--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/example-states/state-play.c	Sun Feb 04 15:24:00 2024 +0100
@@ -0,0 +1,179 @@
+/*
+ * state-play.c -- very funny game
+ *
+ * Copyright (c) 2020-2023 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 <mlk/core/alloc.h>
+#include <mlk/core/event.h>
+#include <mlk/core/game.h>
+#include <mlk/core/image.h>
+#include <mlk/core/painter.h>
+#include <mlk/core/panic.h>
+#include <mlk/core/state.h>
+#include <mlk/core/texture.h>
+#include <mlk/core/util.h>
+
+#include <mlk/ui/align.h>
+#include <mlk/ui/button.h>
+
+#include <assets/images/dvd.h>
+
+#include "state-menu.h"
+#include "state-play.h"
+
+#define BG         0x99c2dbff
+#define BUTTON_H   (mlk_window.h / 20)
+#define BUTTON_W   (mlk_window.w / 10)
+#define LOGO       assets_images_dvd
+#define LOGO_SPEED 100
+
+#define PLAY(self) MLK_CONTAINER_OF(self, struct play, state)
+
+struct play {
+	struct mlk_button button_leave;
+	struct mlk_texture logo;
+	int x;
+	int y;
+	int dx;
+	int dy;
+	struct mlk_state state;
+};
+
+static void
+state_play__start(struct mlk_state *self)
+{
+	struct play *play = PLAY(self);
+
+	if (mlk_image_openmem(&play->logo, LOGO, sizeof (LOGO)) < 0)
+		mlk_panic();
+
+	mlk_align(MLK_ALIGN_CENTER,
+	          &play->x,
+	          &play->y,
+	          play->logo.w,
+	          play->logo.h,
+	          0,
+	          0,
+	          mlk_window.w,
+	          mlk_window.h
+	);
+
+	play->button_leave.text = "menu";
+	play->button_leave.w = BUTTON_W;
+	play->button_leave.h = BUTTON_H;
+
+	mlk_align(MLK_ALIGN_BOTTOM,
+	          &play->button_leave.x,
+	          &play->button_leave.y,
+	          play->button_leave.w,
+	          play->button_leave.h,
+	          0,
+	          0,
+	          mlk_window.w,
+	          mlk_window.h - 20
+	);
+
+	play->dx = play->dy = 1;
+}
+
+static void
+state_play__handle(struct mlk_state *self, const union mlk_event *event)
+{
+	struct play *play = PLAY(self);
+
+	if (mlk_button_handle(&play->button_leave, event))
+		mlk_game_pop();
+
+	switch (event->type) {
+	case MLK_EVENT_QUIT:
+		mlk_game_quit();
+		break;
+	case MLK_EVENT_KEYUP:
+		switch (event->key.key) {
+		case MLK_KEY_ESCAPE:
+			mlk_game_pop();
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+state_play__update(struct mlk_state *self, unsigned int ticks)
+{
+	struct play *play = PLAY(self);
+
+	play->x += play->dx * (LOGO_SPEED * ticks / 1000);
+	play->y += play->dy * (LOGO_SPEED * ticks / 1000);
+
+	if (play->x < 0) {
+		play->dx = 1;
+		play->x = 0;
+	} else if (play->x + play->logo.w >= mlk_window.w) {
+		play->dx = -1;
+		play->x = mlk_window.w - play->logo.w;
+	}
+
+	if (play->y < 0) {
+		play->dy = 1;
+		play->y = 0;
+	} else if (play->y + play->logo.h >= mlk_window.h) {
+		play->dy = -1;
+		play->y = mlk_window.h - play->logo.h;
+	}
+
+	mlk_button_update(&play->button_leave, ticks);
+}
+
+static void
+state_play__draw(struct mlk_state *self)
+{
+	struct play *play = PLAY(self);
+
+	mlk_painter_set_color(BG);
+	mlk_painter_clear();
+	mlk_texture_draw(&play->logo, play->x, play->y);
+	mlk_button_draw(&play->button_leave);
+	mlk_painter_present();
+}
+
+static void
+state_play__finish(struct mlk_state *self)
+{
+	struct play *play = PLAY(self);
+
+	mlk_texture_finish(&play->logo);
+}
+
+struct mlk_state *
+state_play_new(void)
+{
+	struct play *play;
+
+	play = mlk_alloc_new0(1, sizeof (*play));
+	play->state.name = "play";
+	play->state.start = state_play__start;
+	play->state.handle = state_play__handle;
+	play->state.update = state_play__update;
+	play->state.draw = state_play__draw;
+	play->state.finish = state_play__finish;
+
+	return &play->state;
+}