Method dealFireDamage

src/main/java/net/minecraft/entity/Entity.java:1089–1095

Will deal the specified amount of damage to the entity if the entity isn't immune to fire damage. Args: amountDamage

(int amount)

     * amountDamage
     */
    protected void dealFireDamage(int amount)
    {
        if (!this.isImmuneToFire)
        {
            this.attackEntityFrom(DamageSource.inFire, (float)amount);
        }
    }

    public final boolean isImmuneToFire()
    {