From: Lukas Krickl <lukas@krickl.dev>
Date: Sat, 10 Jan 2026 04:14:16 +0000 (+0100)
Subject: map: reverted render buffer to use 14x20 tiles
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=f4df076a7c34f1c793c963cbd855e87e2ccf40c5;p=gbrg%2F.git

map: reverted render buffer to use 14x20 tiles
---

diff --git a/src/defs.s b/src/defs.s
index 79414fb..4c9cdd8 100644
--- a/src/defs.s
+++ b/src/defs.s
@@ -31,10 +31,8 @@
 #define MAP_H 14
 #define MAP_TILES (MAP_W * MAP_H)
 
-#define RENDER_BUF_W 16
-#define RENDER_BUF_H 10
-	; 16 bytes per tile
-#define RENDER_BUF_TILE_SIZE 16
+#define RENDER_BUF_W 20
+#define RENDER_BUF_H 14
 #define RENDER_BUF_TILES (RENDER_BUF_W * RENDER_BUF_H)
 
   ; actor type enum
diff --git a/src/map.s b/src/map.s
index 1fb2f5a..93379cd 100644
--- a/src/map.s
+++ b/src/map.s
@@ -465,7 +465,7 @@ map_full_draw_ceiling:
 	; draws floor tiles
 map_full_draw_floor:
 	ld hl, render_buffer + RENDER_BUF_W * 5
-	ld bc, RENDER_BUF_W * 5
+	ld bc, RENDER_BUF_W * 9
 	ld d, 0x02
 	jp memset
 	
diff --git a/src/render.s b/src/render.s
index 777eb8d..a6423a6 100644
--- a/src/render.s
+++ b/src/render.s
@@ -1,19 +1,7 @@
-	; pseudo 3d rendering code
-	; draws based on player position into a frame buffer (tiles)
-	; the frame buffer is then copied to the correct tileset
-
-	; draws a pixel into the frame buffer
-	; inputs:
-	;		hl: ptr into buffer
-	;		$1: color (0-3)
-#macro render_draw_pixel
-
-#endmacro
+	; renders the visible tiles around the player into the render buffer
 
 	
-	; inits the viewport
-	; by placing a unique tile in each position
-	; this tile diretly corresponds to the frame buffer
+	; inits the render view
 render_init_view:
 	; TODO:
 	ret
diff --git a/src/update.s b/src/update.s
index 2052c71..8a3518e 100644
--- a/src/update.s
+++ b/src/update.s
@@ -91,8 +91,7 @@ update_render:
 	ld b, RENDER_BUF_H ; loop counter
 	ld de, render_buffer
 
-	; start 2 rows down 1 tile over
-	ld hl, SCRN0+2+32*2
+	ld hl, SCRN0	
 	call next_vblank_wait
 
 	; copy buffer into SCRN0
@@ -114,11 +113,15 @@ update_render:
 	update_render_draw
 	update_render_draw
 	update_render_draw
+	update_render_draw
+	update_render_draw
+	update_render_draw
+	update_render_draw
 
 	call next_vblank_wait
 
 	push de
-	ld de, 20 - RENDER_BUF_W + 12 ; next row
+	ld de, 12 ; next row
 	add hl, de
 	pop de
 
diff --git a/src/wram.s b/src/wram.s
index 94995ca..300aa23 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -136,6 +136,5 @@ dir_tfs_end:
 	; combat data
 combat: .adv combat_size
 
-.org 0xD000
-render_buffer: .adv RENDER_BUF_TILES * RENDER_BUF_TILE_SIZE
+render_buffer: .adv RENDER_BUF_TILES
 render_canary: .adv 4