forked from GeyserMC/Geyser
116 lines
4.4 KiB
Java
116 lines
4.4 KiB
Java
/*
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* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*
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*/
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package org.geysermc.connector.world;
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import com.nukkitx.math.vector.Vector2f;
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import com.nukkitx.math.vector.Vector3f;
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import com.nukkitx.protocol.bedrock.packet.TextPacket;
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import lombok.Getter;
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import lombok.NonNull;
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import lombok.RequiredArgsConstructor;
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import lombok.Setter;
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import org.geysermc.common.ChatColor;
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import org.geysermc.connector.entity.Entity;
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import org.geysermc.connector.entity.PlayerEntity;
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import org.geysermc.connector.network.session.GeyserSession;
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@Getter
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@Setter
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@RequiredArgsConstructor
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public class WorldBorder {
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private @NonNull Vector2f center;
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private @NonNull double radius;
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private @NonNull double oldRadius;
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private @NonNull double newRadius;
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private @NonNull long speed;
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private @NonNull int warningTime;
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private @NonNull int warningBlocks;
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private double minX;
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private double minZ;
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private double maxX;
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private double maxZ;
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public void onTick(GeyserSession session) {
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PlayerEntity player = session.getPlayerEntity();
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if(isNearEdge(player)) {
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session.sendActionBar(ChatColor.BOLD + "" + ChatColor.RED + "You are near the world border (" + (int) getDistanceToEdge(player) + " blocks)");
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}
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}
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/**
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* Updates the min and max positions of the world border.
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* This should be called every time there is a modifcation to either the center coordinates or the radius.
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*/
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public void update() {
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this.minX = Math.max(center.getX() - newRadius / 2.0D, -newRadius);
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this.minZ = Math.max(center.getY() - newRadius / 2.0D, -newRadius);
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this.maxX = Math.min(center.getX() + newRadius / 2.0D, newRadius);
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this.maxZ = Math.min(center.getY() + newRadius / 2.0D, newRadius);
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}
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/**
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* Checks if an entity is within the warning distance to the edge of the world border.
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* https://wiki.vg/Protocol#World_Border
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*/
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public boolean isNearEdge(Entity entity) {
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double distance = Math.max(Math.min(speed * 1000 * warningTime, Math.abs(newRadius - oldRadius)), warningBlocks);
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float entityDistance = (float) getDistanceToEdge(entity);
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if ((double) entityDistance < distance) {
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return true;
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}
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return false;
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}
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/**
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* Checks if an entity is inside the world border.
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*
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* This method needs to be improved as it doesn't account for when the world border
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* is currently changing size, it only accounts for the target size.
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*
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* Something similar to the method above should work.
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*/
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public boolean isInsideBorder(Entity entity) {
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return entity.getPosition().getX() > minX && entity.getPosition().getX() < maxX && entity.getPosition().getZ() > minZ && entity.getPosition().getZ() < maxZ;
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}
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/**
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* Calculates how close the entity is to the edge of the world border.
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*/
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public double getDistanceToEdge(Entity entity) {
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Vector3f pos = entity.getPosition();
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double minPosZ = pos.getZ() - minZ;
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double maxPosZ = maxZ - pos.getZ();
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double minPosX = pos.getX() - minX;
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double maxPosX = maxX - pos.getX();
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return Math.min(Math.min(Math.min(minPosX, maxPosX), minPosZ), maxPosZ);
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}
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} |