Grade em onda

extends Node

const GRID: int = 14
const SPACING: float = 0.9
const AMPLITUDE: float = 1.2

var cubes: Array[MeshInstance3D] = []
var elapsed: float = 0.0


func _ready() -> void:
	_add_environment()
	_add_light()

	var mesh: BoxMesh = BoxMesh.new()
	mesh.size = Vector3(0.6, 0.6, 0.6)

	var offset: float = (GRID - 1) * SPACING * 0.5

	for x in GRID:
		var material: StandardMaterial3D = StandardMaterial3D.new()
		material.albedo_color = Color.from_hsv(float(x) / GRID * 0.4 + 0.5, 0.5, 0.95)
		material.roughness = 0.35

		for z in GRID:
			var cube: MeshInstance3D = MeshInstance3D.new()
			cube.mesh = mesh
			cube.material_override = material
			cube.position = Vector3(x * SPACING - offset, 0, z * SPACING - offset)
			add_child(cube)
			cubes.append(cube)

	var camera: Camera3D = Camera3D.new()
	camera.position = Vector3(0, 8, 13)
	add_child(camera)
	camera.look_at(Vector3.ZERO, Vector3.UP)
	camera.current = true


func _process(delta: float) -> void:
	elapsed += delta

	for cube in cubes:
		var wave: float = sin(cube.position.x * 0.8 + elapsed * 2.0) * cos(cube.position.z * 0.8 + elapsed * 1.4)
		cube.position.y = wave * AMPLITUDE


func _add_environment() -> void:
	var sky_material: ProceduralSkyMaterial = ProceduralSkyMaterial.new()
	sky_material.sky_top_color = Color(0.04, 0.05, 0.1)
	sky_material.sky_horizon_color = Color(0.12, 0.14, 0.22)
	sky_material.ground_bottom_color = Color(0.02, 0.02, 0.04)
	sky_material.ground_horizon_color = Color(0.09, 0.1, 0.15)

	var sky: Sky = Sky.new()
	sky.sky_material = sky_material

	var env: Environment = Environment.new()
	env.background_mode = Environment.BG_SKY
	env.sky = sky
	env.ambient_light_source = Environment.AMBIENT_SOURCE_SKY
	env.ambient_light_energy = 0.9

	var world: WorldEnvironment = WorldEnvironment.new()
	world.environment = env
	add_child(world)


func _add_light() -> void:
	var light: DirectionalLight3D = DirectionalLight3D.new()
	light.rotation_degrees = Vector3(-60, -30, 0)
	light.light_energy = 1.1
	add_child(light)