From 8d545b2e17457fe44e2ec41b02a086a71499a028 Mon Sep 17 00:00:00 2001
From: karri <karri@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Tue, 20 Nov 2012 06:19:50 +0000
Subject: [PATCH] Add erasure of collision buffer to tgi_clear

git-svn-id: svn://svn.cc65.org/cc65/trunk@5938 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 libsrc/lynx/lynx-160-102-16.s | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libsrc/lynx/lynx-160-102-16.s b/libsrc/lynx/lynx-160-102-16.s
index 78d47eb17..72dd0f206 100644
--- a/libsrc/lynx/lynx-160-102-16.s
+++ b/libsrc/lynx/lynx-160-102-16.s
@@ -199,7 +199,7 @@ INIT:
 	lda	#$A0
 	sta	COLLBASH
 ; Put collision index before sprite data
-	lda	#$FE
+	lda	#$FF
 	sta	COLLOFFL
 	lda	#$FF
 	sta	COLLOFFH
@@ -260,12 +260,17 @@ CONTROL:
 
 	cmp	#5
 	bne	ControlSwap
-	lda	ptr1
+	lda	ptr1		; Activate/deactivate collission detection
 	bne	@L0
+       	lda	%00100000	; tgi_clear does not erase collision buffer
+	sta	cls_sprite+2
 	lda	__sprsys
 	ora	#$20
 	bra	@L1
-@L0:	lda	__sprsys
+@L0:	
+       	lda	%00000000	; tgi_clear erases collision buffer
+	sta	cls_sprite+2
+	lda	__sprsys
 	and	#$df
 @L1:	sta	__sprsys
 	sta	SPRSYS
-- 
2.39.5