std::vector<item> json_item_substitution::get_substitution( const item &it,
const std::vector<trait_id> &traits ) const
{
auto iter = substitutions.find( it.typeId() );
std::vector<item> ret;
if( iter == substitutions.end() ) {
for( const item &con : it.contents ) {
const auto sub = get_substitution( con, traits );
ret.insert( ret.end(), sub.begin(), sub.end() );
}
return ret;
}
const auto sub = std::find_if( iter->second.begin(),
iter->second.end(), [&traits]( const substitution & s ) {
return s.trait_reqs.meets_condition( traits );
} );
if( sub == iter->second.end() ) {
return ret;
}
const long old_amt = it.count();
for( const substitution::info &inf : sub->infos ) {
item result( inf.new_item );
const long new_amt = std::max( 1l, static_cast<long>( std::round( inf.ratio * old_amt ) ) );
if( !result.count_by_charges() ) {
for( long i = 0; i < new_amt; i++ ) {
ret.push_back( result.in_its_container() );
}
} else {
result.mod_charges( -result.charges + new_amt );
while( result.charges > 0 ) {
const item pushed = result.in_its_container();
ret.push_back( pushed );
result.mod_charges( pushed.contents.empty() ? -pushed.charges : -pushed.contents.back().charges );
}
}
}
return ret;
}
// Returns false if pickup caused a prompt and the player selected to cancel pickup
bool pick_one_up( const tripoint &pickup_target, item &newit, vehicle *veh,
int cargo_part, int index, int quantity, bool &got_water,
bool &offered_swap, PickupMap &mapPickup, bool autopickup )
{
player &u = g->u;
int moves_taken = 100;
bool picked_up = false;
pickup_answer option = CANCEL;
item leftovers = newit;
const auto wield_check = u.can_wield( newit );
if( newit.invlet != '\0' &&
u.invlet_to_position( newit.invlet ) != INT_MIN ) {
// Existing invlet is not re-usable, remove it and let the code in player.cpp/inventory.cpp
// add a new invlet, otherwise keep the (usable) invlet.
newit.invlet = '\0';
}
if( quantity != 0 && newit.count_by_charges() ) {
// Reinserting leftovers happens after item removal to avoid stacking issues.
leftovers.charges = newit.charges - quantity;
if( leftovers.charges > 0 ) {
newit.charges = quantity;
}
} else {
leftovers.charges = 0;
}
bool did_prompt = false;
newit.charges = u.i_add_to_container( newit, false );
if( newit.is_ammo() && newit.charges == 0 ) {
picked_up = true;
option = NUM_ANSWERS; //Skip the options part
} else if( newit.made_of_from_type( LIQUID ) ) {
got_water = true;
} else if( !u.can_pickWeight( newit, false ) ) {
if( !autopickup ) {
const std::string &explain = string_format( _( "The %s is too heavy!" ),
newit.display_name() );
option = handle_problematic_pickup( newit, offered_swap, explain );
did_prompt = true;
} else {
option = CANCEL;
}
} else if( newit.is_bucket() && !newit.is_container_empty() ) {
if( !autopickup ) {
const std::string &explain = string_format( _( "Can't stash %s while it's not empty" ),
newit.display_name() );
option = handle_problematic_pickup( newit, offered_swap, explain );
did_prompt = true;
} else {
option = CANCEL;
}
} else if( !u.can_pickVolume( newit ) ) {
if( !autopickup ) {
const std::string &explain = string_format( _( "Not enough capacity to stash %s" ),
newit.display_name() );
option = handle_problematic_pickup( newit, offered_swap, explain );
did_prompt = true;
} else {
option = CANCEL;
}
} else {
option = STASH;
}
switch( option ) {
case NUM_ANSWERS:
// Some other option
break;
case CANCEL:
picked_up = false;
break;
case WEAR:
picked_up = !!u.wear_item( newit );
break;
case WIELD:
if( wield_check.success() ) {
picked_up = u.wield( newit );
if( u.weapon.invlet ) {
add_msg( m_info, _( "Wielding %c - %s" ), u.weapon.invlet,
u.weapon.display_name() );
} else {
add_msg( m_info, _( "Wielding - %s" ), u.weapon.display_name() );
}
} else {
add_msg( m_neutral, wield_check.c_str() );
}
break;
case SPILL:
if( newit.is_container_empty() ) {
debugmsg( "Tried to spill contents from an empty container" );
break;
}
picked_up = newit.spill_contents( u );
if( !picked_up ) {
break;
}
// Intentional fallthrough
case STASH:
auto &entry = mapPickup[newit.tname()];
entry.second += newit.count();
entry.first = u.i_add( newit );
picked_up = true;
break;
}
if( picked_up ) {
remove_from_map_or_vehicle( pickup_target, veh, cargo_part, moves_taken, index );
}
if( leftovers.charges > 0 ) {
bool to_map = veh == nullptr;
if( !to_map ) {
to_map = !veh->add_item( cargo_part, leftovers );
}
if( to_map ) {
g->m.add_item_or_charges( pickup_target, leftovers );
}
}
return picked_up || !did_prompt;
}