74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
#include "script.h"
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#include <asar/interface-lib.h>
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#include <array>
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#include <cstdint>
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#include <fstream>
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#include <sstream>
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#include <string>
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "absl/strings/str_cat.h"
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#include "absl/strings/string_view.h"
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#include "app/core/common.h"
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#include "app/core/constants.h"
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#include "app/rom.h"
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namespace yaze {
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namespace app {
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namespace snes_asm {
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absl::Status Script::ApplyPatchToROM(ROM &rom) {
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if (patch_contents_.empty() || patch_filename_.empty()) {
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return absl::InvalidArgumentError("No patch loaded!");
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}
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int count = 0;
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auto data = (char *)rom.data();
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int size = rom.size();
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if (!asar_patch(patch_filename_.c_str(), data, patch_size_, &size)) {
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auto asar_error = asar_geterrors(&count);
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auto full_error = asar_error->fullerrdata;
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return absl::InternalError(absl::StrCat("ASAR Error: ", full_error));
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}
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return absl::OkStatus();
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}
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absl::Status Script::PatchOverworldMosaic(
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ROM &rom, char mosaic_tiles[core::kNumOverworldMaps], int routine_offset,
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int hook_offset) {
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for (int i = 0; i < core::kNumOverworldMaps; i++) {
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if (mosaic_tiles[i]) {
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rom[core::overworldCustomMosaicArray + i] = 0x01;
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} else {
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rom[core::overworldCustomMosaicArray + i] = 0x00;
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}
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}
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std::fstream file("assets/asm/mosaic_change.asm",
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std::ios::out | std::ios::in);
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if (!file.is_open()) {
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return absl::InvalidArgumentError(
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"Unable to open mosaic change assembly source");
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}
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std::stringstream assembly;
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assembly << file.rdbuf();
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file.close();
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auto assembly_string = assembly.str();
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if (!core::StringReplace(assembly_string, "<HOOK>", kMosaicChangeOffset)) {
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return absl::InternalError(
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"Mosaic template did not have proper `<HOOK>` to replace.");
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}
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if (!core::StringReplace(
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assembly_string, "<EXPANDED_SPACE>",
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absl::StrFormat("$%x", routine_offset + kSNESToPCOffset))) {
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return absl::InternalError(
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"Mosaic template did not have proper `<EXPANDED_SPACE>` to replace.");
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}
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patch_contents_ = assembly_string;
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return ApplyPatchToROM(rom);
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}
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} // namespace snes_asm
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} // namespace app
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} // namespace yaze
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