From 030d5c54598e2a15eb69c335ca82eb2d82640f5d Mon Sep 17 00:00:00 2001
From: Lukas Krickl <lukas@krickl.dev>
Date: Thu, 3 Oct 2024 08:17:30 +0200
Subject: [PATCH] wip: Adding map code and test floor tiles

---
 src/main.s         |  4 ++-
 src/map.s          | 22 ++++++++++++++++
 src/player.s       | 12 ++++++---
 src/wram.s         | 17 ++++++++++++
 tiles/tileset1.inc | 64 +++++++++++++++++++++++-----------------------
 5 files changed, 83 insertions(+), 36 deletions(-)
 create mode 100644 src/map.s

diff --git a/src/main.s b/src/main.s
index 0f83161..fbe653d 100644
--- a/src/main.s
+++ b/src/main.s
@@ -31,7 +31,6 @@ main:
   ld [frame_ready], a
   jr @forever REL
 
-#include "tiles.inc"
 #include "video.s"
 #include "mem.s"
 #include "strings.s"
@@ -39,6 +38,9 @@ main:
 #include "input.s"
 #include "player.s"
 #include "update.s"
+#include "map.s"
+
+#include "tiles.inc"
 
 ; fill bank
 .fill 0, 0x7FFF - $
diff --git a/src/map.s b/src/map.s
new file mode 100644
index 0000000..dffa08a
--- /dev/null
+++ b/src/map.s
@@ -0,0 +1,22 @@
+  ; map tiles
+  ; tiles are 2x2 areas 
+  ; this simply defines the first tile 
+  ; in the set 
+#define TILE_FLOOR_1 14
+
+  ; maps are collections of rooms
+
+  ; rooms are made up of 2x2 meta tiles 
+  ; the bottom 2 tiles are reserved for the UI
+  ; a rooms is exactly 1 screen 
+  ; there is no scrolling
+  ; rooms may have 4 regular exits and 1 secret exit
+
+room_draw:
+  ret
+
+  ; base room 
+  ; this can be copied and modified 
+  ; by the map gen
+base_room:
+  
diff --git a/src/player.s b/src/player.s
index ab54345..378bd73 100644
--- a/src/player.s
+++ b/src/player.s
@@ -16,6 +16,12 @@ player_update:
 
   ; d: player_y
   ; e: player_x
+  ; b: obj flags mask
+  
+  ; set up obj flag mask based on frame counter 
+  ld a, [frame_count]
+  and a, 4
+  ld b, 0 
 
   ; input handling
   input_held BTNDOWN
@@ -83,7 +89,7 @@ player_update:
   ld [hl+], a
 
   ; flags
-  xor a, a
+  ld a, b
   ld [hl+], a
 
   ; obj 2
@@ -99,7 +105,7 @@ player_update:
   ld [hl+], a
   
   ; flags
-  xor a, a
+  ld a, b
   ld [hl+], a
 
   ; obj 3
@@ -115,7 +121,7 @@ player_update:
   ld [hl+], a
 
   ; flags
-  xor a, a
+  ld a, b
   ld [hl+], a
 
 
diff --git a/src/wram.s b/src/wram.s
index e96ab66..ec573c6 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -38,3 +38,20 @@ actor_table: .adv ACTORS_MAX * actor_size
 .de player_size, 0
 
 player: .adv player_size
+
+; struct map
+.se 0
+.de map_size, 0
+
+  ; rooms are 18x18 
+#define ROOM_W 18
+#define ROOM_H 18
+
+; struct room
+.se 0
+.de tiles, ROOM_W * ROOM_H
+.de room_size, 0
+
+
+  ; pointer to current room struct 
+curr_room: .adv 2
diff --git a/tiles/tileset1.inc b/tiles/tileset1.inc
index cbac2f4..405104d 100644
--- a/tiles/tileset1.inc
+++ b/tiles/tileset1.inc
@@ -584,23 +584,23 @@
 .chr 00000000
 .chr 00000000
 ; tile 65
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
+.chr 00011111
+.chr 00100000
+.chr 01000000
+.chr 10000000
+.chr 10000000
+.chr 10000000
+.chr 10000000
+.chr 10000001
 ; tile 66
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
+.chr 11111000
+.chr 00000100
+.chr 00000010
+.chr 00000001
+.chr 00000001
+.chr 00000001
+.chr 00000001
+.chr 10000001
 ; tile 67
 .chr 00000000
 .chr 00000000
@@ -728,23 +728,23 @@
 .chr 00000000
 .chr 00000000
 ; tile 81
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
+.chr 10000001
+.chr 10000000
+.chr 10000000
+.chr 10000000
+.chr 10000000
+.chr 10000000
+.chr 01000000
+.chr 00111111
 ; tile 82
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
-.chr 00000000
+.chr 10000001
+.chr 00000001
+.chr 00000001
+.chr 00000001
+.chr 00000001
+.chr 00000001
+.chr 00000010
+.chr 11111100
 ; tile 83
 .chr 00000000
 .chr 00000000
-- 
2.30.2