-// $Id$
-//
// SuperTux
// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation; either version 2
-// of the License, or (at your option) any later version.
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-#include <config.h>
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
-#include <stdio.h>
+#include "badguy/flyingsnowball.hpp"
-#include "flyingsnowball.hpp"
-#include "random_generator.hpp"
+#include "math/random_generator.hpp"
#include "object/sprite_particle.hpp"
-
-static const float FLYTIME = 1.0f;
-static const float FLYSPEED = -100.0f;
+#include "object/player.hpp"
+#include "supertux/object_factory.hpp"
+#include "supertux/sector.hpp"
namespace {
- const float PUFF_PROBABILITY = 0.1f; /**< chanche of puffs being spawned in the current cycle */
- const float PUFF_INTERVAL_MIN = 0.1f; /**< spawn new puff of smoke at most that often */
- const float PUFF_INTERVAL_MAX = 1.1f; /**< spawn new puff of smoke at least that often */
+const float PUFF_INTERVAL_MIN = 4.0f; /**< spawn new puff of smoke at most that often */
+const float PUFF_INTERVAL_MAX = 8.0f; /**< spawn new puff of smoke at least that often */
}
-FlyingSnowBall::FlyingSnowBall(const lisp::Lisp& reader)
- : BadGuy(reader, "images/creatures/flying_snowball/flying_snowball.sprite")
+FlyingSnowBall::FlyingSnowBall(const Reader& reader) :
+ BadGuy(reader, "images/creatures/flying_snowball/flying_snowball.sprite"),
+ normal_propeller_speed(),
+ puff_timer()
{
- physic.enable_gravity(false);
+ physic.enable_gravity(true);
}
-FlyingSnowBall::FlyingSnowBall(const Vector& pos)
- : BadGuy(pos, "images/creatures/flying_snowball/flying_snowball.sprite")
+FlyingSnowBall::FlyingSnowBall(const Vector& pos) :
+ BadGuy(pos, "images/creatures/flying_snowball/flying_snowball.sprite"),
+ normal_propeller_speed(),
+ puff_timer()
{
- physic.enable_gravity(false);
+ physic.enable_gravity(true);
}
void
-FlyingSnowBall::write(lisp::Writer& writer)
+FlyingSnowBall::initialize()
{
- writer.start_list("flyingsnowball");
-
- writer.write_float("x", start_position.x);
- writer.write_float("y", start_position.y);
-
- writer.end_list("flyingsnowball");
+ sprite->set_action(dir == LEFT ? "left" : "right");
}
void
FlyingSnowBall::activate()
{
- sprite->set_action(dir == LEFT ? "left" : "right");
- mode = FLY_UP;
- physic.set_velocity_y(FLYSPEED);
- timer.start(FLYTIME/2);
- puff_timer.start(systemRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
+ puff_timer.start(gameRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
+ normal_propeller_speed = gameRandom.randf(0.95, 1.05);
}
bool
FlyingSnowBall::collision_squished(GameObject& object)
{
sprite->set_action(dir == LEFT ? "squished-left" : "squished-right");
+ physic.set_acceleration_y(0);
+ physic.set_velocity_y(0);
kill_squished(object);
return true;
}
void
FlyingSnowBall::active_update(float elapsed_time)
{
- if(timer.check()) {
- if(mode == FLY_UP) {
- mode = FLY_DOWN;
- physic.set_velocity_y(-FLYSPEED);
- // stop puffing
- puff_timer.stop();
+ const float grav = Sector::current()->get_gravity() * 100.0f;
+ if (get_pos().y > start_position.y + 2*32) {
- } else if(mode == FLY_DOWN) {
- mode = FLY_UP;
- physic.set_velocity_y(FLYSPEED);
+ // Flying too low - increased propeller speed
+ physic.set_acceleration_y(-grav*1.2);
- // roll a dice whether to start puffing
- if (systemRandom.randf(0, 1) < PUFF_PROBABILITY) {
- puff_timer.start(systemRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
- }
+ physic.set_velocity_y(physic.get_velocity_y() * 0.99);
+
+ } else if (get_pos().y < start_position.y - 2*32) {
+
+ // Flying too high - decreased propeller speed
+ physic.set_acceleration_y(-grav*0.8);
+
+ physic.set_velocity_y(physic.get_velocity_y() * 0.99f);
+
+ } else {
+
+ // Flying at acceptable altitude - normal propeller speed
+ physic.set_acceleration_y(-grav*normal_propeller_speed);
- }
- timer.start(FLYTIME);
}
+
movement=physic.get_movement(elapsed_time);
Player* player = this->get_nearest_player();
// spawn smoke puffs
if (puff_timer.check()) {
Vector ppos = bbox.get_middle();
- Vector pspeed = Vector(systemRandom.randf(-10, 10), 150);
+ Vector pspeed = Vector(gameRandom.randf(-10, 10), 150);
Vector paccel = Vector(0,0);
Sector::current()->add_object(new SpriteParticle("images/objects/particles/smoke.sprite", "default", ppos, ANCHOR_MIDDLE, pspeed, paccel, LAYER_OBJECTS-1));
- puff_timer.start(systemRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
+ puff_timer.start(gameRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
+
+ normal_propeller_speed = gameRandom.randf(0.95, 1.05);
+ physic.set_velocity_y(physic.get_velocity_y() - 50);
}
}
-IMPLEMENT_FACTORY(FlyingSnowBall, "flyingsnowball")
+/* EOF */