Commodore 64 Uživatelský manuál stáhnout pdf (Strana 72)

LINE 25:

FORS2 =12352

TO 12414

READQ2

POKES2,Q2

LINE

30:

FORS3= 12416

TO 12478

READQ3

POKES3,Q3

LINE 35:

POKEV+39,15

POKEV+ 1,68

The second shape of sprite zero is defined by the

DATA which is located at locations 12352 to

12414. NOTE that location 12351 is SKIPPED. . .

this is the 64th location which is used in the

definition of the first sprite group but does not

contain any of the sprite data numbers. Just re-

member when defining sprites in consecutive lo-

cations that you will use 64 locations, but only

POKE sprite data into the first 63 locations.

Reads the 63 numbers which follow the numbers

we used for the first sprite shape. This READsim-

ply looks for the very next number in the DATA

area and starts reading 63 numbers, one at a

time.

Pokes the data (Q2) into the memory locations

(52) for our second sprite shape, which begins at

location 12352.

Same use as line 20 above.

The third shape of sprite zero is defined by the

DATAto be located at locations 12416 to 12478.

Reads last 63 numbers in order as Q3.

Pokes those numbers into locations 12416 to

12478.

Same as lines 20 and 25.

Sets color for sprite 0 to light grey.

Sets the upper right hand corner of the sprite

square to vertical (Y) position 68. For the sake of

comparison, position 50 is the top lefthand corner

Y position on the viewing screen.

170 PROGRAMMING GRAPHICS

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 82 83

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