From 8d370cda930e19d0e34568adc55b4ab4d6a9655c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Mon, 10 Sep 2018 13:01:48 +0200
Subject: [PATCH] Improve graphics

---
 demo3.cpp | 276 +++++++++++++++++++-----------------------------------
 1 file changed, 97 insertions(+), 179 deletions(-)

diff --git a/demo3.cpp b/demo3.cpp
index fa57895..24a08a1 100644
--- a/demo3.cpp
+++ b/demo3.cpp
@@ -38,179 +38,93 @@ const int8_t heightProfile[] = {
 
 const unsigned char imageBackground[] =
 {  55, 44 // width, height
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+  ,0xd2,0xd2,0xd2,0xd2,0x3b,0x3b
 };
 
 Unit floorHeightAt(int16_t x, int16_t y)
@@ -228,25 +142,29 @@ uint16_t backgroundColumn = 0;
 */
 inline void pixelFunc(PixelInfo pixel)
 {
-  uint8_t c;
+  uint8_t c = 0;
 
   int16_t intensity = 0;
 
   if (pixel.isWall)
   {
     c = 50;
-    intensity = pixel.hit.direction % 2 == 0 ? 2 : 0;
+    
+    intensity = pixel.depth / (UNITS_PER_SQUARE * 3);
+    intensity += pixel.hit.direction % 2 == 0 ? 2 : 0;
   }
-  else if (pixel.isFloor && !pixel.isHorizon)
+  else if (pixel.isFloor)
   {
     c = floorColor;
-    intensity = pixel.depth / (UNITS_PER_SQUARE * 3);
+
+    if (!pixel.isHorizon)
+      intensity = pixel.depth / (UNITS_PER_SQUARE * 3);
   }
   else
   {
     if (previousColumn == pixel.position.x)
     {
-      c = imageBackground[2 + backgroundColumn * 44 + pixel.position.y / 2];
+      c = imageBackground[2 + backgroundColumn * 22 + min(pixel.position.y,43) / 2];
     }
     else
     {
@@ -274,7 +192,7 @@ void draw()
   RayConstraints c;
 
   c.maxHits = 6;
-  c.maxSteps = 12;
+  c.maxSteps = 20;
   c.computeTextureCoords = 0;
 
   render(player.mCamera,floorHeightAt,0,0,pixelFunc,c);