Shuffle stuff around

- Use the new and improved hierarchy I figured out when making Prospero chat
- Re-add NSIS scripts, again from Prospero
- Update most build and utility scripts with their most recent versions

1 files changed, 345 insertions, 0 deletions

diff --git a/src/core/io/buffer.cc b/src/core/io/buffer.cc
new file mode 100644
index 0000000..0f781a0
--- /dev/null
+++ b/src/core/io/buffer.cc
@@ -0,0 +1,345 @@
+#include "core/pch.hh"
+
+#include "core/io/buffer.hh"
+
+#include "core/math/constexpr.hh"
+
+io::ReadBuffer::ReadBuffer(const ReadBuffer& other)
+{
+    reset(other.data(), other.size());
+}
+
+io::ReadBuffer::ReadBuffer(const void* data, std::size_t size)
+{
+    assert(data);
+
+    reset(data, size);
+}
+
+io::ReadBuffer::ReadBuffer(const ENetPacket* packet)
+{
+    assert(packet);
+
+    reset(packet);
+}
+
+io::ReadBuffer::ReadBuffer(PHYSFS_File* file)
+{
+    assert(file);
+
+    reset(file);
+}
+
+std::size_t io::ReadBuffer::size(void) const
+{
+    return m_vector.size();
+}
+
+const std::byte* io::ReadBuffer::data(void) const
+{
+    return m_vector.data();
+}
+
+void io::ReadBuffer::reset(const void* data, std::size_t size)
+{
+    assert(data);
+
+    auto bytes = reinterpret_cast<const std::byte*>(data);
+    m_vector.assign(bytes, bytes + size);
+    m_position = 0U;
+}
+
+void io::ReadBuffer::reset(const ENetPacket* packet)
+{
+    assert(packet);
+
+    auto bytes_ptr = reinterpret_cast<const std::byte*>(packet->data);
+    m_vector.assign(bytes_ptr, bytes_ptr + packet->dataLength);
+    m_position = 0;
+}
+
+void io::ReadBuffer::reset(PHYSFS_File* file)
+{
+    assert(file);
+
+    m_vector.resize(PHYSFS_fileLength(file));
+    m_position = 0;
+
+    PHYSFS_seek(file, 0);
+    PHYSFS_readBytes(file, m_vector.data(), m_vector.size());
+}
+
+template<>
+std::byte io::ReadBuffer::read<std::byte>(void)
+{
+    if(m_position < m_vector.size()) {
+        auto result = m_vector[m_position];
+        m_position += 1U;
+        return result;
+    }
+
+    m_position += 1U;
+    return static_cast<std::byte>(0x00);
+}
+
+template<>
+std::uint8_t io::ReadBuffer::read<std::uint8_t>(void)
+{
+    if((m_position + 1U) <= m_vector.size()) {
+        auto result = static_cast<std::uint8_t>(m_vector[m_position]);
+        m_position += 1U;
+        return result;
+    }
+
+    m_position += 1U;
+    return 0;
+}
+
+template<>
+std::uint16_t io::ReadBuffer::read<std::uint16_t>(void)
+{
+    if((m_position + 2U) <= m_vector.size()) {
+        auto result = UINT16_C(0x0000);
+        result |= (UINT16_C(0x00FF) & static_cast<std::uint16_t>(m_vector[m_position + 0U])) << 8U;
+        result |= (UINT16_C(0x00FF) & static_cast<std::uint16_t>(m_vector[m_position + 1U])) << 0U;
+        m_position += 2U;
+        return result;
+    }
+
+    m_position += 2U;
+    return 0;
+}
+
+template<>
+std::uint32_t io::ReadBuffer::read<std::uint32_t>(void)
+{
+    if((m_position + 4U) <= m_vector.size()) {
+        auto result = UINT32_C(0x00000000);
+        result |= (UINT32_C(0x000000FF) & static_cast<std::uint32_t>(m_vector[m_position + 0U])) << 24U;
+        result |= (UINT32_C(0x000000FF) & static_cast<std::uint32_t>(m_vector[m_position + 1U])) << 16U;
+        result |= (UINT32_C(0x000000FF) & static_cast<std::uint32_t>(m_vector[m_position + 2U])) << 8U;
+        result |= (UINT32_C(0x000000FF) & static_cast<std::uint32_t>(m_vector[m_position + 3U])) << 0U;
+        m_position += 4U;
+        return result;
+    }
+
+    m_position += 4U;
+    return 0;
+}
+
+template<>
+std::uint64_t io::ReadBuffer::read<std::uint64_t>(void)
+{
+    if((m_position + 8U) <= m_vector.size()) {
+        auto result = UINT64_C(0x0000000000000000);
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 0U])) << 56U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 1U])) << 48U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 2U])) << 40U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 3U])) << 32U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 4U])) << 24U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 5U])) << 16U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 6U])) << 8U;
+        result |= (UINT64_C(0x00000000000000FF) & static_cast<std::uint64_t>(m_vector[m_position + 7U])) << 0U;
+        m_position += 8U;
+        return result;
+    }
+
+    m_position += 8U;
+    return 0;
+}
+
+template<>
+float io::ReadBuffer::read<float>(void)
+{
+    return std::bit_cast<float>(read<std::uint32_t>());
+}
+
+template<>
+std::int8_t io::ReadBuffer::read<std::int8_t>(void)
+{
+    return std::bit_cast<std::int8_t>(read<std::uint8_t>());
+}
+
+template<>
+std::int16_t io::ReadBuffer::read<std::int16_t>(void)
+{
+    return std::bit_cast<std::int16_t>(read<std::uint16_t>());
+}
+
+template<>
+std::int32_t io::ReadBuffer::read<std::int32_t>(void)
+{
+    return std::bit_cast<std::int32_t>(read<std::uint32_t>());
+}
+
+template<>
+std::int64_t io::ReadBuffer::read<std::int64_t>(void)
+{
+    return std::bit_cast<std::int64_t>(read<std::uint64_t>());
+}
+
+template<>
+std::string io::ReadBuffer::read<std::string>(void)
+{
+    std::string result;
+    result.resize(read<std::uint16_t>());
+
+    for(std::size_t i = 0; i < result.size(); ++i) {
+        if(m_position < m_vector.size()) {
+            result[i] = static_cast<char>(m_vector[m_position]);
+        }
+
+        m_position += 1U;
+    }
+
+    return result;
+}
+
+void io::ReadBuffer::read(void* buffer, std::size_t size)
+{
+    auto bytes = reinterpret_cast<std::byte*>(buffer);
+    auto amount_to_read = std::min(size, m_vector.size() - m_position);
+
+    if(amount_to_read > 0) {
+        std::copy(m_vector.cbegin() + m_position, m_vector.cbegin() + m_position + amount_to_read, bytes);
+    }
+
+    m_position += size;
+}
+
+io::WriteBuffer::WriteBuffer(const WriteBuffer& other)
+{
+    m_vector = other.m_vector;
+}
+
+std::size_t io::WriteBuffer::size(void) const
+{
+    return m_vector.size();
+}
+
+const std::byte* io::WriteBuffer::data(void) const
+{
+    return m_vector.data();
+}
+
+void io::WriteBuffer::reset(void)
+{
+    m_vector.clear();
+}
+
+void io::WriteBuffer::write(const WriteBuffer& other)
+{
+    m_vector.insert(m_vector.end(), other.m_vector.begin(), other.m_vector.end());
+}
+
+void io::WriteBuffer::write(const void* data, std::size_t size)
+{
+    assert(data);
+
+    auto bytes = reinterpret_cast<const std::byte*>(data);
+    m_vector.insert(m_vector.end(), bytes, bytes + size);
+}
+
+template<>
+void io::WriteBuffer::write<std::byte>(const std::byte value)
+{
+    m_vector.push_back(value);
+}
+
+template<>
+void io::WriteBuffer::write<std::uint8_t>(const std::uint8_t value)
+{
+    m_vector.push_back(static_cast<std::byte>(value));
+}
+
+template<>
+void io::WriteBuffer::write<std::uint16_t>(const std::uint16_t value)
+{
+    m_vector.push_back(static_cast<std::byte>(UINT16_C(0xFF) & ((value & UINT16_C(0xFF00)) >> 8U)));
+    m_vector.push_back(static_cast<std::byte>(UINT16_C(0xFF) & ((value & UINT16_C(0x00FF)) >> 0U)));
+}
+
+template<>
+void io::WriteBuffer::write<std::uint32_t>(const std::uint32_t value)
+{
+    m_vector.push_back(static_cast<std::byte>(UINT32_C(0xFF) & ((value & UINT32_C(0xFF000000)) >> 24U)));
+    m_vector.push_back(static_cast<std::byte>(UINT32_C(0xFF) & ((value & UINT32_C(0x00FF0000)) >> 16U)));
+    m_vector.push_back(static_cast<std::byte>(UINT32_C(0xFF) & ((value & UINT32_C(0x0000FF00)) >> 8U)));
+    m_vector.push_back(static_cast<std::byte>(UINT32_C(0xFF) & ((value & UINT32_C(0x000000FF)) >> 0U)));
+}
+
+template<>
+void io::WriteBuffer::write<std::uint64_t>(const std::uint64_t value)
+{
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0xFF00000000000000)) >> 56U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x00FF000000000000)) >> 48U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x0000FF0000000000)) >> 40U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x000000FF00000000)) >> 32U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x00000000FF000000)) >> 24U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x0000000000FF0000)) >> 16U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x000000000000FF00)) >> 8U)));
+    m_vector.push_back(static_cast<std::byte>(UINT64_C(0xFF) & ((value & UINT64_C(0x00000000000000FF)) >> 0U)));
+}
+
+template<>
+void io::WriteBuffer::write(const float value)
+{
+    write(std::bit_cast<std::uint32_t>(value));
+}
+
+template<>
+void io::WriteBuffer::write(const std::int8_t value)
+{
+    write(std::bit_cast<std::uint8_t>(value));
+}
+
+template<>
+void io::WriteBuffer::write(const std::int16_t value)
+{
+    write(std::bit_cast<std::uint16_t>(value));
+}
+
+template<>
+void io::WriteBuffer::write(const std::int32_t value)
+{
+    write(std::bit_cast<std::uint32_t>(value));
+}
+
+template<>
+void io::WriteBuffer::write(const std::int64_t value)
+{
+    write(std::bit_cast<std::uint64_t>(value));
+}
+
+template<>
+void io::WriteBuffer::write<std::string_view>(const std::string_view value)
+{
+    write<std::uint16_t>(static_cast<std::uint16_t>(value.size()));
+
+    for(const auto& character : value) {
+        m_vector.push_back(static_cast<std::byte>(character));
+    }
+}
+
+PHYSFS_File* io::WriteBuffer::to_file(const std::string& path, bool append) const
+{
+    PHYSFS_File* file = nullptr;
+
+    if(append) {
+        file = PHYSFS_openAppend(path.c_str());
+    }
+    else {
+        file = PHYSFS_openWrite(path.c_str());
+    }
+
+    if(file) {
+        PHYSFS_writeBytes(file, m_vector.data(), m_vector.size());
+    }
+
+    return file;
+}
+
+ENetPacket* io::WriteBuffer::to_packet(enet_uint32 flags) const
+{
+    return enet_packet_create(m_vector.data(), m_vector.size(), flags);
+}