an usefull algoritmh to make a line rotate in x,y coordinatian system

var g = setInterval('rotateMe',speed)

function rotateMe()

{ x = |length| Math.cos(t)
y = |length| Math.sin(t)

plot = 'position:absolute; top:y; left:x'

document.getElementById('img').position = plot

t = t+angle of rotation
}

Question

an usefull algoritmh to make a line rotate in x,y coordinatian system

var g = setInterval('rotateMe',speed)

function rotateMe()

{ x = |length| Math.cos(t)
  y = |length| Math.sin(t)

plot = 'position:absolute; top:y; left:x'

document.getElementById('img').position = plot

t = t+angle of rotation
}

anonymous · Answer

attachment

amistre64 · Answer

it can be if utilized appropriately ;)

anonymous · Answer

i did in my cannon game would you like to see the code?

anonymous · Answer

and i made this algorithm better to use :D

anonymous · Answer

I also used the collapsion test in the cannon game that it worked :) and i think its ok now :D

anonymous · Answer

but i didn't draw pics :( i take them from net because drawing pics on pc  is extremeley boring...