Remove object wrappers and use mixins to inject functionality

This causes hierarchy to be runelite-client -> runelite-api and
injected-client -> runescape-api -> runelite-api. The mixin injector
fufills the runelite-api interface with access to the runescape-api
interfaces. The mixins live in runelite-mixins and are not loaded within
the client.

Note the obfuscated client classes do not pass JVM verification on 7+,
so the mixins are currently set to target Java 6.

runelite-mixins/src/main/java/net/runelite/mixins/RSActorMixin.java

@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2016-2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.mixins;
+
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+import java.awt.image.BufferedImage;
+import net.runelite.api.Actor;
+import net.runelite.api.Perspective;
+import net.runelite.api.Point;
+import net.runelite.api.mixins.Inject;
+import net.runelite.api.mixins.Mixin;
+import net.runelite.api.mixins.Shadow;
+import net.runelite.rs.api.RSActor;
+import net.runelite.rs.api.RSClient;
+import net.runelite.rs.api.RSCombatInfo1;
+import net.runelite.rs.api.RSCombatInfo2;
+import net.runelite.rs.api.RSCombatInfoList;
+import net.runelite.rs.api.RSCombatInfoListHolder;
+import net.runelite.rs.api.RSNode;
+
+@Mixin(RSActor.class)
+public abstract class RSActorMixin implements RSActor
+{
+	@Shadow("clientInstance")
+	private static RSClient client;
+
+	@Inject
+	@Override
+	public Actor getInteracting()
+	{
+		int i = getRSInteracting();
+		if (i == -1)
+		{
+			return null;
+		}
+
+		if (i < 0x8000)
+		{
+			return client.getNpc(i);
+		}
+
+		i -= 0x8000;
+		return client.getPlayer(i);
+	}
+
+	@Inject
+	@Override
+	public int getHealthRatio()
+	{
+		RSCombatInfoList combatInfoList = getCombatInfoList();
+		if (combatInfoList != null)
+		{
+			RSNode node = combatInfoList.getNode();
+			RSNode next = node.getNext();
+			if (next instanceof RSCombatInfoListHolder)
+			{
+				RSCombatInfoListHolder combatInfoListWrapper = (RSCombatInfoListHolder) next;
+				RSCombatInfoList combatInfoList1 = combatInfoListWrapper.getCombatInfo1();
+
+				RSNode node2 = combatInfoList1.getNode();
+				RSNode next2 = node2.getNext();
+				if (next2 instanceof RSCombatInfo1)
+				{
+					RSCombatInfo1 combatInfo = (RSCombatInfo1) next2;
+					return combatInfo.getHealthRatio();
+				}
+			}
+		}
+		return -1;
+	}
+
+	@Inject
+	@Override
+	public int getHealth()
+	{
+		RSCombatInfoList combatInfoList = getCombatInfoList();
+		if (combatInfoList != null)
+		{
+			RSNode node = combatInfoList.getNode();
+			RSNode next = node.getNext();
+			if (next instanceof RSCombatInfoListHolder)
+			{
+				RSCombatInfoListHolder combatInfoListWrapper = (RSCombatInfoListHolder) next;
+				RSCombatInfo2 cf = combatInfoListWrapper.getCombatInfo2();
+				return cf.getHealthScale();
+			}
+		}
+		return -1;
+	}
+
+	@Inject
+	@Override
+	public Point getLocalLocation()
+	{
+		return new Point(getX(), getY());
+	}
+
+	@Inject
+	@Override
+	public Polygon getCanvasTilePoly()
+	{
+		return Perspective.getCanvasTilePoly(client, getLocalLocation());
+	}
+
+	@Inject
+	@Override
+	public Point getCanvasTextLocation(Graphics2D graphics, String text, int zOffset)
+	{
+		return Perspective.getCanvasTextLocation(client, graphics, getLocalLocation(), text, zOffset);
+	}
+
+	@Inject
+	@Override
+	public Point getCanvasImageLocation(Graphics2D graphics, BufferedImage image, int zOffset)
+	{
+		return Perspective.getCanvasImageLocation(client, graphics, getLocalLocation(), image, zOffset);
+	}
+
+	@Inject
+	@Override
+	public Point getMinimapLocation()
+	{
+		return Perspective.worldToMiniMap(client, getX(), getY());
+	}
+}