From: Lukas Krickl <lukas@krickl.dev>
Date: Sat, 13 Dec 2025 05:10:10 +0000 (+0100)
Subject: map loader: wip added full redraw flag
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=b75e692c854a9fb8049ec3756b6babce7bc04411;p=gbrg%2F.git

map loader: wip added full redraw flag
---

diff --git a/src/defs.s b/src/defs.s
index aa9f937..32bced2 100644
--- a/src/defs.s
+++ b/src/defs.s
@@ -55,7 +55,7 @@
  
 	; map flags
 .se 1
-.de MAP_F_HOSTILE, 1
+.de MAP_F_DO_FULL_REDRAW, 1
 
   ; map header struct
 .se 0
diff --git a/src/levels.s b/src/levels.s
index 9a6394c..a857078 100644
--- a/src/levels.s
+++ b/src/levels.s
@@ -15,5 +15,5 @@
 	; where each tile has values and its current state. The map can be drawn from this.
 
 l1:
-	mapdef 0, map_r_nop, 0, 0, bank8000, bank8800, bank8C00, bank9000, tile_id_table
+	mapdef MAP_F_DO_FULL_REDRAW, map_r_nop, 0, 0, bank8000, bank8800, bank8C00, bank9000, tile_id_table
 #include "spawn.inc"
diff --git a/src/map.s b/src/map.s
index d487c6a..20dfd57 100644
--- a/src/map.s
+++ b/src/map.s
@@ -383,10 +383,38 @@ map_full_draw:
 	map_full_draw_inc_b
 
 	ret
+	
+	; checks the current map
+	; if the fully reload flag is set 
+	; it will do a full redraw
+	; otherwise this routine just returns
+	; if a full redraw is requested this routine 
+	; pops the previous caller's return from the stack
+	; and jumps to a full load
+	; inputs:
+	;		de: new map ptr
+map_try_full_reload:
+	ld hl, map
+	ld a, [hl+]
+	ld h, [hl]
+	ld l, a ; hl = map
+
+	ld a, [hl] ; read flags
+	and a, MAP_F_DO_FULL_REDRAW
+	ret z 
+
+	BREAK
+	ret
 
 	; map transition routines
 	; gets the down exit and sets transition state
 map_get_exit_down_and_set_load:
+	ld hl, map_exit_down
+	ld a, [hl+]
+	ld d, [hl]
+	ld e, a ; de = new map
+	call map_try_full_reload
+
 	ld hl, update_map_load_down
 	call game_set_state
 	ret
diff --git a/src/wram.s b/src/wram.s
index 8f47d3c..e276a3e 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -90,6 +90,20 @@ map: .adv 2
 	; where the map should be drawn
 map_vram_tl: .adv 2
 map_tmp_tile_id_table: .adv 2
+	; exit table
+	; an exit table always has 4 entries
+	; exits usually transition using a scroll
+	; unless the current map has the full reload flag 
+	; set in which case the map fades out and full reloads
+	; the scene
+	; 0: eixt up
+	; 1: exit down
+	;	2: exit left
+	;	3: exit right
+map_exit_up: .adv 2
+map_exit_down: .adv 2
+map_exit_left: .adv 2
+map_exit_right: .adv 2
 	
 	; ptr to current tile to be updated
 tiles: .adv t_size * MAP_TILES