package com.macfpsboost;

import net.fabricmc.api.ClientModInitializer;
import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.particle.ParticleManager;
import net.minecraft.entity.Entity;

public class MacFpsBoostMod implements ClientModInitializer {

    private static final double ENTITY_CULL_DISTANCE_SQ = 128 * 128;
    private static final int MAX_PARTICLES = 4000;

    @Override
    public void onInitializeClient() {

        System.out.println("[OptiMac] Initialized for Minecraft 1.21.11 — author: L1nKar");

        ClientTickEvents.END_CLIENT_TICK.register(client -> {

            if (client.world == null || client.player == null) {
                return;
            }

            optimizeEntities(client);
            optimizeParticles(client);
            optimizeRendering(client);
        });
    }

    private void optimizeEntities(MinecraftClient client) {

        for (Entity entity : client.world.getEntities()) {

            if (entity == client.player) continue;

            double distance = entity.squaredDistanceTo(client.player);

            if (distance > ENTITY_CULL_DISTANCE_SQ) {
                entity.setInvisible(true);
            } else {
                entity.setInvisible(false);
            }
        }
    }

    private void optimizeParticles(MinecraftClient client) {

        ParticleManager particles = client.particleManager;

        try {
            int count = particles.particles.size();

            if (count > MAX_PARTICLES) {

                int remove = count - MAX_PARTICLES;

                for (int i = 0; i < remove; i++) {
                    particles.particles.clear();
                }
            }

        } catch (Exception ignored) {
        }
    }

    private void optimizeRendering(MinecraftClient client) {

        client.worldRenderer.reload();
    }
}