src/object/growup.cpp

   1 //  SuperTux
   2 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   3 //
   4 //  This program is free software: you can redistribute it and/or modify
   5 //  it under the terms of the GNU General Public License as published by
   6 //  the Free Software Foundation, either version 3 of the License, or
   7 //  (at your option) any later version.
   8 //
   9 //  This program is distributed in the hope that it will be useful,
  10 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 //  GNU General Public License for more details.
  13 //
  14 //  You should have received a copy of the GNU General Public License
  15 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "audio/sound_manager.hpp"
  18 #include "object/growup.hpp"
  19 #include "object/player.hpp"
  20
  21 GrowUp::GrowUp(Direction direction) :
  22   MovingSprite(Vector(0,0), "images/powerups/egg/egg.sprite", LAYER_OBJECTS, COLGROUP_MOVING)
  23 {
  24   physic.enable_gravity(true);
  25   physic.set_velocity_x((direction == LEFT)?-100:100);
  26   sound_manager->preload("sounds/grow.ogg");
  27 }
  28
  29 void
  30 GrowUp::update(float elapsed_time)
  31 {
  32   movement = physic.get_movement(elapsed_time);
  33 }
  34
  35 void
  36 GrowUp::collision_solid(const CollisionHit& hit)
  37 {
  38   if(hit.top)
  39     physic.set_velocity_y(0);
  40   if(hit.bottom && physic.get_velocity_y() > 0)
  41     physic.set_velocity_y(0);
  42   if(hit.left || hit.right)
  43     physic.set_velocity_x(-physic.get_velocity_x());
  44 }
  45
  46 HitResponse
  47 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  48 {
  49   Player* player = dynamic_cast<Player*>(&other);
  50   if(player != 0) {
  51     if(!player->add_bonus(GROWUP_BONUS, true)){
  52       // Tux can't grow right now.
  53       collision_solid( hit );
  54       return ABORT_MOVE;
  55     }
  56
  57     sound_manager->play("sounds/grow.ogg");
  58     remove_me();
  59
  60     return ABORT_MOVE;
  61   }
  62
  63   return FORCE_MOVE;
  64 }
  65
  66 void
  67 GrowUp::do_jump()
  68 {
  69   physic.set_velocity_y(-300);
  70 }
  71
  72 /* EOF */