From 58e648488f98b6b274c0d4ef309e03542b32b582 Mon Sep 17 00:00:00 2001
From: Lukas Krickl <lukas@krickl.dev>
Date: Fri, 25 Oct 2024 16:55:21 +0200
Subject: [PATCH] room load now directly loads the room structs into its
 respective ptrs

---
 maps/base_room.s |  7 ++++---
 src/macros.inc   |  7 +++++++
 src/map.s        |  8 ++++++--
 src/video.s      |  3 ++-
 src/wram.s       | 10 +++++++---
 tools/tms2map.py |  7 ++++---
 6 files changed, 30 insertions(+), 12 deletions(-)

diff --git a/maps/base_room.s b/maps/base_room.s
index 35b5d66..efccf5e 100644
--- a/maps/base_room.s
+++ b/maps/base_room.s
@@ -1,7 +1,8 @@
  ; struct for  base_room
-dw base_room_bg
-dw base_room_flags
-dw base_room_actors
+base_room_struct:
+dwb base_room_bg
+dwb base_room_flags
+dwb base_room_actors
 base_room_actors:
 .db  8
 .db  1 , 67 , 54 , 0
diff --git a/src/macros.inc b/src/macros.inc
index 887ddbd..7275e50 100644
--- a/src/macros.inc
+++ b/src/macros.inc
@@ -42,4 +42,11 @@
 #macro dw 
 .db $1 & 0xFF
 .db ($1 >> 8) & 0xFF 
+#endmacro
+
+  ; same as dw but 
+  ; stores in big endian
+#macro dwb 
+.db ($1 >> 8) & 0xFF 
+.db $1 & 0xFF
 #endmacro
diff --git a/src/map.s b/src/map.s
index ae9cd8a..8b32313 100644
--- a/src/map.s
+++ b/src/map.s
@@ -28,9 +28,13 @@
 
   ; loads a map
   ; inputs:
-  ;   curr_room: ptr to current room
-  ;   curr_room_init_act: ptr to initial actors to be loaded 
+  ;   de: ptr to room struct 
 room_load_from:
+  ; copy de to current room struct 
+  ; and then load the room 
+  ld hl, curr_room_struct  
+  ld bc, room_size
+
   call room_draw
   call room_load_actors
   ret
diff --git a/src/video.s b/src/video.s
index 40fe54f..60d9786 100644
--- a/src/video.s
+++ b/src/video.s
@@ -97,7 +97,8 @@ video_init:
   ld [curr_room_init_act], a
   ldhi a, base_room_actors
   ld [curr_room_init_act+1], a
-
+  
+  ld de, base_room_struct
   call room_load_from 
   
   ; set up bgp
diff --git a/src/wram.s b/src/wram.s
index 9451b3b..72cca69 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -77,16 +77,20 @@ damage_anim: .adv 1
 #define ROOM_H 8
 
 ; struct room
+; FIXME: thse ptrs are currently in big endian...
 .se 0
-.de room_tiles, 2 ; ptr to tiles
-.de room_flags, 2 ; ptr to flags
-.de room_actor_table, 2 ; actor table ot be used
+.de room_tiles, 2 ; be ptr to tiles
+.de room_flags, 2 ; be ptr to flags
+.de room_actor_table, 2 ; be ptr of actor table to be used
 .de room_size, 0
 
 ; room flags
 .se 1
 .de RF_WALL, 1
 
+  ; current room struct 
+  ; same layout as room struct itself 
+curr_room_struct: 
   ; pointer to current room struct 
 curr_room: .adv 2
   ; flags for current tiles
diff --git a/tools/tms2map.py b/tools/tms2map.py
index 46a862d..c7248d4 100755
--- a/tools/tms2map.py
+++ b/tools/tms2map.py
@@ -35,9 +35,10 @@ def print_actor(atype, y, x, flags):
 
 def print_struct(name):
     print(" ; struct for ", name)
-    print("dw " + name + '_bg')
-    print("dw " + name + '_flags')
-    print("dw " + name + '_actors')
+    print(name + "_struct:")
+    print("dwb " + name + '_bg')
+    print("dwb " + name + '_flags')
+    print("dwb " + name + '_actors')
 
 def convert(src, name):
     tree = ET.parse(src)
-- 
2.30.2