diff --git a/demo2.cpp b/demo2.cpp
index be9bc22..92936c2 100644
--- a/demo2.cpp
+++ b/demo2.cpp
@@ -7,6 +7,11 @@
   license: CC0 1.0
 */
 
+#define FPS 60
+#define PLAYER_SPEED (UNITS_PER_SQUARE * 3)
+
+#define SUBSAMPLE 1
+
 #include "general.hpp"
 
 #define LEVEL_X_RES 32
@@ -23,256 +28,283 @@ Sprite sprites[SPRITES];
 
 const unsigned char level[] =
 {
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+  0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,1,1,1,1,0,1,1,1,3,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  1,3,1,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+};
+
+const unsigned char texture1[] =
+{  32, 36 // width, height
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+  ,0x12,0x12,0x11,0x11,0x12,0x09,0x11,0x09,0x09,0x08,0x08,0x09,0x12,0x12
+  ,0x12,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x5a,0x5a,0x5a
+  ,0x5b,0x5b,0x5a,0x52,0x5a,0x09,0x11,0x12,0x12,0x11,0x12,0x12,0x11,0x11
+  ,0x12,0x09,0x11,0x08,0x08,0x08,0x52,0x12,0x12,0x12,0x08,0x09,0x09,0x09
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+  ,0x52,0x12,0x11,0x12,0x09,0x08,0x08,0x08,0x08,0x08,0x09,0x09,0x11,0x5a
+  ,0x62,0xab,0xfd,0xab,0x63,0x5a,0x11,0x11,0x09,0x09,0x09,0x09,0x09,0x09
+  ,0x12,0x11,0x12,0x11,0x09,0x08,0x08,0x08,0x52,0x12,0x09,0x11,0x08,0x08
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+  ,0x62,0x63,0xab,0x63,0x62,0x5a,0x11,0x09,0x09,0x09,0x08,0x09,0x09,0x09
+  ,0x12,0x11,0x12,0x09,0x11,0x08,0x08,0x08,0x12,0x12,0x12,0x12,0x09,0x09
+  ,0x5b,0x5b,0x5b,0x5b,0x5b,0x09,0x11,0x5a,0x62,0x63,0xab,0x63,0x5a,0x5a
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+  ,0x12,0x12,0x09,0x09,0x5b,0x5b,0x5b,0x09,0x5b,0x09,0x11,0x5a,0x62,0x63
+  ,0x6b,0x63,0x62,0x5a,0x11,0x09,0x09,0x09,0x08,0x09,0x09,0x09,0x12,0x12
+  ,0x12,0x11,0x09,0x08,0x08,0x08,0x12,0x12,0x09,0x12,0x09,0x09,0x5b,0x5b
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+  ,0x52,0x12,0x12,0x12,0x09,0x09,0x08,0x09,0x08,0x09,0x08,0x09,0x11,0x5a
+  ,0x62,0xab,0xfd,0xab,0x63,0x62,0x51,0x09,0x09,0x09,0x09,0x09,0x09,0x09
+  ,0x12,0x12,0x12,0x09,0x09,0x08,0x08,0x08,0x12,0x12,0x12,0x12,0x08,0x09
+  ,0x09,0x09,0x08,0x09,0x09,0x09,0x09,0x52,0x5a,0x5a,0x5a,0x5a,0x5a,0x51
+  ,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x12,0x12,0x12,0x09,0x09,0x08
+  ,0x08,0x08,0x12,0x12,0x12,0x09,0x12,0x11,0x12,0x09,0x11,0x09,0x11,0x09
+  ,0x12,0x12,0x5a,0x5a,0x5a,0x5a,0x5a,0x5a,0x12,0x11,0x12,0x12,0x12,0x12
+  ,0x11,0x12,0x09,0x11,0x11,0x11,0x09,0x08,0x08,0x08,0x12,0x12,0x09,0x12
+  ,0x12,0x12,0x11,0x12,0x12,0x11,0x12,0x11,0x12,0x12,0x52,0x5a,0x5a,0x52
+  ,0x52,0x12,0x12,0x11,0x11,0x12,0x11,0x11,0x11,0x12,0x12,0x09,0x12,0x09
+  ,0x09,0x08,0x08,0x08,0x52,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12
+  ,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12
+  ,0x12,0x12,0x12,0x12,0x12,0x12,0x11,0x11,0x09,0x08,0x08,0x08,0x11,0x09
+  ,0x09,0x09,0x11,0x11,0x12,0x12,0x11,0x11,0x11,0x11,0x11,0x09,0x09,0x09
+  ,0x09,0x09,0x11,0x09,0x11,0x09,0x09,0x11,0x09,0x11,0x11,0x11,0x09,0x11
+  ,0x12,0x09,0x11,0x08
 };
 
 const unsigned char texture2[] =
-{  32, 32 // width, height
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-  ,0x66,0x66,0x13,0x25,0x0a,0x01,0x6e,0x66,0x01,0x12,0x02,0x01,0x1b,0x6e
-  ,0x77,0x77,0x77,0x77,0x77,0x6f,0x6f,0x6e,0x1c,0x1d,0x1c,0x77,0x67,0x6f
-  ,0x6f,0x77,0x67,0x77,0x77,0x66,0x13,0x0a,0x14,0x77,0x66,0x6f,0x77,0x66
-  ,0x1b,0x13,0x66,0x77,0x6f,0x77,0x6f,0x6f,0x6f,0x26,0x6e,0x1d,0x25,0x14
-  ,0x13,0x6e,0x6f,0x6f,0x77,0x6f,0x77,0x77,0x77,0x1d,0x1d,0x01,0x25,0x67
-  ,0x7f,0x6f,0x6f,0x66,0x66,0x14,0x66,0x6f,0x7f,0x6f,0x77,0x6f,0x1d,0x25
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 };
 
 const unsigned char texture3[] =
-{  32, 32 // width, height
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-};
-
-const unsigned char texture4[] =
-{  32, 32 // width, height
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-  ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
-  ,0xad,0x64,0x64,0x5b,0x5b,0x5b,0x12,0x00,0x12,0x1c,0x65,0x65,0x65,0x65
-  ,0x1c,0x1c,0x1c,0x1c,0x1c,0x1b,0x1b,0x1b,0x13,0x00,0x5b,0x5b,0xad,0x64
-  ,0xad,0xad,0x5b,0x00,0x64,0x64,0x64,0x5b,0x5b,0x64,0x5b,0x00,0x1c,0x1b
-  ,0x1b,0x1b,0x1b,0x13,0x12,0x13,0x12,0x12,0x12,0x12,0x0a,0x0a,0x09,0x00
-  ,0x5b,0x5b,0xad,0xad,0xad,0x64,0x5b,0x00,0xad,0x64,0x5b,0x5b,0x5b,0x5b
-  ,0x5b,0x00,0x65,0x1b,0x1b,0x13,0x13,0x12,0x0a,0x0a,0x12,0x0a,0x0a,0x0a
-  ,0x0a,0x09,0x09,0x00,0x5b,0x5b,0xad,0x64,0x64,0x64,0x5b,0x00,0x64,0x64
-  ,0x64,0x64,0x5b,0x5b,0x5b,0x00,0x65,0x13,0x1b,0x00,0x00,0x00,0x00,0x00
-  ,0x00,0x00,0x00,0x00,0x09,0x0a,0x09,0x00,0x5b,0x5b,0x64,0x64,0x64,0x64
-  ,0x5b,0x00,0x64,0x64,0x64,0x64,0x5b,0x64,0x5b,0x00,0x65,0x1b,0x13,0x00
-  ,0x09,0x09,0x0a,0x09,0x09,0x09,0x09,0x09,0x1b,0x0a,0x09,0x00,0x5b,0x5b
-  ,0xad,0x64,0x5b,0x64,0x5b,0x00,0x64,0x64,0x64,0x64,0x5b,0x5b,0x5b,0x00
-  ,0x65,0x13,0x12,0x00,0x09,0x0a,0x12,0x12,0x0a,0x12,0x12,0x12,0x1b,0x0a
-  ,0x09,0x00,0x5b,0x52,0x64,0x64,0x5b,0x5b,0x5b,0x00,0x64,0x64,0x64,0x64
-  ,0x5b,0x5b,0x12,0x00,0x65,0x12,0x13,0x00,0x09,0x12,0x0a,0x0a,0x0a,0x0a
-  ,0x0a,0x0a,0x1c,0x09,0x0a,0x00,0x5b,0x5b,0x64,0x64,0x5b,0x64,0x5b,0x00
-  ,0x5b,0x5b,0x5b,0x5b,0x5b,0x12,0x5b,0x00,0x65,0x13,0x12,0x00,0x09,0x12
-  ,0x0a,0x0a,0x0a,0x09,0x0a,0x09,0x1c,0x0a,0x0a,0x00,0x5b,0x52,0x64,0x5b
-  ,0x64,0x5b,0x5b,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1c,0x12
-  ,0x0a,0x00,0x09,0x12,0x0a,0x0a,0x09,0x0a,0x09,0x09,0x1c,0x0a,0x0a,0x00
-  ,0x52,0x5b,0x64,0x64,0x5b,0x5b,0x5b,0x00,0xad,0xad,0xad,0xad,0xad,0xad
-  ,0x5b,0x00,0x1c,0x12,0x0a,0x00,0x09,0x0a,0x0a,0x0a,0x09,0x09,0x09,0x09
-  ,0x65,0x0a,0x09,0x00,0x5b,0x52,0x64,0x64,0x5b,0x5b,0x5b,0x00,0xad,0xad
-  ,0xad,0xad,0xad,0x64,0x5b,0x00,0x1b,0x0a,0x12,0x00,0x09,0x0a,0x09,0x09
-  ,0x0a,0x0a,0x09,0x09,0x65,0x09,0x09,0x00,0x52,0x12,0x64,0x5b,0x5b,0x5b
-  ,0x5b,0x00,0xad,0xad,0xad,0xad,0xad,0x64,0x5b,0x00,0x1b,0x12,0x0a,0x00
-  ,0x09,0x0a,0x0a,0x09,0x0a,0x09,0x09,0x0a,0x1c,0x09,0x09,0x00,0x52,0x52
-  ,0x5b,0x5b,0x5b,0x64,0x5b,0x00,0xad,0xad,0xad,0xad,0x64,0x64,0x5b,0x00
-  ,0x1b,0x0a,0x09,0x09,0x13,0x1b,0x1c,0x1c,0x65,0x65,0x1c,0x1c,0x1b,0x09
-  ,0x09,0x00,0x12,0x12,0x5b,0x5b,0x5b,0x5b,0x5b,0x00,0xad,0xad,0xad,0xad
-  ,0xad,0x64,0x5b,0x00,0x1b,0x0a,0x09,0x0a,0x0a,0x09,0x09,0x09,0x09,0x09
-  ,0x09,0x09,0x09,0x09,0x09,0x00,0x12,0x12,0x5b,0x5b,0x5b,0x5b,0x12,0x00
-  ,0xad,0xad,0xad,0x64,0xad,0x64,0x5b,0x00,0x13,0x09,0x0a,0x09,0x09,0x09
-  ,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x00,0x09,0x12,0x5b,0x5b
-  ,0x5b,0x12,0x5b,0x00,0xad,0xad,0x64,0x64,0xad,0x64,0x5b,0x00,0x0a,0x00
-  ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
-  ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xad,0x64,0xad,0x64,0xad,0x64
-  ,0x12,0x00
+{  32, 36 // width, height
+  ,0x08,0x08,0x64,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64
+  ,0x64,0x5b,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0x6d,0x64,0x64,0x64,0x64,0x5b,0x5b,0x09,0x09,0x09,0x09
+  ,0x09,0x08,0x08,0x08,0x64,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x64,0x64
+  ,0x64,0x64,0x5b,0x5b,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x09,0x64,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0x6d,0x64,0x64,0x64,0x64,0x64,0x5b,0x00,0x09
+  ,0x00,0x09,0x11,0x08,0x08,0x08,0x64,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d
+  ,0x6d,0x64,0x64,0x64,0x64,0x5b,0x00,0x00,0x00,0x09,0x09,0x08,0x08,0x08
+  ,0x64,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x64,0x64,0x64,0x64,0x5b
+  ,0x00,0x09,0x00,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x09,0x12,0x12,0x12
+  ,0x12,0x12,0x12,0x12,0x12,0x12,0xb6,0xb6,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0x6d,0x64,0x64,0x64,0x64,0x5b,0x00,0x09,0x00,0x09,0x09,0x08
+  ,0x08,0x08,0x64,0x64,0x64,0x12,0x12,0x12,0x12,0x52,0x52,0x52,0x12,0xb6
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x64,0x64,0x64
+  ,0x64,0x5b,0x00,0x09,0x00,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x52,0x64
+  ,0x64,0x5b,0x5b,0x5b,0x52,0x5b,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x00,0x00,0x00,0x09
+  ,0x09,0x08,0x08,0x09,0x64,0x09,0x12,0x64,0x12,0x12,0x52,0x5b,0x12,0x52
+  ,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d
+  ,0x64,0x64,0x64,0x5b,0x00,0x09,0x09,0x09,0x11,0x08,0x08,0x08,0x64,0x64
+  ,0x64,0x64,0x64,0x12,0x12,0x12,0x5b,0x52,0xb6,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09
+  ,0x09,0x09,0x09,0x08,0x08,0x09,0x64,0x09,0x5b,0x5b,0x5b,0x5b,0x5b,0x5b
+  ,0x52,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08
+  ,0x64,0x09,0x12,0x52,0x12,0x52,0x52,0x5b,0x12,0x5b,0x12,0xb6,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64,0x5b
+  ,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x64,0x5b,0x5b,0x12
+  ,0x52,0x64,0x12,0x12,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09,0x09,0x09,0x11,0x08
+  ,0x08,0x08,0x64,0x09,0x12,0x52,0x5b,0x12,0x12,0x64,0x12,0x12,0x12,0x12
+  ,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x64,0x64
+  ,0x64,0x5b,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x12,0x12
+  ,0x5b,0x64,0x12,0x52,0x5b,0x5b,0x5b,0x12,0xb6,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09,0x09,0x09
+  ,0x09,0x08,0x08,0x08,0x64,0x09,0x12,0x12,0x12,0x64,0x12,0x52,0x52,0x12
+  ,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d
+  ,0x64,0x64,0x64,0x5b,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0x09
+  ,0x5b,0x5b,0x5b,0x64,0x12,0x52,0x12,0x12,0x12,0x12,0xb6,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09
+  ,0x09,0x09,0x09,0x08,0x08,0x09,0x64,0x09,0x5a,0x62,0x5a,0x64,0x52,0x52
+  ,0x5b,0x12,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0x6d,0x6d,0x64,0x64,0x52,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08
+  ,0x64,0x09,0x62,0xb3,0x63,0x52,0x64,0x5b,0x5b,0x12,0x12,0x12,0xb6,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x6d,0x64,0x5b,0x09
+  ,0x09,0x09,0x09,0x09,0x11,0x08,0x08,0x08,0x64,0x09,0x5a,0x63,0x63,0x5b
+  ,0x64,0x52,0x52,0x52,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0x6d,0x6d,0x6d,0x64,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x08
+  ,0x08,0x08,0x64,0x09,0x12,0x09,0x09,0x5b,0x64,0x09,0x12,0x5b,0x12,0x12
+  ,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64
+  ,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x12,0x09
+  ,0x00,0x64,0x09,0x00,0x12,0x52,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x09,0x09,0x09,0x09,0x09,0x09
+  ,0x09,0x08,0x08,0x08,0x64,0x09,0x12,0x00,0x00,0x52,0x00,0x00,0x12,0x12
+  ,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d
+  ,0x64,0x64,0x09,0x12,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x09,0x64,0x09
+  ,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x12,0x12,0x12,0xb6,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x09,0x09,0x09,0x09
+  ,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0x09,0x12,0x12,0x52,0x52,0x52,0x52
+  ,0x52,0x12,0x12,0x12,0xb6,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0x6d,0x6d,0x64,0x64,0x09,0x12,0x09,0x09,0x09,0x09,0x11,0x08,0x08,0x09
+  ,0x64,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0xb6,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x6d,0x64,0x09,0x12
+  ,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0xb6,0xb6,0xb6,0xb6,0xb6
+  ,0xb6,0xb6,0xb6,0xb6,0xb6,0xb6,0xb6,0xb6,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0x6d,0x6d,0x6d,0x64,0x09,0x12,0x09,0x09,0x09,0x09,0x09,0x08
+  ,0x08,0x08,0x64,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64
+  ,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0x6d,0x6d,0x64,0x64,0x09,0x09,0x09,0x09,0x09,0x09
+  ,0x09,0x08,0x08,0x08,0x64,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d
+  ,0x64,0x64,0x5b,0x09,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x64,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad,0xad
+  ,0xad,0xad,0xad,0xad,0xad,0x6d,0x6d,0x6d,0x64,0x64,0x64,0x5b,0x09,0x09
+  ,0x09,0x09,0x11,0x08
 };
 
 const unsigned char sprite1[] =
@@ -431,19 +463,22 @@ const unsigned char sprite2[] =
   ,0x07,0x07
 };
 
-const unsigned char *textures[] = {texture2, texture3, texture4};
+const unsigned char *textures[] = {texture1, texture2, texture3};
 
 Unit floorHeightAt(int16_t x, int16_t y)
 {
   if (x >= 0 && x < LEVEL_X_RES && y >= 0 && y < LEVEL_Y_RES)
     return level[(LEVEL_Y_RES - y -1) * LEVEL_X_RES + x] == 0 ?
-      0 : UNITS_PER_SQUARE; 
+      0 : UNITS_PER_SQUARE * 2; 
 
-  return UNITS_PER_SQUARE;
+  return UNITS_PER_SQUARE * 2;
 }
 
 Unit textureAt(int16_t x, int16_t y)
 {
+  if (x >= 0 && x < LEVEL_X_RES && y >= 0 && y < LEVEL_Y_RES)
+    return max(level[(LEVEL_Y_RES - y -1) * LEVEL_X_RES + x] - 1,0); 
+
   return 0;
 }
 
@@ -455,32 +490,15 @@ inline void pixelFunc(PixelInfo pixel)
   if (pixel.position.y == MIDDLE_ROW)
     zBuffer[pixel.position.x] = pixel.depth;
 
-  uint8_t c;
-
-  Unit depth = pixel.depth - UNITS_PER_SQUARE * 3;
-  depth = depth > 0 ? depth : 1;
-
-  int intensity = 7 - (depth * 7) / (UNITS_PER_SQUARE * 5);
-
-  if (intensity < 0)
-    intensity = 0;
+  uint8_t c = 0;
 
   if (pixel.isWall)
   {
-    if ((pixel.hit.direction == 0 || pixel.hit.direction == 2))
-      intensity -= 2;
-
-    if (intensity < 0)
-      intensity = 0;
-
     c = sampleImage(textures[pixel.hit.type],pixel.hit.textureCoord,pixel.textureCoordY);
-    c = addIntensity(c,intensity - 3);
+    c = addIntensity(c,pixel.hit.direction % 2 == 0 ? 2 : 0);
   }
   else
-    c = pixel.isFloor ?
-          rgbToIndex(intensity/2,intensity,intensity/3) :
-          rgbToIndex(intensity,intensity/2,0);
-
+    c = pixel.isFloor ? 100 : 50;
 
   uint8_t *buf = pokitto.display.screenbuffer;
 
@@ -497,15 +515,15 @@ void draw()
 {
   RayConstraints c;
 
-  c.maxHits = 8;
-  c.maxSteps = 10;
+  c.maxHits = 1;
+  c.maxSteps = 20;
   c.computeTextureCoords = 1;
 
-  render(player.mCamera,floorHeightAt,0,
-textureAt,pixelFunc,c);
+  render(player.mCamera,floorHeightAt,0,textureAt,pixelFunc,c);
 
   Unit previousDepth;
 
+/*
   // draw sprites
 
   for (uint8_t i = 0; i < SPRITES; ++i)
@@ -528,7 +546,8 @@ textureAt,pixelFunc,c);
 
     previousDepth = pos.depth;
   }
-
+*/
+/*
 pokitto.display.setColor(rgbToIndex(7,7,3));
 pokitto.display.setCursor(1,1);
 pokitto.display.print(player.mCamera.position.x);
@@ -536,7 +555,7 @@ pokitto.display.print(" ");
 pokitto.display.print(player.mCamera.position.y);
 pokitto.display.print(" ");
 pokitto.display.print(player.mCamera.direction);
-
+*/
 }
 
 int main()
@@ -544,7 +563,7 @@ int main()
   pokitto.begin();
   initPalette();
 
-  player.setPositionSquare(4,5);
+  player.setPositionSquare(6,5);
   player.mCamera.height = CAMERA_COLL_HEIGHT_BELOW;
 
   sprites[0] = Sprite(sprite1,10,5,1,100);