Initial 0.4.0 implementation of the Forge Mod API

1 files changed, 78 insertions, 0 deletions

diff --git a/src/main/java/net/hypixel/modapi/forge/ForgeModAPI.java b/src/main/java/net/hypixel/modapi/forge/ForgeModAPI.java
new file mode 100644
index 0000000..de29195
--- /dev/null
+++ b/src/main/java/net/hypixel/modapi/forge/ForgeModAPI.java
@@ -0,0 +1,78 @@
+package net.hypixel.modapi.forge;
+
+import io.netty.buffer.Unpooled;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import net.hypixel.modapi.HypixelModAPI;
+import net.hypixel.modapi.packet.HypixelPacket;
+import net.hypixel.modapi.serializer.PacketSerializer;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.network.NetHandlerPlayClient;
+import net.minecraft.network.Packet;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.network.play.client.C17PacketCustomPayload;
+import net.minecraft.network.play.server.S3FPacketCustomPayload;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.network.FMLNetworkEvent;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+@Mod(modid = ForgeModAPI.MODID, version = ForgeModAPI.VERSION, clientSideOnly = true, name = "Hypixel Mod API")
+public class ForgeModAPI {
+    public static final String MODID = "hypixel_mod_api";
+    public static final String VERSION = "0.4.0";
+    private static final Logger LOGGER = Logger.getLogger("HypixelModAPI");
+
+    @Mod.EventHandler
+    public void init(FMLPostInitializationEvent event) {
+        MinecraftForge.EVENT_BUS.register(this);
+        HypixelModAPI.getInstance().setPacketSender(ForgeModAPI::sendPacket);
+    }
+
+    @SubscribeEvent
+    public void onServerConnect(FMLNetworkEvent.ClientConnectedToServerEvent event) {
+        event.manager.channel().pipeline().addBefore("packet_handler", "hypixel_mod_api_packet_handler", HypixelPacketHandler.INSTANCE);
+    }
+
+    private static boolean sendPacket(HypixelPacket packet) {
+        NetHandlerPlayClient netHandler = Minecraft.getMinecraft().getNetHandler();
+        if (netHandler == null) {
+            return false;
+        }
+
+        PacketBuffer buf = new PacketBuffer(Unpooled.buffer());
+        PacketSerializer serializer = new PacketSerializer(buf);
+        packet.write(serializer);
+        netHandler.addToSendQueue(new C17PacketCustomPayload(packet.getIdentifier(), buf));
+        return true;
+    }
+
+    private static class HypixelPacketHandler extends SimpleChannelInboundHandler<Packet<?>> {
+        private static final HypixelPacketHandler INSTANCE = new HypixelPacketHandler();
+
+        @Override
+        protected void channelRead0(ChannelHandlerContext ctx, Packet<?> msg) {
+            ctx.fireChannelRead(msg);
+
+            if (!(msg instanceof S3FPacketCustomPayload)) {
+                return;
+            }
+
+            S3FPacketCustomPayload packet = (S3FPacketCustomPayload) msg;
+            String identifier = packet.getChannelName();
+            if (!HypixelModAPI.getInstance().getRegistry().isRegistered(identifier)) {
+                return;
+            }
+
+            try {
+                HypixelModAPI.getInstance().handle(identifier, new PacketSerializer(packet.getBufferData()));
+            } catch (Exception e) {
+                LOGGER.log(Level.WARNING, "Failed to handle packet " + identifier, e);
+            }
+        }
+    }
+}