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   lightsprite(sprite_manager->create("images/objects/lightmap_light/lightmap_light-small.sprite"))
  30 {
  31   physic.enable_gravity(true);
  32   physic.set_velocity_x((direction == LEFT)?-100:100);
  33   sound_manager->preload("sounds/grow.ogg");
  34   //set light for glow effect
  35   lightsprite->set_blend(Blend(GL_SRC_ALPHA, GL_ONE));
  36   lightsprite->set_color(Color(0.2f, 0.2f, 0.0f));
  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   //Set Sprite rotation angle
  48   sprite->set_angle(get_pos().x * 360.0f / (32.0f * M_PI));
  49   //Draw the Sprite.
  50   MovingSprite::draw(context);
  51   //Draw the light when dark
  52   context.get_light( get_bbox().get_middle(), &light );
  53   if (light.red + light.green < 2.0){
  54     context.push_target();
  55     context.set_target(DrawingContext::LIGHTMAP);
  56     lightsprite->draw(context, get_bbox().get_middle(), 0);
  57     context.pop_target();
  58   }
  59 }
  60
  61 void
  62 GrowUp::collision_solid(const CollisionHit& hit)
  63 {
  64   if(hit.top)
  65     physic.set_velocity_y(0);
  66   if(hit.bottom && physic.get_velocity_y() > 0)
  67     physic.set_velocity_y(0);
  68   if(hit.left || hit.right)
  69     physic.set_velocity_x(-physic.get_velocity_x());
  70 }
  71
  72 HitResponse
  73 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  74 {
  75   Player* player = dynamic_cast<Player*>(&other);
  76   if(player != 0) {
  77     if(!player->add_bonus(GROWUP_BONUS, true)){
  78       // Tux can't grow right now.
  79       collision_solid( hit );
  80       return ABORT_MOVE;
  81     }
  82
  83     sound_manager->play("sounds/grow.ogg");
  84     remove_me();
  85
  86     return ABORT_MOVE;
  87   }
  88
  89   return FORCE_MOVE;
  90 }
  91
  92 void
  93 GrowUp::do_jump()
  94 {
  95   physic.set_velocity_y(-300);
  96 }
  97
  98 /* EOF */