From: Perttu Ahola <celeron55@gmail.com>
Date: Thu, 26 Jan 2012 17:57:21 +0000 (+0200)
Subject: Set better visual light levels
X-Git-Url: http://81.2.79.47:8989/gitweb/?a=commitdiff_plain;h=a1eb2836c0764829ebad1462432bb3c5f32750df;p=zefram%2Fminetest%2Fminetest_engine.git

Set better visual light levels
---

diff --git a/src/light.cpp b/src/light.cpp
index f214d6ea..93e49862 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -20,6 +20,56 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "light.h"
 
 #if 1
+/*
+Made using this and adding 230 as the second last one:
+
+#!/usr/bin/python
+
+from math import *
+from sys import stdout
+
+# We want 0 at light=0 and 255 at light=LIGHT_MAX
+LIGHT_MAX = 14
+#FACTOR = 0.69
+#FACTOR = 0.75
+FACTOR = 0.83
+START_FROM_ZERO = False
+
+L = []
+if START_FROM_ZERO:
+    for i in range(1,LIGHT_MAX+1):
+        L.append(int(round(255.0 * FACTOR ** (i-1))))
+    L.append(0)
+else:
+    for i in range(1,LIGHT_MAX+1):
+        L.append(int(round(255.0 * FACTOR ** (i-1))))
+    L.append(255)
+
+L.reverse()
+for i in L:
+    stdout.write(str(i)+",\n")
+*/
+u8 light_decode_table[LIGHT_MAX+1] = 
+{
+23,
+27,
+33,
+40,
+48,
+57,
+69,
+83,
+100,
+121,
+146,
+176,
+212,
+230,
+255,
+};
+#endif
+
+#if 0
 // This is good
 // a_n+1 = a_n * 0.786
 // Length of LIGHT_MAX+1 means LIGHT_MAX is the last value.
@@ -42,7 +92,9 @@ u8 light_decode_table[LIGHT_MAX+1] =
 200,
 255,
 };
-#else
+#endif
+
+#if 0
 // Use for debugging in dark
 u8 light_decode_table[LIGHT_MAX+1] = 
 {