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

#include "../Platform/stdafx.h"
#include "../Headers/net.minecraft.world.level.h"
#include "../Headers/net.minecraft.world.level.levelgen.feature.h"
#include "../Headers/net.minecraft.world.h"
#include "MushroomPlantTile.h"

Mushroom::Mushroom(int id) : Bush(id) {
    this->updateDefaultShape();
    this->setTicking(true);
}

// 4J Added override
void Mushroom::updateDefaultShape() {
    float ss = 0.2f;
    this->setShape(0.5f - ss, 0, 0.5f - ss, 0.5f + ss, ss * 2, 0.5f + ss);
}

void Mushroom::tick(Level* level, int x, int y, int z, Random* random) {
    if (random->nextInt(25) == 0) {
        int r = 4;
        int max = 5;
        for (int xx = x - r; xx <= x + r; xx++)
            for (int zz = z - r; zz <= z + r; zz++)
                for (int yy = y - 1; yy <= y + 1; yy++) {
                    if (level->getTile(xx, yy, zz) == id && --max <= 0) return;
                }

        int x2 = x + random->nextInt(3) - 1;
        int y2 = y + random->nextInt(2) - random->nextInt(2);
        int z2 = z + random->nextInt(3) - 1;
        for (int i = 0; i < 4; i++) {
            if (level->isEmptyTile(x2, y2, z2) &&
                canSurvive(level, x2, y2, z2)) {
                x = x2;
                y = y2;
                z = z2;
            }
            x2 = x + random->nextInt(3) - 1;
            y2 = y + random->nextInt(2) - random->nextInt(2);
            z2 = z + random->nextInt(3) - 1;
        }

        if (level->isEmptyTile(x2, y2, z2) && canSurvive(level, x2, y2, z2)) {
            level->setTileAndData(x2, y2, z2, id, 0, UPDATE_CLIENTS);
        }
    }
}

bool Mushroom::mayPlace(Level* level, int x, int y, int z) {
    return Bush::mayPlace(level, x, y, z) && canSurvive(level, x, y, z);
}

bool Mushroom::mayPlaceOn(int tile) { return Tile::solid[tile]; }

bool Mushroom::canSurvive(Level* level, int x, int y, int z) {
    if (y < 0 || y >= Level::maxBuildHeight) return false;

    int below = level->getTile(x, y - 1, z);

    return below == Tile::mycel_Id ||
           (level->getDaytimeRawBrightness(x, y, z) < 13 && mayPlaceOn(below));
}

bool Mushroom::growTree(Level* level, int x, int y, int z, Random* random) {
    int data = level->getData(x, y, z);

    level->removeTile(x, y, z);
    Feature* f = NULL;

    if (id == Tile::mushroom_brown_Id) {
        f = new HugeMushroomFeature(0);
    } else if (id == Tile::mushroom_red_Id) {
        f = new HugeMushroomFeature(1);
    }

    if (f == NULL || !f->place(level, random, x, y, z)) {
        level->setTileAndData(x, y, z, id, data, Tile::UPDATE_ALL);
        if (f != NULL) delete f;
        return false;
    }
    if (f != NULL) delete f;
    return true;
}