From 4e6e4ab53d3d43725f117c0dbf613b2bd9c7794c Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Tue, 21 May 2013 18:22:53 -0400
Subject: Write a stub update_ball().

---
diff --git a/src/ball.c b/src/ball.c
index b0361cc..e816057 100644
--- a/src/ball.c
+++ b/src/ball.c
@@ -26,6 +26,12 @@ free_ball(struct ball *b)
 }
 
 void
+update_ball(struct ball *b)
+{
+	++b;
+}
+
+void
 draw_ball(struct ball *b)
 {
 	mvprintw(b->y, b->x, "o");
diff --git a/src/ball.h b/src/ball.h
index 9f30a83..6090c8e 100644
--- a/src/ball.h
+++ b/src/ball.h
@@ -14,6 +14,7 @@ struct ball {
 
 struct ball *new_ball(int x, int y);
 void free_ball(struct ball *b);
+void update_ball(struct ball *b);
 void draw_ball(struct ball *b);
 
 #endif
diff --git a/src/game.c b/src/game.c
index 56774af..c12d731 100644
--- a/src/game.c
+++ b/src/game.c
@@ -100,6 +100,10 @@ update(struct game *g)
 	update_paddle(&g->players[1]->paddle_h);
 	update_paddle(&g->players[1]->paddle_v);
 
+	for (b = g->balls_head; b != NULL; b = b->next) {
+		update_ball(b);
+	}
+
 	while (g->cur_balls < g->min_balls) {
 		b = new_ball(BALL_START_X_NORMAL, BALL_START_Y_NORMAL);
 		b->next = g->balls_head;
--
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