73 lines
1.4 KiB
QBasic
73 lines
1.4 KiB
QBasic
' Define the DLI: set background
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' color to $24 = dark red.
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DLI SET d1 = $24 INTO $D01A
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' Setups screen
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GRAPHICS 0
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' Alter the Display List, adds
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' a DLI at line 11 on the screen
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POKE DPEEK(560) + 16, 130
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' Activate DLI
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DLI d1
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' Wait for any keyu
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? "Press a Key" : GET K
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' Disable the DLI
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DLI
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? "Again..."
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GET K
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' An array with color values
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DATA Colors() BYTE = $24,$46,$68
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' Define the DLI: set background
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' color from the Color() array
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' and text color with value $80
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DLI SET d2 = Colors INTO $D01A, $80 INTO $D018
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' Setups screen
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GRAPHICS 0
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' Adds DLI at three lines:
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POKE DPEEK(560) + 13, 130
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POKE DPEEK(560) + 16, 130
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POKE DPEEK(560) + 19, 130
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' Activate DLI
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DLI d2
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' Wait for any keyu
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? "Press a Key" : GET K
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' Disable the DLI
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DLI
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? "Again..."
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GET K
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' Player shapes, positions and colors
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DATA p1() BYTE = $E7,$81,$81,$E7
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DATA p2() BYTE = $18,$3C,$3C,$18
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DATA pos() BYTE = $40,$60,$80,$A0
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DATA c1() BYTE = $28,$88,$C8,$08
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DATA c2() BYTE = $2E,$80,$CE,$06
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' Our DLI writes the position and
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' colors to Player 1 and Player 2
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DLI SET d3 = pos INTO $D000, pos INTO $D001,
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DLI = c1 INTO $D012, c2 INTO $D013
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GRAPHICS 0 : PMGRAPHICS 2
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' Setup our 4 DLI and Players
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FOR I = 8 TO 20 STEP 4
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POKE DPEEK(560) + I, 130
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MOVE ADR(p1), PMADR(0)+I*4+5,4
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MOVE ADR(p2), PMADR(1)+I*4+5,4
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NEXT
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' Activate DLI
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DLI d3
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? "Press a Key"
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REPEAT
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PAUSE 0
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pos(0) = pos(0) + 2
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pos(1) = pos(1) + 1
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pos(2) = pos(2) - 1
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pos(3) = pos(3) - 2
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UNTIL KEY()
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DLI
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? "Key to end..."
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GET K
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