From f94d038f789c1270c727b04952d14eda5c47d585 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Mon, 09 Aug 2021 01:15:32 -0400
Subject: char: Add turn method

---
(limited to 'src')

diff --git a/src/char/char.c b/src/char/char.c
index 05ca03a..b19e750 100644
--- a/src/char/char.c
+++ b/src/char/char.c
@@ -114,6 +114,10 @@ mf_char_update(struct mf_char *c)
 			c->new_x = c->cur_x + dx;
 			c->new_y = c->cur_y + dy;
 			c->travel += c->speed;
+		} else {
+			if (c->turn(c) < 0) {
+				return -1;
+			}
 		}
 	}
 
diff --git a/src/char/char.h b/src/char/char.h
index 516974d..f5054d5 100644
--- a/src/char/char.h
+++ b/src/char/char.h
@@ -53,6 +53,7 @@ struct mf_char {
 	SDL_Color           eyes_color;
 	int               (*update)(struct mf_char *);
 	int               (*step)(struct mf_char *);
+	int               (*turn)(struct mf_char *);
 	int               (*render)(struct mf_char *, SDL_Renderer *);
 	void              (*destroy)(struct mf_char *);
 };
@@ -68,6 +69,7 @@ mf_char_new(size_t size);
 		}; \
 		c->update  = &_mf_##name##_update; \
 		c->step    = &_mf_##name##_step; \
+		c->turn    = &_mf_##name##_turn; \
 		c->render  = &_mf_##name##_render; \
 		c->destroy = &_mf_##name##_destroy; \
 		t_c = (struct mf_##name *) c; \
diff --git a/src/char/enemy.c b/src/char/enemy.c
index e480d10..7d913c4 100644
--- a/src/char/enemy.c
+++ b/src/char/enemy.c
@@ -88,6 +88,15 @@ _mf_enemy_step(struct mf_char *c)
 }
 
 static int
+_mf_enemy_turn(struct mf_char *c)
+{
+	/* Go straight */
+	c->new_dir = c->cur_dir;
+
+	return 0;
+}
+
+static int
 _mf_enemy_render(struct mf_char *c __attribute__((__unused__)),
 		SDL_Renderer *renderer __attribute__((__unused__)))
 {
diff --git a/src/char/player.c b/src/char/player.c
index 7d20aad..eff0dbd 100644
--- a/src/char/player.c
+++ b/src/char/player.c
@@ -61,6 +61,12 @@ _mf_player_step(struct mf_char *c __attribute__((__unused__)))
 }
 
 static int
+_mf_player_turn(struct mf_char *c __attribute__((__unused__)))
+{
+	return 0;
+}
+
+static int
 _mf_player_render(struct mf_char *c __attribute__((__unused__)),
 		SDL_Renderer *renderer __attribute__((__unused__)))
 {
--
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