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(sprite_manager->create("images/powerups/egg/egg.sprite")),
  30   lightsprite(sprite_manager->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   sound_manager->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   sprite->set_action((direction == LEFT) ? "left" : "right");
  42 }
  43
  44 void
  45 GrowUp::update(float elapsed_time)
  46 {
  47   movement = physic.get_movement(elapsed_time);
  48 }
  49
  50 void
  51 GrowUp::draw(DrawingContext& context){
  52   //Set Sprite rotation angle
  53   sprite->set_angle(get_pos().x * 360.0f / (32.0f * M_PI));
  54   //Draw the Sprite.
  55   MovingSprite::draw(context);
  56   //Draw shade
  57   shadesprite->draw(context, get_pos(), layer+1);
  58   //Draw the light when dark
  59   context.get_light( get_bbox().get_middle(), &light );
  60   if (light.red + light.green < 2.0){
  61     context.push_target();
  62     context.set_target(DrawingContext::LIGHTMAP);
  63     lightsprite->draw(context, get_bbox().get_middle(), 0);
  64     context.pop_target();
  65   }
  66 }
  67
  68 void
  69 GrowUp::collision_solid(const CollisionHit& hit)
  70 {
  71   if(hit.top)
  72     physic.set_velocity_y(0);
  73   if(hit.bottom && physic.get_velocity_y() > 0)
  74     physic.set_velocity_y(0);
  75   if(hit.left || hit.right) {
  76     physic.set_velocity_x(-physic.get_velocity_x());
  77     if(hit.left)
  78       sprite->set_action("right");
  79     else {
  80       sprite->set_action("left");
  81     }
  82
  83   }
  84 }
  85
  86 HitResponse
  87 GrowUp::collision(GameObject& other, const CollisionHit& hit )
  88 {
  89   Player* player = dynamic_cast<Player*>(&other);
  90   if(player != 0) {
  91     if(!player->add_bonus(GROWUP_BONUS, true)){
  92       // Tux can't grow right now.
  93       collision_solid( hit );
  94       return ABORT_MOVE;
  95     }
  96
  97     sound_manager->play("sounds/grow.ogg");
  98     remove_me();
  99
 100     return ABORT_MOVE;
 101   }
 102
 103   return FORCE_MOVE;
 104 }
 105
 106 void
 107 GrowUp::do_jump()
 108 {
 109   physic.set_velocity_y(-300);
 110 }
 111
 112 /* EOF */