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Add ROM::ReadTransaction for bulk reads and cleanup Overworld class

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scawful
2024-01-25 14:04:31 -05:00
parent 1ef1c3ff84
commit f45e115176
4 changed files with 226 additions and 154 deletions
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29
src/app/rom.h
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@@ -162,6 +162,35 @@ class ROM : public core::ExperimentFlags {
return absl::InvalidArgumentError("Invalid write argument type");
}
template <typename T, typename... Args>
absl::Status ReadTransaction(T& var, int address, Args&&... args) {
absl::Status status = ReadHelper<T>(var, address);
if (!status.ok()) {
return status;
}
if constexpr (sizeof...(args) > 0) {
status = ReadTransaction(std::forward<Args>(args)...);
}
return status;
}
template <typename T>
absl::Status ReadHelper(T& var, int address) {
if constexpr (std::is_same_v<T, uint8_t>) {
ASSIGN_OR_RETURN(auto result, ReadByte(address));
var = result;
} else if constexpr (std::is_same_v<T, uint16_t>) {
ASSIGN_OR_RETURN(auto result, ReadWord(address));
var = result;
} else if constexpr (std::is_same_v<T, std::vector<uint8_t>>) {
ASSIGN_OR_RETURN(auto result, ReadByteVector(address, var.size()));
var = result;
}
return absl::OkStatus();
}
/**
* Loads 2bpp graphics from ROM data.
*