# Angle

## Definition

INT angle = 0

Angle is a predefined local variable which holds the angle (measured in 1/1000 of a degree) at which the graphic of that process (assigned by the local variable graph) will be drawn. It also influences the result of the function advance().

An angle of 0 means to the right, 90000 means up, 180000 means left and 270000 and -90000 mean down.

## Example

To make the graphic of a process spin:

import "mod_grproc"
import "mod_map"
import "mod_wm" // for exit_status
import "mod_key" // for key()

Process Main()
Begin
graph = map_new(100,100,8);  //Create a cyan square and assign it to 'graph'
map_clear(0,graph,rgb(0,255,255));
x = 160;     //Position the graphic's center
y = 100;     //in the center of the screen
Repeat
angle += 1000;    //increase the angle of graphic by 1000 each frame. 1000 = 1 degree.
frame;
Until(key(_ESC) || exit_status)
OnExit
End

Used in example: map_new(), map_clear(), rgb(), map_unload(), key(), exit_status, graph, x, y, angle

This process will spin the cyan square by 1 degree each frame.