4jcraft/Minecraft.World/Entities/MinecartTNT.cpp
2026-03-21 16:29:02 -05:00

136 lines
3.8 KiB
C++

#include "../Platform/stdafx.h"
#include "../Headers/net.minecraft.world.damagesource.h"
#include "../Headers/net.minecraft.world.level.h"
#include "../Headers/net.minecraft.world.level.tile.h"
#include "MinecartTNT.h"
void MinecartTNT::_init() {
// 4J Stu - This function call had to be moved here from the Entity ctor to
// ensure that the derived version of the function is called
this->defineSynchedData();
fuse = -1;
}
MinecartTNT::MinecartTNT(Level* level) : Minecart(level) { _init(); }
MinecartTNT::MinecartTNT(Level* level, double x, double y, double z)
: Minecart(level, x, y, z) {
_init();
}
int MinecartTNT::getType() { return TYPE_TNT; }
Tile* MinecartTNT::getDefaultDisplayTile() { return Tile::tnt; }
void MinecartTNT::tick() {
Minecart::tick();
if (fuse > 0) {
fuse--;
level->addParticle(eParticleType_smoke, x, y + 0.5f, z, 0, 0, 0);
} else if (fuse == 0) {
explode(xd * xd + zd * zd);
}
if (horizontalCollision) {
double speedSqr = xd * xd + zd * zd;
if (speedSqr >= 0.01f) {
explode(speedSqr);
}
}
}
void MinecartTNT::destroy(DamageSource* source) {
Minecart::destroy(source);
double speedSqr = xd * xd + zd * zd;
if (!source->isExplosion()) {
spawnAtLocation(
std::shared_ptr<ItemInstance>(new ItemInstance(Tile::tnt, 1)), 0);
}
if (source->isFire() || source->isExplosion() || speedSqr >= 0.01f) {
explode(speedSqr);
}
}
void MinecartTNT::explode(double speedSqr) {
if (!level->isClientSide) {
double speed = sqrt(speedSqr);
if (speed > 5) speed = 5;
level->explode(shared_from_this(), x, y, z,
(float)(4 + random->nextDouble() * 1.5f * speed), true);
remove();
}
}
void MinecartTNT::causeFallDamage(float distance) {
if (distance >= 3) {
float power = distance / 10;
explode(power * power);
}
Minecart::causeFallDamage(distance);
}
void MinecartTNT::activateMinecart(int xt, int yt, int zt, bool state) {
if (state && fuse < 0) {
primeFuse();
}
}
void MinecartTNT::handleEntityEvent(uint8_t eventId) {
if (eventId == EVENT_PRIME) {
primeFuse();
} else {
Minecart::handleEntityEvent(eventId);
}
}
void MinecartTNT::primeFuse() {
fuse = 80;
if (!level->isClientSide) {
level->broadcastEntityEvent(shared_from_this(), EVENT_PRIME);
level->playEntitySound(shared_from_this(), eSoundType_RANDOM_FUSE, 1,
1.0f);
}
}
int MinecartTNT::getFuse() { return fuse; }
bool MinecartTNT::isPrimed() { return fuse > -1; }
float MinecartTNT::getTileExplosionResistance(Explosion* explosion,
Level* level, int x, int y, int z,
Tile* tile) {
if (isPrimed() && (BaseRailTile::isRail(tile->id) ||
BaseRailTile::isRail(level, x, y + 1, z))) {
return 0;
}
return Minecart::getTileExplosionResistance(explosion, level, x, y, z,
tile);
}
bool MinecartTNT::shouldTileExplode(Explosion* explosion, Level* level, int x,
int y, int z, int id, float power) {
if (isPrimed() &&
(BaseRailTile::isRail(id) || BaseRailTile::isRail(level, x, y + 1, z)))
return false;
return Minecart::shouldTileExplode(explosion, level, x, y, z, id, power);
}
void MinecartTNT::readAdditionalSaveData(CompoundTag* tag) {
Minecart::readAdditionalSaveData(tag);
if (tag->contains(L"TNTFuse")) fuse = tag->getInt(L"TNTFuse");
}
void MinecartTNT::addAdditonalSaveData(CompoundTag* tag) {
Minecart::addAdditonalSaveData(tag);
tag->putInt(L"TNTFuse", fuse);
}