Sprite.cpp

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/*
 * =====================================================================================
 *
 *       Filename:  Sprite.cpp
 *
 *    Description:
 *
 *        Created:  17/01/2018 19:48:08
 *
 *         Author:  Quentin Bazin, <quent42340@gmail.com>
 *
 * =====================================================================================
 */
#include "gk/graphics/Sprite.hpp"
#include "gk/core/Exception.hpp"

namespace gk {

Sprite::Sprite(const std::string &textureName, u16 frameWidth, u16 frameHeight, bool isAnimated) {
    load(textureName, frameWidth, frameHeight, isAnimated);
}

void Sprite::load(const Sprite &sprite) {
    Image::load(sprite);

    m_animations = sprite.m_animations;

    m_currentAnimation = sprite.m_currentAnimation;
    m_previousAnimation = sprite.m_previousAnimation;

    m_frameWidth = sprite.m_frameWidth;
    m_frameHeight = sprite.m_frameHeight;

    m_isAnimated = sprite.m_isAnimated;

    setCurrentFrame(sprite.m_currentFrame);
}

void Sprite::load(const std::string &textureName, u16 frameWidth, u16 frameHeight, bool isAnimated) {
    Image::load(textureName);

    m_frameWidth = frameWidth;
    m_frameHeight = frameHeight;

    setPosRect(0, 0, frameWidth, frameHeight);

    setCurrentFrame(0);

    m_isAnimated = isAnimated;
}

void Sprite::updateAnimations() {
    if (m_animations.size() > 0 && m_isAnimated) {
        if(m_currentAnimation >= m_animations.size()) {
            throw EXCEPTION("Trying to play inexistant animation:", m_currentAnimation, "| Animations:", m_animations.size());
        }

        m_animations[m_currentAnimation].play();

        setCurrentFrame(m_animations[m_currentAnimation].currentFrame());
    }
}

void Sprite::setCurrentFrame(u16 currentFrame) {
    u16 frameX = (currentFrame % (Image::width() / m_frameWidth)) * m_frameWidth;
    u16 frameY = (currentFrame / (Image::width() / m_frameWidth)) * m_frameHeight;

    setClipRect(frameX, frameY, m_frameWidth, m_frameHeight);

    m_currentFrame = currentFrame;
}

void Sprite::setCurrentAnimation(u16 currentAnimation) {
    if (m_previousAnimation != currentAnimation)
        m_animations[m_currentAnimation].reset();

    m_previousAnimation = m_currentAnimation;
    m_currentAnimation = currentAnimation;
}

} // namespace gk