extends Node

enum BlockType {
	AIR = 0,
	WATER = 1,
	SAND = 2,
	ROCK = 3,
	CORAL_RED = 4,
	CORAL_BLUE = 5,
	KELP = 6,
	WRECK_WOOD = 7,
	ICE = 8,
	BEDROCK = 9,
	GLOW_CORAL_CYAN = 10,
	GLOW_CORAL_VIOLET = 11,
	LAVA_VENT = 12
}

# Atlas is 4x4 tiles, each tile = 0.25 of atlas width/height
const ATLAS_TILE_SIZE: Vector2 = Vector2(0.25, 0.25)

const _BLOCKS: Dictionary = {
	BlockType.AIR: {
		"name": "Air",
		"color": Color(0.0, 0.0, 0.0, 0.0),
		"hardness": 0.0,
		"drops": [],
		"atlas_uv": Vector2(0.0, 0.0)  # unused, AIR not rendered
	},
	BlockType.WATER: {
		"name": "Eau",
		"color": Color(0.1, 0.4, 0.8, 0.6),
		"hardness": 0.0,
		"drops": [],
		"atlas_uv": Vector2(0.0, 0.0)  # unused, WATER not solid
	},
	BlockType.SAND: {
		"name": "Sable",
		"color": Color(0.76, 0.70, 0.50, 1.0),
		"hardness": 0.5,
		"drops": [BlockType.SAND],
		"atlas_uv": Vector2(0.0, 0.0)   # row 0, col 0
	},
	BlockType.ROCK: {
		"name": "Roche",
		"color": Color(0.45, 0.45, 0.45, 1.0),
		"hardness": 2.0,
		"drops": [BlockType.ROCK],
		"atlas_uv": Vector2(0.25, 0.0)  # row 0, col 1
	},
	BlockType.CORAL_RED: {
		"name": "Corail Rouge",
		"color": Color(0.90, 0.25, 0.20, 1.0),
		"hardness": 0.3,
		"drops": [BlockType.CORAL_RED],
		"atlas_uv": Vector2(0.5, 0.0)   # row 0, col 2
	},
	BlockType.CORAL_BLUE: {
		"name": "Corail Bleu",
		"color": Color(0.20, 0.50, 0.95, 1.0),
		"hardness": 0.3,
		"drops": [BlockType.CORAL_BLUE],
		"atlas_uv": Vector2(0.75, 0.0)  # row 0, col 3
	},
	BlockType.KELP: {
		"name": "Algue",
		"color": Color(0.15, 0.60, 0.20, 1.0),
		"hardness": 0.1,
		"drops": [BlockType.KELP],
		"atlas_uv": Vector2(0.0, 0.25)  # row 1, col 0
	},
	BlockType.WRECK_WOOD: {
		"name": "Bois d'Épave",
		"color": Color(0.35, 0.22, 0.12, 1.0),
		"hardness": 1.0,
		"drops": [BlockType.WRECK_WOOD],
		"atlas_uv": Vector2(0.25, 0.25) # row 1, col 1
	},
	BlockType.ICE: {
		"name": "Glace",
		"color": Color(0.75, 0.90, 1.0, 0.85),
		"hardness": 0.8,
		"drops": [],
		"atlas_uv": Vector2(0.5, 0.25)  # row 1, col 2
	},
	BlockType.BEDROCK: {
		"name": "Bedrock",
		"color": Color(0.15, 0.15, 0.15, 1.0),
		"hardness": -1.0,
		"drops": [],
		"atlas_uv": Vector2(0.75, 0.25) # row 1, col 3
	},
	BlockType.GLOW_CORAL_CYAN: {
		"name": "Corail Bio Cyan",
		"color": Color(0.2, 0.8, 1.0, 1.0),
		"hardness": 0.3,
		"drops": [BlockType.GLOW_CORAL_CYAN],
		"atlas_uv": Vector2(0.0, 0.5),   # row 2, col 0
		"emission": Color(0.2, 0.8, 1.0),
		"emission_energy": 3.0
	},
	BlockType.GLOW_CORAL_VIOLET: {
		"name": "Corail Bio Violet",
		"color": Color(0.7, 0.3, 0.9, 1.0),
		"hardness": 0.3,
		"drops": [BlockType.GLOW_CORAL_VIOLET],
		"atlas_uv": Vector2(0.25, 0.5),  # row 2, col 1
		"emission": Color(0.7, 0.3, 0.9),
		"emission_energy": 3.0
	},
	BlockType.LAVA_VENT: {
		"name": "Cheminée Hydrothermale",
		"color": Color(1.0, 0.5, 0.1, 1.0),
		"hardness": 3.0,
		"drops": [BlockType.LAVA_VENT],
		"atlas_uv": Vector2(0.5, 0.5),   # row 2, col 2
		"emission": Color(1.0, 0.5, 0.1),
		"emission_energy": 3.0
	}
}

func get_atlas_uv(id: int) -> Vector2:
	if _BLOCKS.has(id):
		return _BLOCKS[id]["atlas_uv"]
	return Vector2(0.0, 0.0)

func is_solid(id: int) -> bool:
	if id == BlockType.AIR or id == BlockType.WATER or id == BlockType.KELP:
		return false
	return true

func get_color(id: int) -> Color:
	if _BLOCKS.has(id):
		return _BLOCKS[id]["color"]
	return Color(1.0, 0.0, 1.0, 1.0)

func get_block_name(id: int) -> String:
	if _BLOCKS.has(id):
		return _BLOCKS[id]["name"]
	return "Unknown"

func get_hardness(id: int) -> float:
	if _BLOCKS.has(id):
		return _BLOCKS[id]["hardness"]
	return 1.0

func get_drops(id: int) -> Array:
	if _BLOCKS.has(id):
		return _BLOCKS[id]["drops"]
	return []

func is_emissive(id: int) -> bool:
	if _BLOCKS.has(id):
		return _BLOCKS[id].has("emission")
	return false

func get_emission_color(id: int) -> Color:
	if _BLOCKS.has(id) and _BLOCKS[id].has("emission"):
		return _BLOCKS[id]["emission"]
	return Color(0.0, 0.0, 0.0)

func get_emission_energy(id: int) -> float:
	if _BLOCKS.has(id) and _BLOCKS[id].has("emission_energy"):
		return _BLOCKS[id]["emission_energy"]
	return 1.0