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C++ Vehicle::GetGRF方法代码示例

本文整理汇总了C++中Vehicle::GetGRF方法的典型用法代码示例。如果您正苦于以下问题:C++ Vehicle::GetGRF方法的具体用法?C++ Vehicle::GetGRF怎么用?C++ Vehicle::GetGRF使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Vehicle的用法示例。


在下文中一共展示了Vehicle::GetGRF方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: CmdStartStopVehicle

/**
 * Start/Stop a vehicle
 * @param tile unused
 * @param flags type of operation
 * @param p1 vehicle to start/stop, don't forget to change CcStartStopVehicle if you modify this!
 * @param p2 bit 0: Shall the start/stop newgrf callback be evaluated (only valid with DC_AUTOREPLACE for network safety)
 * @param text unused
 * @return the cost of this operation or an error
 */
CommandCost CmdStartStopVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
	/* Disable the effect of p2 bit 0, when DC_AUTOREPLACE is not set */
	if ((flags & DC_AUTOREPLACE) == 0) SetBit(p2, 0);

	Vehicle *v = Vehicle::GetIfValid(p1);
	if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;

	CommandCost ret = CheckOwnership(v->owner);
	if (ret.Failed()) return ret;

	if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_VEHICLE_IS_DESTROYED);

	switch (v->type) {
		case VEH_TRAIN:
			if ((v->vehstatus & VS_STOPPED) && Train::From(v)->gcache.cached_power == 0) return_cmd_error(STR_ERROR_TRAIN_START_NO_POWER);
			break;

		case VEH_SHIP:
		case VEH_ROAD:
			break;

		case VEH_AIRCRAFT: {
			Aircraft *a = Aircraft::From(v);
			/* cannot stop airplane when in flight, or when taking off / landing */
			if (!(v->vehstatus & VS_CRASHED) && a->state >= STARTTAKEOFF && a->state < TERM7) return_cmd_error(STR_ERROR_AIRCRAFT_IS_IN_FLIGHT);
			break;
		}

		default: return CMD_ERROR;
	}

	if (HasBit(p2, 0)) {
		/* Check if this vehicle can be started/stopped. Failure means 'allow'. */
		uint16 callback = GetVehicleCallback(CBID_VEHICLE_START_STOP_CHECK, 0, 0, v->engine_type, v);
		StringID error = STR_NULL;
		if (callback != CALLBACK_FAILED) {
			if (v->GetGRF()->grf_version < 8) {
				/* 8 bit result 0xFF means 'allow' */
				if (callback < 0x400 && GB(callback, 0, 8) != 0xFF) error = GetGRFStringID(v->GetGRFID(), 0xD000 + callback);
			} else {
				if (callback < 0x400) {
					error = GetGRFStringID(v->GetGRFID(), 0xD000 + callback);
				} else {
					switch (callback) {
						case 0x400: // allow
							break;

						default: // unknown reason -> disallow
							error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
							break;
					}
				}
			}
		}
		if (error != STR_NULL) return_cmd_error(error);
	}

	if (flags & DC_EXEC) {
		if (v->IsStoppedInDepot() && (flags & DC_AUTOREPLACE) == 0) DeleteVehicleNews(p1, STR_NEWS_TRAIN_IS_WAITING + v->type);

		v->vehstatus ^= VS_STOPPED;
		if (v->type != VEH_TRAIN) v->cur_speed = 0; // trains can stop 'slowly'
		v->MarkDirty();
		SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
		SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
		SetWindowClassesDirty(GetWindowClassForVehicleType(v->type));
	}
	return CommandCost();
}
开发者ID:fonsinchen,项目名称:openttd-cargodist,代码行数:79,代码来源:vehicle_cmd.cpp


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