Updates the velocities of this particle and the specified particle according to the laws of elastic collision. Assumes that the particles are colliding at this instant.

Updates the velocity of this particle upon collision with a horizontal wall (by reflecting the velocity in the Y-direction). Assumes that the particle is colliding with a horizontal wall at this instant.

Updates the velocity of this particle upon collision with a vertical wall (by reflecting the velocity in the X-direction). Assumes that the particle is colliding with a vertical wall at this instant.

Draws the particle as a filled circle

Returns the kinetic energy of this particle. The kinetic energy is given by the formula 1/2 MV², where M is the Mass of this particle and V is its velocity.

Moves this particle in a straight line (based on its velocity) for the specified amount of time.

Returns the amount of time for this particle to collide with the specified particle, assuming no interening collisions.

Returns the amount of time for this particle to collide with a horizontal wall, assuming no interening collisions.

Returns the amount of time for this particle to collide with a vertical wall, assuming no interening collisions.

Returns useful particle info for debugging