mirror of
https://github.com/QB64Official/qb64.git
synced 2024-07-16 20:05:14 +00:00
52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
|
The [_AXIS](_AXIS) function returns the relative position of a specified axis number on a controller device.
|
||
|
|
|
||
|
|
## Syntax
|
||
|
|
|
||
|
|
> move! = [_AXIS](_AXIS)(axis_number%)
|
||
|
|
|
||
|
|
* [SINGLE](SINGLE) values returned range between -1 and 1 as maximums and 0 indicating minimum or axis center.
|
||
|
|
* When the mouse is moved on the program screen, moves left or above center are negative while below or right are positive.
|
||
|
|
* The *axis_number* must be a number which does not exceed the number of axis found by the [_LASTAXIS](_LASTAXIS) function.
|
||
|
|
* **The number of [_DEVICES](_DEVICES) must be read before using [_DEVICE$](_DEVICE$), [_DEVICEINPUT](_DEVICEINPUT) or [_LASTAXIS](_LASTAXIS).**
|
||
|
|
|
||
|
|
## Example(s)
|
||
|
|
|
||
|
|
Reading multiple controller device buttons, axis and wheels.
|
||
|
|
|
||
|
|
```vb
|
||
|
|
|
||
|
|
FOR i = 1 TO _DEVICES
|
||
|
|
PRINT STR$(i) + ") " + _DEVICE$(i) + " Buttons:"; _LASTBUTTON(i); ",Axis:"; _LASTAXIS(i); ",Wheel:"; _LASTWHEEL(i)
|
||
|
|
NEXT
|
||
|
|
|
||
|
|
DO
|
||
|
|
d& = _DEVICEINPUT
|
||
|
|
IF d& THEN ' the device number cannot be zero!
|
||
|
|
PRINT "Found"; d&;
|
||
|
|
FOR b = 1 TO _LASTBUTTON(d&)
|
||
|
|
PRINT _BUTTONCHANGE(b); _BUTTON(b);
|
||
|
|
NEXT
|
||
|
|
FOR a = 1 TO _LASTAXIS(d&)
|
||
|
|
PRINT _AXIS(a);
|
||
|
|
NEXT
|
||
|
|
FOR w = 1 TO _LASTWHEEL(d&)
|
||
|
|
PRINT _WHEEL(w);
|
||
|
|
NEXT
|
||
|
|
PRINT
|
||
|
|
END IF
|
||
|
|
LOOP UNTIL INKEY$ = CHR$(27) 'escape key exit
|
||
|
|
|
||
|
|
END
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
> *Note:* When there is no device control to read, a [FOR...NEXT](FOR...NEXT) n = 1 TO 0 loop will not run thus avoiding a control function read error.
|
||
|
|
|
||
|
|
## See Also
|
||
|
|
|
||
|
|
* [_LASTWHEEL](_LASTWHEEL), [_LASTBUTTON](_LASTBUTTON), [_LASTAXIS](_LASTAXIS)
|
||
|
|
* [_WHEEL](_WHEEL), [_BUTTON](_BUTTON), [_BUTTONCHANGE](_BUTTONCHANGE)
|
||
|
|
* [_DEVICE$](_DEVICE$), [_DEVICES](_DEVICES)
|
||
|
|
* [_MOUSEMOVEMENTX](_MOUSEMOVEMENTX), [_MOUSEMOVEMENTY](_MOUSEMOVEMENTY) (relative movement)
|
||
|
|
* [Controller Devices](Controller-Devices)
|