From fd3ba6a55e5f607912383998cad9e21ddf83a5f0 Mon Sep 17 00:00:00 2001
From: payonel <payonel@hotmail.com>
Date: Sat, 6 Oct 2018 18:32:10 -0700
Subject: [PATCH] add scanContentsAt debug card method

---
 .../cil/oc/server/component/DebugCard.scala   | 50 ++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/src/main/scala/li/cil/oc/server/component/DebugCard.scala b/src/main/scala/li/cil/oc/server/component/DebugCard.scala
index a1be1d594..e5e58b45b 100644
--- a/src/main/scala/li/cil/oc/server/component/DebugCard.scala
+++ b/src/main/scala/li/cil/oc/server/component/DebugCard.scala
@@ -23,10 +23,13 @@ import li.cil.oc.server.network.DebugNetwork.DebugNode
 import li.cil.oc.server.component.DebugCard.{AccessContext, CommandSender}
 import li.cil.oc.util.BlockPosition
 import li.cil.oc.util.ExtendedArguments._
+import li.cil.oc.util.ExtendedBlock._
 import li.cil.oc.util.ExtendedNBT._
 import li.cil.oc.util.ExtendedWorld._
 import li.cil.oc.util.InventoryUtils
 import net.minecraft.block.Block
+import net.minecraft.entity.item.EntityMinecart
+import net.minecraft.entity.{Entity, EntityLivingBase}
 import net.minecraft.entity.player.EntityPlayerMP
 import net.minecraft.item.Item
 import net.minecraft.item.ItemStack
@@ -37,10 +40,11 @@ import net.minecraft.tileentity.TileEntity
 import net.minecraft.util.IChatComponent
 import net.minecraft.world.{World, WorldServer, WorldSettings}
 import net.minecraft.world.WorldSettings.GameType
-import net.minecraftforge.common.DimensionManager
+import net.minecraftforge.common.{DimensionManager, MinecraftForge}
 import net.minecraftforge.common.util.FakePlayer
 import net.minecraftforge.common.util.FakePlayerFactory
 import net.minecraftforge.common.util.ForgeDirection
+import net.minecraftforge.event.world.BlockEvent
 import net.minecraftforge.fluids.FluidRegistry
 import net.minecraftforge.fluids.FluidStack
 import net.minecraftforge.fluids.IFluidHandler
@@ -129,6 +133,50 @@ class DebugCard(host: EnvironmentHost) extends prefab.ManagedEnvironment with De
     result(MinecraftServer.getServer.getAllUsernames)
   }
 
+
+  @Callback(doc = "function(x: number, y: number, z: number[, worldId: number]):boolean, string, table -- returns contents at the location in world by id (default host world)")
+  def scanContentsAt(context: Context, args: Arguments): Array[AnyRef] = {
+    checkAccess()
+    val x = args.checkInteger(0)
+    val y = args.checkInteger(1)
+    val z = args.checkInteger(2)
+    val worldServer = if (args.count() > 3) DimensionManager.getWorld(args.checkInteger(3)) else host.world
+    val world = worldServer.world
+
+    val position: BlockPosition = new BlockPosition(x, y, z, Option(world))
+    val fakePlayer = FakePlayerFactory.get(world.asInstanceOf[WorldServer], Settings.get.fakePlayerProfile)
+    fakePlayer.posX = position.x + 0.5
+    fakePlayer.posY = position.y + 0.5
+    fakePlayer.posZ = position.z + 0.5
+
+    Option(world.findNearestEntityWithinAABB(classOf[Entity], position.bounds, fakePlayer)) match {
+      case Some(living: EntityLivingBase) => result(true, "EntityLivingBase", living)
+      case Some(minecart: EntityMinecart) => result(true, "EntityMinecart", minecart)
+      case _ =>
+        val block = world.getBlock(position)
+        val metadata = world.getBlockMetadata(position)
+        if (block.isAir(position)) {
+          result(false, "air", block)
+        }
+        else if (FluidRegistry.lookupFluidForBlock(block) != null) {
+          val event = new BlockEvent.BreakEvent(position.x, position.y, position.z, world, block, metadata, fakePlayer)
+          MinecraftForge.EVENT_BUS.post(event)
+          result(event.isCanceled, "liquid", block)
+        }
+        else if (block.isReplaceable(position)) {
+          val event = new BlockEvent.BreakEvent(position.x, position.y, position.z, world, block, metadata, fakePlayer)
+          MinecraftForge.EVENT_BUS.post(event)
+          result(event.isCanceled, "replaceable", block)
+        }
+        else if (block.getCollisionBoundingBoxFromPool(position) == null) {
+          result(true, "passable", block)
+        }
+        else {
+          result(true, "solid", block)
+        }
+    }
+  }
+
   @Callback(doc = """function(name:string):boolean -- Get whether a mod or API is loaded.""")
   def isModLoaded(context: Context, args: Arguments): Array[AnyRef] = {
     checkAccess()