package ru.betterend.particle;

import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.particle.AnimatedParticle;
import net.minecraft.client.particle.Particle;
import net.minecraft.client.particle.ParticleFactory;
import net.minecraft.client.particle.SpriteProvider;
import net.minecraft.client.world.ClientWorld;
import net.minecraft.particle.DefaultParticleType;
import net.minecraft.util.math.MathHelper;
import ru.betterend.util.MHelper;

@Environment(EnvType.CLIENT)
public class ParticleGlowingSphere extends AnimatedParticle {
	private int ticks;
	private double preVX;
	private double preVY;
	private double preVZ;
	private double nextVX;
	private double nextVY;
	private double nextVZ;
	
	protected ParticleGlowingSphere(ClientWorld world, double x, double y, double z, SpriteProvider sprites, double r, double g, double b) {
		super(world, x, y, z, sprites, 0);
		setSprite(sprites.getSprite(random));
		this.maxAge = MHelper.randRange(150, 300, random);
		this.scale = MHelper.randRange(0.05F, 0.15F, random);
		this.setTargetColor(15916745);
		this.setSpriteForAge(spriteProvider);
		
		preVX = random.nextGaussian() * 0.02;
		preVY = random.nextGaussian() * 0.02;
		preVZ = random.nextGaussian() * 0.02;
		
		nextVX = random.nextGaussian() * 0.02;
		nextVY = random.nextGaussian() * 0.02;
		nextVZ = random.nextGaussian() * 0.02;
	}
	
	@Override
	public void tick() {
		ticks ++;
		if (ticks > 30) {
			preVX = nextVX;
			preVY = nextVY;
			preVZ = nextVZ;
			nextVX = random.nextGaussian() * 0.02;
			nextVY = random.nextGaussian() * 0.02;
			nextVZ = random.nextGaussian() * 0.02;
			ticks = 0;
		}
		double delta = (double) ticks / 30.0;
		
		this.velocityX = MathHelper.lerp(delta, preVX, nextVX);
		this.velocityY = MathHelper.lerp(delta, preVY, nextVY);
		this.velocityZ = MathHelper.lerp(delta, preVZ, nextVZ);
		
		super.tick();
	}

	@Environment(EnvType.CLIENT)
	public static class FactoryGlowingSphere implements ParticleFactory<DefaultParticleType> {

		private final SpriteProvider sprites;

		public FactoryGlowingSphere(SpriteProvider sprites) {
			this.sprites = sprites;
		}

		@Override
		public Particle createParticle(DefaultParticleType type, ClientWorld world, double x, double y, double z, double vX, double vY, double vZ) {
			return new ParticleGlowingSphere(world, x, y, z, sprites, 1, 1, 1);
		}
	}
}