From d573101459191ca1018c3112e615a22eb683cd40 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Tue, 18 Sep 2018 10:24:57 +0200
Subject: [PATCH] Add floor textures

---
 demo2.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/demo2.cpp b/demo2.cpp
index a267851..c51304a 100644
--- a/demo2.cpp
+++ b/demo2.cpp
@@ -28,6 +28,10 @@
 //#define NO_TEXTURES
   /* ^ Turns off textures and only uses colors, which increases FPS. */
 
+//#define RCL_COMPUTE_FLOOR_TEXCOORDS 1
+  /* ^ Turns on computation of texture coordinates for the floor in raycastlib
+       and makes this demo render the textures. */
+
 //#define NO_SHADING
   /* ^ Turns off shading (fog) which increases FPS. */
 
@@ -53,7 +57,7 @@
 #define RCL_COMPUTE_WALL_TEXCOORDS 0
 #endif
 
-#define FPS 256
+#define FPS 255
 #define HEAD_BOB_HEIGHT 200
 #define HEAD_BOB_STEP 20
 #define PLAYER_SPEED (5 * RCL_UNITS_PER_SQUARE)
@@ -947,7 +951,13 @@ inline void pixelFunc(RCL_PixelInfo *pixel)
   
   if (!pixel->isWall)
   {
+#if RCL_COMPUTE_FLOOR_TEXCOORDS == 1
+    c = pixel->depth > RCL_UNITS_PER_SQUARE * 5 ?
+        textureAverageColors[1] : 
+        sampleImage(textures[1],pixel->texCoords.x,pixel->texCoords.y);
+#else
     c = pixel->isFloor ? cFloor: cCeiling;
+#endif
 
 #ifndef NO_MIRROR
     int16_t intensity =  pixel->isFloor ?
@@ -1079,6 +1089,12 @@ int main()
 
       bool strafe = pokitto.aBtn();
 
+if (pokitto.aBtn())
+  player.mCamera.height += 50;
+
+if (pokitto.bBtn())
+  player.mCamera.height -= 50;
+
       if (!strafe)
       {
         if (pokitto.upBtn())