[Super-tux-commit] supertux/src background.cpp,NONE,1.1 background.h,NONE,1.1

[Matze B. <mat...@us...>]

Update of /cvsroot/super-tux/supertux/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27235

Added Files:
	background.cpp background.h 
Log Message:
forgot to add some files

--- NEW FILE: background.h ---
#ifndef __BACKGROUND_H__
#define __BACKGROUND_H__

#include "texture.h"
#include "game_object.h"
#include "drawable.h"

enum {
  BACKGROUND_GRADIENT,
  BACKGROUND_IMAGE
};

class DisplayManager;

class Background : public _GameObject, public Drawable
{
public:
  Background(DisplayManager& displaymanager);
  virtual ~Background();

  void set_image(Surface* image, float bkgd_speed);

  void set_gradient(Color top, Color bottom);

  virtual std::string type() const
  { return "Background"; }

  virtual void action(float elapsed_time);

  virtual void draw(ViewPort& viewport, int layer);

private:
  int bgtype;
  float speed;
  Surface* image;
  Color gradient_top, gradient_bottom;
};

#endif


--- NEW FILE: background.cpp ---
#include "background.h"

#include "globals.h"
#include "viewport.h"
#include "display_manager.h"

Background::Background(DisplayManager& displaymanager)
{
  displaymanager.add_drawable(this, LAYER_BACKGROUND0);
}

Background::~Background()
{
}

void
Background::action(float)
{
}

void
Background::set_image(Surface* image, float speed)
{
  bgtype = BACKGROUND_IMAGE;
  this->image = image;
  this->speed = speed;
}

void
Background::set_gradient(Color top, Color bottom)
{
  bgtype = BACKGROUND_GRADIENT;
  gradient_top = top;
  gradient_bottom = bottom;
}

void
Background::draw(ViewPort& viewport, int )
{
  if(bgtype == BACKGROUND_GRADIENT) {
    drawgradient(gradient_top, gradient_bottom);
  } else if(bgtype == BACKGROUND_IMAGE) {
    int sx = int(-viewport.get_translation().x * float(speed/100.))
      % image->w - image->w;
    int sy = int(-viewport.get_translation().y * float(speed/100.))
      % image->h - image->h;
    for(int x = sx; x < screen->w; x += image->w)
      for(int y = sy; y < screen->h; y += image->h)
        image->draw(x, y);
  }
}