--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-rpg/rpg/battle-state-rendering.c	Sun Feb 27 10:08:51 2022 +0100
@@ -0,0 +1,114 @@
+/*
+ * battle-state-rendering.c -- battle state (rendering an action)
+ *
+ * Copyright (c) 2020-2022 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 <core/alloc.h>
+#include <core/drawable.h>
+
+#include "battle-state-rendering.h"
+#include "battle.h"
+
+struct self {
+	struct battle_state_rendering data;
+	struct battle_state state;
+};
+
+static int
+update(struct battle_state *st, struct battle *bt, unsigned int ticks)
+{
+	battle_state_rendering_update(st->data, bt, ticks);
+
+	return 0;
+}
+
+static void
+draw(const struct battle_state *st, const struct battle *bt)
+{
+	battle_state_rendering_draw(st->data, bt);
+}
+
+static void
+finish(struct battle_state *st, struct battle *bt)
+{
+	(void)bt;
+
+	battle_state_rendering_finish(st->data);
+	free(st->data);
+}
+
+void
+battle_state_rendering_init(struct battle_state_rendering *rdr, struct drawable *dw)
+{
+	assert(rdr);
+	assert(dw);
+
+	rdr->drawable = dw;
+}
+
+int
+battle_state_rendering_update(struct battle_state_rendering *rdr, struct battle *bt, unsigned int ticks)
+{
+	assert(rdr);
+	assert(battle_ok(bt));
+
+	battle_update_component(bt, BATTLE_COMPONENT_ALL, ticks);
+
+	if (drawable_update(rdr->drawable, ticks)) {
+		drawable_end(rdr->drawable);
+		return 1;
+	}
+
+	return 0;
+}
+
+void
+battle_state_rendering_draw(const struct battle_state_rendering *rdr, const struct battle *bt)
+{
+	assert(rdr);
+
+	battle_draw_component(bt, BATTLE_COMPONENT_ALL);
+	drawable_draw(rdr->drawable);
+}
+
+void
+battle_state_rendering_finish(struct battle_state_rendering *rdr)
+{
+	assert(rdr);
+
+	drawable_finish(rdr->drawable);
+}
+
+void
+battle_state_rendering(struct battle *bt, struct drawable *dw)
+{
+	assert(bt);
+	assert(dw);
+
+	struct self *self;
+
+	self = alloc_new0(sizeof (*self));
+	self->state.data = self;
+	self->state.update = update;
+	self->state.draw = draw;
+	self->state.finish = finish;
+
+	battle_state_rendering_init(&self->data, dw);
+	battle_switch(bt, &self->state);
+}