umorna/source/menu.c

#include "core.h"
#include "game.h"
//~#include "engine.h"
#include "render.h"
#include "menu.h"

int define_menu_item (int     menu,
                      char  * text,
                      int     icon,
                      void (* action) (void)) {
	menu_text   [menu] [menu_items [menu]] = text;
	menu_icon   [menu] [menu_items [menu]] = icon;
	menu_action [menu] [menu_items [menu]] = action;

	return (menu_items [menu]++);
}

int define_menu (int alpha) {
	menu_items [menu_count] = 0;
	menu_show  [menu_count] = 0;
	menu_alpha [menu_count] = alpha;

	return (menu_count++);
}

void render_menu_item (int menu, int item, int x, int y) {
	int u = (menu_icon [menu] [item] / 10) * ICON_SIZE;
	int v = (menu_icon [menu] [item] % 10) * ICON_SIZE;

	render_sprite (u, v, ICON_SIZE, ICON_SIZE, x, y + item * ICON_SIZE);
	render_string (menu_text [menu] [item], x + ICON_SIZE, y + item * ICON_SIZE);
}

void render_menu (int menu, int align, int x, int y) {
	int item;

	int u = (int) strlen (menu_text [menu] [0]) * ICON_SIZE;
	int v = menu_items [menu] * ICON_SIZE;

	if (menu_show [menu] == 0) {
		return;
	}

	if (menu_alpha [menu] != 0) {
		DrawRectangle (x, y, u, v, BLACK);
	}

	for (item = 0; item < menu_items [menu]; ++item) {
		if (align == 0) {
			render_menu_item (menu, item, x, y);
		} else {
			render_menu_item (menu, item, (GetScreenWidth  () - u) / 2, (GetScreenHeight () - v) / 2);
		}
	}
}

void menu_configure (void) {
	int index;

	menu_traits    = define_menu (1);
	menu_skills    = define_menu (1);
	menu_values    = define_menu (1);
	menu_resources = define_menu (0);

	for (index = 0; index < chad_trait_count; ++index) {
		(void) define_menu_item (menu_traits, chad_trait_name [index], index, 0);
	}

	for (index = 0; index < chad_skill_count; ++index) {
		(void) define_menu_item (menu_skills, chad_skill_name [index], 3 + index, 0);
	}

	for (index = 0; index < chad_value_count; ++index) {
		(void) define_menu_item (menu_values, chad_value_name [index], 27 + index, 0);
	}

	(void) define_menu_item (menu_resources, "ABC", 1, 0);
	(void) define_menu_item (menu_resources, "DEF", 1, 0);
	(void) define_menu_item (menu_resources, "GHI", 1, 0);
}

int menu_count = 0;

int menu_items [24];
int menu_show  [24];
int menu_alpha [24];

char  * menu_text   [24] [24];
int     menu_icon   [24] [24];
void (* menu_action [24] [24]) (void);

int menu_traits, menu_skills, menu_values, menu_resources;