My entity class extends AbstractMinecart and code in it is almost equal to FurnaceMinecart class.
public class Minecart_new extends AbstractMinecart {
private static final EntityDataAccessor<Boolean> DATA_ID_FUEL = SynchedEntityData.defineId(MinecartFurnace.class, EntityDataSerializers.BOOLEAN);
private int fuel;
public double xPush;
public double zPush;
private static final Ingredient INGREDIENT = Ingredient.of(Items.APPLE, Items.CHARCOAL);
public Minecart_new(EntityType<? extends Minecart_new> p_38552_, Level p_38553_) {
super(p_38552_, p_38553_);
}
public AbstractMinecart.Type getMinecartType() {
return AbstractMinecart.Type.FURNACE;
}
@Override
protected void defineSynchedData() {
super.defineSynchedData();
this.entityData.define(DATA_ID_FUEL, false);
}
@Override
public void tick() {
super.tick();
if (!this.level.isClientSide()) {
if (this.fuel > 0) {
--this.fuel;
}
if (this.fuel <= 0) {
xPush = 0.0D;
zPush = 0.0D;
}
this.setHasFuel(this.fuel > 0);
}
if (this.hasFuel() && this.random.nextInt(4) == 0) {
this.level.addParticle(ParticleTypes.LARGE_SMOKE, this.getX(), this.getY() + 0.8D, this.getZ(), 0.0D, 0.0D, 0.0D);
}
}
@Override
protected double getMaxSpeed() {
return (this.isInWater() ? 3.0D : 4.0D) / 20.0D;
}
@Override
public float getMaxCartSpeedOnRail() {
return 0.2f;
}
@Override
public void destroy(DamageSource p_38560_) {
super.destroy(p_38560_);
if (!p_38560_.isExplosion() && this.level.getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
this.spawnAtLocation(Blocks.FURNACE);
}
}
@Override
protected void moveAlongTrack(BlockPos p_38569_, BlockState p_38570_) {
super.moveAlongTrack(p_38569_, p_38570_);
Vec3 vec3 = this.getDeltaMovement();
double d2 = vec3.horizontalDistanceSqr();
double d3 = this.xPush * this.xPush + this.zPush * this.zPush;
if (d3 > 1.0E-4D && d2 > 0.001D) {
double d4 = Math.sqrt(d2);
double d5 = Math.sqrt(d3);
this.xPush = vec3.x / d4 * d5;
this.zPush = vec3.z / d4 * d5;
}
}
@Override
protected void applyNaturalSlowdown() {
double d0 = this.xPush * this.xPush + this.zPush * this.zPush;
if (d0 > 1.0E-7D) {
d0 = Math.sqrt(d0);
this.xPush /= d0;
this.zPush /= d0;
Vec3 vec3 = this.getDeltaMovement().multiply(0.8D, 0.0D, 0.8D).add(this.xPush, 0.0D, this.zPush);
if (this.isInWater()) {
vec3 = vec3.scale(0.1D);
}
this.setDeltaMovement(vec3);
} else {
this.setDeltaMovement(this.getDeltaMovement().multiply(0.98D, 0.0D, 0.98D));
}
super.applyNaturalSlowdown();
}
@Override
public InteractionResult interact(Player p_38562_, InteractionHand p_38563_) {
InteractionResult ret = super.interact(p_38562_, p_38563_);
if (ret.consumesAction()) return ret;
ItemStack itemstack = p_38562_.getItemInHand(p_38563_);
if (INGREDIENT.test(itemstack) && this.fuel+ 3600 <= 32000) {
if (!p_38562_.getAbilities().instabuild) {
itemstack.shrink(1);
}
this.fuel += 3600;
}
if (this.fuel > 0) {
this.xPush = -(this.getX() - p_38562_.getX());
this.zPush = -(this.getZ() - p_38562_.getZ());
}
return InteractionResult.sidedSuccess(this.level.isClientSide);
}
@Override
protected void addAdditionalSaveData(CompoundTag p_38567_) {
super.addAdditionalSaveData(p_38567_);
p_38567_.putDouble("PushX", this.xPush);
p_38567_.putDouble("PushZ", this.zPush);
p_38567_.putShort("Fuel", (short)this.fuel);
}
@Override
protected void readAdditionalSaveData(CompoundTag p_38565_) {
super.readAdditionalSaveData(p_38565_);
this.xPush = p_38565_.getDouble("PushX");
this.zPush = p_38565_.getDouble("PushZ");
this.fuel = p_38565_.getShort("Fuel");
}
protected boolean hasFuel() {
return this.entityData.get(DATA_ID_FUEL);
}
protected void setHasFuel(boolean p_38577_) {
this.entityData.set(DATA_ID_FUEL, p_38577_);
}
@Override
public BlockState getDefaultDisplayBlockState() {
return Blocks.FURNACE.defaultBlockState().setValue(FurnaceBlock.FACING, Direction.NORTH).setValue(FurnaceBlock.LIT, Boolean.valueOf(this.hasFuel()));
}
/////////
@Override
public ItemStack getPickResult() {
Item item = ItemInit.MINECARTNEW_ITEM.get();
return new ItemStack(item);
}
}
Registration of entity.
public class EntityInit {
private EntityInit() {}
public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES, minecart.MOD_ID);
public static final RegistryObject<EntityType<Minecart_new>> MINECART_ENTITY = ENTITIES.register("minecart_new", () ->
EntityType.Builder.of(Minecart_new::new, MobCategory.MISC).sized(0.98F, 0.7F)
.build(new ResourceLocation(minecart.MOD_ID,"minecart_new").toString()));
}
