rubidium@9405: /* $Id$ */
rubidium@9405: 
truebrain@9833: /** @file ai_cargo.cpp Implementation of AICargo. */
rubidium@9405: 
rubidium@9430: #include "ai_cargo.hpp"
truebrain@10339: #include "../../openttd.h"
rubidium@9430: #include "../../cargotype.h"
rubidium@9723: #include "../../economy_func.h"
rubidium@9723: #include "../../core/alloc_func.hpp"
rubidium@9724: #include "../../core/bitmath_func.hpp"
rubidium@9405: 
rubidium@9497: /* static */ bool AICargo::IsValidCargo(CargoID cargo_type)
rubidium@9472: {
truebrain@9736: 	return (cargo_type < NUM_CARGO && ::GetCargo(cargo_type)->IsValid());
rubidium@9472: }
rubidium@9472: 
truebrain@9737: /* static */ char *AICargo::GetCargoLabel(CargoID cargo_type)
rubidium@9405: {
truebrain@9736: 	if (!IsValidCargo(cargo_type)) return NULL;
truebrain@9736: 	const CargoSpec *cargo = ::GetCargo(cargo_type);
rubidium@9405: 
rubidium@9405: 	/* cargo->label is a uint32 packing a 4 character non-terminated string,
rubidium@9405: 	 * like "PASS", "COAL", "OIL_". New ones can be defined by NewGRFs */
rubidium@9405: 	char *cargo_label = MallocT<char>(sizeof(cargo->label) + 1);
rubidium@9405: 	for (uint i = 0; i < sizeof(cargo->label); i++) {
rubidium@9405: 		cargo_label[i] = GB(cargo->label, (sizeof(cargo->label) - i - 1) * 8, 8);
rubidium@9405: 	}
rubidium@9405: 	cargo_label[sizeof(cargo->label)] = '\0';
rubidium@9405: 	return cargo_label;
rubidium@9405: }
rubidium@9405: 
truebrain@9737: /* static */ bool AICargo::IsFreight(CargoID cargo_type)
rubidium@9405: {
truebrain@9736: 	if (!IsValidCargo(cargo_type)) return false;
truebrain@9736: 	const CargoSpec *cargo = ::GetCargo(cargo_type);
truelight@9458: 	return cargo->is_freight;
rubidium@9405: }
rubidium@9405: 
rubidium@10196: /* static */ Money AICargo::GetCargoIncome(CargoID cargo_type, uint32 distance, uint32 days_in_transit)
rubidium@9405: {
truebrain@10194: 	if (!IsValidCargo(cargo_type)) return -1;
truebrain@9736: 	return ::GetTransportedGoodsIncome(1, distance, days_in_transit, cargo_type);
rubidium@9405: }