From d66c2f2f5d79c81109a92aea7e0ddd975922a4f5 Mon Sep 17 00:00:00 2001
From: creeper123123321 <creeper123123321@gmail.com>
Date: Thu, 17 Jan 2019 16:02:39 -0200
Subject: [PATCH] Connect grass block to snow

(cherry picked from commit 69b0d43c9825d896374fc26246410530c5b7495f)
---
 .../blockconnections/ConnectionData.java      |  2 +-
 .../SnowyGrassConnectionHandler.java          | 49 +++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/SnowyGrassConnectionHandler.java

diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/ConnectionData.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/ConnectionData.java
index ef39faec2..010e79f98 100644
--- a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/ConnectionData.java
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/ConnectionData.java
@@ -168,8 +168,8 @@ public class ConnectionData {
 		BasicFenceConnectionHandler.init();
 		NetherFenceConnectionHandler.init();
 		WallConnectionHandler.init();
-		MelonConnectionHandler.init();
 		GlassConnectionHandler.init();
+		SnowyGrassConnectionHandler.init();
 		ChestConnectionHandler.init();
 		DoorConnectionHandler.init();
 		RedstoneConnectionHandler.init();
diff --git a/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/SnowyGrassConnectionHandler.java b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/SnowyGrassConnectionHandler.java
new file mode 100644
index 000000000..aa4e4ccc6
--- /dev/null
+++ b/common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/blockconnections/SnowyGrassConnectionHandler.java
@@ -0,0 +1,49 @@
+package us.myles.ViaVersion.protocols.protocol1_13to1_12_2.blockconnections;
+
+import us.myles.ViaVersion.api.Pair;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.minecraft.BlockFace;
+import us.myles.ViaVersion.api.minecraft.Position;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class SnowyGrassConnectionHandler extends ConnectionHandler {
+    private static Map<Pair<Integer, Boolean>, Integer> grassBlocks = new HashMap<>();
+    private static Set<Integer> snows = new HashSet<>();
+
+    static void init() {
+        Set<String> snowyGrassBlocks = new HashSet<>();
+        snowyGrassBlocks.add("minecraft:grass_block");
+        snowyGrassBlocks.add("minecraft:podzol");
+        snowyGrassBlocks.add("minecraft:mycelium");
+
+        SnowyGrassConnectionHandler handler = new SnowyGrassConnectionHandler();
+        for (Map.Entry<String, Integer> blockState : ConnectionData.keyToId.entrySet()) {
+            WrappedBlockData data = WrappedBlockData.fromString(blockState.getKey());
+            if (snowyGrassBlocks.contains(data.getMinecraftKey())) {
+                ConnectionData.connectionHandlerMap.put(blockState.getValue(), handler);
+                data.set("snowy", "true");
+                grassBlocks.put(new Pair<>(blockState.getValue(), true), data.getBlockStateId());
+                data.set("snowy", "false");
+                grassBlocks.put(new Pair<>(blockState.getValue(), false), data.getBlockStateId());
+            }
+            if (data.getMinecraftKey().equals("minecraft:snow") || data.getMinecraftKey().equals("minecraft:snow_block")) {
+                ConnectionData.connectionHandlerMap.put(blockState.getValue(), handler);
+                snows.add(blockState.getValue());
+            }
+        }
+    }
+
+    @Override
+    public int connect(UserConnection user, Position position, int blockState) {
+        int blockUpId = getBlockData(user, position.getRelative(BlockFace.TOP));
+        Integer newId = grassBlocks.get(new Pair<>(blockState, snows.contains(blockUpId)));
+        if (newId != null) {
+            return newId;
+        }
+        return blockState;
+    }
+}
\ No newline at end of file