From 9f59571d48291d853b4d342a2b20393806219a8c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juhani=20Krekel=C3=A4?= <juhani@krekelä.fi>
Date: Sun, 15 Jan 2023 00:37:02 +0200
Subject: [PATCH] Fix bug with fruits spawning on top of snake

---
 mato8.asm | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/mato8.asm b/mato8.asm
index 94b4146..973996e 100644
--- a/mato8.asm
+++ b/mato8.asm
@@ -153,12 +153,16 @@ spawn_fruit:
 
 	ld i, single_pixel
 	drw fruit_x_reg, fruit_y_reg, 1
-	; Did we spawn over the snake?
-	se vf, 0
-	jp spawn_fruit
 
+	; Did we spawn succesfully?
+	sne vf, 0
 	ret
 
+	; No, we spawned over the snake. Erase and try again
+	ld i, single_pixel
+	drw fruit_x_reg, fruit_y_reg, 1
+	jp spawn_fruit
+
 turn_up:
 	; Don't allow 180° turns (which would kill the snake instantly)
 	se v1, direction_down