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#pragma once
#include "../Primitives/Rect.h"
#include <Containers/SmallVector.h>
using namespace Death::Containers;
namespace nCine
{
/// Contains data for a rectangles based animation
class RectAnimation
{
public:
/// Loop modes
enum class LoopMode
{
NoRepeat,
/// When the animation reaches the last frame it begins again from start
FromStart,
/// When the animation reaches the last frame it goes backward
Backward
};
/// Default constructor
RectAnimation()
: RectAnimation(1.0f / 60.0f, LoopMode::NoRepeat) {}
/// Constructor for an animation with a specified default frame duration, loop and rewind mode
RectAnimation(float defaultFrameDuration, LoopMode loopMode);
/// Returns `true` if the animation is paused
inline bool isPaused() const {
return isPaused_;
}
/// Sets the pause flag
inline void setPaused(bool isPaused) {
isPaused_ = isPaused;
}
/// Updates current frame based on time passed
void updateFrame(float interval);
/// Returns current frame
inline std::uint32_t frame() const {
return currentFrame_;
}
/// Sets current frame
void setFrame(std::uint32_t frameNum);
/// Returns the default frame duration in seconds
float defaultFrameDuration() const {
return defaultFrameDuration_;
}
/// Sets the default frame duration in seconds
inline void setDefaultFrameDuration(float defaultFrameDuration) {
defaultFrameDuration_ = defaultFrameDuration;
}
/// Returns the loop mode
LoopMode loopMode() const {
return loopMode_;
}
/// Sets the loop mode
inline void setLoopMode(LoopMode loopMode) {
loopMode_ = loopMode;
}
/// Adds a rectangle to the array specifying the frame duration
void addRect(const Recti& rect, float frameTime);
/// Creates a rectangle from origin and size and then adds it to the array, specifying the frame duration
void addRect(std::int32_t x, std::int32_t y, std::int32_t w, std::int32_t h, float frameTime);
/// Adds a rectangle to the array with the default frame duration
inline void addRect(const Recti& rect) {
addRect(rect, defaultFrameDuration_);
}
/// Creates a rectangle from origin and size and then adds it to the array, with the default frame duration
inline void addRect(std::int32_t x, std::int32_t y, std::int32_t w, std::int32_t h) {
addRect(x, y, w, h, defaultFrameDuration_);
}
/// Returns the current rectangle
inline const Recti& rect() const {
return rects_[currentFrame_];
}
/// Returns the current frame duration in seconds
inline float frameDuration() const {
return frameDurations_[currentFrame_];
}
/// Returns the array of all rectangles
inline SmallVectorImpl<Recti>& rectangles() {
return rects_;
}
/// Returns the constant array of all rectangles
inline const SmallVectorImpl<Recti>& rectangles() const {
return rects_;
}
/// Returns the array of all frame durations
inline SmallVectorImpl<float>& frameDurations() {
return frameDurations_;
}
/// Returns the constant array of all frame durations
inline const SmallVectorImpl<float>& frameDurations() const {
return frameDurations_;
}
private:
/// The default frame duratin if a custom one is not specified when adding a rectangle
float defaultFrameDuration_;
/// The looping mode
LoopMode loopMode_;
/// The rectangles array
SmallVector<Recti, 0> rects_;
/// The frame durations array
SmallVector<float, 0> frameDurations_;
/// Current frame
std::uint32_t currentFrame_;
/// Elapsed time since the last frame change
float elapsedFrameTime_;
/// The flag about the frame advance direction
bool goingForward_;
/// The pause flag
bool isPaused_;
};
}
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