## Data class for tetromino shape definitions in 3D space.
##
## Stores shape geometry, combat stats, synergy tags, and cost information.
## Designed to be saved as a Resource (.tres file) for easy editor configuration.
class_name TetrominoDefinition
extends Resource

enum ShapeType { I, O, T, S, Z, L, J }

## Shape type identifier
@export var shape_type: ShapeType = ShapeType.I

## Base damage output per shot
@export var base_damage: int = 10

## Fire rate in shots per second
@export var fire_rate: float = 1.0

## Gold cost to place this tetromino
@export var base_cost: int = 50

## Synergy tags for combination effects (e.g., ["fire", "ice"])
@export var synergy_tags: PackedStringArray = []

## 3D mesh color/tint for visual distinction
@export var mesh_color: Color = Color.WHITE

## Pre-built 3D mesh for this tetromino
@export var mesh: Mesh

## Detection radius for 3D adjacency synergies
@export var synergy_radius: float = 2.5

## 3D grid cells relative to anchor point
var grid_cells: PackedVector3Array = []

func _init(p_shape_type: ShapeType = ShapeType.I) -> void:
	shape_type = p_shape_type
	_initialize_default_shape()


## Initialize default grid cells based on shape type (Tetris standard)
func _initialize_default_shape() -> void:
	match shape_type:
		ShapeType.I:
			# I-piece: 4 in a row
			grid_cells = [Vector3i.ZERO, Vector3i.RIGHT, Vector3i.RIGHT * 2, Vector3i.RIGHT * 3]
			mesh_color = Color.CYAN
			base_damage = 8
			fire_rate = 0.8
		
		ShapeType.O:
			# O-piece: 2x2 square
			grid_cells = [Vector3i.ZERO, Vector3i.RIGHT, Vector3i.FORWARD, Vector3i.RIGHT + Vector3i.FORWARD]
			mesh_color = Color.YELLOW
			base_damage = 12
			fire_rate = 1.2
		
		ShapeType.T:
			# T-piece: T-shape
			grid_cells = [Vector3i.ZERO, Vector3i.LEFT, Vector3i.RIGHT, Vector3i.FORWARD]
			mesh_color = Color.MAGENTA
			base_damage = 10
			fire_rate = 1.0
		
		ShapeType.S:
			# S-piece: Zigzag
			grid_cells = [Vector3i.ZERO, Vector3i.RIGHT, Vector3i.FORWARD, Vector3i.LEFT + Vector3i.FORWARD]
			mesh_color = Color.GREEN
			base_damage = 9
			fire_rate = 0.9
		
		ShapeType.Z:
			# Z-piece: Reverse zigzag
			grid_cells = [Vector3i.ZERO, Vector3i.LEFT, Vector3i.FORWARD, Vector3i.RIGHT + Vector3i.FORWARD]
			mesh_color = Color.RED
			base_damage = 9
			fire_rate = 0.9
		
		ShapeType.L:
			# L-piece: L-shape
			grid_cells = [Vector3i.ZERO, Vector3i.LEFT, Vector3i.FORWARD, Vector3i.LEFT + Vector3i.FORWARD]
			mesh_color = Color.ORANGE
			base_damage = 11
			fire_rate = 1.1
		
		ShapeType.J:
			# J-piece: Reverse L-shape
			grid_cells = [Vector3i.ZERO, Vector3i.RIGHT, Vector3i.FORWARD, Vector3i.RIGHT + Vector3i.FORWARD]
			mesh_color = Color.BLUE
			base_damage = 11
			fire_rate = 1.1


## Get the display name of this tetromino
func get_display_name() -> String:
	match shape_type:
		ShapeType.I:
			return "I"
		ShapeType.O:
			return "O"
		ShapeType.T:
			return "T"
		ShapeType.S:
			return "S"
		ShapeType.Z:
			return "Z"
		ShapeType.L:
			return "L"
		ShapeType.J:
			return "J"
	
	return "Invalid"


## Get all synergy tags as a formatted string
func get_synergy_string() -> String:
	return ", ".join(synergy_tags)


## Check if this tetromino has a specific synergy tag
func has_synergy_tag(tag: StringName) -> bool:
	return tag in synergy_tags