AppearancePlayerBlock.java

package net.scapeemulator.game.update;

import net.scapeemulator.game.model.player.Equipment;
import net.scapeemulator.game.model.player.EquipmentDefinition;
import net.scapeemulator.game.model.player.Item;
import net.scapeemulator.game.model.player.Player;
import net.scapeemulator.game.model.player.appearance.Appearance;
import net.scapeemulator.game.model.player.appearance.Appearance.Feature;
import net.scapeemulator.game.model.player.appearance.Gender;
import net.scapeemulator.game.model.player.inventory.Inventory;
import net.scapeemulator.game.model.player.skills.prayer.HeadIcon;
import net.scapeemulator.game.msg.impl.PlayerUpdateMessage;
import net.scapeemulator.game.net.game.DataTransformation;
import net.scapeemulator.game.net.game.DataType;
import net.scapeemulator.game.net.game.GameFrameBuilder;
import net.scapeemulator.util.Base37Utils;

public final class AppearancePlayerBlock extends PlayerBlock {

    private final String username;
    private final boolean hidden;
    private final Appearance appearance;
    private final HeadIcon headIcon;
    private final Inventory equipment;
    private final int stance, combat, skill, pnpc;

    public AppearancePlayerBlock(Player player) {
        super(0x4);
        username = player.getUsername();
        hidden = player.isHidden();
        appearance = player.getAppearance();
        headIcon = player.getHeadIcon();
        equipment = new Inventory(player.getEquipment());
        stance = player.getStance();
        combat = player.getSkillSet().getCombatLevel();
        skill = player.getSkillSet().getTotalLevel();
        pnpc = player.getPNPC();
    }

    @Override
    public void encode(PlayerUpdateMessage message, GameFrameBuilder builder) {
        Gender gender = appearance.getGender();

        GameFrameBuilder propertiesBuilder = new GameFrameBuilder(builder.getAllocator());

        /*
         * flags field: bit 0 - gender (0 = male, 1 = female) bit 1 - unused bit 2 - show skill
         * level instead of combat level bit 3-5 - unknown bit 6-7 - unknown
         */
        int flags = gender.ordinal();
        propertiesBuilder.put(DataType.BYTE, flags);
        propertiesBuilder.put(DataType.BYTE, -1); // pk icon
        propertiesBuilder.put(DataType.BYTE, headIcon.getIconId());

        if (hidden) {
            for (int i = 0; i < 12; i++) {
                propertiesBuilder.put(DataType.BYTE, 0);
            }
        } else {
            if (pnpc > -1) {
                propertiesBuilder.put(DataType.SHORT, -1);
                propertiesBuilder.put(DataType.SHORT, pnpc);
                propertiesBuilder.put(DataType.BYTE, 255);
            } else {
                Item item = equipment.get(Equipment.HEAD);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.CAPE);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.NECK);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.WEAPON);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 + EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.BODY);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.TORSO));
                }

                item = equipment.get(Equipment.SHIELD);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                boolean fullBody = false;
                item = equipment.get(Equipment.BODY);
                if (item != null)
                    fullBody = EquipmentDefinition.forId(item.getId()).isFullBody();

                if (!fullBody) {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.ARMS));
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.LEGS);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.LEGS));
                }

                boolean fullHelm = false, fullMask = false;
                item = equipment.get(Equipment.HEAD);
                if (item != null) {
                    fullHelm = EquipmentDefinition.forId(item.getId()).isFullHelm();
                    fullMask = EquipmentDefinition.forId(item.getId()).isFullMask();
                }
                if (!fullHelm) {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.HAIR));
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }

                item = equipment.get(Equipment.HANDS);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.WRISTS));
                }

                item = equipment.get(Equipment.FEET);
                if (item != null) {
                    propertiesBuilder.put(DataType.SHORT, 0x8000 | EquipmentDefinition.forId(item.getId()).getEquipmentId());
                } else {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.FEET));
                }

                item = equipment.get(Equipment.HEAD); // TODO check
                if (gender == Gender.MALE && !fullMask) {
                    propertiesBuilder.put(DataType.SHORT, 0x100 | appearance.getStyle(Feature.FACIAL_HAIR));
                } else {
                    propertiesBuilder.put(DataType.BYTE, 0);
                }
            }
        }

        propertiesBuilder.put(DataType.BYTE, appearance.getColor(Feature.HAIR));
        propertiesBuilder.put(DataType.BYTE, appearance.getColor(Feature.TORSO));
        propertiesBuilder.put(DataType.BYTE, appearance.getColor(Feature.LEGS));
        propertiesBuilder.put(DataType.BYTE, appearance.getColor(Feature.FEET));
        propertiesBuilder.put(DataType.BYTE, appearance.getColor(Feature.SKIN));
        propertiesBuilder.put(DataType.SHORT, stance);
        propertiesBuilder.put(DataType.LONG, Base37Utils.encodeBase37(username));
        propertiesBuilder.put(DataType.BYTE, combat);
        if ((flags & 0x4) != 0) {
            propertiesBuilder.put(DataType.SHORT, skill);
        } else {
            propertiesBuilder.put(DataType.BYTE, 0);
            propertiesBuilder.put(DataType.BYTE, 0);
        }
        propertiesBuilder.put(DataType.BYTE, 0);
        /* if the above byte is non-zero, four unknown shorts are written */

        builder.put(DataType.BYTE, DataTransformation.ADD, propertiesBuilder.getLength());
        builder.putRawBuilder(propertiesBuilder);
    }

}