rubidium@9405: /* $Id$ */
rubidium@9405: 
rubidium@9405: /** @file ai_cargo.hpp Everything to query about cargos */
rubidium@9405: 
rubidium@9405: #ifndef AI_CARGO_HPP
rubidium@9405: #define AI_CARGO_HPP
rubidium@9405: 
rubidium@9405: #include "ai_object.hpp"
rubidium@9405: 
truelight@9447: /**
truelight@9447:  * Class that handles all cargo related functions.
truelight@9447:  */
rubidium@9405: class AICargo : public AIObject {
rubidium@9405: public:
rubidium@9405: 	/**
truelight@9529: 	 * The name of the class, needed by several sub-processes.
truelight@9529: 	 */
truelight@9529: 	static const char *GetClassName() { return "AICargo"; }
truelight@9529: 
truelight@9529: 	/**
rubidium@9472: 	 * Checks whether the given cargo type is valid.
rubidium@9472: 	 * @param cargo_type the cargo to check.
rubidium@9472: 	 * @return true if and only if the cargo type is valid.
rubidium@9472: 	 */
truelight@9490: 	static bool IsValidCargo(CargoID cargo_type);
rubidium@9472: 
rubidium@9472: 	/**
truelight@9447: 	 * Gets the string representation of the cargo label.
truelight@9447: 	 * @param cargo_type to get the string representation of.
truelight@9447: 	 * @return the cargo label.
truelight@9447: 	 * @note the returned cargo label must be free'd (C++ only).
rubidium@9405: 	 */
rubidium@9405: 	char *GetCargoLabel(CargoID cargo_type);
rubidium@9405: 
rubidium@9405: 	/**
truelight@9447: 	 * Checks whether the give cargo is a freight or not.
rubidium@9405: 	 * @param cargo_type is this cargo freight or not?
truelight@9447: 	 * @return true if and only if the cargo is freight.
rubidium@9405: 	 */
rubidium@9405: 	bool IsFreight(CargoID cargo_type);
rubidium@9405: 
rubidium@9405: 	/**
rubidium@9405: 	 * Get the income for transporting a piece of cargo over the
truelight@9447: 	 *   given distance within the specified time.
truelight@9447: 	 * @param distance the distance the cargo travels from begin to end.
truelight@9447: 	 * @param days_in_transit amount of (game) days the cargo is in transit.
truelight@9447: 	 * @param cargo_type the cargo to transport.
truelight@9447: 	 * @return the amount of money that would be earned by this trip.
rubidium@9405: 	 */
rubidium@9405: 	int32 GetCargoIncome(uint32 distance, uint32 days_in_transit, CargoID cargo_type);
rubidium@9405: };
rubidium@9405: 
truelight@9425: #ifdef DEFINE_SQUIRREL_CLASS
rubidium@9524: namespace SQConvert {
rubidium@9524: 	/* Allow AICargo to be used as Squirrel parameter */
rubidium@9594: 	template <> AICargo *GetParam(ForceType<AICargo *>, HSQUIRRELVM vm, int index) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return  (AICargo *)instance; }
rubidium@9594: 	template <> AICargo &GetParam(ForceType<AICargo &>, HSQUIRRELVM vm, int index) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return *(AICargo *)instance; }
rubidium@9594: 	template <> const AICargo *GetParam(ForceType<const AICargo *>, HSQUIRRELVM vm, int index) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return  (AICargo *)instance; }
rubidium@9594: 	template <> const AICargo &GetParam(ForceType<const AICargo &>, HSQUIRRELVM vm, int index) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return *(AICargo *)instance; }
rubidium@9524: }; // namespace SQConvert
rubidium@9524: 
truelight@9422: void SQAICargoRegister(Squirrel *engine) {
rubidium@9405: 	DefSQClass <AICargo> SQAICargo("AICargo");
rubidium@9405: 	SQAICargo.PreRegister(engine);
rubidium@9405: 	SQAICargo.AddConstructor(engine);
rubidium@9526: 
rubidium@9541: 	SQAICargo.DefSQStaticMethod(engine, &AICargo::GetClassName, "GetClassName", 1, "x");
rubidium@9541: 	SQAICargo.DefSQStaticMethod(engine, &AICargo::IsValidCargo, "IsValidCargo", 2, "xi");
rubidium@9532: 
rubidium@9541: 	SQAICargo.DefSQMethod(engine, &AICargo::GetCargoLabel,  "GetCargoLabel",  2, "xi");
rubidium@9541: 	SQAICargo.DefSQMethod(engine, &AICargo::IsFreight,      "IsFreight",      2, "xi");
rubidium@9541: 	SQAICargo.DefSQMethod(engine, &AICargo::GetCargoIncome, "GetCargoIncome", 4, "xiii");
rubidium@9526: 
rubidium@9405: 	SQAICargo.PostRegister(engine);
rubidium@9405: }
rubidium@9520: #endif /* DEFINE_SQUIRREL_CLASS */
rubidium@9405: 
rubidium@9405: #endif /* AI_CARGO_HPP */