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 #include "sprite/sprite.hpp"
  21 #include "sprite/sprite_manager.hpp"
  22
  23 GrowUp::GrowUp(Direction direction) :
  24   MovingSprite(Vector(0,0), "images/powerups/egg/egg.sprite", LAYER_OBJECTS, COLGROUP_MOVING),
  25   physic(),
  26   light(0.0f,0.0f,0.0f),
  27   lightsprite(sprite_manager->create("images/objects/lightmap_light/lightmap_light-small.sprite"))
  28 {
  29   physic.enable_gravity(true);
  30   physic.set_velocity_x((direction == LEFT)?-100:100);
  31   sound_manager->preload("sounds/grow.ogg");
  32   //set light for glow effect
  33   lightsprite->set_blend(Blend(GL_SRC_ALPHA, GL_ONE));
  34   lightsprite->set_color(Color(0.2f, 0.2f, 0.0f));
  35 }
  36
  37 void
  38 GrowUp::update(float elapsed_time)
  39 {
  40   movement = physic.get_movement(elapsed_time);
  41 }
  42
  43 void
  44 GrowUp::draw(DrawingContext& context){
  45   //Draw the Sprite.
  46   MovingSprite::draw(context);
  47   //Draw the light when dark
  48   context.get_light( get_bbox().get_middle(), &light );
  49   if (light.red + light.green < 2.0){
  50     context.push_target();
  51     context.set_target(DrawingContext::LIGHTMAP);
  52     lightsprite->draw(context, get_bbox().get_middle(), 0);
  53     context.pop_target();
  54   }
  55 }
  56
  57 void
  58 GrowUp::collision_solid(const CollisionHit& hit)
  59 {
  60   if(hit.top)
  61     physic.set_velocity_y(0);
  62   if(hit.bottom && physic.get_velocity_y() > 0)
  63     physic.set_velocity_y(0);
  64   if(hit.left || hit.right)
  65     physic.set_velocity_x(-physic.get_velocity_x());
  66 }
  67
  68 HitResponse
  69 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  70 {
  71   Player* player = dynamic_cast<Player*>(&other);
  72   if(player != 0) {
  73     if(!player->add_bonus(GROWUP_BONUS, true)){
  74       // Tux can't grow right now.
  75       collision_solid( hit );
  76       return ABORT_MOVE;
  77     }
  78
  79     sound_manager->play("sounds/grow.ogg");
  80     remove_me();
  81
  82     return ABORT_MOVE;
  83   }
  84
  85   return FORCE_MOVE;
  86 }
  87
  88 void
  89 GrowUp::do_jump()
  90 {
  91   physic.set_velocity_y(-300);
  92 }
  93
  94 /* EOF */