owner is unavailable.")
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return
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var mesh_instances := _collect_terrain_mesh_instances(terrain_root)
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if mesh_instances.is_empty():
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var visual_mesh: MeshInstance3D = terrain_root as MeshInstance3D
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if visual_mesh == null or visual_mesh.mesh == null:
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push_error("Starter island visual mesh is unavailable.")
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return
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var fallback_shape: ConcavePolygonShape3D = (
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visual_mesh.mesh.create_trimesh_shape()
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)
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if fallback_shape == null or fallback_shape.get_faces().is_empty():
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push_error("Starter island terrain collision could not be created.")
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return
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collision_shape.shape = fallback_shape
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return
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var terrain_shape := ConcavePolygonShape3D.new()
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var faces := PackedVector3Array()
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for mesh_instance: MeshInstance3D in mesh_instances:
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var mesh: Mesh = mesh_instance.mesh
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if mesh == null:
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continue
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var mesh_shape := mesh.create_trimesh_shape()
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if mesh_shape == null:
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continue
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for face_vertex: Vector3 in mesh_shape.get_faces():
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faces.append(to_local(mesh_instance.to_global(face_vertex)))
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if faces.is_empty():
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push_error("Starter island terrain collision could not be created.")
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return
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terrain_shape.set_faces(faces)
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collision_shape.shape = terrain_shape
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func _collect_terrain_mesh_instances(root: Node) -> Array[MeshInstance3D]:
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var mesh_instances: Array[MeshInstance3D] = []
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if root is MeshInstance3D:
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mesh_instances.append(root as MeshInstance3D)
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for child: Node in root.get_children():
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mesh_instances.append_array(_collect_terrain_mesh_instances(child))
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return mesh_instances
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func _apply_foliage_wind() -> void:
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var terrain_root: Node = get_node_or_null(terrain_visual_root_path)
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if terrain_root == null:
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return
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for mesh_instance: MeshInstance3D in _collect_terrain_mesh_instances(
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terrain_root
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):
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_apply_foliage_wind_to_mesh(mesh_instance)
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func _apply_foliage_wind_to_mesh(mesh_instance: MeshInstance3D) -> void:
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if mesh_instance.mesh == null:
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return
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var bounds: AABB = mesh_instance.get_aabb()
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var mesh_global_scale: Vector3 = mesh_instance.global_basis.get_scale().abs()
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var horizontal_scale: float = maxf(
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(mesh_global_scale.x + mesh_global_scale.z) * 0.5,
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0.001,
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)
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var local_strength: float = foliage_wind_strength / horizontal_scale
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var phase: float = fposmod(
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mesh_instance.global_position.x * 0.73
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+ mesh_instance.global_position.z * 0.41,
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TAU,
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)
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for surface_index: int in mesh_instance.mesh.get_surface_count():
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var source_material: Material = mesh_instance.get_active_material(
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surface_index
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)
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if not source_material is StandardMaterial3D:
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continue
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if not FOLIAGE_MATERIAL_NAMES.has(
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StringName(source_material.resource_name)
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):
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continue
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var source_standard := source_material as StandardMaterial3D
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var wind_material := ShaderMaterial.new()
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wind_material.shader = FOLIAGE_WIND_SHADER
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wind_material.set_shader_parameter(
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"albedo_color",
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source_standard.albedo_color,
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)
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wind_material.set_shader_parameter(
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"material_roughness",
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source_standard.roughness,
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)
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wind_material.set_shader_parameter(
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"material_metallic",
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source_standard.metallic,
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)
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wind_material.set_shader_parameter("local_min_y", bounds.position.y)
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wind_material.set_shader_parameter(
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"local_height",
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maxf(bounds.size.y, 0.001),
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)
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wind_material.set_shader_parameter(
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"local_wind_strength",
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local_strength,
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)
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wind_material.set_shader_parameter("wind_speed", foliage_wind_speed)
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wind_material.set_shader_parameter("wind_phase", phase)
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mesh_instance.set_surface_override_material(
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surface_index,
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wind_material,
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)
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func _get_configuration_warnings() -> PackedStringArray:
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var warnings := PackedStringArray()
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var visual_mesh := get_node_or_null(visual_mesh_path) as MeshInstance3D
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if visual_mesh == null:
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warnings.append("Terrain/Visual terrain mesh node is unavailable.")
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return warnings
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if visual_mesh == null or visual_mesh.mesh == null:
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warnings.append("Terrain/Visual must provide the island mesh.")
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return warnings
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if get_node_or_null(terrain_collision_shape_path) == null:
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warnings.append("Terrain/Collision must provide a collision shape.")
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if get_node_or_null(terrain_visual_root_path) == null:
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warnings.append("Terrain/Visual root is missing for terrain collision generation.")
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if get_node_or_null(player_spawn_path) == null:
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warnings.append("PlayerSpawn marker is missing.")
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if get_node_or_null(fishing_shop_path) == null:
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warnings.append("Fishing Shop placement is missing.")
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return warnings
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