class_name RiverbankResourceCluster
extends TerrainResourceCluster

const FERN_OFFSETS := [
	Vector3(-0.8, 0.0, -10.8),
	Vector3(1.1, 0.0, -8.7),
	Vector3(2.9, 0.0, -6.8),
	Vector3(-1.4, 0.0, -4.6),
	Vector3(1.8, 0.0, -2.7),
	Vector3(3.6, 0.0, -0.5),
	Vector3(-0.5, 0.0, 1.2),
	Vector3(2.4, 0.0, 3.4),
	Vector3(-1.8, 0.0, 5.7),
	Vector3(1.4, 0.0, 7.6),
	Vector3(3.8, 0.0, 9.4),
	Vector3(0.2, 0.0, 11.8),
]
const FLOWER_OFFSETS := [
	Vector3(0.2, 0.0, -10.2),
	Vector3(2.2, 0.0, -7.5),
	Vector3(-0.4, 0.0, -5.5),
	Vector3(3.4, 0.0, -3.2),
	Vector3(0.8, 0.0, 0.1),
	Vector3(2.8, 0.0, 2.1),
	Vector3(-0.7, 0.0, 4.4),
	Vector3(2.0, 0.0, 6.4),
	Vector3(0.4, 0.0, 9.8),
]
const STONE_OFFSETS := [
	Vector3(3.9, 0.0, -9.6),
	Vector3(-1.2, 0.0, -7.2),
	Vector3(3.2, 0.0, -4.3),
	Vector3(-0.7, 0.0, -1.2),
	Vector3(3.7, 0.0, 4.6),
	Vector3(-1.1, 0.0, 8.4),
	Vector3(2.7, 0.0, 11.2),
]


func _build_understory() -> void:
	var fern_material := StandardMaterial3D.new()
	fern_material.albedo_color = Color("#315f35")
	fern_material.roughness = 0.94
	fern_material.cull_mode = BaseMaterial3D.CULL_DISABLED
	_assign_multimesh(
		$DecorativeInstances/Understory/FernClumps,
		_create_fern_mesh(fern_material),
		FERN_OFFSETS,
		Vector3(0.8, 0.8, 0.8),
		0.03
	)

	var flower_mesh := SphereMesh.new()
	flower_mesh.radius = 0.13
	flower_mesh.height = 0.22
	flower_mesh.radial_segments = 7
	flower_mesh.rings = 4
	var flower_material := StandardMaterial3D.new()
	flower_material.albedo_color = Color("#efc55a")
	flower_material.roughness = 0.82
	flower_mesh.material = flower_material
	_assign_multimesh(
		$DecorativeInstances/Understory/FlowerClumps, flower_mesh, FLOWER_OFFSETS, Vector3.ONE, 0.2
	)

	var stone_mesh := SphereMesh.new()
	stone_mesh.radius = 1.0
	stone_mesh.height = 2.0
	stone_mesh.radial_segments = 8
	stone_mesh.rings = 4
	var stone_material := StandardMaterial3D.new()
	stone_material.albedo_color = Color("#77786b")
	stone_material.roughness = 0.96
	stone_mesh.material = stone_material
	_assign_multimesh(
		$DecorativeInstances/Understory/BankStones,
		stone_mesh,
		STONE_OFFSETS,
		Vector3(0.62, 0.24, 0.44),
		0.22
	)