-- Copyright (c) 2024 - Ognjen 'xolatile' Milan Robovic
--
-- GNU General Public Licence (version 3 or later)

with core, item, unit, construction;

package world is

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	type biome is (
		ash,                    sand,                   grass,                  rough,                  snow,                   swamp
	);

                                             ------------------------------------------------------------------------------------------

	type landmark_index is (
		dead_tree,              mossy_rock,             palm_tree,              pine_tree,              pine_forest,            reeds,
		rock,                   snowed_pine_tree,       snowed_rock,            spiky_rock
	);

	type landmark_trait is record
		spawn  : biome;
		clip   : boolean;
		frames : integer;
	end record;

	type entity_trait is record
		index : natural;
		x, y  : integer;
	end record;

	type tile_array   is array (natural range <>, natural range <>) of integer;
	type clip_array   is array (natural range <>, natural range <>) of boolean;
	type view_array   is array (natural range <>, natural range <>) of boolean;
	type entity_array is array (natural range <>)                   of entity_trait;

	type information is record
		kind          :        biome;
		width         :        natural;
		height        :        natural;
		tiles         : access tile_array;
		clips         : access clip_array;
		views         : access view_array;
		landmarks     : access entity_array;
		constructions : access entity_array;
		items         : access entity_array;
	end record;

                                             ------------------------------------------------------------------------------------------

	tiles     :                           core.sprite;
	landmarks : array (landmark_index) of core.sprite;

	landmark_limit : constant integer := 120;

	trait : constant array (landmark_index) of landmark_trait := (
		dead_tree        => (ash,   true,  1),
		mossy_rock       => (swamp, true,  1),
		palm_tree        => (sand,  true,  4),
		pine_tree        => (grass, true,  4),
		pine_forest      => (grass, true,  4),
		reeds            => (swamp, false, 4),
		rock             => (sand,  true,  1),
		snowed_pine_tree => (snow,  true,  4),
		snowed_rock      => (snow,  true,  1),
		spiky_rock       => (ash,   true,  1)
	);

	map : information;

                                             ------------------------------------------------------------------------------------------

	procedure configure;

	procedure make (index : in biome; width, height : in natural);

	procedure draw;
	procedure view;

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end world;