From c055eeef6d41269d11b2ddf7f9aba6f8867da65d Mon Sep 17 00:00:00 2001
From: Nikita Kostovsky <nikita@kostovsky.me>
Date: Tue, 23 Dec 2025 15:28:05 +0100
Subject: initial commit

---
 core/src/cpp/animation.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 core/src/cpp/animation.h

(limited to 'core/src/cpp/animation.h')

diff --git a/core/src/cpp/animation.h b/core/src/cpp/animation.h
new file mode 100644
index 0000000..d74ca75
--- /dev/null
+++ b/core/src/cpp/animation.h
@@ -0,0 +1,45 @@
+#pragma once
+
+#include "sprite.h"
+
+struct Animation : public Sprite
+{
+    explicit Animation(
+        SDL_Renderer* renderer,
+        const std::string& filename,
+        const int width,
+        const double durationS,
+        const bool repeat
+    );
+    ~Animation() override = default;
+
+public:
+    /*!
+     * \brief animation_ended - is the animation sequence ended as specified
+     * timestamp?
+     * \param timestamp
+     * \return true if ended, false otherwise
+     */
+    bool animation_ended(const TimeStamp timestamp) const;
+
+    /*!
+     * \brief frame - compute the frame number at current time for the the
+     * animation started at timestamp
+     * \param timestamp
+     * \return frame number
+     */
+    int frame(const TimeStamp timestamp) const;
+
+    /*!
+     * \brief rect - choose the right frame from the texture
+     * \param timestamp
+     * \return frame rect
+     */
+    SDL_Rect rect(const TimeStamp timestamp) const;
+
+    /*!
+     * \brief durationS - durationS of the animation sequence in seconds
+     */
+    const double durationS{1.};
+    const bool repeat{false};  // should we repeat the animation?
+};
-- 
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