From 739fab66b418fa2cbef84805dc0656d6f0034b0e Mon Sep 17 00:00:00 2001
From: Trevor Maze <rochesterx@rochesterx.dev>
Date: Thu, 19 Feb 2026 16:52:08 -0500
Subject: [PATCH] Trying to nametable the player

---
 plat.nes | Bin 40976 -> 40976 bytes
 plat.s   |  57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/plat.nes b/plat.nes
index d33954fc43a50e2614244f9f220a0e0bea594e76..b99e48389e2240a0ce815da4aa7654a2223b2179 100644
GIT binary patch
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diff --git a/plat.s b/plat.s
index d7a251c..026eb41 100644
--- a/plat.s
+++ b/plat.s
@@ -326,6 +326,7 @@ example_palette:
 buttons:    .res 1
 
 player_pos_x:   .res 1
+player_nmt_x:   .res 1
 player_pos_y:   .res 1
 player_subpos_x:  .res 1 ; XXXXYYYY | first 4 bits X subposition, last 4 bits Y
 player_subpos_y:  .res 1 ; XXXXYYYY | first 4 bits X subposition, last 4 bits Y
@@ -333,6 +334,8 @@ player_vel_x:   .res 1 ; +PPPSSSS | first bit sign, next 3 pixels, last subpixel
 player_vel_y:   .res 1 ; in subpixels
 
 player_status:  .res 1 ; 76543210 | 0: facing (0 right, 1 left)
+                       ;          | 1: nametable X
+                       ;          | 2: nametable Y
                        ;          | 7: talking
 horizontal_speed: .res 1
 
@@ -382,8 +385,15 @@ main:
     adc #1
     sta frame_counter
 
+    lda scroll_x
+    adc #1
+    cmp scroll_x
     sta scroll_x
-
+    bcs :+
+        lda scroll_nmt
+        eor #%00000001
+        sta scroll_nmt
+    :
 
     jsr controller
     jsr movement
@@ -406,6 +416,47 @@ draw_player:
     sta oam + (4 * 0) + 0
     sta oam + (4 * 1) + 0
 
+
+
+jmp @after
+    ; see if we can skip drawing the player because it's off screen
+    lda player_pos_x
+    sec
+    sbc scroll_x
+    cmp player_pos_x ; if underflow, nametable bits must be different to continue
+    bcs :+
+        lda player_status
+        clc
+        ror
+        eor scroll_nmt
+        beq @end_position_application
+        jmp :++
+    :
+        ; if nothing, nametable bits must be same to continue
+        lda player_status
+        clc
+        ror
+        eor scroll_nmt
+        bne @end_position_application
+    :
+@after:
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;PUT WHEN VELOCITY IS BEING APPLIED
+    lda player_pos_x
+    adc #1
+    cmp player_pos_x
+    sta player_pos_x
+    bcs :+
+        lda player_status
+        eor #%00000010
+        sta player_status
+    :
+;;;;;;;;;;;;;;;;;;;;;;;;;
+
+
+
+
     lda player_status
     and #%00000001
     cmp #0
@@ -432,6 +483,8 @@ draw_player:
         sta oam + (4 * 3) + 3
     :
 
+    @end_position_application:
+
     lda player_status
     and #%10000000
     cmp #0
@@ -606,6 +659,8 @@ movement:
         :
     @end:
 
+
+
     ; Jump
     jsr btn_a
     cmp #0