extends Spatial

var rng = RandomNumberGenerator.new()
var chunk_size = 32
var chunk_amount = 16
var chunks = {}
var unready_chunks = {}
var thread

func _ready():
	Global.print_debug("On ajoute le monde")
	add_world()
	Global.print_debug("On ajoute les arbres")
	add_trees()
	Global.print_debug("Le monde est prêt")

func add_world():
	var terrain_mesh = TerrainMesh.new()
	terrain_mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, Global.array_mesh, [], Mesh.ARRAY_COMPRESS_DEFAULT ^ Mesh.ARRAY_FLAG_USE_OCTAHEDRAL_COMPRESSION)
	
	terrain_mesh.surface_set_material(0, load("res://world/materials/world.material"))

	var mi := MeshInstance.new()
	mi.mesh = terrain_mesh
	mi.create_trimesh_collision()

	add_child(mi)

func add_trees():
	rng.randomize()
	var treescene = load("res://entities/environment/birchtree/birchtree.tscn")
	var poisson_disc_sampling: PoissonDiscSampling = PoissonDiscSampling.new()
	
	for center in Global.terrain.get_centers():
		var num = rng.randi_range(0,100)
		if center.get_data("forest") or num == 1:
				var points2d = poisson_disc_sampling.generate_points(3, center.polygon(), 2)
				for point in points2d:
					var tree = treescene.instance()
					var scaling = rng.randi_range(0.8, 1.2)
					tree.scale = Vector3(scaling, scaling, scaling)
					tree.rotate_y(rng.randi_range(0, 2*PI))
					tree.translation = Vector3(point.x, center.get_elevation() * 120, point.y)
					add_child(tree)