SendMapRegion.java

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package com.runehive.net.packet.out;
 
import com.runehive.net.codec.ByteModification;
import com.runehive.game.world.entity.mob.player.Player;
import com.runehive.net.packet.OutgoingPacket;
 
public class SendMapRegion extends OutgoingPacket {
 
    public SendMapRegion() {
        super(73, 4);
    }
 
    @Override
    public boolean encode(Player player) {
        player.lastPosition = player.getPosition().copy();
        
        // 317-style region in CHUNKS (8x8)
        int regionX = (player.getPosition().getX() >> 3);
        int regionY = (player.getPosition().getY() >> 3);
        
        // The client's scene base (chunk coords) is region - 6
        int sceneBaseChunkX = regionX - 6;
        int sceneBaseChunkY = regionY - 6;
        
        // Persist the exact base the client will use
        player.setSceneBaseChunks(sceneBaseChunkX, sceneBaseChunkY);
        
        System.out.printf("[MapRegion] sceneBaseChunks=(%d,%d) tiles=(%d,%d)%n",
            sceneBaseChunkX, sceneBaseChunkY,
            sceneBaseChunkX * 8, sceneBaseChunkY * 8
        );
        
        builder.writeShort(player.getPosition().getChunkX() + 6, ByteModification.ADD)
        .writeShort(player.getPosition().getChunkY() + 6);
        return true;
    }
 
}