const itype *turret_data::ammo_data() const
{
if( !veh || !part ) {
return 0;
}
if( part->info().has_flag( "USE_TANKS" ) ) {
return ammo_current() != "null" ? item::find_type( ammo_current() ) : nullptr;
}
return part->base.ammo_data();
}
int turret_data::fire( player &p, const tripoint &target )
{
if( !veh || !part ) {
return 0;
}
int shots = 0;
p.add_effect( effect_on_roof, 1 );
p.recoil = abs( veh->velocity ) / 100 / 4;
auto mode = base()->gun_current_mode();
auto ammo = ammo_current();
long qty = mode->ammo_required();
if( part->info().has_flag( "USE_TANKS" ) ) {
mode->ammo_set( ammo, std::min( qty * mode.qty, long( veh->fuel_left( ammo ) ) ) );
}
shots = p.fire_gun( target, mode.qty, *mode );
if( part->info().has_flag( "USE_TANKS" ) ) {
veh->drain( ammo, qty * shots );
mode->ammo_unset();
}
veh->drain( fuel_type_battery, mode->get_gun_ups_drain() * shots );
p.remove_effect( effect_on_roof );
return shots;
}
long turret_data::ammo_remaining() const
{
if( !veh || !part ) {
return 0;
}
if( part->info().has_flag( "USE_TANKS" ) ) {
return veh->fuel_left( ammo_current() );
}
return part->base.ammo_remaining();
}
long vehicle_part::ammo_capacity() const
{
if( is_tank() ) {
return item::find_type( ammo_current() )->charges_per_volume( base.get_container_capacity() );
}
if( is_fuel_store( false ) || is_turret() ) {
return base.ammo_capacity();
}
return 0;
}
bool vehicle_part::can_reload( const item &obj ) const
{
// first check part is not destroyed and can contain ammo
if( !is_fuel_store() ) {
return false;
}
if( !obj.is_null() ) {
const itype_id obj_type = obj.typeId();
if( is_reactor() ) {
return base.is_reloadable_with( obj_type );
}
// forbid filling tanks with solids or non-material things
if( is_tank() && ( obj.made_of( SOLID ) || obj.made_of( PNULL ) ) ) {
return false;
}
// forbid putting liquids, gasses, and plasma in things that aren't tanks
else if( !obj.made_of( SOLID ) && !is_tank() ) {
return false;
}
// prevent mixing of different ammo
if( ammo_current() != "null" && ammo_current() != obj_type ) {
return false;
}
// For storage with set type, prevent filling with different types
if( info().fuel_type != fuel_type_none && info().fuel_type != obj_type ) {
return false;
}
// don't fill magazines with inappropriate fuel
if( !is_tank() && !base.is_reloadable_with( obj_type ) ) {
return false;
}
}
return ammo_remaining() < ammo_capacity();
}
turret_data::status turret_data::query() const
{
if( !veh || !part ) {
return status::invalid;
}
if( part->info().has_flag( "USE_TANKS" ) ) {
if( veh->fuel_left( ammo_current() ) < part->base.ammo_required() ) {
return status::no_ammo;
}
} else {
if( !part->base.ammo_sufficient() ) {
return status::no_ammo;
}
}
auto ups = part->base.get_gun_ups_drain() * part->base.gun_current_mode().qty;
if( ups > veh->fuel_left( fuel_type_battery ) ) {
return status::no_power;
}
return status::ready;
}
