--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/rpg/battle-message.c	Fri Oct 01 20:30:00 2021 +0200
@@ -0,0 +1,69 @@
+/*
+ * battle-message.c -- automatic top center message in battle
+ *
+ * Copyright (c) 2020-2021 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 <core/window.h>
+
+#include <ui/align.h>
+#include <ui/frame.h>
+#include <ui/label.h>
+
+#include "battle-message.h"
+
+#define DELAY 1500
+
+int
+battle_message_update(struct battle_message *msg, unsigned int ticks)
+{
+	assert(msg);
+
+	msg->elapsed += ticks;
+
+	return msg->elapsed >= DELAY;
+}
+
+void
+battle_message_draw(const struct battle_message *msg)
+{
+	assert(msg);
+
+	struct frame f = {0};
+	struct label l = {0};
+	unsigned int lw = 0, lh = 0;
+
+	/* Prepare message frame. */
+	f.w = window.w / 3;
+	f.h = window.h / 15;
+	f.theme = msg->theme;
+
+	/* Center on top. */
+	align(ALIGN_TOP, &f.x, &f.y, f.w, f.h, 0, 20, window.w, window.h);
+
+	/* Prepare message label box. */
+	l.text = msg->text;
+	l.flags = LABEL_FLAGS_SHADOW;
+	l.theme = msg->theme;
+	label_query(&l, &lw, &lh);
+
+	/* Align the text in the box. */
+	align(ALIGN_CENTER, &l.x, &l.y, lw, lh, f.x, f.y, f.w, f.h);
+
+	frame_draw(&f);
+	label_draw(&l);
+}