Commodore 128D - Page 124

X — lfX=1, expands sprite in horizontal (X)direction
If X = 0, sprite is normal horizontal size
Y — If Y = 1, expand sprite in vertical (Y) direction
If y = 0, sprite is normal vertical size
M —If M = 1, sprite is multicolor
If M = 0, sprite is standard
As you can see, the SPRITE statement is powerful, giving you control
over many sprite qualities.
Moving Sprites with MOVSPR
Now that your sprite is on the screen, all you have to do is move it.
The MOVSPR statement controls the motion of a sprite and allows
you to animate it on the screen. The MOVSPR statement can be used
in two ways. First, the MOVSPR statement can place a sprite at an
absolute location on the screen, using vertical and horizontal coordi
nates. Add the following statements to your program:
70 MOVSPR 1,240,70:REM POSITION SPRITE 1-X = 240, Y = 70
80 MOVSPR 2,120,70:REM POSITION SPRITE 2—X = 120, Y = 70
Line 70 positions sprite 1 at sprite coordinate 240,70. Line 80 places
sprite 2 at sprite coordinate 120,70. You can also use the MOVSPR
statement to move sprites relative to their original positions. For
example, place sprites 1 and 2 at the coordinates as in lines 70 and
80. You want to move them from their original locations to another
location on the screen. Use the following statements to move sprites
along a specific route on the screen:
80 MOVSPR,1,180 # 6:REM MOVE SPRITE 1 FROM THE TOP
TO THE BOTTOM Li
87 MOVSPR 2,180 # 7:REM MOVE SPRITE 2 FROM THE TOP
TO THE BOTTOM
The first number in this statement is the sprite number. The second {—'
number is the direction expressed as the number of degrees to move
in the clockwise direction, relative to the original position of the
sprite. The pound sign (#) signifies that the sprite is moved at the
specified angle and speed relative to a starting position, instead of
an absolute location, as in lines 70 and 80. The final number speci
fies the speed in which the sprite moves along its route on the
screen, which ranges from 0 through 15.
The MOVSPR command has two alternative forms. See Chapter V,
BASIC 7.0 Encyclopedia for these notations.
116 USING C128 MODE—Color, Animation and Sprite Graphics Statements