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   sprite->set_action((direction == LEFT) ? "left" : "right");
  37 }
  38
  39 void
  40 GrowUp::update(float elapsed_time)
  41 {
  42   movement = physic.get_movement(elapsed_time);
  43 }
  44
  45 void
  46 GrowUp::draw(DrawingContext& context){
  47   //Draw the Sprite.
  48   MovingSprite::draw(context);
  49   //Draw the light when dark
  50   context.get_light( get_bbox().get_middle(), &light );
  51   if (light.red + light.green < 2.0){
  52     context.push_target();
  53     context.set_target(DrawingContext::LIGHTMAP);
  54     lightsprite->draw(context, get_bbox().get_middle(), 0);
  55     context.pop_target();
  56   }
  57 }
  58
  59 void
  60 GrowUp::collision_solid(const CollisionHit& hit)
  61 {
  62   if(hit.top)
  63     physic.set_velocity_y(0);
  64   if(hit.bottom && physic.get_velocity_y() > 0)
  65     physic.set_velocity_y(0);
  66   if(hit.left || hit.right) {
  67     physic.set_velocity_x(-physic.get_velocity_x());
  68     if(hit.left)
  69       sprite->set_action("right");
  70     else {
  71       sprite->set_action("left");
  72     }
  73
  74   }
  75 }
  76
  77 HitResponse
  78 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  79 {
  80   Player* player = dynamic_cast<Player*>(&other);
  81   if(player != 0) {
  82     if(!player->add_bonus(GROWUP_BONUS, true)){
  83       // Tux can't grow right now.
  84       collision_solid( hit );
  85       return ABORT_MOVE;
  86     }
  87
  88     sound_manager->play("sounds/grow.ogg");
  89     remove_me();
  90
  91     return ABORT_MOVE;
  92   }
  93
  94   return FORCE_MOVE;
  95 }
  96
  97 void
  98 GrowUp::do_jump()
  99 {
 100   physic.set_velocity_y(-300);
 101 }
 102
 103 /* EOF */