Core menu implementation, work in progress...

chapter/chapter_5.c

@@ -228,6 +228,45 @@ world_t * game_world (number_t width, number_t height, ...) {
 	return (world);
 }
 
+menu_t * game_menu (string_t text, /*number_t width, number_t height, number_t x, number_t y, number_t reorient, number_t override, */...) {
+	menu_t  * menu;
+	va_list   list;
+	menu_t  * item;
+
+	menu = memorize ((number_t) sizeof (* menu));
+
+	string_copy ((menu->text = memorize (string_length (text) + 1)), text);
+
+	menu->scroll     = 0;
+	menu->item_count = 0;
+	menu->items      = NULL;
+
+	//~menu->width      = width;
+	//~menu->height     = height;
+	//~menu->x          = x;
+	//~menu->y          = y;
+	//~menu->reorient   = reorient;
+	//~menu->override   = override;
+
+	//~va_start (list, override);
+	va_start (list, text);
+
+	for (;;) {
+		item = (menu_t *) va_arg (list, void *);
+
+		if (item != NULL) {
+			menu->item_count += 1;
+			//~menu->items = memorize ((number_t) sizeof (item));
+			menu->items = memorize ((number_t) sizeof (* menu->items));
+			menu->items [menu->item_count - 1] = item;
+		} else break;
+	}
+
+	va_end (list);
+
+	return (menu);
+}
+
 procedure_t game_render_attribute (attribute_t * attribute, number_t x, number_t y) {
 	curses_render_string (attribute->name, COLOUR_CYAN, EFFECT_NORMAL, x, y);
 
@@ -266,6 +305,31 @@ procedure_t game_render_world (world_t * world, number_t x, number_t y, number_t
 	}
 }
 
+procedure_t game_render_menu (menu_t * menu, number_t x, number_t y) {
+	number_t item;
+
+	curses_render_string (menu->text, 1, 1, x, y);
+
+	y += 1;
+
+	if (menu->item_count == 0) {
+		return;
+	} else {
+		game_render_menu (menu->items [0], x, y);
+		//~for (item = 0; item != menu->item_count - 1; ++item) {
+			//~game_render_menu (menu->items [item], x, y + item);
+		//~}
+	}
+
+	//~if (menu->item_count == 0) {
+		//~curses_render_string (menu->text, 1, 1, x, y);
+	//~} else {
+		//~for (item = 0; item != menu->item_count; ++item) {
+			//~game_render_menu (menu->items [item], x, y + item);
+		//~}
+	//~}
+}
+
 procedure_t play_game (procedure_t) {
 	generator_t * full_fill      = game_generator (generate_full_fill_function);
 	generator_t * rectangle_fill = game_generator (generate_rectangle_fill_function);
@@ -294,7 +358,21 @@ procedure_t play_game (procedure_t) {
 	world_t * world = game_world (80, 24, full_fill,      0, 0, 0, 0, grass,
 	                                      rectangle_fill, 5, 9, 2, 4, stone_floor,
 	                                      rectangle_line, 5, 9, 2, 4, stone_wall,
-	                                      NULL);
+	                                      0);
+
+	//~menu_t * main_menu = game_menu ("Main Menu", 40, 20, 50, 10, FALSE, FALSE, GAME_MENU_ITEM_BUTTON,
+	                                                                           //~GAME_MENU_ITEM_BUTTON,
+	                                                                           //~GAME_MENU_ITEM_BUTTON,
+	                                                                           //~0);
+
+	menu_t * menu_play    = game_menu ("> Play",    NULL);
+	menu_t * menu_options = game_menu ("> Options", NULL);
+	menu_t * menu_exit    = game_menu ("> Exit",    NULL);
+
+	menu_t * menu_main = game_menu ("Main Menu", menu_play,
+	                                             menu_options,
+	                                             menu_exit,
+	                                             NULL);
 
 	curses_configure ();
 
@@ -319,10 +397,12 @@ procedure_t play_game (procedure_t) {
 		game_render_skill (rune_magic,   2, 12);
 		game_render_skill (charm_magic,  2, 13);
 
-		game_render_world (world, 0, 0, curses_screen_width, curses_screen_height);
+		game_render_world (world, 40, 0, curses_screen_width, curses_screen_height);
 
 		game_render_player (player);
 
+		game_render_menu (menu_main, 120, 0);
+
 		switch (curses_character) {
 			case SIGNAL_ARROW_UP:    player->y -= 1; limit (& player->y, 0, world->height - 1); break;
 			case SIGNAL_ARROW_DOWN:  player->y += 1; limit (& player->y, 0, world->height - 1); break;

chapter/chapter_5.h

@@ -38,6 +38,12 @@ typedef enum action_t {
 	GAME_ACTION_COUNT
 } action_t;
 
+typedef enum menu_item_t {
+	GAME_MENU_ITEM_NONE,
+	GAME_MENU_ITEM_SEPARATOR,               GAME_MENU_ITEM_TEXT,                    GAME_MENU_ITEM_BUTTON,                  GAME_MENU_ITEM_LIST,
+	GAME_MENU_ITEM_COUNT
+} menu_item_t;
+
 typedef struct bundle_t {
 	number_t minimum, maximum, current;
 } bundle_t;
@@ -48,7 +54,8 @@ typedef struct symbol_t {
 
 typedef struct attribute_t {
 	string_t   name;
-	number_t   positive_count, negative_count;
+	number_t   positive_count;
+	number_t   negative_count;
 	bundle_t * points;
 	action_t * positive;
 	action_t * negative;
@@ -56,14 +63,16 @@ typedef struct attribute_t {
 
 typedef struct skill_t {
 	string_t   name;
-	number_t   positive_count, learning_rate;
+	number_t   positive_count;
+	number_t   learning_rate;
 	bundle_t * points;
 	action_t * positive;
 } skill_t;
 
 typedef struct player_t {
 	string_t      name;
-	number_t      x, y;
+	number_t      x;
+	number_t      y;
 	symbol_t    * symbol;
 	//~bundle_t    * health, * armour, * mana, * stamina;
 	//~attribute_t   strength, edurance, intelligence, agility;
@@ -73,15 +82,31 @@ typedef struct player_t {
 
 typedef struct block_t {
 	string_t   name;
-	number_t   collision, override;
+	number_t   collision;
+	number_t   override;
 	symbol_t * symbol;
 } block_t;
 
 typedef struct world_t {
-	number_t     width, height;
+	number_t     width;
+	number_t     height;
 	block_t  * * block;
 } world_t;
 
+typedef struct menu_t {
+	string_t      text;
+	//~number_t      width;
+	//~number_t      height;
+	//~number_t      x;
+	//~number_t      y;
+	//~number_t      reorient;
+	//~number_t      override;
+	number_t      scroll;
+	number_t      item_count;
+	//~menu_item_t * items;
+	struct menu_t * * items;
+} menu_t;
+
 typedef procedure_t (* generate_t) (world_t *, number_t, number_t, number_t, number_t, block_t *);
 
 typedef struct generator_t {
@@ -90,8 +115,8 @@ typedef struct generator_t {
 
 extern memory_t memorize (number_t size);
 
-extern bundle_t   * format_bundle   (number_t minimum, number_t maximum, number_t current);
+extern bundle_t * format_bundle (number_t minimum, number_t maximum, number_t current);
-extern symbol_t   * format_symbol   (number_t character, number_t colour, number_t effect);
+extern symbol_t * format_symbol (number_t character, number_t colour, number_t effect);
 
 extern generator_t * game_generator (generate_t generator);
 extern attribute_t * game_attribute (string_t name, bundle_t * points, ...);
@@ -99,12 +124,14 @@ extern skill_t     * game_skill     (string_t name, bundle_t * points, ...);
 extern player_t    * game_player    (string_t name, symbol_t * symbol);
 extern block_t     * game_block     (string_t name, symbol_t * symbol, number_t collision, number_t override);
 extern world_t     * game_world     (number_t width, number_t height, ...);
+extern menu_t      * game_menu      (string_t text, /*number_t width, number_t height, number_t x, number_t y, number_t reorient, number_t override,*/ ...);
 
 extern procedure_t game_render_attribute (attribute_t * attribute, number_t x, number_t y);
 extern procedure_t game_render_skill     (skill_t * skill, number_t x, number_t y);
 extern procedure_t game_render_player    (player_t * player);
 extern procedure_t game_render_block     (block_t * block, number_t x, number_t y);
 extern procedure_t game_render_world     (world_t * world, number_t x, number_t y, number_t width, number_t height);
+extern procedure_t game_render_menu      (menu_t * menu, number_t x, number_t y);
 
 extern procedure_t play_game (procedure_t);