67 lines
3.4 KiB
Java
67 lines
3.4 KiB
Java
package com.atsuishio.superbwarfare.tools;
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import com.atsuishio.superbwarfare.entity.IVehicleEntity;
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import com.atsuishio.superbwarfare.entity.projectile.ProjectileEntity;
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import net.minecraft.util.Mth;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.LivingEntity;
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import net.minecraft.world.entity.player.Player;
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import net.minecraft.world.entity.projectile.Projectile;
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import net.minecraft.world.level.ClipContext;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.phys.HitResult;
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import net.minecraft.world.phys.Vec3;
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import java.util.Comparator;
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import java.util.stream.StreamSupport;
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public class SeekTool {
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public static Entity seekEntity(Entity entity, Level level, double seekRange, double seekAngle) {
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return StreamSupport.stream(EntityFindUtil.getEntities(level).getAll().spliterator(), false)
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.filter(e -> {
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if (e.distanceTo(entity) <= seekRange && calculateAngle(e, entity) < seekAngle
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&& e != entity
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&& e.isAlive()
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&& e.getVehicle() == null
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&& !(e instanceof ProjectileEntity)
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&& !(e instanceof Projectile)) {
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return level.clip(new ClipContext(entity.getEyePosition(), e.getEyePosition(),
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ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, entity)).getType() != HitResult.Type.BLOCK;
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}
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return false;
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}).min(Comparator.comparingDouble(e -> calculateAngle(e, entity))).orElse(null);
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}
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public static Entity seekLivingEntity(Entity entity, Level level, double seekRange, double seekAngle) {
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return StreamSupport.stream(EntityFindUtil.getEntities(level).getAll().spliterator(), false)
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.filter(e -> {
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if (e.distanceTo(entity) <= seekRange && calculateAngle(e, entity) < seekAngle
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&& e != entity
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&& e.isAlive()
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&& (e instanceof LivingEntity || e instanceof IVehicleEntity)
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&& !(e instanceof Player player && (player.isCreative() || player.isSpectator()))
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&& (!e.isAlliedTo(entity) || e.getTeam() == null || e.getTeam().getName().equals("TDM"))) {
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return level.clip(new ClipContext(entity.getEyePosition(), e.getEyePosition(),
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ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, entity)).getType() != HitResult.Type.BLOCK;
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}
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return false;
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}).min(Comparator.comparingDouble(e -> calculateAngle(e, entity))).orElse(null);
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}
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private static double calculateAngle(Entity entityA, Entity entityB) {
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Vec3 start = new Vec3(entityA.getX() - entityB.getX(), entityA.getY() - entityB.getY(), entityA.getZ() - entityB.getZ());
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Vec3 end = entityB.getLookAngle();
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return calculateAngle(start, end);
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}
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private static double calculateAngle(Vec3 start, Vec3 end) {
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double startLength = start.length();
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double endLength = end.length();
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if (startLength > 0.0D && endLength > 0.0D) {
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return Math.toDegrees(Math.acos(Mth.clamp(start.dot(end) / (startLength * endLength), -1, 1)));
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} else {
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return 0.0D;
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}
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}
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}
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