From 11baf122132e7e7dceb2f286c0bbd94735d37b36 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Mon, 30 Sep 2024 16:17:05 -0400
Subject: generalize broadcast()

---
 balls.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/balls.c b/balls.c
index 0fb08a7..1c8fb4c 100644
--- a/balls.c
+++ b/balls.c
@@ -58,7 +58,7 @@ int randint(int lo, int hi);
 uint maxelem(uint arr[], uint n);
 double mass(uint radius);
 void ball(void *arg);
-void broadcast(Ball b, Channel *cs[], int n);
+void broadcast(Channel *cs[], int n, void *v);
 void frametick(void *arg);
 
 void
@@ -306,7 +306,7 @@ ball(void *arg) {
 
 		printf("(%d,%d) %f %f\n", b.p.x, b.p.y, b.v.x, b.v.y);
 
-		broadcast(b, barg->out, barg->nothers);
+		broadcast(barg->out, barg->nothers, &b);
 
 		/* check for ball collision */
 		for (i = 0; i < barg->nothers; i++) {
@@ -325,9 +325,9 @@ ball(void *arg) {
 }
 
 void
-broadcast(Ball b, Channel *cs[], int n) {
+broadcast(Channel *cs[], int n, void *v) {
 	while (n-- > 0)
-		send(cs[n], &b);
+		send(cs[n], v);
 }
 
 void
-- 
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