DreamCamSet.java

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/*
 * MIT License
 *
 * Copyright (c) 2025 Dreamfire Studio
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.dreamfirestudios.dreamcore.DreamCam;
 
import org.bukkit.Location;
import org.bukkit.entity.Entity;
import org.joml.Vector2f;
 
import java.util.List;
 
public record DreamCamSet(List<Location> points, LookAtType lookAtType, Object object) {
 
    public Location setRotation(Location location, Location fallbackTarget) {
        var current = location.clone();
        Vector2f newRotation = null;
 
        if (lookAtType == LookAtType.NoFocus || object == null) {
            newRotation = computeRotation(current, fallbackTarget);
        } else if (lookAtType == LookAtType.FixedFocus) {
            newRotation = computeRotation(current, (Location) object);
        } else if (lookAtType == LookAtType.MovingFocus) {
            var entity = (Entity) object;
            newRotation = entity != null ? computeRotation(current, entity.getLocation())
                    : computeRotation(current, fallbackTarget);
        }
 
        if (newRotation == null) return current;
        current.setYaw(newRotation.x);
        current.setPitch(newRotation.y);
        return current;
    }
 
    private Vector2f computeRotation(Location from, Location to) {
        var dx = to.getX() - from.getX();
        var dy = to.getY() - from.getY();
        var dz = to.getZ() - from.getZ();
        var distanceHorizontal = Math.sqrt(dx * dx + dz * dz);
        var yaw = (float) Math.toDegrees(Math.atan2(-dx, dz));
        var pitch = (float) Math.toDegrees(Math.atan2(dy, distanceHorizontal));
        return new Vector2f(yaw, pitch);
    }
}