1 files changed, 71 insertions, 0 deletions
diff --git a/src/client/entity/animate.hh b/src/client/entity/animate.hh
new file mode 100644
index 0000000..79016ea
--- /dev/null
+++ b/src/client/entity/animate.hh
@@ -0,0 +1,71 @@
+#ifndef CLIENT_ENTITY_ANIMATE_HH_
+#define CLIENT_ENTITY_ANIMATE_HH_
+
+#include <algorithm>
+#include <chrono>
+#include <cmath>
+#include <ranges>
+#include <utility>
+#include <vector>
+
+#include <boost/circular_buffer.hpp>
+
+#include "client/entity/entity.hh"
+#include "client/movement/movement.hh"
+#include "client/settings.hh"
+#include "client/state/state.hh"
+#include "shared/entity/animate.hh"
+#include "shared/entity/entity.hh"
+#include "shared/movement/movement.hh"
+#include "shared/net/proto.hh"
+#include "shared/shared.hh"
+
+namespace client {
+
+class animate : virtual public shared::animate, virtual public client::entity {
+protected:
+    struct animate_update {
+        shared::tick_t tick_sequence; // tick or sequence, if LP then sequence.
+        shared::animate animate;
+        bool from_server;
+    };
+
+    // We have 1 second of potential player interpolation to use here when we
+    // initialise this with the server's tickrate.
+    boost::circular_buffer<animate_update> updates{state::tickrate};
+    shared::tick_t latest_sequence = 0;
+
+private:
+    float get_target_ticks_back() noexcept;
+
+public:
+    animate(shared::player&& p) noexcept
+        : shared::entity(p), shared::animate(p), client::entity(p) {}
+
+    animate(const proto::animate& proto) noexcept
+        : shared::entity(proto.entity()), shared::animate(proto),
+          client::entity(proto.entity()) {}
+
+public:
+    // Call when localplayer gets tick to update state timers.
+    void update_time_factor(const shared::tick_t& sequence,
+                            const shared::tick_t& tick) noexcept;
+
+    virtual void notify(const shared::animate& animate,
+                        const shared::tick_t& tick_sequence,
+                        const bool from_server) noexcept;
+
+    shared::tick_t& get_mutable_latest_sequence() noexcept {
+        return this->latest_sequence;
+    }
+    shared::tick_t get_latest_sequence() const noexcept {
+        return this->latest_sequence;
+    }
+    // An animate may be interpolated, however it's the moveable class that is
+    // required for extrapolation and other prediction.
+    void interpolate() noexcept;
+};
+
+} // namespace client
+
+#endif