X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Flight.cpp;h=765c6303a97218ff27f31f2bf470bdb1c5f91710;hb=6f9d3843112ea04dd159984af4470fa8456b18f0;hp=5fd0ce54fdb2d79e3b6c853c8a158ad8fe68f969;hpb=fc26dcdb19dd4e296d850714019ed7da1de0b021;p=dragonfireclient.git

diff --git a/src/light.cpp b/src/light.cpp
index 5fd0ce54f..765c6303a 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -1,25 +1,53 @@
 /*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
 #include "light.h"
 
+#if 1
+// Middle-raised variation of a_n+1 = a_n * 0.786
+// Length of LIGHT_MAX+1 means LIGHT_MAX is the last value.
+// LIGHT_SUN is read as LIGHT_MAX from here.
+u8 light_decode_table[LIGHT_MAX+1] = 
+{
+8,
+11+2,
+14+7,
+18+10,
+22+15,
+29+20,
+37+20,
+47+15,
+60+10,
+76+7,
+97+5,
+123+2,
+157,
+200,
+255,
+};
+#endif
+
+#if 0
 /*
+Made using this and:
+- adding 220 as the second last one
+- replacing the third last one (212) with 195
 
 #!/usr/bin/python
 
@@ -27,41 +55,234 @@ from math import *
 from sys import stdout
 
 # We want 0 at light=0 and 255 at light=LIGHT_MAX
-LIGHT_MAX = 15
+LIGHT_MAX = 14
+#FACTOR = 0.69
+#FACTOR = 0.75
+FACTOR = 0.83
+START_FROM_ZERO = False
 
 L = []
-for i in range(1,LIGHT_MAX+1):
-    L.append(int(round(255.0 * 0.69 ** (i-1))))
-	L.append(0)
+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")
-
+    stdout.write(str(i)+",\n")
 */
+u8 light_decode_table[LIGHT_MAX+1] = 
+{
+23,
+27,
+33,
+40,
+48,
+57,
+69,
+83,
+100,
+121,
+146,
+176,
+195,
+220,
+255,
+};
+#endif
 
-/*
-	The first value should be 0, the last value should be 255.
-*/
+#if 0
+// This is good
+// a_n+1 = a_n * 0.786
+// Length of LIGHT_MAX+1 means LIGHT_MAX is the last value.
+// LIGHT_SUN is read as LIGHT_MAX from here.
+u8 light_decode_table[LIGHT_MAX+1] = 
+{
+8,
+11,
+14,
+18,
+22,
+29,
+37,
+47,
+60,
+76,
+97,
+123,
+157,
+200,
+255,
+};
+#endif
+
+#if 0
+// Use for debugging in dark
+u8 light_decode_table[LIGHT_MAX+1] = 
+{
+58,
+64,
+72,
+80,
+88,
+98,
+109,
+121,
+135,
+150,
+167,
+185,
+206,
+229,
+255,
+};
+#endif
+
+// This is reasonable with classic lighting with a light source
 /*u8 light_decode_table[LIGHT_MAX+1] = 
 {
-0,
 2,
 3,
 4,
 6,
 9,
 13,
+18,
+25,
+32,
+35,
+45,
+57,
+69,
+79,
+255
+};*/
+
+
+// As in minecraft, a_n+1 = a_n * 0.8
+// NOTE: This doesn't really work that well because this defines
+//       LIGHT_MAX as dimmer than LIGHT_SUN
+// NOTE: Uh, this has had 34 left out; forget this.
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+8,
+11,
+14,
+17,
+21,
+27,
+42,
+53,
+66,
+83,
+104,
+130,
+163,
+204,
+255,
+};*/
+
+// This was a quick try of more light, manually quickly made
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+0,
+7,
+11,
+15,
+21,
+29,
+42,
+53,
+69,
+85,
+109,
+135,
+167,
+205,
+255,
+};*/
+
+// This was used for a long time, manually made
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+0,
+6,
+8,
+11,
+14,
 19,
-28,
-40,
-58,
-84,
-121,
-176,
+26,
+34,
+45,
+61,
+81,
+108,
+143,
+191,
+255,
+};*/
+
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+0,
+3,
+6,
+10,
+18,
+25,
+35,
+50,
+75,
+95,
+120,
+150,
+185,
+215,
+255,
+};*/
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+0,
+5,
+12,
+22,
+35,
+50,
+65,
+85,
+100,
+120,
+140,
+160,
+185,
+215,
+255,
+};*/
+// LIGHT_MAX is 14, 0-14 is 15 values
+/*u8 light_decode_table[LIGHT_MAX+1] = 
+{
+0,
+9,
+12,
+14,
+16,
+20,
+26,
+34,
+45,
+61,
+81,
+108,
+143,
+191,
 255,
 };*/
 
+#if 0
 /*
 #!/usr/bin/python
 
@@ -100,5 +321,6 @@ u8 light_decode_table[LIGHT_MAX+1] =
 191,
 255,
 };
+#endif