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   physic()
  24 {
  25   physic.enable_gravity(true);
  26   physic.set_velocity_x((direction == LEFT)?-100:100);
  27   sound_manager->preload("sounds/grow.ogg");
  28 }
  29
  30 void
  31 GrowUp::update(float elapsed_time)
  32 {
  33   movement = physic.get_movement(elapsed_time);
  34 }
  35
  36 void
  37 GrowUp::collision_solid(const CollisionHit& hit)
  38 {
  39   if(hit.top)
  40     physic.set_velocity_y(0);
  41   if(hit.bottom && physic.get_velocity_y() > 0)
  42     physic.set_velocity_y(0);
  43   if(hit.left || hit.right)
  44     physic.set_velocity_x(-physic.get_velocity_x());
  45 }
  46
  47 HitResponse
  48 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  49 {
  50   Player* player = dynamic_cast<Player*>(&other);
  51   if(player != 0) {
  52     if(!player->add_bonus(GROWUP_BONUS, true)){
  53       // Tux can't grow right now.
  54       collision_solid( hit );
  55       return ABORT_MOVE;
  56     }
  57
  58     sound_manager->play("sounds/grow.ogg");
  59     remove_me();
  60
  61     return ABORT_MOVE;
  62   }
  63
  64   return FORCE_MOVE;
  65 }
  66
  67 void
  68 GrowUp::do_jump()
  69 {
  70   physic.set_velocity_y(-300);
  71 }
  72
  73 /* EOF */