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#include "OoTCurveAnimationFactory.h"
#include "spdlog/spdlog.h"
#include "Companion.h"
#include "utils/Decompressor.h"
namespace OoT {
std::optional<std::shared_ptr<IParsedData>> OoTCurveAnimationFactory::parse(std::vector<uint8_t>& buffer, YAML::Node& node) {
// ROM layout: CurveAnimationHeader (16 bytes)
// +0x00: segptr refIndex
// +0x04: segptr transformData
// +0x08: segptr copyValues
// +0x0C: int16 unk_0C
// +0x0E: int16 unk_10
auto [_, segment] = Decompressor::AutoDecode(node, buffer, 0x10);
LUS::BinaryReader reader(segment.data, segment.size);
reader.SetEndianness(Torch::Endianness::Big);
// ZAnimation base class reads frameCount from offset 0 (which for curve anims
// is actually the high 16 bits of refIndex pointer — matches OTRExporter behavior)
auto anim = std::make_shared<OoTCurveAnimationData>();
reader.Seek(0, LUS::SeekOffsetType::Start);
anim->frameCount = reader.ReadInt16();
reader.Seek(0, LUS::SeekOffsetType::Start);
uint32_t refIndexAddr = Companion::Instance->PatchVirtualAddr(reader.ReadUInt32());
uint32_t transformDataAddr = Companion::Instance->PatchVirtualAddr(reader.ReadUInt32());
uint32_t copyValuesAddr = Companion::Instance->PatchVirtualAddr(reader.ReadUInt32());
// Get limb count from the skeleton referenced by skel_offset
// skel_offset is segment-relative, so construct full segmented address
// using the same segment as this animation
uint32_t animOffset = GetSafeNode<uint32_t>(node, "offset");
uint8_t segNum = SEGMENT_NUMBER(animOffset);
uint32_t skelOffset = (segNum << 24) | GetSafeNode<uint32_t>(node, "skel_offset");
YAML::Node skelNode;
skelNode["offset"] = skelOffset;
auto skelRaw = Decompressor::AutoDecode(skelNode, buffer, 0x08);
LUS::BinaryReader skelReader(skelRaw.segment.data, skelRaw.segment.size);
skelReader.SetEndianness(Torch::Endianness::Big);
skelReader.ReadUInt32(); // skip limbs array ptr
uint8_t limbCount = skelReader.ReadUByte();
// Read refIndex array: 3 * 3 * limbCount entries of uint8
size_t transformDataSize = 0;
size_t copyValuesSize = 0;
if (refIndexAddr != 0) {
uint32_t refCount = 3 * 3 * limbCount;
YAML::Node riNode;
riNode["offset"] = refIndexAddr;
auto riRaw = Decompressor::AutoDecode(riNode, buffer, refCount);
LUS::BinaryReader riReader(riRaw.segment.data, riRaw.segment.size);
for (uint32_t i = 0; i < refCount; i++) {
uint8_t ref = riReader.ReadUByte();
if (ref == 0) {
copyValuesSize++;
} else {
transformDataSize += ref;
}
anim->refIndexArr.push_back(ref);
}
}
// Read transform data array
if (transformDataAddr != 0 && transformDataSize > 0) {
YAML::Node tdNode;
tdNode["offset"] = transformDataAddr;
auto tdRaw = Decompressor::AutoDecode(tdNode, buffer, transformDataSize * 0x0C);
LUS::BinaryReader tdReader(tdRaw.segment.data, tdRaw.segment.size);
tdReader.SetEndianness(Torch::Endianness::Big);
for (size_t i = 0; i < transformDataSize; i++) {
CurveInterpKnot knot;
knot.unk_00 = tdReader.ReadUInt16();
knot.unk_02 = tdReader.ReadInt16();
knot.unk_04 = tdReader.ReadInt16();
knot.unk_06 = tdReader.ReadInt16();
knot.unk_08 = tdReader.ReadFloat();
anim->transformDataArr.push_back(knot);
}
}
// Read copy values array
if (copyValuesAddr != 0 && copyValuesSize > 0) {
YAML::Node cvNode;
cvNode["offset"] = copyValuesAddr;
auto cvRaw = Decompressor::AutoDecode(cvNode, buffer, copyValuesSize * 2);
LUS::BinaryReader cvReader(cvRaw.segment.data, cvRaw.segment.size);
cvReader.SetEndianness(Torch::Endianness::Big);
for (size_t i = 0; i < copyValuesSize; i++) {
anim->copyValuesArr.push_back(cvReader.ReadInt16());
}
}
return anim;
}
ExportResult OoTCurveAnimationBinaryExporter::Export(std::ostream& write, std::shared_ptr<IParsedData> raw,
std::string& entryName, YAML::Node& node,
std::string* replacement) {
auto writer = LUS::BinaryWriter();
auto anim = std::static_pointer_cast<OoTCurveAnimationData>(raw);
WriteHeader(writer, Torch::ResourceType::OoTAnimation, 0);
writer.Write(static_cast<uint32_t>(OoTAnimationType::Curve));
writer.Write(anim->frameCount);
writer.Write(static_cast<uint32_t>(anim->refIndexArr.size()));
for (auto& val : anim->refIndexArr) {
writer.Write(val);
}
writer.Write(static_cast<uint32_t>(anim->transformDataArr.size()));
for (auto& knot : anim->transformDataArr) {
writer.Write(knot.unk_00);
writer.Write(knot.unk_02);
writer.Write(knot.unk_04);
writer.Write(knot.unk_06);
writer.Write(knot.unk_08);
}
writer.Write(static_cast<uint32_t>(anim->copyValuesArr.size()));
for (auto& val : anim->copyValuesArr) {
writer.Write(val);
}
writer.Finish(write);
return std::nullopt;
}
} // namespace OoT
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