summaryrefslogblamecommitdiff
path: root/src/animatedsprite.cpp
blob: 9f4e46bd08c5e7c968e9250b2593f32a9933bcd1 (plain) (tree)
1
2
3
4
5
6
7
8
  
                   

                                                            
  
                                         
  
                                                                        



                                                                        
                                                                   




                                                                     
                                                                         


                           
 
                     
 


                                
                                      
 


                                                  
                               





                    
             
 
                    
 

                  

                                    

                                          
                              

 
                                                                              
 
                                                             
                                                        

                    


                                               



                                 
                      

 
                            
 

                                                                    


                    

               

 
                                                   
 

                                                      
                     
 



                                                                           
     



                                         

                    
     

                 

 
                                     

                                                                    

                                           
 
                                                    
                                         
                     
 


                                       


                                      
                                    
     
                                               
                                  
     


                                                      

 
                                                              
 
                                                    

                     
                       
 



                                                           
 
                                                   
                            
 
                                                   
 





                                             

     
                
 
 
                                                                       
 
                
                     
 





                                            


                                                       

 
                                                            
 




                                
                         








                                                                               

                    
     

                 
 
 






                                              


                                       

 
                                    
 



                                                             

 
                                     
 



                                                              
 
 
                                             


                                      
/*
 *  The Mana Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *
 *  This file is part of The Mana Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "animatedsprite.h"

#include "graphics.h"

#include "resources/action.h"
#include "resources/animation.h"
#include "resources/image.h"
#include "resources/resourcemanager.h"

#include <cassert>

AnimatedSprite::AnimatedSprite(SpriteDef *sprite):
    mDirection(DIRECTION_DOWN),
    mLastTime(0),
    mFrameIndex(0),
    mFrameTime(0),
    mSprite(sprite),
    mAction(0),
    mAnimation(0),
    mFrame(0)
{
    assert(mSprite);

    mAlpha = 1.0f;

    // Take possession of the sprite
    mSprite->incRef();

    // Play the stand animation by default
    play(SpriteAction::STAND);
}

AnimatedSprite *AnimatedSprite::load(const std::string &filename, int variant)
{
    ResourceManager *resman = ResourceManager::getInstance();
    SpriteDef *s = resman->getSprite(filename, variant);
    if (!s)
        return NULL;
    AnimatedSprite *as = new AnimatedSprite(s);
    s->decRef();
    return as;
}

AnimatedSprite::~AnimatedSprite()
{
    mSprite->decRef();
}

bool AnimatedSprite::reset()
{
    bool ret = mFrameIndex !=0 || mFrameTime != 0 || mLastTime != 0;

    mFrameIndex = 0;
    mFrameTime = 0;
    mLastTime = 0;

    return ret;
}

bool AnimatedSprite::play(std::string spriteAction)
{
    Action *action = mSprite->getAction(spriteAction);
    if (!action)
        return false;

    mAction = action;
    Animation *animation = mAction->getAnimation(mDirection);

    if (animation && animation != mAnimation && animation->getLength() > 0)
    {
        mAnimation = animation;
        mFrame = mAnimation->getFrame(0);

        reset();

        return true;
    }

    return false;
}

bool AnimatedSprite::update(int time)
{
    // Avoid freaking out at first frame or when tick_time overflows
    if (time < mLastTime || mLastTime == 0)
        mLastTime = time;

    // If not enough time has passed yet, do nothing
    if (time <= mLastTime || !mAnimation)
        return false;

    unsigned int dt = time - mLastTime;
    mLastTime = time;

    Animation *animation = mAnimation;
    Frame *frame = mFrame;

    if (!updateCurrentAnimation(dt))
    {
        // Animation finished, reset to default
        play(SpriteAction::STAND);
    }

    // Make sure something actually changed
    return animation != mAnimation || frame != mFrame;
}

bool AnimatedSprite::updateCurrentAnimation(unsigned int time)
{
    if (!mFrame || Animation::isTerminator(*mFrame))
        return false;

    mFrameTime += time;

    while (mFrameTime > mFrame->delay && mFrame->delay > 0)
    {
        mFrameTime -= mFrame->delay;
        mFrameIndex++;

        if (mFrameIndex == mAnimation->getLength())
            mFrameIndex = 0;

        mFrame = mAnimation->getFrame(mFrameIndex);

        if (Animation::isTerminator(*mFrame))
        {
            mAnimation = 0;
            mFrame = 0;
            return false;
        }
    }

    return true;
}

bool AnimatedSprite::draw(Graphics *graphics, int posX, int posY) const
{
    if (!mFrame)
        return false;

    if (!mFrame->image)
      return false;

    if (mFrame->image->getAlpha() != mAlpha)
        mFrame->image->setAlpha(mAlpha);

    return graphics->drawImage(mFrame->image,
                               posX + mFrame->offsetX,
                               posY + mFrame->offsetY);
}

bool AnimatedSprite::setDirection(SpriteDirection direction)
{
    if (mDirection != direction)
    {
        mDirection = direction;

        if (!mAction)
            return false;

        Animation *animation = mAction->getAnimation(mDirection);

        if (animation && animation != mAnimation && animation->getLength() > 0)
        {
            mAnimation = animation;
            mFrame = mAnimation->getFrame(0);
            reset();
        }

        return true;
    }

    return false;
}

size_t AnimatedSprite::getCurrentFrame() const
{
    return mFrameIndex;
}

size_t AnimatedSprite::getFrameCount() const
{
    if (mAnimation)
        return mAnimation->getLength();
    return 0;
}

int AnimatedSprite::getWidth() const
{
    if (mFrame)
        return mFrame->image ? mFrame->image->getWidth() : 0;
    else
        return 0;
}

int AnimatedSprite::getHeight() const
{
    if (mFrame)
        return mFrame->image ? mFrame->image->getHeight() : 0;
    else
        return 0;
}

const Image* AnimatedSprite::getImage() const
{
    return mFrame ? mFrame->image : 0;
}