# File contains global variables or constants so they all are in one place instead
# of a million files. So you can adjust them easily from one place if needed.

extends Node

# world map chunk size
const CHUNK_SIZE:int = 128

# tilemap tile types
enum {TILE_WATER, TILE_TERRAIN, TILE_FOREST, TILE_BOG}

# tilemap layers
enum {LAYER_TERRAIN, LAYER_BUILDINGS}

func are_coords_valid(value:int, bounds:Vector2i, errmsg:String) -> bool:
	if bounds.x > value or value > bounds.y:		
		errmsg = errmsg % [value, bounds.x, bounds.y]
		push_error(errmsg)
		return false
	
	return true
	
func choose_randomly(list_of_entries):
	return list_of_entries[randi() % list_of_entries.size()]

# map size is based on input image x*y pixel size
var map_size:int

# store terrain type (water, land, forest etc. for every map cell)
var map_terrain_data:Array[Array] = [[]]

# preprocess and store exact tile for every map cell to speed up setting tiles
var map_tile_data:Array[Array] = [[]]

# current camera zoom level
var CAMERA_ZOOM_LEVEL: float = 1.0

# FILE PATHS
const SCENE_PATH:String = "res://scenes/"
const ART_PATH:String = "res://art/"
const SCRIPT_PATH:String = "res://scripts"

# NODE NAMES
const WORLD_NODE:String = "World"
const DEBUGINFO_NODE:String = "DebugInfo"
const CONSTRUCTION_PANEL_NODE:String = "ConstructionPanel"

const GUI_BUILD_BUTTON_SIZE_X: int = 50
const GUI_BUILD_BUTTON_SIZE_Y: int = 50
const GUI_BUILD_BUTTON_SIZE: Vector2i =	Vector2i(GUI_BUILD_BUTTON_SIZE_X,GUI_BUILD_BUTTON_SIZE_Y)

# GAME WINDOW DEFAULT SIZE
const DEFAULT_X_RES:int = 1920
const DEFAULT_Y_RES:int = 1080

# maybe should use int for these instead for faster matching?
const TYPE_RESIDENTIAL:String = "residential"
const TYPE_COMMERCIAL:String = "commercial"
const TYPE_INDUSTRIAL:String = "industrial"
const TYPE_SERVICES:String = "services"
const TYPE_SOCIAL:String = "social"
const TYPE_POWERPLANT:String = "powerplant"
const TYPE_ROADS:String = "roads"
const TYPE_DEMOLISH:String = "demolish"

# camera movement settings
const CAMERA_MIN_ZOOM_LEVEL: float = 0.1
const CAMERA_MAX_ZOOM_LEVEL: float = 2.0
const CAMERA_ZOOM_FACTOR: float = 0.1
const CAMERA_ZOOM_DURATION: float = 0.1
const CAMERA_PAN_MULTI:float = 2.0

# city map generation file should have black ground (0,0,0) and white water (1,1,1)
const GROUND_TILE_COLOR_IN_MAP_FILE: Color = Color(0,0,0,1)
const WATER_TILE_COLOR_IN_MAP_FILE: Color = Color(1,1,1,1)

# min and max sizes for a map so the map won't be unreasonably small or large
const MAP_MIN_HEIGHT:int = 128
const MAP_MAX_HEIGHT:int = 4096
const MAP_MIN_WIDTH:int = 128
const MAP_MAX_WIDTH:int = 4096

# tile size
const TILE_SIZE_X:int = 16
const TILE_SIZE_Y:int = 16

# tile dict to tilemap
var td = {
	TILE_WATER: {
		"default": [Vector2i(1,0)]
		},
	TILE_TERRAIN: {
		"default": [Vector2i(0,0)],
		# 4 land tiles around water
		[1,1,1,1]: [Vector2i(0,0)],
		# 3 land tiles around water
		[1,1,1,0]: [Vector2i(0,0)], 
		[1,1,0,1]: [Vector2i(0,0)], 
		[1,0,1,1]: [Vector2i(0,0)], 
		[0,1,1,1]: [Vector2i(0,0)], 
		# 2 land tiles around water		
		[1,1,0,0]: [Vector2i(11,0), Vector2i(12,0)],
		[0,1,1,0]: [Vector2i(7,0), Vector2i(8,0)],
		[0,0,1,1]: [Vector2i(19,0), Vector2i(20,0)],
		[1,0,0,1]: [Vector2i(15,0), Vector2i(16,0)],
			# 1 land tile around water
		[0,0,0,1]: [Vector2i(17,0), Vector2i(18,0)],
		[0,0,1,0]: [Vector2i(5,0), Vector2i(6,0)],
		[0,1,0,0]: [Vector2i(9,0), Vector2i(10,0)],
		[1,0,0,0]: [Vector2i(13,0), Vector2i(14,0)],
		},
	TILE_FOREST: {
		"default": [Vector2i(5,1)],
		# 4 forest tiles around land
		[2,2,2,2]: [Vector2i(5,1)],
		# 3 forest tiles around land
		[2,2,2,1]: [Vector2i(5,1)],
		[2,2,1,2]: [Vector2i(5,1)],
		[2,1,2,2]: [Vector2i(5,1)],
		[1,2,2,2]: [Vector2i(5,1)],
		# 2 forest tiles around land
		[2,2,1,1]: [Vector2i(28,0)],
		[1,2,2,1]: [Vector2i(26,0)],
		[1,1,2,2]: [Vector2i(24,0)],
		[2,1,1,2]: [Vector2i(22,0)],	
		# 1 forest tile around land
		[1,1,1,2]: [Vector2i(23,0)],
		[1,1,2,1]: [Vector2i(25,0)],
		[1,2,1,1]: [Vector2i(27,0)],
		[2,1,1,1]: [Vector2i(29,0)],
		},
	TILE_BOG: {
		"key": [Vector2i(0,0)]
		}
	}

# error messages
const ERROR_BUILDING_TYPE_NOT_SET:String = "Building type not set, while trying to place building."
const ERROR_BUTTON_NOT_FOUND:String = "Button '%s' not found when trying to set it's properties in Control.gd!"
const ERROR_FAILED_TO_LOAD_FILE:String = "Failed to load image with filename: '%s'"
const ERROR_TILE_X_COORDS_OUT_OF_BOUNDS:String = "Trying to build outside the game area: '%s'. Cell should be between '%s-%s'"
const ERROR_TILE_Y_COORDS_OUT_OF_BOUNDS:String = "Trying to build outside the game area: y is: '%s'. Cell should be between '%s-%s'"
const ERROR_IMAGE_WIDTH_INCORRECT:String = "Provided map image width '%s' too small or too large. Width should be between: '%s-%s'"
const ERROR_IMAGE_HEIGHT_INCORRECT:String = "Provided map image height '%s' too small or too large. Height should be between: '%s-%s'"
const ERROR_MAKING_WORLD_INSTANCE:String = "Error while making an instance of World node."
const ERROR_WHILE_GENERATING_MAP:String = "Error in generating the map. Game won't start."
const ERROR_WORLD_TILEMAP_NODE_MISSING:String = "World TileMap node missing or name is wrong. Tried to load: '%s'"