Add setColour overload with table parameter

src/main/java/dan200/computercraft/core/apis/TermAPI.java

@@ -10,8 +10,13 @@ import dan200.computercraft.api.lua.ILuaContext;
 import dan200.computercraft.api.lua.LuaException;
 import dan200.computercraft.core.computer.IComputerEnvironment;
 import dan200.computercraft.core.terminal.Terminal;
+import dan200.computercraft.shared.util.Palette;
 import org.apache.commons.lang3.ArrayUtils;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
 public class TermAPI implements ILuaAPI
 {
     private final Terminal m_terminal;
@@ -106,6 +111,46 @@ public class TermAPI implements ILuaAPI
         };
     }
 
+    public static void setColour( Terminal terminal, int colour, float r, float g, float b )
+    {
+        if( terminal.getPalette() != null )
+        {
+            terminal.getPalette().setColour( colour, r, g, b );
+            terminal.setChanged();
+        }
+    }
+
+    public static void setColour( Terminal terminal, HashMap<Object, Object> colours) throws LuaException
+    {
+        final double lg2 = Math.log( 2 );
+
+        for(Map.Entry<Object, Object> e : colours.entrySet())
+        {
+            if(e.getKey() instanceof Double)
+            {
+                int index = 15 - (int)( Math.log( (Double)e.getKey() ) / lg2 );
+
+                try
+                {
+                    @SuppressWarnings({ "unchecked" }) // There isn't really a nice way around this :(
+                    HashMap<Object, Object> colour = (HashMap<Object, Object>) e.getValue();
+
+                    setColour(
+                            terminal,
+                            index,
+                            ( (Double)colour.get( 1.0 ) ).floatValue(),
+                            ( (Double)colour.get( 2.0 ) ).floatValue(),
+                            ( (Double)colour.get( 3.0 ) ).floatValue()
+                    );
+                }
+                catch(ClassCastException cce)
+                {
+                    throw new LuaException( "Malformed colour table" );
+                }
+            }
+        }
+    }
+
     @Override
     public Object[] callMethod( ILuaContext context, int method, Object[] args ) throws LuaException
     {
@@ -279,30 +324,31 @@ public class TermAPI implements ILuaAPI
             case 20:
             {
                 // setColour/setColor
-                if( args.length < 4 || !(args[0] instanceof Double) || !(args[1] instanceof Double) || !(args[2] instanceof Double) || !(args[3] instanceof Double) ) // toil and trouble
-                {
-                    throw new LuaException( "Expected number, number, number, number" );
-                }
-
                 if( !m_environment.isColour() )
                 {
                     // Make sure you can't circumvent greyscale terminals with this function.
                     throw new LuaException( "Colour not supported" );
                 }
 
-                int colour = 15 - parseColour( args, m_environment.isColour() );
+                if(args.length >= 1 && args[0] instanceof HashMap)
-                float r = ((Double)args[1]).floatValue();
-                float g = ((Double)args[2]).floatValue();
-                float b = ((Double)args[3]).floatValue();
-
-                synchronized( m_terminal )
                 {
-                    if( m_terminal.getPalette() != null )
+                    @SuppressWarnings( { "unchecked" } ) // There isn't really a nice way around this :(
-                    {
+                    HashMap<Object, Object> colourTbl = (HashMap<Object, Object>)args[0];
-                        m_terminal.getPalette().setColour( colour, r, g, b );
+                    setColour( m_terminal, colourTbl );
-                        m_terminal.setChanged();
-                    }
                 }
+                else if (args.length >= 4 && args[0] instanceof Double && args[1] instanceof Double && args[2] instanceof Double && args[3] instanceof Double)
+                {
+                    int colour = 15 - parseColour( args, m_environment.isColour() );
+                    float r = ((Double)args[1]).floatValue();
+                    float g = ((Double)args[2]).floatValue();
+                    float b = ((Double)args[3]).floatValue();
+                    setColour( m_terminal, colour, r, g, b );
+                }
+                else
+                {
+                    throw new LuaException( "Expected table or number, number, number, number" );
+                }
+
                 return null;
             }
             case 21:

src/main/java/dan200/computercraft/shared/peripheral/monitor/MonitorPeripheral.java

@@ -14,6 +14,8 @@ import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.shared.util.Palette;
 import org.apache.commons.lang3.ArrayUtils;
 
+import java.util.HashMap;
+
 public class MonitorPeripheral implements IPeripheral
 {
     private final TileMonitor m_monitor;
@@ -229,14 +231,6 @@ public class MonitorPeripheral implements IPeripheral
             {
                 // setColour/setColor
                 Terminal terminal = m_monitor.getTerminal().getTerminal();
-                Palette palette = terminal.getPalette();
-
-                // setColour/setColor
-                if( args.length < 4 || !(args[0] instanceof Double) || !(args[1] instanceof Double) || !(args[2] instanceof Double) || !(args[3] instanceof Double) )
-                {
-                    throw new LuaException( "Expected number, number, number, number" );
-                }
-
                 boolean isColour = m_monitor.getTerminal().isColour();
 
                 if( !isColour )
@@ -244,15 +238,25 @@ public class MonitorPeripheral implements IPeripheral
                     throw new LuaException( "Colour not supported" );
                 }
 
-                int colour = 15 - dan200.computercraft.core.apis.TermAPI.parseColour( args, true );
+                if(args.length >= 1 && args[0] instanceof HashMap )
-                float r = ((Double)args[1]).floatValue();
-                float g = ((Double)args[2]).floatValue();
-                float b = ((Double)args[3]).floatValue();
-
-                if( palette != null )
                 {
-                    palette.setColour( colour, r, g, b );
+                    @SuppressWarnings( { "unchecked" } ) // There isn't really a nice way around this :(
+                    HashMap<Object, Object> colourTbl = (HashMap<Object, Object>)args[0];
+                    dan200.computercraft.core.apis.TermAPI.setColour( terminal, colourTbl );
                 }
+                else if (args.length >= 4 && args[0] instanceof Double && args[1] instanceof Double && args[2] instanceof Double && args[3] instanceof Double)
+                {
+                    int colour = 15 - dan200.computercraft.core.apis.TermAPI.parseColour( args, true );
+                    float r = ((Double)args[1]).floatValue();
+                    float g = ((Double)args[2]).floatValue();
+                    float b = ((Double)args[3]).floatValue();
+                    dan200.computercraft.core.apis.TermAPI.setColour( terminal, colour, r, g, b );
+                }
+                else
+                {
+                    throw new LuaException( "Expected table or number, number, number, number" );
+                }
+
                 return null;
             }
             case 22:

src/main/resources/assets/computercraft/lua/rom/apis/window

@@ -107,9 +107,7 @@ function create( parent, nX, nY, nWidth, nHeight, bStartVisible )
     end
 
     local function updatePalette()
-        for k,v in pairs(tPalette) do
+        return parent.setColour( tPalette )
-            parent.setColour( k, table.unpack( v ) )
-        end
     end
 
     local function internalBlit( sText, sTextColor, sBackgroundColor )
@@ -289,10 +287,16 @@ function create( parent, nX, nY, nWidth, nHeight, bStartVisible )
     end
 
     function window.setColour( colour, r, g, b )
-        local tCol = tPalette[ colour ]
+        if type(colour) == "table" then
-        tCol[1] = r
+            for k,v in pairs(colour) do
-        tCol[2] = g
+                tPalette[k] = v
-        tCol[3] = b
+            end
+        else
+            local tCol = tPalette[ colour ]
+            tCol[1] = r
+            tCol[2] = g
+            tCol[3] = b
+        end
 
         if bVisible then
             return updatePalette()