xhads/source/main.adb

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

pragma ada_2012;

with core, ui, effect, attribute, skill, resource, faction, might, magic, item, unit, construction, chad, world, ai;

procedure main is

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

	side_panel      : integer := 0;
	preview_width   : integer := 0;
	preview_height  : integer := 0;
	text_box_height : integer := 0;

	player : chad.information := chad.trait (chad.ognjen);

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

	type screen_view is (
		map_preview_panel,      status_preview_panel,   text_box_panel
	);

	screen_view_icon : array (screen_view) of core.sprite;

	screen_view_list : array (screen_view) of boolean := (others => true);

	screen_view_text : array (screen_view) of core.long_string := (
		"Toggle map preview panel.                                               ",
		"Toggle status preview panel.                                            ",
		"Toggle text box panel.                                                  "
	);

	procedure toggle_map_preview_panel    is begin screen_view_list (map_preview_panel)    := (if screen_view_list (map_preview_panel)    then false else true); end toggle_map_preview_panel;
	procedure toggle_status_preview_panel is begin screen_view_list (status_preview_panel) := (if screen_view_list (status_preview_panel) then false else true); end toggle_status_preview_panel;
	procedure toggle_text_box_panel       is begin screen_view_list (text_box_panel)       := (if screen_view_list (text_box_panel)       then false else true); end toggle_text_box_panel;

	screen_view_show : array (screen_view) of access procedure := (
		toggle_map_preview_panel'access,
		toggle_status_preview_panel'access,
		toggle_text_box_panel'access
	);

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

	-- TODO: This menu code is now useless due to new UI code.

	type menu_index is (
		menu_none, menu_attribute, menu_skill, menu_resource, menu_unit, menu_might, menu_magic
	);

	menu_limit : constant integer := 3;
	menu_count :          integer := 0;

	menu_stack : array (1 .. menu_limit) of menu_index := (others => menu_none);

	procedure menu_insert (index : in menu_index) is
	begin
		if menu_count = menu_limit then return; end if;
		--
		menu_count := menu_count mod menu_limit + 1;
		--
		menu_stack (menu_count) := index;
	end menu_insert;

	procedure menu_remove is
	begin
		if menu_count = 0 then return; end if;
		--
		menu_stack (menu_count) := menu_none;
		--
		menu_count := menu_count - 1;
	end menu_remove;

	procedure menu_render is
	begin
		--~if menu_count > 0 then
			--~core.overlay; THIS SLOWS DOWN RENDERING BY 10 FRAMES!
		--~end if;
		--
		for index in 1 .. menu_limit loop
			case menu_stack (index) is
				when menu_none      => null;
				when menu_attribute => attribute.menu (100, 100, false);
				when menu_skill     => skill.menu     (200, 200, false);
				when menu_resource  => resource.menu  (300, 300, false);
				when menu_unit      => unit.menu      (0,   0,   true);
				when menu_might     => might.menu     (0,   0,   true);
				when menu_magic     => magic.menu     (0,   0,   true);
			end case;
		end loop;
	end menu_render;

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

	-- TODO: Also useless, delete later...

	procedure show_attribute_menu is begin menu_insert (menu_attribute);                                     end show_attribute_menu;
	procedure show_skill_menu     is begin menu_insert (menu_skill);                                         end show_skill_menu;
	procedure show_resource_menu  is begin menu_insert (menu_resource);                                      end show_resource_menu;
	procedure show_unit_menu      is begin menu_insert (menu_unit);                                          end show_unit_menu;
	procedure show_might_menu     is begin menu_insert (menu_might);                                         end show_might_menu;
	procedure show_magic_menu     is begin menu_insert (menu_magic);                                         end show_magic_menu;
	procedure ui_main_style       is begin ui.active := ui.style'val ((ui.style'pos (ui.active) + 1) mod 7); end ui_main_style;
	procedure hide_top_menu       is begin menu_remove;                                                      end hide_top_menu;
	procedure zoom_in             is begin core.zoom := 2;                                                   end zoom_in;
	procedure zoom_out            is begin core.zoom := 1;                                                   end zoom_out;

	-- TODO: This is fine.

	signal_list : constant array (core.signal_code) of access procedure := (
		core.signal_up          => core.move_camera_up'access,
		core.signal_down        => core.move_camera_down'access,
		core.signal_left        => core.move_camera_left'access,
		core.signal_right       => core.move_camera_right'access,
		core.signal_a           => show_attribute_menu'access,
		core.signal_s           => show_skill_menu'access,
		core.signal_r           => show_resource_menu'access,
		core.signal_u           => show_unit_menu'access,
		core.signal_m           => show_might_menu'access,
		core.signal_n           => show_magic_menu'access,
		core.signal_v           => ui_main_style'access,
		core.signal_grave       => hide_top_menu'access,
		core.signal_kp_add      => zoom_in'access,
		core.signal_kp_subtract => zoom_out'access,
		others                  => core.idle'access
	);

	a, b, c : core.sprite;

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

begin

	core.dash;
	core.echo (core.comment, "Copyright (C) 2024 -- Ognjen 'xolatile' Milan Robovic");
	core.echo (core.comment, "Version -- 1.0.0");
	core.echo (core.comment, "License -- GNU/GPLv3+");
	core.echo (core.comment, "Xhads is free software, you can redistribute it and modify it under the terms of the GNU General Public License by Free Software Foundation.");
	core.dash;

	core.initialize;

	ui.configure;

	core.play (core.import_song (core.c_string ("./song/main_menu.ogg")).index);

	attribute.configure;
	skill.configure;
	resource.configure;
	--~might.configure;
	--~magic.configure;
	item.configure;
	unit.configure;
	construction.configure;
	chad.configure;
	world.configure;
	ai.configure;

	world.make (world.grass, 140, 120);

	core.dash;
	core.echo (core.success, "Successfully initialized game data, entering main gameplay loop.");
	core.dash;

	for index in screen_view loop
		screen_view_icon (index) := core.import_sprite ("./sprite/ui/icon/" & core.lowercase (screen_view'image (index)) & ".png", 1, 1);
	end loop;

	a := core.import_sprite ("./sprite/magic/fire/fireball.png", 1, 1);
	b := core.import_sprite ("./sprite/magic/light/heal.png", 1, 1);
	c := core.import_sprite ("./sprite/magic/dark/torment.png", 1, 1);

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

	gameplay: loop
		core.synchronize;
		--
		exit when core.engine_active = false;
		--
		side_panel      := core.window_width / 4;
		preview_width   := core.window_width  - side_panel;
		preview_height  := core.window_height - text_box_height;
		text_box_height := 32;
		--
		core.camera.x := core.clip (core.camera.x, 0, world.map.width  - 1);
		core.camera.y := core.clip (core.camera.y, 0, world.map.height - 1);
		--
		world.draw;
		--
		if screen_view_list (map_preview_panel)    then ui.draw_menu      (0,             0, preview_width, preview_height); end if;
		if screen_view_list (status_preview_panel) then ui.draw_tiny_menu (preview_width, 0, side_panel,    preview_height); end if;
		if screen_view_list (status_preview_panel) then ui.draw_state_box (preview_width + 32, 32); end if;
		if screen_view_list (text_box_panel)       then ui.draw_help_box  (0, core.window_height - text_box_height, core.window_width - core.icon * (screen_view'pos (screen_view'last) + 1), text_box_height); end if;
		for index in screen_view loop
			ui.draw_icon (screen_view_icon (index), screen_view_text (index),
			core.window_width - core.icon * (screen_view'pos (screen_view'last) + 1) + core.icon * screen_view'pos (index),
			core.window_height - text_box_height,
			screen_view_show (index));
		end loop;
		--
		signal_list (core.signal_code'val (core.signal_mode)).all;
		--
		--~magic.menu (0, 0, true);
		--~might.menu (0, 0, true);
		--
		--~ui.draw_menu      (60,  60, 256, 256);
		--~ui.draw_tiny_menu (360, 60, 256, 256);
		--
		menu_render;
		--
		core.draw (a, 64*1, core.window_height - 56 - 64);
		core.draw (b, 64*2, core.window_height - 56 - 64);
		core.draw (c, 64*3, core.window_height - 56 - 64);
		ui.draw_icon_menu ("", 64*1, core.window_height - 56 - 64, 64, 64, null);
		ui.draw_icon_menu ("", 64*2, core.window_height - 56 - 64, 64, 64, null);
		ui.draw_icon_menu ("", 64*3, core.window_height - 56 - 64, 64, 64, null);
		ui.draw_fill_bar (64*4, core.window_height - 56, 320, 0.7);
		--
		chad.draw_alice;
		--
		ui.synchronize;
	end loop gameplay;

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

	core.deinitialize;

	core.dash;

end main;