Set the sprite origin point.
Syntax[]
SPHOME id, x, y
| Input | Description |
|---|---|
id
|
Sprite id |
x
|
x-coordinate for sprite origin |
y
|
y-coordinate for sprite origin |
Sets the origin point of the sprite. This is the point that SPOFS controls the location of, as well as the rotation and scaling center point.
Examples[]
'Create sprite SPSET 0,64,2,0,0,0 'Sets origin to (8,8) (middle of the sprite) SPHOME 0,8,8 'Coordinates set the position of the center 'instead of the top left corner of the sprite SPOFS 0,24,24
'Create sprite SPSET 0,96,2,0,0,0 'The home point can be placed beyond the sprite's edge SPHOME 0,0,-24
Notes[]
All arguments are rounded down.
Usable values for x and y are limited to the range of [-128,127]. Values outside of this range are converted to value AND &HFF, with bit 7 as the sign bit.
'Create sprite SPSET 0,96,2,0,0,0 'Set sprite home to furthest possible point SPHOME 0,-128,0 WAIT 60 'The following are equivalent to -128,0 SPHOME 0,128,0 WAIT 60 SPHOME 0,384,0
Errors[]
| Action | Error |
|---|---|
| Zero arguments are passed | Syntax error |
| One or two arguments are passed | Missing operand |
| Four or more arguments are passed | Missing operand |
| A string argument is passed | Type Mismatch |
A value less than zero or greater than 99 is passed for id
|
Out of range |
The sprite id does not exist
|
Illegal function call |
See Also[]
- Sprite overview
SPOFS