-#include <config.h>
-#include <stdio.h>
+// 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 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
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// 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, see <http://www.gnu.org/licenses/>.
-#include "flyingsnowball.h"
+#include "badguy/flyingsnowball.hpp"
-static const float FLYTIME = 1.0;
-static const float FLYSPEED = 100.0;
+#include "math/random_generator.hpp"
+#include "object/sprite_particle.hpp"
+#include "object/player.hpp"
+#include "supertux/object_factory.hpp"
+#include "supertux/sector.hpp"
-FlyingSnowBall::FlyingSnowBall(const lisp::Lisp& reader)
+namespace {
+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 Reader& reader) :
+ BadGuy(reader, "images/creatures/flying_snowball/flying_snowball.sprite"),
+ normal_propeller_speed(),
+ puff_timer()
{
- reader.get("x", start_position.x);
- reader.get("y", start_position.y);
- bbox.set_size(31.8, 31.8);
- sprite = sprite_manager->create("flyingsnowball");
- physic.enable_gravity(false);
+ physic.enable_gravity(true);
}
-FlyingSnowBall::FlyingSnowBall(float pos_x, float pos_y)
+FlyingSnowBall::FlyingSnowBall(const Vector& pos) :
+ BadGuy(pos, "images/creatures/flying_snowball/flying_snowball.sprite"),
+ normal_propeller_speed(),
+ puff_timer()
{
- start_position.x = pos_x;
- start_position.y = pos_y;
- bbox.set_size(31.8, 31.8);
- sprite = sprite_manager->create("flyingsnowball");
- 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
+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));
+ normal_propeller_speed = systemRandom.randf(0.95, 1.05);
}
bool
-FlyingSnowBall::collision_squished(Player& player)
+FlyingSnowBall::collision_squished(GameObject& object)
{
sprite->set_action(dir == LEFT ? "squished-left" : "squished-right");
- kill_squished(player);
+ physic.set_acceleration_y(0);
+ physic.set_velocity_y(0);
+ kill_squished(object);
return true;
}
-HitResponse
-FlyingSnowBall::collision_solid(GameObject& , const CollisionHit& hit)
+void
+FlyingSnowBall::collision_solid(const CollisionHit& hit)
{
- if(fabsf(hit.normal.y) > .5) { // hit floor or roof?
+ if(hit.top || hit.bottom) {
physic.set_velocity_y(0);
}
-
- return CONTINUE;
}
void
-FlyingSnowBall::active_action(float elapsed_time)
+FlyingSnowBall::active_update(float elapsed_time)
{
- if(timer.check()) {
- if(mode == FLY_UP) {
- mode = FLY_DOWN;
- physic.set_velocity_y(-FLYSPEED);
- } else if(mode == FLY_DOWN) {
- mode = FLY_UP;
- physic.set_velocity_y(FLYSPEED);
- }
- timer.start(FLYTIME);
+
+ const float grav = Sector::current()->get_gravity() * 100.0f;
+ if (get_pos().y > start_position.y + 2*32) {
+
+ // Flying too low - increased propeller speed
+ physic.set_acceleration_y(-grav*1.2);
+
+ 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);
+
}
+
movement=physic.get_movement(elapsed_time);
- dir= Sector::current()->player->get_pos().x>get_pos().x?RIGHT:LEFT;
- sprite->set_action(dir == LEFT ? "left" : "right");
+
+ Player* player = this->get_nearest_player();
+ if (player) {
+ dir = (player->get_pos().x > get_pos().x) ? RIGHT : LEFT;
+ sprite->set_action(dir == LEFT ? "left" : "right");
+ }
+
+ // spawn smoke puffs
+ if (puff_timer.check()) {
+ Vector ppos = bbox.get_middle();
+ Vector pspeed = Vector(systemRandom.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));
+
+ normal_propeller_speed = systemRandom.randf(0.95, 1.05);
+ physic.set_velocity_y(physic.get_velocity_y() - 50);
+ }
}
-IMPLEMENT_FACTORY(FlyingSnowBall, "flyingsnowball")
+IMPLEMENT_FACTORY(FlyingSnowBall, "flyingsnowball");
+
+/* EOF */
projects / supertux.git / blobdiff