Add block blacklist for magnets (#80)

Co-authored-by: Super <26164930+EmperorSuper@users.noreply.github.com>

src/main/java/com/brandon3055/draconicevolution/common/handler/ConfigHandler.java

@@ -55,6 +55,8 @@ public class ConfigHandler {
     public static boolean enableFlight;
     private static String[] itemDislocatorBlacklist;
     public static Map<String, Integer> itemDislocatorBlacklistMap = new HashMap<String, Integer>();
+    private static String[] itemDislocatorBlockBlacklist;
+    public static Map<String, Integer> itemDislocatorBlockBlacklistMap = new HashMap<String, Integer>();
     public static boolean itemDislocatorDisableSound;
 
     // spawner
@@ -303,7 +305,12 @@ public class ConfigHandler {
                     "Item Dislocator Blacklist",
                     Configuration.CATEGORY_GENERAL,
                     new String[] { "appliedenergistics2:item.ItemCrystalSeed" },
-                    "A list of items of items that should be ignored by the item dislocator. Use the items registry name e.g. minecraft:apple you can also add a meta value like so minecraft:wool|4");
+                    "A list of items that should be ignored by the item dislocator. Use the items registry name e.g. minecraft:apple you can also add a meta value like so minecraft:wool|4");
+            itemDislocatorBlockBlacklist = config.getStringList(
+                    "Item Dislocator Block Blacklist",
+                    Configuration.CATEGORY_GENERAL,
+                    new String[] { "Thaumcraft:blockAlchemyFurnace|0", "Botania:pool" },
+                    "A list of blocks that will cause items above or inside of them to be ignored by the item dislocator. Use the items registry name e.g. minecraft:apple you can also add a meta value like so minecraft:wool|4");
             itemDislocatorDisableSound = config.get(
                     Configuration.CATEGORY_GENERAL,
                     "Item Dislocator Disable Sound",
@@ -422,13 +429,35 @@ public class ConfigHandler {
             itemDislocatorBlacklistMap.clear();
             for (String s : itemDislocatorBlacklist) {
                 if (s.contains("|")) {
-                    itemDislocatorBlacklistMap
+                    try {
-                            .put(s.substring(0, s.indexOf("|")), Integer.parseInt(s.substring(s.indexOf("|") + 1)));
+                        itemDislocatorBlacklistMap
+                                .put(s.substring(0, s.indexOf("|")), Integer.parseInt(s.substring(s.indexOf("|") + 1)));
+                    } catch (NumberFormatException e) {
+                        LogHelper.error("Error while loading dislocator blacklist.");
+                        LogHelper.error("Could not parse meta (damage) for \"" + s + "\"");
+                        e.printStackTrace();
+                    }
                 } else {
                     itemDislocatorBlacklistMap.put(s, -1);
                 }
             }
 
+            itemDislocatorBlockBlacklistMap.clear();
+            for (String s : itemDislocatorBlockBlacklist) {
+                if (s.contains("|")) {
+                    try {
+                        itemDislocatorBlockBlacklistMap
+                                .put(s.substring(0, s.indexOf("|")), Integer.parseInt(s.substring(s.indexOf("|") + 1)));
+                    } catch (NumberFormatException e) {
+                        LogHelper.error("Error while loading dislocator block blacklist.");
+                        LogHelper.error("Could not parse meta (damage) for \"" + s + "\"");
+                        e.printStackTrace();
+                    }
+                } else {
+                    itemDislocatorBlockBlacklistMap.put(s, -1);
+                }
+            }
+
             if (disableLog) {
                 disableLog = false;
                 LogHelper.warn("###########################################");

src/main/java/com/brandon3055/draconicevolution/common/items/tools/Magnet.java

@@ -3,6 +3,7 @@ package com.brandon3055.draconicevolution.common.items.tools;
 import java.util.ArrayList;
 import java.util.List;
 
+import net.minecraft.block.Block;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityClientPlayerMP;
 import net.minecraft.client.renderer.texture.IIconRegister;
@@ -147,6 +148,24 @@ public class Magnet extends ItemDE implements IBauble, IConfigurableItem {
                 continue;
             }
 
+            int x = (int) Math.floor(item.posX);
+            int y = (int) Math.floor(item.posY);
+            int z = (int) Math.floor(item.posZ);
+
+            boolean skip = false;
+            for (int i = 0; i < 2; i++) {
+                Block block = world.getBlock(x, y - i, z);
+                String blockName = Item.itemRegistry.getNameForObject(Item.getItemFromBlock(block));
+                int meta = world.getBlockMetadata(x, y - i, z);
+                if (ConfigHandler.itemDislocatorBlockBlacklistMap.containsKey(blockName)
+                        && (ConfigHandler.itemDislocatorBlockBlacklistMap.get(blockName) == -1
+                                || ConfigHandler.itemDislocatorBlockBlacklistMap.get(blockName) == meta)) {
+                    skip = true;
+                }
+            }
+
+            if (skip) continue;
+
             if (!skipPlayerCheck) {
                 EntityPlayer closestPlayer = world.getClosestPlayerToEntity(item, range);
                 if (closestPlayer == null || closestPlayer != player) continue;