From b8a496f3df255a7934f72167b4a3ac0ed2172363 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <drummyfish@disroot.org>
Date: Wed, 13 Jan 2021 14:52:05 +0100
Subject: [PATCH] Add settings

---
 game.h     | 37 ++++++++++++++++++++++---------------
 settings.h | 17 +++++++++++++++++
 2 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/game.h b/game.h
index 329d712..c9e4eca 100755
--- a/game.h
+++ b/game.h
@@ -951,12 +951,25 @@ void SFG_pixelFunc(RCL_PixelInfo *pixel)
 
     shadow = pixel->hit.direction >> 1;
   }
-  else
+  else // floor/ceiling
   {
     color = pixel->isFloor ?
-      (SFG_currentLevel.floorColor) : 
+      (
+#if SFG_DIFFERENT_FLOOR_CEILING_COLORS
+        2 + (pixel->height / SFG_WALL_HEIGHT_STEP) % 4
+#else
+        SFG_currentLevel.floorColor
+#endif
+      ) : 
       (pixel->height < SFG_CEILING_MAX_HEIGHT ?
-         SFG_currentLevel.ceilingColor : SFG_TRANSPARENT_COLOR);
+        (
+#if SFG_DIFFERENT_FLOOR_CEILING_COLORS
+          18 + (pixel->height / SFG_WALL_HEIGHT_STEP) % 4
+#else
+          SFG_currentLevel.ceilingColor 
+#endif
+        )
+        : SFG_TRANSPARENT_COLOR);
   }
 
   if (color != SFG_TRANSPARENT_COLOR)
@@ -1006,6 +1019,12 @@ void SFG_pixelFunc(RCL_PixelInfo *pixel)
 #endif
   }
 
+#if SFG_BRIGHTNESS > 0
+  color = palette_plusValue(color,SFG_BRIGHTNESS);
+#elif SFG_BRIGHTNESS < 0
+  color = palette_minusValue(color,-1 * SFG_BRIGHTNESS);
+#endif
+
 #if SFG_RAYCASTING_SUBSAMPLE == 1
   // the other version will probably get optimized to this, but just in case
   SFG_setGamePixel(pixel->position.x,pixel->position.y,color);
@@ -4644,18 +4663,6 @@ void SFG_draw()
   SFG_backgroundBlurIndex = 0;
 #endif
 
-uint8_t aaa = 0;
-/*
-for (uint16_t j = 0; j < SFG_SCREEN_RESOLUTION_Y; ++j)
-for (uint16_t i = 0; i < SFG_SCREEN_RESOLUTION_Y; ++i)
-{
-SFG_setGamePixel(i,j,2);
-aaa++;
-}
-SFG_drawText("aaa",10,10,2,7,255,0);
-
-return;
-*/
   if (SFG_game.state == SFG_GAME_STATE_MENU)
   {
     SFG_drawMenu();
diff --git a/settings.h b/settings.h
index 081c2e8..2c8820a 100644
--- a/settings.h
+++ b/settings.h
@@ -44,6 +44,14 @@
   #define SFG_FPS 60
 #endif
 
+/**
+  Increases or decreases the brightness of the rendered world (but not menu,
+  HUD etc.). Effective values are -8 to 8.
+*/
+#ifndef SFG_BRIGHTNESS
+  #define SFG_BRIGHTNESS 0
+#endif
+
 /**
   On platforms with mouse this sets its horizontal sensitivity. 128 means 1
   RCL_Unit turn angle per mouse pixel travelled.
@@ -148,6 +156,15 @@
   #define SFG_FOG_DIMINISH_STEP 2048
 #endif
 
+/**
+  If set, floor and ceiling will be colored differently depending on their
+  height. This can be useful when fog is turned on and different floor levels
+  are hard to distinguish.
+*/
+#ifndef SFG_DIFFERENT_FLOOR_CEILING_COLORS
+  #define SFG_DIFFERENT_FLOOR_CEILING_COLORS 0
+#endif
+
 /**
   Maximum number of squares that will be traversed by any cast ray. Smaller
   number is faster but can cause visual artifacts.