From 5db9c82f05dfda72ae7d4eaa8466bb7245ca6113 Mon Sep 17 00:00:00 2001
From: gsand <gsandowns@gmail.com>
Date: Tue, 15 Apr 2014 22:57:01 -0700
Subject: [PATCH] Inverted Daylight Detector Toggle


diff --git a/src/main/java/net/minecraft/server/BlockDaylightDetector.java b/src/main/java/net/minecraft/server/BlockDaylightDetector.java
index 96e9c37..536fad0 100644
--- a/src/main/java/net/minecraft/server/BlockDaylightDetector.java
+++ b/src/main/java/net/minecraft/server/BlockDaylightDetector.java
@@ -2,6 +2,10 @@ package net.minecraft.server;
 
 import java.util.Random;
 
+// PaperSpigot start
+import org.spigotmc.SpigotWorldConfig;
+// PaperSpigot end
+
 public class BlockDaylightDetector extends BlockContainer {
 
     private IIcon[] a = new IIcon[2];
@@ -38,14 +42,29 @@ public class BlockDaylightDetector extends BlockContainer {
                 f += (6.2831855F - f) * 0.2F;
             }
 
-            i1 = Math.round((float) i1 * MathHelper.cos(f));
-            if (i1 < 0) {
-                i1 = 0;
+            // PaperSpigot start - Inverted Daylight Detectors
+            if (SpigotWorldConfig.InvertedDaylightDetectors) {
+                i1 = Math.round((float) i1 * MathHelper.cos(f) * -1 + 15);
+                if (i1 < 10) {
+                    i1 = 0;
+                }
+
+                if (i1 > 9) {
+                    i1 = 15;
+                }
             }
 
-            if (i1 > 15) {
-                i1 = 15;
+            else {
+                i1 = Math.round((float) i1 * MathHelper.cos(f));
+                if (i1 < 0) {
+                    i1 = 0;
+                }
+
+                if (i1 > 15) {
+                    i1 = 15;
+                }
             }
+            // PaperSpigot end
 
             if (l != i1) {
                 i1 = org.bukkit.craftbukkit.event.CraftEventFactory.callRedstoneChange(world, i, j, k, l, i1).getNewCurrent(); // CraftBukkit - Call BlockRedstoneEvent
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index c6095f2..aa30c9d 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -323,6 +323,13 @@ public class SpigotWorldConfig
         log( "Allow undead horse types to be leashed: " + allowUndeadHorseLeashing );
     }
 
+    public static boolean InvertedDaylightDetectors;
+    private void InvertedDaylightDetectors()
+    {
+        InvertedDaylightDetectors = getBoolean( "inverted-daylight-detectors", false);
+        log( "Inverted Redstone Lamps: " + InvertedDaylightDetectors );
+    }
+
     public int maxBulkChunk;
     private void bulkChunkCount()
     {
-- 
1.9.1