Commodore 128D - Page 121

Using Sprite Statements in a Program
This method uses built-in statements so you don't have to use any
aids outside your program to design your sprite, as the other two
methods require. This method uses some of the graphics statements
you learned in the previous section. Here's the general procedure.
The details will be added as you progress.
1. Draw a picture with the graphics statements you learned in
the last section, such as DRAW, CIRCLE, BOX and PAINT.
Make the dimensions of the picture 24 pixels wide by 21 pix
els tall in standard bit map mode or 12 pixels wide by 21 tall in
multicolor bit map mode.
2. Use the SSHAPE statement to store the picture data into a
string variable. <
3. Transfer the picture data from the string variable into a sprite
with the SPRSAV statement.
4. Turn on the sprite, color it, select either standard or multi
color mode and expand it, all with the SPRITE statement.
5. Move the sprite with the MOVSPR statement.
Drawing the Sprite Image
Here are the actual statements that perform the sprite operations.
When you are finished with this section, you will have written your
first sprite program. You'll be able to RUN the program as much as
you like, and SAVE it for future reference.
The first step is to draw a picture (24 by 21 pixels) on the screen
using DRAW, CIRCLE, BOX or PAINT. This example is performed in
standard bit map mode, using a black background. Here's the state
ments that set the graphic mode and color the screen background
black.
5 COLOR 0,1 :REM COLOR BACKGROUND BLACK
10 GRAPHIC 1,1 :REM SET STND BIT MAP MODE
The following statements DRAW a picture of a racing car in the
upper-left corner of the screen. You already learned these state
ments in the last section.
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USING C128 MODE—Color, Animation and Sprite Graphics Statements