Freecam Schematica Compatibility (#481)

Author: rfresh2

src/main/java/com/lambda/mixin/render/MixinRenderGlobal.java

@@ -5,7 +5,10 @@
 import com.lambda.client.event.events.RenderEntityEvent;
 import com.lambda.client.module.modules.player.Freecam;
 import com.lambda.client.module.modules.render.SelectionHighlight;
+import com.lambda.client.util.Wrapper;
+import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.ViewFrustum;
 import net.minecraft.client.renderer.culling.ICamera;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
@@ -15,6 +18,7 @@
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.ModifyVariable;
+import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(RenderGlobal.class)
@@ -50,4 +54,16 @@ public BlockPos setupTerrainStoreFlooredChunkPosition(BlockPos playerPos) {
 
         return playerPos;
     }
+
+    @Redirect(method = "setupTerrain", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/renderer/ViewFrustum;updateChunkPositions(DD)V"))
+    public void updateSetupTerrain(ViewFrustum viewFrustum, double viewEntityX, double viewEntityZ) {
+        if (Freecam.INSTANCE.isEnabled()) {
+            EntityPlayerSP player = Wrapper.getPlayer();
+            if (player != null) {
+                viewEntityX = player.posX;
+                viewEntityZ = player.posZ;
+            }
+        }
+        viewFrustum.updateChunkPositions(viewEntityX, viewEntityZ);
+    }
 }

src/main/java/com/lambda/mixin/render/MixinViewFrustum.java

@@ -23,12 +23,13 @@ import com.lambda.client.util.threads.onMainThreadSafe
 import com.lambda.client.util.threads.runSafeR
 import com.lambda.client.util.threads.safeListener
 import kotlinx.coroutines.runBlocking
-import net.minecraft.client.entity.EntityOtherPlayerMP
 import net.minecraft.client.entity.EntityPlayerSP
 import net.minecraft.client.multiplayer.WorldClient
+import net.minecraft.client.network.NetHandlerPlayClient
 import net.minecraft.entity.Entity
 import net.minecraft.entity.MoverType
 import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.network.Packet
 import net.minecraft.network.play.client.CPacketUseEntity
 import net.minecraft.network.play.server.SPacketEntityHeadLook
 import net.minecraft.util.MovementInput
@@ -265,7 +266,7 @@ object Freecam : Module(
         }
     }
 
-    private class FakeCamera(world: WorldClient, val player: EntityPlayerSP) : EntityOtherPlayerMP(world, mc.session.profile) {
+    private class FakeCamera(world: WorldClient, val player: EntityPlayerSP) : EntityPlayerSP(mc, world, NoOpNetHandlerPlayerClient(player.connection), player.statFileWriter, player.recipeBook) {
         init {
             copyLocationAndAnglesFrom(player)
             capabilities.allowFlying = true
@@ -276,6 +277,7 @@ object Freecam : Module(
             // Update inventory
             inventory.copyInventory(player.inventory)
 
+            this.movementInput = MovementInput()
             // Update yaw head
             updateEntityActionState()
 
@@ -331,6 +333,12 @@ object Freecam : Module(
         override fun isInvisibleToPlayer(player: EntityPlayer) = true
     }
 
+    private class NoOpNetHandlerPlayerClient(realNetHandler: NetHandlerPlayClient) : NetHandlerPlayClient(mc, null, realNetHandler.networkManager, realNetHandler.gameProfile) {
+        override fun sendPacket(packetIn: Packet<*>) {
+            // no packets from freecam player, thanks
+        }
+    }
+
     /**
      * @param forward <Forward, Backward>
      * @param strafe <Left, Right>

src/main/kotlin/com/lambda/client/module/modules/player/Freecam.kt

@@ -24,11 +24,11 @@
     "accessor.network.AccessorCPacketPlayer",
     "accessor.network.AccessorCPacketUseEntity",
     "accessor.network.AccessorSPacketChat",
+    "accessor.network.AccessorSPacketEntity",
+    "accessor.network.AccessorSPacketEntityHeadLook",
     "accessor.network.AccessorSPacketEntityVelocity",
     "accessor.network.AccessorSPacketExplosion",
     "accessor.network.AccessorSPacketPosLook",
-    "accessor.network.AccessorSPacketEntity",
-    "accessor.network.AccessorSPacketEntityHeadLook",
     "accessor.player.AccessorEntityPlayerSP",
     "accessor.player.AccessorPlayerControllerMP",
     "accessor.render.AccessorRenderGlobal",
@@ -75,7 +75,6 @@
     "render.MixinTileEntityRendererDispatcher",
     "render.MixinTileEntitySignRenderer",
     "render.MixinTileRendererDispatcher",
-    "render.MixinViewFrustum",
     "render.MixinVisGraph",
     "world.MixinBlock",
     "world.MixinBlockDragonEgg",