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#include "RectAnimation.h"
#include "../../Main.h"
namespace nCine
{
RectAnimation::RectAnimation(float defaultFrameDuration, LoopMode loopMode)
: defaultFrameDuration_(defaultFrameDuration), loopMode_(loopMode), rects_(4), frameDurations_(4),
currentFrame_(0), elapsedFrameTime_(0.0f), goingForward_(true), isPaused_(true)
{
}
void RectAnimation::updateFrame(float timeMult)
{
// No frame calculation if the animation is paused or has only one rect
if (isPaused_ || rects_.size() < 2) {
return;
}
elapsedFrameTime_ += timeMult;
// Determine the next frame rectangle
while (elapsedFrameTime_ >= frameDurations_[currentFrame_]) {
elapsedFrameTime_ -= frameDurations_[currentFrame_];
if (goingForward_) {
if (currentFrame_ == rects_.size() - 1) {
if (loopMode_ == LoopMode::Backward) {
goingForward_ = false;
currentFrame_--;
} else {
if (loopMode_ == LoopMode::NoRepeat) {
isPaused_ = true;
} else {
currentFrame_ = 0;
}
}
} else {
currentFrame_++;
}
} else {
if (currentFrame_ == 0) {
if (loopMode_ == LoopMode::NoRepeat) {
isPaused_ = true;
} else {
goingForward_ = true;
currentFrame_++;
}
} else {
currentFrame_--;
}
}
}
}
void RectAnimation::setFrame(std::uint32_t frameNum)
{
DEATH_ASSERT(frameNum < rects_.size());
currentFrame_ = frameNum;
}
void RectAnimation::addRect(const Recti& rect, float frameDuration)
{
rects_.push_back(rect);
frameDurations_.push_back(frameDuration);
}
void RectAnimation::addRect(std::int32_t x, std::int32_t y, std::int32_t w, std::int32_t h, float frameDuration)
{
rects_.push_back(Recti(x, y, w, h));
frameDurations_.push_back(frameDuration);
}
}
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