basic rotation

Rotation is tough. It's Pythagoras' fault
There is no automatic solution possible for a low-res low-color screen.
Best is to use a PC graphic editor (like PSP) and edit each step by hand.

For Project Banshee we rotated a 16x16 sprite in 32 steps in Deluxepaint (on amiga ^^ and then edited the results in AGE.

Rotation is not something you will want to do in real-time.

However:

10 SCREEN 5 : CLS : DEFINT A-Z : DEFSNG R
20 FOR I = 0 TO 15 : LINE ( I , I ) - ( 15-I , 15-I ) , 15-I , B : NEXT I
30 FOR D = 0 TO 359 ' Rotate 360 degrees
40 RZ = D * (4 * ATN (-1) ) / 180 ' Convert degrees to radians
50 RS = SIN (RZ): RC = COS (RZ)
60 FOR Y = 0 TO 15 : FOR X = 0 TO 15
70 X1 = X * RC - Y * RS
80 Y1 = X * RS + Y * RC
90 PSET (50+X1,50+Y1) , POINT ( X , Y )
100 NEXT X,Y
110 NEXT D

Still, without manual anti-aliasing it looks like shite.

I think a different sprite for every position would be a better option than doing it realtime...

K.

GuyveR800 i thank you.
I olmost gona love you!!!!

thank you,