4jcraft/Minecraft.World/Blocks/EggTile.cpp

#include "../Platform/stdafx.h"
#include "EggTile.h"
#include "../Headers/net.minecraft.world.level.h"
#include "../Headers/net.minecraft.world.level.tile.h"
#include "../Headers/net.minecraft.world.entity.item.h"

EggTile::EggTile(int id) : Tile(id, Material::egg, false) {}

void EggTile::onPlace(Level* level, int x, int y, int z) {
    level->addToTickNextTick(x, y, z, id, getTickDelay());
}

void EggTile::neighborChanged(Level* level, int x, int y, int z, int type) {
    level->addToTickNextTick(x, y, z, id, getTickDelay());
}

void EggTile::tick(Level* level, int x, int y, int z, Random* random) {
    checkSlide(level, x, y, z);
}

void EggTile::checkSlide(Level* level, int x, int y, int z) {
    if (HeavyTile::isFree(level, x, y - 1, z) && y >= 0) {
        int r = 32;
        if (HeavyTile::instaFall ||
            !level->hasChunksAt(x - r, y - r, z - r, x + r, y + r, z + r)) {
            level->setTile(x, y, z, 0);
            while (HeavyTile::isFree(level, x, y - 1, z) && y > 0) y--;
            if (y > 0) {
                level->setTile(x, y, z, id);
            }
        } else {
            std::shared_ptr<FallingTile> e = std::shared_ptr<FallingTile>(
                new FallingTile(level, x + 0.5f, y + 0.5f, z + 0.5f, id));
            level->addEntity(e);
        }
    }
}

bool EggTile::use(Level* level, int x, int y, int z,
                  std::shared_ptr<Player> player, int clickedFace, float clickX,
                  float clickY, float clickZ,
                  bool soundOnly /*=false*/)  // 4J added soundOnly param
{
    if (soundOnly) return false;

    teleport(level, x, y, z);
    return true;
}

void EggTile::attack(Level* level, int x, int y, int z,
                     std::shared_ptr<Player> player) {
    teleport(level, x, y, z);
}

void EggTile::teleport(Level* level, int x, int y, int z) {
    if (level->getTile(x, y, z) != id) return;

    for (int i = 0; i < 1000; i++) {
        int xt = x + level->random->nextInt(16) - level->random->nextInt(16);
        int yt = y + level->random->nextInt(8) - level->random->nextInt(8);
        int zt = z + level->random->nextInt(16) - level->random->nextInt(16);
        if (level->getTile(xt, yt, zt) == 0) {
            // Fix for TU9: Content: Art: Dragon egg teleport particle effect
            // isn't present. Don't set tiles on client, and don't create
            // particles on the server (matches later change in Java)
            if (!level->isClientSide) {
                level->setTileAndData(xt, yt, zt, id, level->getData(x, y, z));
                level->setTile(x, y, z, 0);

                // 4J Stu - The PC version is wrong as the particles calculated
                // on the client side will point towards a different location to
                // the one where the egg has actually moved. As the deltas are
                // all small we can pack them into an int See
                // generateTeleportParticles for unpacking
                char deltaX = x - xt;
                char deltaY = y - yt;
                char deltaZ = z - zt;
                int deltas = 0 | (deltaX & 0xFF) | ((deltaY & 0xFF) << 8) |
                             ((deltaZ & 0xFF) << 16);

                level->levelEvent(LevelEvent::END_EGG_TELEPORT, xt, yt, zt,
                                  deltas);
            }

            // 4J Stu - This code will not work correctly on the client as it
            // will show the particles going in the wrong direction and only for
            // the player who attacks the egg
            //	else
            //	{
            //		int count = 128;
            //		for (int j = 0; j < count; j++)
            //		{
            //			double d = level->random->nextDouble(); // j <
            //count / 2 ? 0 :
            //// 1;
            //			float xa = (level->random->nextFloat() - 0.5f) *
            //0.2f; 			float ya = (level->random->nextFloat() - 0.5f) * 0.2f; 			float
            //za = (level->random->nextFloat() - 0.5f) * 0.2f;

            //			double _x = xt + (x - xt) * d +
            //(level->random->nextDouble() - 0.5) * 1 + 0.5f; 			double _y = yt +
            //(y - yt) * d + level->random->nextDouble() * 1 - 0.5f; 			double _z =
            //zt + (z - zt) * d + (level->random->nextDouble() - 0.5) * 1 +
            //0.5f; 			level->addParticle(eParticleType_ender, _x, _y, _z, xa, ya,
            //za);
            //		}
            //	}
            return;
        }
    }
}

int EggTile::getTickDelay() { return 3; }

bool EggTile::blocksLight() { return false; }

bool EggTile::isSolidRender(bool isServerLevel) { return false; }

bool EggTile::isCubeShaped() { return false; }

int EggTile::getRenderShape() { return Tile::SHAPE_EGG; }

int EggTile::cloneTileId(Level* level, int x, int y, int z) { return 0; }

// 4J Added for Fix for #77475 - TU9: Content: Art: Dragon egg teleport particle
// effect isn't present.
void EggTile::generateTeleportParticles(Level* level, int xt, int yt, int zt,
                                        int deltas) {
    int count = 128;

    // See above for packing
    char deltaX = deltas & 0xFF;
    char deltaY = (deltas >> 8) & 0xFF;
    char deltaZ = (deltas >> 16) & 0xFF;

    for (int j = 0; j < count; j++) {
        double d = level->random->nextDouble();  // j < count / 2 ? 0 :
        // 1;
        float xa = (level->random->nextFloat() - 0.5f) * 0.2f;
        float ya = (level->random->nextFloat() - 0.5f) * 0.2f;
        float za = (level->random->nextFloat() - 0.5f) * 0.2f;

        double _x =
            xt + deltaX * d + (level->random->nextDouble() - 0.5) * 1 + 0.5f;
        double _y = yt + deltaY * d + level->random->nextDouble() * 1 - 0.5f;
        double _z =
            zt + deltaZ * d + (level->random->nextDouble() - 0.5) * 1 + 0.5f;
        level->addParticle(eParticleType_ender, _x, _y, _z, xa, ya, za);
    }
}

bool EggTile::shouldRenderFace(LevelSource* level, int x, int y, int z,
                               int face) {
    return true;
}