acrog2

no

centerX = center of the "circle" where the other circles are drawn around
example values: x, 200, 700, room_width/2

centerY = same for the Y
example values: y, 200, room_height/2

radius = how far from the centerX/Y the circles are draw
example values: 200, room_width/4

angle  = don't mess with this, its used in the for loop. it is the position around the "circle", and tells where the other circles

r = the radius of the circles to be drawn. Different from radius.
example values: 5, 10, 200

xx = calculated x value for the circle to be drawn

yy = calculated y value for the circle to be drawn

outline = whether or not to draw the circle filled or empty
example values: true, false, 0, 1

for (angle=0; angle<360; angle+=step) //loop through all 360 degrees, drawing a circle every [i]step[/i] degrees
{
    xx = centerX + lengthdir_x(radius,angle); //compute the x value for the circle to be drawn
    yy = centerY + lengthdir_y(radius,angle); //compute the y value
    draw_circle(xx,yy,r,outline); //draw the circle
}

hope that helps clear some things up
-acrog2

point_distance(x,y,px,py)- point_distance(xprevious, yprevious,px,py)

-acrog2

But remember that that only works when the planet is stationary (does not move).

Yeah, there was a reason why I suggested to do two the same measurements in thwo step-events (before and after the player and the planet where moved) and than subtract one from the other

point_distance(x,y,obj.x,obj.y)- point_distance(xprevious,yprevoius, obj.xprevious, obj.yprevious)

you can use these functions:

The following functions deal with the clipboard for storing text.


clipboard_has_text() Returns whether there is any text on the clipboard.
clipboard_get_text() Returns the current text on the clipboard.
clipboard_set_text(str) Sets the string str on the clipboard.

-acrog2

yes. It is most definitely possible.