Hi
I need help with animations,
the Issue is the animations are way to jittery and inconsistant I feel iam using the deltaTime wrong,
as it is almost always lower than my switchTime (time to switch the animation) and if I lower the switchTime the animations becomes too fast.
Is it just because iam on a fast machine and there is no way around it ?
main.cpp
#include <iostream>
#include <SFML\Graphics.hpp>
#include "Animations.h"
int main()
{
sf::RenderWindow window(sf::VideoMode(512, 512), "SFML", sf::Style::Close | sf::Style::Resize);
sf::RectangleShape player(sf::Vector2f(100.0f, 100.0f));
player.setPosition(206.0f, 206.0f);
sf::Texture playerTexture;
playerTexture.loadFromFile("bat-sprite.png");
player.setTexture(&playerTexture);
Animations animation(&playerTexture, sf::Vector2u(4, 4), 0.005f);
float deltaTime = 0.0f;
sf::Clock clock;
while (window.isOpen())
{
deltaTime = clock.restart().asSeconds();
sf::Event evnt;
while (window.pollEvent(evnt))
{
switch (evnt.type)
{
case sf::Event::Closed :
window.close();
break;
}
}
animation.update(1, deltaTime);
player.setTextureRect(animation.uvRect);
window.clear(sf::Color(150,150,150));
window.draw(player);
window.display();
}
return 0;
}
Animation.h
#include <SFML\Graphics.hpp>
class Animations
{
public:
Animations(sf::Texture* texture, sf::Vector2u imageCount, float swtichTime);
void update(int row, float deltaTime);
public:
sf::IntRect uvRect;
private:
sf::Vector2u imagecount;
sf::Vector2u currentImage;
float totalTime;
float switchTime;
};
Animations.cpp
#include "Animations.h"
#include <iostream>
Animations::Animations(sf::Texture* texture, sf::Vector2u imageCount, float swtichTime)
{
this->imagecount = imageCount;
this->switchTime = swtichTime;
totalTime = 0.0f;
currentImage.x = 0;
uvRect.width = texture->getSize().x / float(imageCount.x);
uvRect.height = texture->getSize().y / float(imageCount.y);
}
void Animations::update(int row, float deltaTime)
{
currentImage.y = row;
totalTime = deltaTime;
//std::cout << "Total Time : " << totalTime << " SwitchTime: " << switchTime << " result :" << (totalTime >= switchTime) << std::endl;
if (totalTime >= switchTime)
{
//std::cout << currentImage.x << std::endl;
totalTime -= switchTime;
currentImage.x++;
if (currentImage.x >= imagecount.x) {
currentImage.x = 0;
}
}
uvRect.left = currentImage.x * uvRect.width;
uvRect.top = currentImage.y * uvRect.height;
}
Any help is appreciated
