From: Lukas Krickl <lukas@krickl.dev>
Date: Fri, 12 Dec 2025 08:47:26 +0000 (+0100)
Subject: map: Added map settings load call to allow loading maps for partial redraws
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=b6336b117b94d315410975df37829ecc6b629d42;p=gbrg%2F.git

map: Added map settings load call to allow loading maps for partial redraws
---

diff --git a/src/map.s b/src/map.s
index b88153f..d487c6a 100644
--- a/src/map.s
+++ b/src/map.s
@@ -10,7 +10,7 @@ map_globals_init:
 	ld [map_vram_tl+1], a
 	ret
 
-	; loads a map 
+	; loads a map and performs a full redraw
 	; including the required tileset
 	; sets current page to 0
 	; draws page 0 to the screen
@@ -18,26 +18,20 @@ map_globals_init:
 	; inputs:
 	;		de: map ptr
 map_load:
+	; reset scroll
+	xor a, a
+	ld [scroll_y], a
+	ld [scroll_x], a
+	
 	call disableinterrupts
 	call next_vblank_wait
 	call lcd_off
 
-	ld a, e 
-	ld [map], a
-	ld a, d
-	ld [map+1], a
+	call map_settings_load
 	
 	push de
 	call map_tile_banks_load
 	pop de
-	push de
-	call map_tiles_load
-	pop de
-
-	; TODO: 
-	; load actors
-	; encounter table
-	; exit table
 	
 	call map_full_draw
 
@@ -50,6 +44,29 @@ map_load:
 
 	ret
 	
+	; loads all map related data that 
+	; does not require blanking.
+	; this call can be used for non-blanking redraws
+	;	inputs:
+	;		de: map ptr
+	;	returns:
+	;		de: map ptr
+map_settings_load:
+	ld a, e 
+	ld [map], a
+	ld a, d
+	ld [map+1], a
+
+	push de
+	call map_tiles_load
+	pop de
+
+	; TODO: 
+	; load actors
+	; encounter table
+	; exit table
+	ret
+	
 	; loads a tileset
 	; into the tile buffer
 	; inputs: