From f6ce668aef51ab10ef8488120ff764c90743b185 Mon Sep 17 00:00:00 2001
From: "Daniele Verducci (Slimpenguin)" <daniele.verducci@gmail.com>
Date: Fri, 6 Jan 2023 11:08:06 +0100
Subject: [PATCH] Single monochrome texture working

---
 v2/raycaster.py | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/v2/raycaster.py b/v2/raycaster.py
index 8bf3079..dc9eb0d 100755
--- a/v2/raycaster.py
+++ b/v2/raycaster.py
@@ -44,12 +44,16 @@ MAP_SIZE = 16
 DOF = 2*MAP_SIZE	# Depth Of Field
 
 TEXTURE = [
-	1, 0, 1, 0,
-	0, 1, 0, 1,
-	1, 0, 1, 0,
-	0, 1, 0, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 0, 0, 0, 0, 0, 1,
+	1, 0, 1, 0, 0, 0, 0, 1,
+	1, 0, 0, 1, 0, 0, 0, 1,
+	1, 0, 0, 0, 1, 0, 0, 1,
+	1, 0, 0, 0, 0, 1, 0, 1,
+	1, 0, 0, 0, 0, 0, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
 ]
-TEXTURE_SIZE = 4
+TEXTURE_SIZE = 8
 
 class Main:
 
@@ -291,13 +295,15 @@ class Main:
 				textureSegmentLength = lineHeight / TEXTURE_SIZE
 				textureSegmentStart = lineOffset + textureColumnPixel * textureSegmentLength
 				textureSegmentEnd = textureSegmentStart + textureSegmentLength
-				# Obtain texture value in the pixel representing the current segment
-				texColumn = 1
-				texel = TEXTURE[texColumn + textureColumnPixel * TEXTURE_SIZE]
-				# Calculate shading
-				shading = 255
+				# Obtain texture value in the pixel representing the current segment and calculate shading
 				if vertDist > horizDist:
+					texColumn = int(rayX / (MAP_SCALE / TEXTURE_SIZE) % TEXTURE_SIZE)
 					shading = 127
+				else:
+					texColumn = int(rayY / (MAP_SCALE / TEXTURE_SIZE) % TEXTURE_SIZE)
+					shading = 255
+
+				texel = TEXTURE[texColumn + textureColumnPixel * TEXTURE_SIZE]
 				# Calculate color resulting from texture pixel value + shading
 				color = sdl2.ext.Color(texel*shading,texel*shading,texel*shading,255)
 				# Clipping