4160Project/multisprite.cpp at master · tbreck/4160Project · GitHub

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#include "multisprite.h"
#include "gameData.h"
#include "imageFactory.h"

void MultiSprite::advanceFrame(Uint32 ticks) {
	timeSinceLastFrame += ticks;
	if (timeSinceLastFrame > frameInterval) {
    currentFrame = (currentFrame+1) % numberOfFrames;
		timeSinceLastFrame = 0;
	}
}

MultiSprite::~MultiSprite() {
	for (auto &image : images) {
		delete image;
	}
}

MultiSprite::MultiSprite( const std::string& name) :
  Drawable(name,
           Vector2f(Gamedata::getInstance().getXmlInt(name+"/startLoc/x"),
                    Gamedata::getInstance().getXmlInt(name+"/startLoc/y")),
           Vector2f(Gamedata::getInstance().getXmlInt(name+"/speedX"),
                    Gamedata::getInstance().getXmlInt(name+"/speedY")),
           Gamedata::getInstance().getXmlFloat(name+"/scale")
           ),
  images( ImageFactory::getInstance().getImages(name) ),

  currentFrame(0),
  numberOfFrames( Gamedata::getInstance().getXmlInt(name+"/frames") ),
  frameInterval( Gamedata::getInstance().getXmlInt(name+"/frameInterval")),
  timeSinceLastFrame( 0 ),
  worldWidth(Gamedata::getInstance().getXmlInt("world/width")),
  worldHeight(Gamedata::getInstance().getXmlInt("world/height"))
{ }

void MultiSprite::draw() const {
  images[currentFrame]->draw(getX(), getY(), getScale());
}

void MultiSprite::update(Uint32 ticks) {
  advanceFrame(ticks);

  Vector2f incr = getVelocity() * static_cast<float>(ticks) * 0.001;
  setPosition(getPosition() + incr);

  if ( getY() < 0) {
    setVelocityY( fabs( getVelocityY() ) );
  }
  if ( getY() + getScaledHeight() > worldHeight) {
    setVelocityY( -fabs( getVelocityY() ) );
  }

  if ( getX() < 0) {
    setVelocityX( fabs( getVelocityX() ) );
  }
  if ( getX() + getScaledWidth() > worldWidth) {
    setVelocityX( -fabs( getVelocityX() ) );
  }

}