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novamax.bas
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BASIC Source File
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1990-08-20
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3KB
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113 lines
'******************************************************************************
'* NOVAMAX - Line drawing and palette demo. *
'* *
'* Written for GRAFIX by: Joseph A. Albrecht *
'* *
'* Press F10 to toggle between 320 and 640 graphic modes *
'* Press ESC to exit program *
'******************************************************************************
'$INCLUDE: 'GRAFQBS.INC'
'The above line is for QuickBASIC.
''$INCLUDE "GRAFTBS.INC"
'The above line is for TURBO BASIC. Remove the '' to compile the program.
''$INCLUDE "GRAFPBS.INC"
'The above line is for PowerBASIC. Remove the '' to compile the program.
DIM Palettes(30)
Graphics = 320
A = Blue
B = Green
C = Cyan
D = Red
MaxX = 319
M = 160
CALL GetTandy11(Tandy11%)
CALL MediumGraphics
Again:
RANDOMIZE TIMER
FOR J = 0 TO MaxX STEP 2
CALL ExtLineC(J, 199, M, 100, A)
GOSUB CheckKey
NEXT J
FOR J = 0 TO MaxX STEP 2
CALL ExtLineC(J, 0, M, 100, B)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 2
CALL ExtLineC(M, 100, MaxX, J, C)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 2
CALL ExtLineC(M, 100, 0, J, D)
GOSUB CheckKey
NEXT J
CALL SetPalette(CINT(RND * 2) + 1, CINT(RND * 15) + 1)
FOR J = 0 TO MaxX STEP 4
CALL ExtLineC(J, 199, M, 100, D)
GOSUB CheckKey
NEXT J
FOR J = 0 TO MaxX STEP 4
CALL ExtLineC(J, 0, M, 100, C)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 4
CALL ExtLineC(M, 100, MaxX, J, B)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 4
CALL ExtLineC(M, 100, 0, J, A)
GOSUB CheckKey
NEXT J
FOR J = 0 TO MaxX STEP 8
CALL ExtLineC(J, 199, M, 100, C)
GOSUB CheckKey
NEXT J
FOR J = 0 TO MaxX STEP 8
CALL ExtLineC(J, 0, M, 100, D)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 8
CALL ExtLineC(M, 100, MaxX, J, A)
GOSUB CheckKey
NEXT J
FOR J = 0 TO 199 STEP 8
CALL ExtLineC(M, 100, 0, J, B)
NEXT J
FOR K = 1 TO 30
Palettes(K) = K MOD 15
GOSUB CheckKey
NEXT K
FOR K = 15 TO 1 STEP -1
CALL PaletteUsing(Palettes(K))
CALL Pause(3)
GOSUB CheckKey
NEXT K
GOTO Again
CheckKey:
K$ = INKEY$
K$ = RIGHT$(K$, 1)
IF K$ = CHR$(27) THEN
CALL ExitGraphics
END
END IF
IF K$ = CHR$(68) AND Tandy11% = Tandy11.True% THEN
IF Graphics = 320 THEN
Graphics = 640
MaxX = 639
M = 320
CALL HighGraphics
RETURN Again
ELSE
Graphics = 320
MaxX = 319
M = 160
CALL MediumGraphics
RETURN Again
END IF
END IF
RETURN