peter_emile_vball

peter_emile_vball1_reflect.py

import vpython as v

xpointer = v.arrow(
    pos = v.vector(0,0,0),
    axis= v.vector(1,0,0),
    shaftwidth = 0.1,
    color=v.color.yellow,
    )
ypointer = v.arrow(
    pos = v.vector(0,0,0),
    axis= v.vector(0,1,0),
    shaftwidth = 0.1,
    color=v.color.purple,
    )
zpointer = v.arrow(
    pos = v.vector(0,0,0),
    axis= v.vector(0,0,1),
    shaftwidth = 0.1,
    color=v.color.blue,
    )

xlabel = v.label(
    pos=xpointer.pos + xpointer.axis, 
    text='x', xoffset=0, yoffset=5,space=1, height=16, border=4
    ) 
ylabel = v.label(
    pos=ypointer.pos + ypointer.axis,
    text='y', xoffset=0, yoffset=5,space=1, height=16, border=4
    )
zlabel = v.label(
    pos=zpointer.pos + zpointer.axis, 
    text='z', xoffset=0, yoffset=5,space=1, height=16, border=4
    )

story = "Es war einmal in \nin einem Universum\nweit weit weg..."


#mytext = v.text(
#    text=story,
#    align='center', 
#    color=v.color.green,
#    pos=v.vector(0,2,0),
#   )


#mybox = v.box()

# define Aquarium
wallR = v.box(
    pos=v.vector(16,0,0), 
    size=v.vector(0.6,12,12), 
    color=v.color.green) 
wallL = v.box(
    pos=v.vector(-16,0,0),
    size=v.vector(0.6,12,12),
    color=v.color.green)
wallH = v.box(
    pos=v.vector(0,6,-6),
    size=v.vector(32,32,0.6), 
    color=v.color.green)
wallV = v.box(
    pos=v.vector(0,6,6), 
    size=v.vector(32,32,0.6), 
    color=v.color.blue,opacity=0.1)
wallO = v.box(
    pos=v.vector(0,40,0),
    size=v.vector(32,0.6,32),
    color=v.vector(0.8,0.3,0.0))
wallU = v.box(
    pos=v.vector(0,-40,0), 
    size=v.vector(32,0.6,32), 
    color=v.vector(0.8,0.3,0.0))
    

myball = v.sphere(
    pos=v.vector(1,1,1),
    color=v.color.red,
    radius = 0.5,
    )


kugel_move = v.vector(v.random()*2-1, v.random()*2-1, v.random()*2-1)

dt = 0.005  # delta t
while True:
    v.rate(200)

    # kugel bewegung 
    myball.pos += kugel_move * dt * 5 # 5x so schnell

    # reflect ball from walls
    # left, right
    if myball.pos.x > wallR.pos.x:
        myball.pos.x = wallR.pos.x
        kugel_move.x *= -1 
    if myball.pos.x < wallL.pos.x:
        myball.pos.x = wallL.pos.x
        kugel_move.x *= -1 
    # up, down
    if myball.pos.y > wallO.pos.y:
        myball.pos.y = wallO.pos.y
        kugel_move.y *= -1 
    if myball.pos.y < wallU.pos.y:
        myball.pos.y = wallU.pos.y
        kugel_move.y *= -1 
    # front, back
    if myball.pos.z > wallV.pos.z:
        myball.pos.z = wallV.pos.z
        kugel_move.z *= -1 
    if myball.pos.z < wallH.pos.z:
        myball.pos.z = wallH.pos.z
        kugel_move.z *= -1