FlyingSnowBall Class Reference

#include <flyingsnowball.hpp>

Inherits BadGuy.

List of all members.

Public Member Functions
	FlyingSnowBall (const Reader &reader)
	FlyingSnowBall (const Vector &pos)
void	initialize ()
	called immediately before the first call to initialize
void	activate ()
	called when the badguy has been activated.
void	active_update (float elapsed_time)
	called each frame when the badguy is activated.
void	collision_solid (const CollisionHit &hit)
	Called when the badguy collided with solid ground.
Protected Member Functions
bool	collision_squished (GameObject &object)
	Called when the player hit the badguy from above.
Private Attributes
float	normal_propeller_speed
Timer	puff_timer
	time until the next smoke puff is spawned

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Detailed Description

Definition at line 22 of file flyingsnowball.hpp.

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Constructor & Destructor Documentation

FlyingSnowBall::FlyingSnowBall

(

const Reader &

reader

)

Definition at line 30 of file flyingsnowball.cpp.

References Physic::enable_gravity(), and BadGuy::physic.

                                                   :
  BadGuy(reader, "images/creatures/flying_snowball/flying_snowball.sprite"),
  normal_propeller_speed(),
  puff_timer()
{
  physic.enable_gravity(true);
}

FlyingSnowBall::FlyingSnowBall

(

const Vector &

pos

)

Definition at line 38 of file flyingsnowball.cpp.

References Physic::enable_gravity(), and BadGuy::physic.

                                                :
  BadGuy(pos, "images/creatures/flying_snowball/flying_snowball.sprite"),
  normal_propeller_speed(),
  puff_timer()
{
  physic.enable_gravity(true);
}

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Member Function Documentation

void FlyingSnowBall::initialize

(

)

[virtual]

called immediately before the first call to initialize

Reimplemented from BadGuy.

Definition at line 47 of file flyingsnowball.cpp.

References BadGuy::dir, LEFT, and MovingSprite::sprite.

{
  sprite->set_action(dir == LEFT ? "left" : "right");
}

void FlyingSnowBall::activate

(

)

[virtual]

called when the badguy has been activated.

(As a side effect the dir variable might have been changed so that it faces towards the player.

Reimplemented from BadGuy.

Definition at line 53 of file flyingsnowball.cpp.

References gameRandom, normal_propeller_speed, PUFF_INTERVAL_MAX, PUFF_INTERVAL_MIN, puff_timer, RandomGenerator::randf(), and Timer::start().

{
  puff_timer.start(gameRandom.randf(PUFF_INTERVAL_MIN, PUFF_INTERVAL_MAX));
  normal_propeller_speed = gameRandom.randf(0.95, 1.05);
}

void FlyingSnowBall::active_update

(

float

elapsed_time

)

[virtual]

called each frame when the badguy is activated.

Reimplemented from BadGuy.

Definition at line 78 of file flyingsnowball.cpp.

References Sector::add_object(), ANCHOR_MIDDLE, MovingObject::bbox, Timer::check(), Sector::current(), BadGuy::dir, gameRandom, Sector::get_gravity(), Rectf::get_middle(), Physic::get_movement(), BadGuy::get_nearest_player(), MovingObject::get_pos(), Physic::get_velocity_y(), LAYER_OBJECTS, LEFT, MovingObject::movement, normal_propeller_speed, BadGuy::physic, PUFF_INTERVAL_MAX, PUFF_INTERVAL_MIN, puff_timer, RandomGenerator::randf(), RIGHT, Physic::set_acceleration_y(), Physic::set_velocity_y(), MovingSprite::sprite, Timer::start(), BadGuy::start_position, Vector::x, and Vector::y.

{

  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);

  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(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(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);
  }
}

void FlyingSnowBall::collision_solid

(

const CollisionHit &

hit

)

[virtual]

Called when the badguy collided with solid ground.

Reimplemented from BadGuy.

Definition at line 70 of file flyingsnowball.cpp.

References CollisionHit::bottom, BadGuy::physic, Physic::set_velocity_y(), and CollisionHit::top.

{
  if(hit.top || hit.bottom) {
    physic.set_velocity_y(0);
  }
}

bool FlyingSnowBall::collision_squished

(

GameObject &

object

)

[protected, virtual]

Called when the player hit the badguy from above.

You should return true if the badguy was squished, false if squishing wasn't possible

Reimplemented from BadGuy.

Definition at line 60 of file flyingsnowball.cpp.

References BadGuy::dir, BadGuy::kill_squished(), LEFT, BadGuy::physic, Physic::set_acceleration_y(), Physic::set_velocity_y(), and MovingSprite::sprite.

{
  sprite->set_action(dir == LEFT ? "squished-left" : "squished-right");
  physic.set_acceleration_y(0);
  physic.set_velocity_y(0);
  kill_squished(object);
  return true;
}

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Member Data Documentation

float FlyingSnowBall::normal_propeller_speed [private]

Definition at line 36 of file flyingsnowball.hpp.

Referenced by activate(), and active_update().

Timer FlyingSnowBall::puff_timer [private]

time until the next smoke puff is spawned

Definition at line 37 of file flyingsnowball.hpp.

Referenced by activate(), and active_update().

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The documentation for this class was generated from the following files:

• src/badguy/flyingsnowball.hpp
• src/badguy/flyingsnowball.cpp

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