CustomParticleHandler.java 文件源码

@SideOnly (Side.CLIENT)
public static void addLandingEffects(World world, BlockPos pos, IBlockState state, Vector3 entityPos, int numParticles) {
    //Speshal raytrace, from feet to, down.
    Vector3 start = entityPos.copy();
    Vector3 end = start.copy().add(Vector3.down.copy().multiply(4));
    RayTraceResult traceResult = world.rayTraceBlocks(start.vec3(), end.vec3(), true, false, true);

    if (traceResult != null && traceResult.typeOfHit == Type.BLOCK) {
        ParticleManager manager = Minecraft.getMinecraft().effectRenderer;
        Random randy = new Random();
        BlockModelShapes modelProvider = Minecraft.getMinecraft().getBlockRendererDispatcher().getBlockModelShapes();
        try {
            state = state.getActualState(world, pos);
        } catch (Throwable ignored) {
        }
        IBakedModel model = modelProvider.getModelForState(state);
        state = state.getBlock().getExtendedState(state, world, pos);
        if (model instanceof IModelParticleProvider) {
            Set<TextureAtlasSprite> hitSprites = ((IModelParticleProvider) model).getHitEffects(traceResult, state, world, pos);
            List<TextureAtlasSprite> sprites = hitSprites.stream().filter(sprite -> !ignoredParticleSprites.contains(sprite)).collect(Collectors.toList());

            double speed = 0.15000000596046448D;
            if (numParticles != 0) {
                for (int i = 0; i < numParticles; i++) {
                    double mX = randy.nextGaussian() * speed;
                    double mY = randy.nextGaussian() * speed;
                    double mZ = randy.nextGaussian() * speed;
                    manager.addEffect(DigIconParticle.newLandingParticle(world, entityPos.x, entityPos.y, entityPos.z, mX, mY, mZ, sprites.get(randy.nextInt(sprites.size()))));
                }
            }
        }
    }

}