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 <math.h>
  18
  19 #include "audio/sound_manager.hpp"
  20 #include "object/growup.hpp"
  21 #include "object/player.hpp"
  22 #include "sprite/sprite.hpp"
  23 #include "sprite/sprite_manager.hpp"
  24
  25 GrowUp::GrowUp(Direction direction) :
  26   MovingSprite(Vector(0,0), "images/powerups/egg/egg.sprite", LAYER_OBJECTS, COLGROUP_MOVING),
  27   physic(),
  28   light(0.0f,0.0f,0.0f),
  29   shadesprite(SpriteManager::current()->create("images/powerups/egg/egg.sprite")),
  30   lightsprite(SpriteManager::current()->create("images/objects/lightmap_light/lightmap_light-small.sprite"))
  31 {
  32   physic.enable_gravity(true);
  33   physic.set_velocity_x((direction == LEFT)?-100:100);
  34   SoundManager::current()->preload("sounds/grow.ogg");
  35   //shadow to remain in place as egg rolls
  36   shadesprite->set_action("shadow");
  37   //set light for glow effect
  38   lightsprite->set_blend(Blend(GL_SRC_ALPHA, GL_ONE));
  39   lightsprite->set_color(Color(0.2f, 0.2f, 0.0f));
  40 }
  41
  42 void
  43 GrowUp::update(float elapsed_time)
  44 {
  45   movement = physic.get_movement(elapsed_time);
  46 }
  47
  48 void
  49 GrowUp::draw(DrawingContext& context)
  50 {
  51   if(physic.get_velocity_x() != 0) {
  52     //Set Sprite rotation angle
  53     sprite->set_angle(get_pos().x * 360.0f / (32.0f * M_PI));
  54   }
  55   //Draw the Sprite.
  56   MovingSprite::draw(context);
  57   //Draw shade
  58   shadesprite->draw(context, get_pos(), layer);
  59   //Draw the light when dark
  60   context.get_light( get_bbox().get_middle(), &light );
  61   if (light.red + light.green < 2.0){
  62     context.push_target();
  63     context.set_target(DrawingContext::LIGHTMAP);
  64     lightsprite->draw(context, get_bbox().get_middle(), 0);
  65     context.pop_target();
  66   }
  67 }
  68
  69 void
  70 GrowUp::collision_solid(const CollisionHit& hit)
  71 {
  72   if(hit.top)
  73     physic.set_velocity_y(0);
  74   if(hit.bottom && physic.get_velocity_y() > 0)
  75     physic.set_velocity_y(0);
  76   if(hit.left || hit.right) {
  77     physic.set_velocity_x(-physic.get_velocity_x());
  78   }
  79 }
  80
  81 HitResponse
  82 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  83 {
  84   Player* player = dynamic_cast<Player*>(&other);
  85   if(player != 0) {
  86     if(!player->add_bonus(GROWUP_BONUS, true)) {
  87       // Tux can't grow right now.
  88       collision_solid( hit );
  89       return ABORT_MOVE;
  90     }
  91
  92     SoundManager::current()->play("sounds/grow.ogg");
  93     remove_me();
  94
  95     return ABORT_MOVE;
  96   }
  97
  98   return FORCE_MOVE;
  99 }
 100
 101 void
 102 GrowUp::do_jump()
 103 {
 104   physic.set_velocity_y(-300);
 105 }
 106
 107 /* EOF */