2 files changed, 74 insertions, 0 deletions
diff --git a/plugins/monster/Makefile b/plugins/monster/Makefile
new file mode 100644
index 0000000..1ba16c5
--- /dev/null
+++ b/plugins/monster/Makefile
@@ -0,0 +1,2 @@
+monster.so: monster.c ../game/game.h
+	cc -g -shared -fpic -o monster.so monster.c
diff --git a/plugins/monster/monster.c b/plugins/monster/monster.c
new file mode 100644
index 0000000..167de88
--- /dev/null
+++ b/plugins/monster/monster.c
@@ -0,0 +1,72 @@
+#include <stdlib.h>
+#include <stddef.h>
+#include "dungeon.h"
+
+static struct entity monster;
+
+struct monster_data
+{
+	double timer;
+};
+
+static void monster_spawn(struct entity *self)
+{
+	self->meta = malloc(sizeof(struct monster_data));
+	((struct monster_data *) self->meta)->timer = 0.5;
+}
+
+static void monster_step(struct entity *self, struct entity_step_data stepdata)
+{
+	struct monster_data *data = self->meta;
+
+	if (stepdata.visible && (data->timer -= stepdata.dtime) <= 0.0) {
+		data->timer = 0.5;
+
+		(stepdata.dx && move(self, stepdata.dx > 0 ? -1 : 1, 0)) || (stepdata.dy && move(self, 0, stepdata.dy > 0 ? -1 : 1));
+	}
+}
+
+static void monster_on_collide_with_entity(struct entity *self, struct entity *other)
+{
+	if (other == &player)
+		add_health(other, -1);
+}
+
+static void monster_death(struct entity *self)
+{
+	add_score(5);
+	self->remove = true;
+}
+
+static void spawn_monster(int x, int y)
+{
+	spawn(monster, x, y);
+}
+
+__attribute__((constructor)) static void init()
+{
+	monster = (struct entity) {
+		.name = "monster",
+		.x = 0,
+		.y = 0,
+		.color = get_color("#FF00F6"),
+		.texture = "👾",
+		.remove = false,
+		.meta = NULL,
+		.health = 5,
+		.max_health = 5,
+		.collide_with_entities = true,
+
+		.on_step = &monster_step,
+		.on_collide = NULL,
+		.on_collide_with_entity = &monster_on_collide_with_entity,
+		.on_spawn = &monster_spawn,
+		.on_remove = NULL,
+		.on_death = &monster_death,
+	};
+
+	register_air_function((struct generator_function) {
+		.chance = 50,
+		.callback = &spawn_monster,
+	});
+}