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38 lines
1.5 KiB
C++
38 lines
1.5 KiB
C++
#pragma once
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#include <array>
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#include <chrono>
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#include <cstdint>
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#include <mutex>
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#include <optional>
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namespace dingosdk {
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// The active camera as the client last updated it: its world matrix (rows: right, up,
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// back, position) and vertical field of view in degrees. Written on the client thread,
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// read by the overlay to place things over the world. `camera` is the camera object itself:
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// the game moves its own camera after the client update, so the overlay reads the matrix
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// from it again when it draws (a freecam or noclip camera is already final here).
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struct GameView {
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std::array<float, 16> world{};
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float vertical_fov{};
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std::uintptr_t camera{};
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};
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namespace game_view_detail {
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inline std::mutex mutex;
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inline GameView latest;
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inline std::chrono::steady_clock::time_point at;
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} // namespace game_view_detail
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inline void publish_game_view(const GameView &view) noexcept {
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std::lock_guard lock(game_view_detail::mutex);
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game_view_detail::latest = view;
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game_view_detail::at = std::chrono::steady_clock::now();
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}
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// Nothing while the camera has not updated recently (loading, no local camera).
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inline std::optional<GameView> latest_game_view(std::chrono::milliseconds max_age = std::chrono::milliseconds(250)) noexcept {
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std::lock_guard lock(game_view_detail::mutex);
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if (game_view_detail::at == std::chrono::steady_clock::time_point{} ||
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std::chrono::steady_clock::now() - game_view_detail::at > max_age)
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return std::nullopt;
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return game_view_detail::latest;
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}
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} // namespace dingosdk
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