roboball2d.ball_gun package

Submodules

roboball2d.ball_gun.default_ball_gun module

class roboball2d.ball_gun.default_ball_gun.DefaultBallGun(ball_config)

Bases: object

A ball gun provides, via its method ‘shoot’, an initial ball position (x,y), angle (radian), linear velocity (vx,vy) and angular velocity (or spin). Users can use an instance of DefaultBallGun, as documented here, or create new ball guns objects (which just need to implement a ‘shoot’ method).

DefaultBallGun initialize balls by sampling normal distribution to determine the balls initial positions and velocities. User code may change the values of the attributes after construction to match his/her need

initial_pos_x : float

in meters

initial_height_mean : float

in meters

initial_height_std : float

in meters

speed_mean : float

in meters per second

speed_std : float

in meters per second

spin_std : float

in radians per second

vel_angle_min : float

in radians per second

vel_angle_max : float

in radians per second

Creates an instance of ball gun setting default values to all attributes.

ball_config : roboball2d.ball.BallConfig

used to set the radius of the ball that will be shot

__init__(ball_config)

Creates an instance of ball gun setting default values to all attributes.

ball_config : roboball2d.ball.BallConfig

used to set the radius of the ball that will be shot

initial_height_mean

initial_height_std

initial_pos_x

shoot()

a list: position (x,y),angle (radian),

linear_velocity (vx,vy), angular_velocity (or spin, radian per second). These values are created by sampling the normal distributions.

speed_mean

speed_std

spin_std

vel_angle_max

vel_angle_min

roboball2d.ball_gun.drop_ball_gun module

class roboball2d.ball_gun.drop_ball_gun.DropBallGun(x, y)

Bases: object

Drops a ball, with zero initial velocities, from a desired position. See :py:method:`roboball2d.physics.b2_world.B2World.reset`

x : float

horizontal position

y : float

vertical position

x : float

horizontal position from which the ball will be droped

y : float

vertical position from which the ball will be droped

__init__(x, y)

x : float

horizontal position from which the ball will be droped

y : float

vertical position from which the ball will be droped

shoot()

a list: position (x,y),angle (radian),

linear_velocity (vx,vy), angular_velocity (or spin, radian per second). The angle and the velocities will be zeros

Module contents