Expand IPocketAccess.getLight/setLight to use RGB colours

This allows us to restore the modem light to its original colour.

src/main/java/dan200/computercraft/api/pocket/IPocketAccess.java

@@ -23,26 +23,22 @@ public interface IPocketAccess
     Entity getEntity();
 
     /**
-     * Get the colour of the pocket computer's light.
+     * Get the colour of this pocket computer's light as a RGB number.
      *
-     * See {@link #setLight(int)} for the values this may return.
-     *
-     * @return The colour of the pocket computer's light.
+     * @return The colour this light is. This will be a RGB colour between {@code 0x000000} and {@code 0xFFFFFF} or
+     * -1 if it has no colour.
      * @see #setLight(int)
      */
     int getLight();
 
     /**
-     * Set the colour of the pocket computer's light. Use {@link 0} to turn it off.
+     * Set the colour of the pocket computer's light to a RGB number.
      *
-     * Colours take the form of an integer between 0 and 15, using the opposite order to those in
-     * {@link <a href="http://www.computercraft.info/wiki/Colors_(API)#Colors">The colors API</a>}  - so 0 being black,
-     * 1 representing red, 2 representing green all the way up to 15 for white.
-     *
-     * @param value The colour the light should have.
+     * @param colour The colour this modem's light will be changed to. This should be a RGB colour between
+     *               {@code 0x000000} and {@code 0xFFFFFF} or -1 to reset to the default colour.
      * @see #getLight()
      */
-    void setLight( int value );
+    void setLight( int colour );
 
     /**
      * Get the upgrade-specific NBT.

src/main/java/dan200/computercraft/api/turtle/ITurtleAccess.java

@@ -127,7 +127,7 @@ public interface ITurtleAccess
     void setColour( int colour );
 
     /**
-     * Set the colour of the turtle to a RGB number.
+     * Get the colour of this turtle as a RGB number.
      *
      * @return The colour this turtle is. This will be a RGB colour between {@code 0x000000} and {@code 0xFFFFFF} or
      * -1 if it has no colour.

src/main/java/dan200/computercraft/client/proxy/ComputerCraftProxyClient.java

@@ -192,8 +192,8 @@ public class ComputerCraftProxyClient extends ComputerCraftProxyCommon
             {
                 if( layout != 1 ) return 0xFFFFFF;
 
-                Colour colour = Colour.fromInt( ComputerCraft.Items.pocketComputer.getLightState( stack ) );
-                return colour == null ? Colour.Black.getHex() : colour.getHex();
+                int colour = ComputerCraft.Items.pocketComputer.getLightState( stack );
+                return colour == -1 ? Colour.Black.getHex() : colour;
             }
         }, ComputerCraft.Items.pocketComputer );
 

src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java

@@ -13,6 +13,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
+import net.minecraftforge.common.util.Constants;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -40,19 +41,32 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
     @Override
     public int getLight()
     {
-        int value = getUserData().getInteger( "modemLight" );
-        return value >= 0 && value <= 15 ? value : 0;
+        NBTTagCompound tag = getUserData();
+        if( tag.hasKey( "modemLight", Constants.NBT.TAG_ANY_NUMERIC ) )
+        {
+            return tag.getInteger( "modemLight" );
+        }
+        else
+        {
+            return -1;
+        }
     }
 
     @Override
-    public void setLight( int value )
+    public void setLight( int colour )
     {
-        if( value < 0 || value > 15 ) throw new IllegalArgumentException( "Colour out of bounds" );
-
         NBTTagCompound tag = getUserData();
-        if( tag.getInteger( "modemLight" ) != value )
+        if( colour >= 0 && colour <= 0xFFFFFF )
         {
-            tag.setInteger( "modemLight", value );
+            if( !tag.hasKey( "modemLight", Constants.NBT.TAG_ANY_NUMERIC ) || tag.getInteger( "modemLight" ) != colour )
+            {
+                tag.setInteger( "modemLight", colour );
+                updateUserData();
+            }
+        }
+        else if( tag.hasKey( "modemLight", Constants.NBT.TAG_ANY_NUMERIC ) )
+        {
+            tag.removeTag( "modemLight" );
             updateUserData();
         }
     }

src/main/java/dan200/computercraft/shared/pocket/items/ItemPocketComputer.java

@@ -457,12 +457,12 @@ public class ItemPocketComputer extends Item implements IComputerItem, IMedia
         if( computer != null && computer.isOn() )
         {
             NBTTagCompound computerNBT = computer.getUserData();
-            if( computerNBT != null )
+            if( computerNBT != null && computerNBT.hasKey( "modemLight", Constants.NBT.TAG_ANY_NUMERIC ) )
             {
                 return computerNBT.getInteger( "modemLight" );
             }
         }
-        return 0;
+        return -1;
     }
 
     public IPocketUpgrade getUpgrade( ItemStack stack )

src/main/java/dan200/computercraft/shared/pocket/peripherals/PocketModem.java

@@ -5,7 +5,6 @@ import dan200.computercraft.api.pocket.IPocketAccess;
 import dan200.computercraft.api.pocket.IPocketUpgrade;
 import dan200.computercraft.shared.peripheral.PeripheralType;
 import dan200.computercraft.shared.peripheral.common.PeripheralItemFactory;
-import dan200.computercraft.shared.util.Colour;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.item.ItemStack;
@@ -77,7 +76,7 @@ public class PocketModem implements IPocketUpgrade
                 modem.setLocation( entity.getEntityWorld(), entity.posX, entity.posY, entity.posZ );
             }
 
-            access.setLight( modem.isActive() ? Colour.Red.ordinal() : Colour.Black.ordinal() );
+            access.setLight( modem.isActive() ? 0xBA0000 : -1 );
         }
     }