--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/librpg/rpg/battle-entity-state.c	Mon Nov 23 17:05:07 2020 +0100
@@ -0,0 +1,54 @@
+/*
+ * battle-entity-state.c -- abstract battle entity state
+ *
+ * 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 "battle-entity.h"
+#include "battle-entity-state.h"
+
+bool
+battle_entity_state_update(struct battle_entity_state *st, struct battle_entity *et, unsigned int ticks)
+{
+	assert(st);
+	assert(et);
+
+	if (st->update)
+		return st->update(st, et, ticks);
+
+	return true;
+}
+
+void
+battle_entity_state_draw(const struct battle_entity_state *st, const struct battle_entity *et)
+{
+	assert(st);
+
+	if (st->draw)
+		st->draw(st, et);
+	else
+		battle_entity_draw_sprite(et);
+}
+
+void
+battle_entity_state_finish(struct battle_entity_state *st, struct battle_entity *et)
+{
+	assert(et);
+
+	if (st->finish)
+		st->finish(st, et);
+}