Function SlSaveLoadConv

src/saveload/saveload.cpp:862–908

* Handle all conversion and typechecking of variables here. * In the case of saving, read in the actual value from the struct * and then write them to file, endian safely. Loading a value * goes exactly the opposite way * @param ptr The object being filled/read * @param conv VarType type of the current element of the struct */

 * @param conv VarType type of the current element of the struct
 */
static void SlSaveLoadConv(void *ptr, VarType conv)
{
	switch (_sl.action) {
		case SLA_SAVE: {
			int64_t x = ReadValue(ptr, conv);

			/* Write the value to the file and check if its value is in the desired range */
			switch (GetVarFileType(conv)) {
				case SLE_FILE_I8: assert(x >= -128 && x <= 127);     SlWriteByte(x);break;
				case SLE_FILE_U8: assert(x >= 0 && x <= 255);        SlWriteByte(x);break;
				case SLE_FILE_I16:assert(x >= -32768 && x <= 32767); SlWriteUint16(x);break;
				case SLE_FILE_STRINGID:
				case SLE_FILE_U16:assert(x >= 0 && x <= 65535);      SlWriteUint16(x);break;
				case SLE_FILE_I32:
				case SLE_FILE_U32:                                   SlWriteUint32((uint32_t)x);break;
				case SLE_FILE_I64:
				case SLE_FILE_U64:                                   SlWriteUint64(x);break;
				default: NOT_REACHED();
			}
			break;
		}
		case SLA_LOAD_CHECK:
		case SLA_LOAD: {
			int64_t x;
			/* Read a value from the file */
			switch (GetVarFileType(conv)) {
				case SLE_FILE_I8:  x = (int8_t  )SlReadByte();   break;
				case SLE_FILE_U8:  x = (uint8_t  )SlReadByte();   break;
				case SLE_FILE_I16: x = (int16_t )SlReadUint16(); break;
				case SLE_FILE_U16: x = (uint16_t)SlReadUint16(); break;
				case SLE_FILE_I32: x = (int32_t )SlReadUint32(); break;
				case SLE_FILE_U32: x = (uint32_t)SlReadUint32(); break;
				case SLE_FILE_I64: x = (int64_t )SlReadUint64(); break;
				case SLE_FILE_U64: x = (uint64_t)SlReadUint64(); break;
				case SLE_FILE_STRINGID: x = RemapOldStringID((uint16_t)SlReadUint16()); break;
				default: NOT_REACHED();
			}

			/* Write The value to the struct. These ARE endian safe. */
			WriteValue(ptr, conv, x);
			break;
		}
		case SLA_PTRS: break;
		case SLA_NULL: break;
		default: NOT_REACHED();
	}
}

/**
 * Calculate the gross length of the string that it