diff --git a/game.cpp b/game.cpp
index 5fe5846..ad6968c 100644
--- a/game.cpp
+++ b/game.cpp
@@ -71,10 +71,18 @@ inline void pixelFunc(PixelInfo pixel)
 {
   uint8_t c = 3 + (pixel.isWall == 0 ? 12 : (pixel.hit.direction * 3));
 
-  uint8_t d = pixel.depth / (UNITS_PER_SQUARE * 3);
+  Unit depth = pixel.depth - UNITS_PER_SQUARE;
+
+  if (depth < 0)
+    depth = 0; 
+
+  int16_t d = depth / (UNITS_PER_SQUARE * 4);
+
+  if (d < 0)
+    d = 0;
 
   if (d <= 2)
-    c-= d;
+    c -= d;
   else
     c = 0;
 
@@ -105,8 +113,8 @@ return;
 */
   RayConstraints c;
 
-  c.maxHits = 8;
-  c.maxSteps = 10;
+  c.maxHits = 16;
+  c.maxSteps = 16;
 
   render(player.mCamera,heightFunc,pixelFunc,c);
 }
@@ -115,7 +123,7 @@ int main()
 {
   p.begin();
 
-
+/*
         int a,s,r,g,b;
         for(a=0; a<=63; a++){
                 s = 0;  r = a;          g = 63-a;       b = 0;          pal[a+s] = p.display.RGBto565(r*4,g*4,b*4);
@@ -124,9 +132,9 @@ int main()
                 s = 192; r = 0;         g = a;          b = 0;          pal[a+s] = p.display.RGBto565(r*4,g*4,b*4);
         }
 
-/*
+
 for (int i = 0; i < 16; ++i)
-pal[i] = p.display.RGBto565(i*16,i*16,i*16);
+pal[i] = p.display.RGBto565(255-i,255-i,255-i);
 */
 
 pal[0] = p.display.RGBto565(0,0,0);
@@ -146,9 +154,10 @@ pal[13] = p.display.RGBto565(64,64,64);
 pal[14] = p.display.RGBto565(128,128,128);
 pal[15] = p.display.RGBto565(192,192,192);
 
+
   p.display.load565Palette(&pal[0]); // load a palette the same way as any other palette in any other screen mode
 
-  p.setFrameRate(30);
+  p.setFrameRate(60);
 
   p.display.setFont(fontTiny);