From bf286206470ce5ef569551d778f91de35a38e7f0 Mon Sep 17 00:00:00 2001
From: Lucas <no@thanks.com>
Date: Mon, 17 Jun 2019 21:46:23 +0200
Subject: [PATCH] Add occluder raw injector

---
 .../java/net/runelite/injector/Inject.java    |  3 +
 .../net/runelite/injector/raw/Occluder.java   | 83 +++++++++++++++++++
 .../net/runelite/injector/raw/RenderDraw.java |  2 +-
 3 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 injector-plugin/src/main/java/net/runelite/injector/raw/Occluder.java

diff --git a/injector-plugin/src/main/java/net/runelite/injector/Inject.java b/injector-plugin/src/main/java/net/runelite/injector/Inject.java
index 3e24a55374..b228e55e5e 100644
--- a/injector-plugin/src/main/java/net/runelite/injector/Inject.java
+++ b/injector-plugin/src/main/java/net/runelite/injector/Inject.java
@@ -48,6 +48,7 @@ import net.runelite.deob.deobfuscators.arithmetic.DMath;
 import net.runelite.injector.raw.ClearColorBuffer;
 import net.runelite.injector.raw.DrawAfterWidgets;
 import net.runelite.injector.raw.DrawMenu;
+import net.runelite.injector.raw.Occluder;
 import net.runelite.injector.raw.RasterizerHook;
 import net.runelite.injector.raw.RenderDraw;
 import net.runelite.injector.raw.ScriptVM;
@@ -76,6 +77,7 @@ public class Inject
 	private final ScriptVM scriptVM = new ScriptVM(this);
 	private final ClearColorBuffer clearColorBuffer = new ClearColorBuffer(this);
 	private final RenderDraw renderDraw = new RenderDraw(this);
+	private final Occluder occluder = new Occluder(this);
 
 	// deobfuscated contains exports etc to apply to vanilla
 	private final ClassGroup deobfuscated, vanilla;
@@ -334,6 +336,7 @@ public class Inject
 		clearColorBuffer.inject();
 		renderDraw.inject();
 		drawMenu.inject();
+		occluder.inject();
 	}
 
 	private java.lang.Class injectInterface(ClassFile cf, ClassFile other)
diff --git a/injector-plugin/src/main/java/net/runelite/injector/raw/Occluder.java b/injector-plugin/src/main/java/net/runelite/injector/raw/Occluder.java
new file mode 100644
index 0000000000..9dc2c716a7
--- /dev/null
+++ b/injector-plugin/src/main/java/net/runelite/injector/raw/Occluder.java
@@ -0,0 +1,83 @@
+package net.runelite.injector.raw;
+
+import com.google.common.base.Stopwatch;
+import java.util.ListIterator;
+import net.runelite.asm.Method;
+import net.runelite.asm.attributes.Code;
+import net.runelite.asm.attributes.code.Instruction;
+import net.runelite.asm.attributes.code.Instructions;
+import net.runelite.asm.attributes.code.instructions.BiPush;
+import net.runelite.injector.Inject;
+import net.runelite.injector.InjectUtil;
+import net.runelite.injector.InjectionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Occluder
+{
+	private final Inject inject;
+	private static final Logger log = LoggerFactory.getLogger(Occluder.class);
+	private static final byte OLDVALUE = 25;
+	private static final byte NEWVALUE = 90;
+
+	public Occluder(Inject inject)
+	{
+		this.inject = inject;
+	}
+
+	public void inject() throws InjectionException
+	{
+		Stopwatch stopwatch = Stopwatch.createStarted();
+		Method occlude = InjectUtil.findMethod(inject, "occlude");
+		int replaced = 0;
+
+		if (occlude == null)
+		{
+			throw new InjectionException("Occlude couldn't be found");
+		}
+
+		Code code = occlude.getCode();
+
+		if (code == null)
+		{
+			throw new InjectionException("Occlude code was null");
+		}
+
+		Instructions ins = code.getInstructions();
+
+		ListIterator<Instruction> it = ins.getInstructions().listIterator();
+
+		while (it.hasNext())
+		{
+			Instruction i = it.next();
+
+			if (!(i instanceof BiPush))
+			{
+				continue;
+			}
+
+			boolean shouldChange = (byte) ((BiPush) i).getConstant() == OLDVALUE;
+
+			if (!shouldChange)
+			{
+				continue;
+			}
+
+			replaced++;
+
+			Instruction biPush = new BiPush(ins, NEWVALUE);
+
+			it.set(biPush);
+		}
+
+		stopwatch.stop();
+
+		if (replaced != 10)
+		{
+			throw new InjectionException("Only found " + replaced + " 25's to replace in occlude instead of expected 10");
+		}
+
+		log.info("Changed {} values in occlude()", replaced);
+		log.info("occluder took {}", stopwatch.toString());
+	}
+}
diff --git a/injector-plugin/src/main/java/net/runelite/injector/raw/RenderDraw.java b/injector-plugin/src/main/java/net/runelite/injector/raw/RenderDraw.java
index bef73b133f..0d559df9ca 100644
--- a/injector-plugin/src/main/java/net/runelite/injector/raw/RenderDraw.java
+++ b/injector-plugin/src/main/java/net/runelite/injector/raw/RenderDraw.java
@@ -17,7 +17,7 @@ import org.slf4j.LoggerFactory;
 
 public class RenderDraw
 {
-	private static final Logger log = LoggerFactory.getLogger(ClearColorBuffer.class);
+	private static final Logger log = LoggerFactory.getLogger(RenderDraw.class);
 	private static final net.runelite.asm.pool.Method renderDraw = new net.runelite.asm.pool.Method(
 		new Class("net.runelite.client.callback.Hooks"),
 		"renderDraw",