--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libmlk-adventure/adventure/state/mainmenu.c	Sat Nov 28 22:37:30 2020 +0100
@@ -0,0 +1,225 @@
+/*
+ * mainmenu.c -- game main menu
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <core/alloc.h>
+#include <core/event.h>
+#include <core/font.h>
+#include <core/game.h>
+#include <core/image.h>
+#include <core/painter.h>
+#include <core/panic.h>
+#include <core/state.h>
+#include <core/texture.h>
+#include <core/util.h>
+#include <core/window.h>
+
+#include <ui/align.h>
+#include <ui/label.h>
+#include <ui/theme.h>
+
+#include <assets/fonts/teutonic.h>
+#include <assets/fonts/pirata-one.h>
+
+#include "adventure_p.h"
+#include "mainmenu.h"
+#include "molko.h"
+
+struct mainmenu {
+	struct {
+		struct texture tex;
+		int x;
+		int y;
+	} texts[4];
+
+	unsigned int itemsel;           /* Selected item. */
+};
+
+static void
+new(void)
+{
+	/* TODO: implement here. */
+	if (!map_file_open(&molko.map_file, &molko.map, DIRECTORY "/maps/overworld.map"))
+		panic();
+
+	/* Put a sprite. */
+	if (!image_open(&molko.map_player_texture, DIRECTORY "/sprites/john.png"))
+		panic();
+
+	sprite_init(&molko.map_player_sprite, &molko.map_player_texture, 48, 48);
+	molko.map.player_sprite = &molko.map_player_sprite;
+
+	if (!map_init(&molko.map))
+		panic();
+
+	game_switch(&molko.states[MOLKO_STATE_MAP], false);
+}
+
+static void
+resume(void)
+{
+	/* TODO: implement here. */
+}
+
+static void
+quit(void)
+{
+	game_quit();
+}
+
+static void
+perform(struct mainmenu *main)
+{
+	assert(main->itemsel < 3);
+
+	static void (*handlers[])(void) = {
+		[0] = new,
+		[1] = resume,
+		[2] = quit
+	};
+
+	handlers[main->itemsel]();
+}
+
+static void
+init_title(struct mainmenu *main, struct font *font)
+{
+	if (!font_render(font, &main->texts[3].tex, "Molko's Adventure", 0x000000ff))
+		panic();
+	
+	/* Align header. */
+	align(ALIGN_CENTER, &main->texts[3].x, NULL, main->texts[3].tex.w, main->texts[3].tex.h,
+	    0, 0, window.w, window.h);
+
+	main->texts[3].y = main->texts[3].x;
+}
+
+static void
+init_items(struct mainmenu *main, struct font *font)
+{
+	if (!font_render(font, &main->texts[0].tex, _("New"), 0x000000ff) ||
+	    !font_render(font, &main->texts[1].tex, _("Continue"), 0x000000ff) ||
+	    !font_render(font, &main->texts[2].tex, _("Quit"), 0x000000ff))
+		panic();
+
+	main->texts[0].x = (window.w / 2) - (main->texts[0].tex.w / 2);
+	main->texts[0].y = window.h * 0.75;
+
+	main->texts[1].x = main->texts[0].x;
+	main->texts[1].y = main->texts[0].y + main->texts[0].tex.h;
+
+	main->texts[2].x = main->texts[0].x;
+	main->texts[2].y = main->texts[1].y + main->texts[1].tex.h;
+}
+
+static void
+start(struct state *state)
+{
+	struct mainmenu *main;
+	struct font fonts[2];
+
+	/* Allocate the main menu data. */
+	main = (state->data = alloc_new0(sizeof (*main)));
+
+	if (!font_openmem(&fonts[0], fonts_teutonic, sizeof (fonts_teutonic), 130) ||
+	    !font_openmem(&fonts[1], fonts_pirata_one, sizeof (fonts_pirata_one), 30))
+		panic();
+
+	fonts[0].style = fonts[1].style = FONT_STYLE_ANTIALIASED;
+
+	init_title(main, &fonts[0]);
+	init_items(main, &fonts[1]);
+
+	font_finish(&fonts[0]);
+	font_finish(&fonts[1]);
+}
+
+static void
+handle(struct state *state, const union event *event)
+{
+	struct mainmenu *main = state->data;
+
+	switch (event->type) {
+	case EVENT_KEYDOWN:
+		switch (event->key.key) {
+		case KEY_UP:
+			main->itemsel = main->itemsel == 0 ? 2 : main->itemsel - 1;
+			break;
+		case KEY_DOWN:
+			main->itemsel = (main->itemsel + 1) % 3;
+			break;
+		case KEY_ENTER:
+			perform(main);
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+draw(struct state *state)
+{
+	struct mainmenu *main = state->data;
+
+	painter_set_color(0xffffffff);
+	painter_clear();
+
+	for (size_t i = 0; i < NELEM(main->texts); ++i)
+		texture_draw(&main->texts[i].tex, main->texts[i].x, main->texts[i].y);
+
+	/* TODO: a sword here. */
+	painter_set_color(0x000000ff);
+	painter_draw_rectangle(
+	    main->texts[main->itemsel].x - 30,
+	    main->texts[main->itemsel].y + 11, 15, 15);
+	painter_present();
+}
+
+static void
+finish(struct state *state)
+{
+	struct mainmenu *main = state->data;
+
+	if (!main)
+		return;
+
+	for (size_t i = 0; i < NELEM(main->texts); ++i)
+		texture_finish(&main->texts[i].tex);
+
+	free(main);
+	memset(state, 0, sizeof (*state));
+}
+
+void
+mainmenu_state(struct state *state)
+{
+	assert(state);
+
+	memset(state, 0, sizeof (*state));
+	state->start = start;
+	state->handle = handle;
+	state->draw = draw;
+	state->finish = finish;
+}