tool
extends Continent

export(PackedScene) var dungeon_teleporter : PackedScene
export(PropData) var prop_tree : PropData
export(PropData) var prop_tree2 : PropData

var voxel_scale : float = 1
var current_seed : int = 0

func get_editor_rect_border_color() -> Color:
	return Color(0.8, 0.8, 0.8, 1)

func get_editor_rect_color() -> Color:
	return Color(0.8, 0.8, 0.8, 0.9)

func get_editor_rect_border_size() -> int:
	return 2

func get_editor_font_color() -> Color:
	return Color(0, 0, 0, 1)

func get_editor_class() -> String:
	return "TestContinent"

func get_editor_additional_text() -> String:
	return "TestContinent"
	
func _setup_terra_library(library : TerramanLibrary, pseed : int) -> void:
	pass

func _generate_terra_chunk(chunk: TerraChunk, pseed : int, spawn_mobs: bool) -> void:
	voxel_scale = chunk.voxel_scale
	current_seed = pseed

#		#todo generate this properly
#		var entrance_position : Vector3 = Vector3(7, 5, 7)
#
#		for i in range(get_building_count()):
#			var d : Building = get_building(i)
#
#			if d.has_method("has_entrance_position"):
#				d.entrance_position.origin = entrance_position
#
#				entrance_position = d.next_level_teleporter_position_data_space
#				entrance_position *= voxel_scale

	var cx : int = chunk.get_position_x()
	var cz : int = chunk.get_position_z()
	
	var chunk_seed : int = 123 + (cx * 231) + (cz * 123)

	var rng : RandomNumberGenerator = RandomNumberGenerator.new()
	rng.seed = chunk_seed
	
	#terrarin_gen.generate_simple_terrarin(chunk, spawn_mobs)
	gen_terra_chunk(chunk, rng)
	
	if chunk.position_x == 0 && chunk.position_z == 0:
		#test
		spawn_dungeon(chunk, chunk_seed, spawn_mobs)
	else:
		if rng.randi() % 10 == 0:
			spawn_dungeon(chunk, chunk_seed, spawn_mobs)
	
#	for i in range(get_building_count()):
#		get_building(i).generate_terra_chunk(chunk, spawn_mobs)

	if not Engine.editor_hint and spawn_mobs and rng.randi() % 4 == 0:
		var level : int = 1
		
		if chunk.get_voxel_world().has_method("get_mob_level"):
			level  = chunk.get_voxel_world().get_mob_level()

		ESS.entity_spawner.spawn_mob(0, level, \
					Vector3(chunk.position_x * chunk.size_x * chunk.voxel_scale + chunk.size_x / 2,\
							100, \
							chunk.position_z * chunk.size_z * chunk.voxel_scale + chunk.size_z / 2))

func gen_terra_chunk(chunk: TerraChunk, rng : RandomNumberGenerator) -> void:
	chunk.channel_ensure_allocated(TerraChunkDefault.DEFAULT_CHANNEL_TYPE, 1)
	chunk.channel_ensure_allocated(TerraChunkDefault.DEFAULT_CHANNEL_ISOLEVEL, 0)
	
	var s : FastNoise = FastNoise.new()
	s.set_noise_type(FastNoise.TYPE_SIMPLEX)
	s.set_seed(current_seed)
	
	var sdet : FastNoise = FastNoise.new()
	sdet.set_noise_type(FastNoise.TYPE_SIMPLEX)
	sdet.set_seed(current_seed)
	
	for x in range(-chunk.margin_start, chunk.size_x + chunk.margin_end):
		for z in range(-chunk.margin_start, chunk.size_x + chunk.margin_end):
			var vx : int = x + (chunk.position_x * chunk.size_x)
			var vz : int = z + (chunk.position_z * chunk.size_z)
			
			var val : float = (s.get_noise_2d(vx * 0.05, vz * 0.05) + 2)
			val *= val
			val *= 20.0
			val += abs(sdet.get_noise_2d(vx * 0.8, vz * 0.8)) * 20

			chunk.set_voxel(val, x, z, TerraChunkDefault.DEFAULT_CHANNEL_ISOLEVEL)

			if val < 50:
				chunk.set_voxel(2, x, z, TerraChunkDefault.DEFAULT_CHANNEL_TYPE)
			elif val > 90:
				chunk.set_voxel(4, x, z, TerraChunkDefault.DEFAULT_CHANNEL_TYPE)
			else:
				if chunk.position_x == 0 && chunk.position_z == 0:
					continue
					
				if rng.randf() > 0.992:
					var tr : Transform = Transform()
					
					tr = tr.rotated(Vector3(0, 1, 0), rng.randf() * PI)
					tr = tr.rotated(Vector3(1, 0, 0), rng.randf() * 0.2 - 0.1)
					tr = tr.rotated(Vector3(0, 0, 1), rng.randf() * 0.2 - 0.1)
					tr = tr.scaled(Vector3(0.9 + rng.randf() * 0.2, 0.9 + rng.randf() * 0.2, 0.9 + rng.randf() * 0.2))
					tr.origin = Vector3((x + chunk.position_x * chunk.size_x), ((val - 2) / 255.0) * chunk.world_height, (z + chunk.position_z * chunk.size_z))

					chunk.voxel_world.prop_add(tr, prop_tree)

#					Uncomment to test the prop texture merger system:
#					if randf() > 0.5:
#						chunk.voxel_world.prop_add(tr, prop_tree)
#					else:
#						chunk.voxel_world.prop_add(tr, prop_tree2)
		

func spawn_dungeon(chunk: TerraChunk, dungeon_seed : int, spawn_mobs : bool) -> void:
	var x : float = chunk.position_x * chunk.voxel_scale * chunk.size_x
	var z : float = chunk.position_z * chunk.voxel_scale * chunk.size_z
	
	var vh : int = chunk.get_voxel(6, 6, TerraChunkDefault.DEFAULT_CHANNEL_ISOLEVEL)
	var vwh : float = chunk.get_voxel_scale() * chunk.get_world_height() * (vh / 256.0)
	
	var dt : Spatial = dungeon_teleporter.instance()
	chunk.voxel_world.add_child(dt)
	dt.owner_chunk = chunk
	
	var level : int = 2
		
	if chunk.get_voxel_world().has_method("get_mob_level"):
		level  = chunk.get_voxel_world().get_mob_level()
	
	dt.min_level = level - 1
	dt.max_level = level + 1
	dt.dungeon_seed = dungeon_seed
	dt.spawn_mobs = spawn_mobs
	dt.transform = Transform(Basis().scaled(Vector3(chunk.voxel_scale, chunk.voxel_scale, chunk.voxel_scale)), Vector3(x, vwh, z))