sprites/SpriteFile.php

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<?php

abstract class SpriteFile {

    
  private $frames = array();
  private $spritefiletype;

  
  public function SpriteFile($filetype) {
    $this->spritefiletype = $filetype;
  }


  public function GetFrame($frame) {
      return $this->frames[$frame];
  }

  public function GetFrames() {
      return $this->frames;
  }


  public abstract function Compile();


  public function AddFrame(SpriteFrame $frame, $position=false) {
      /*
      if($position === false) {
          $position = sizeof($this->frames);
      } else if($position < 0) {
          $position = sizeof($this->frames) - $position;
      }
      */
      if($this->spritefiletype == substr(get_class($frame),0,3)) {
          //$this->frames[$position] = $frame;
          $this->frames[] = $frame;
      } else {
          //$this->frames[$position] = $frame->ToSpriteFrame($this->spritefiletype);
          $this->frames[] = $frame->ToSpriteFrame($this->spritefiletype);
      }
  }

  public function ReplaceFrame(SpriteFrame $frame, $position) {
      if($position < 0) {
          $position = sizeof($this->frames) - $position;
      }
      $this->frames[$position] = $frame->ToSpriteFrame($this->spritefiletype);
  }

  public function GetFrameCount() {
      return sizeof($this->frames);
  }

  public function DeleteFrame($frame) {
      unset($this->frames[$frame]);
  }

  public function ToPNG($frame) {
      return $this->frames[$frame]->ToPNG();
  }
}
?>