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28 lines
639 B
Lua
28 lines
639 B
Lua
%target cx16
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%import cx16textio
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%zeropage basicsafe
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; TODO this code is identical to the c64 one except the import
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main {
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const uword screenwidth = txt.DEFAULT_WIDTH
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const uword screenheight = txt.DEFAULT_HEIGHT
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struct Ball {
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uword anglex
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uword angley
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ubyte color
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}
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sub start() {
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Ball ball
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repeat {
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ubyte x = msb(sin8u(msb(ball.anglex)) * screenwidth)
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ubyte y = msb(cos8u(msb(ball.angley)) * screenheight)
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txt.setcc(x, y, 81, ball.color)
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ball.anglex+=366
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ball.angley+=291
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ball.color++
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}
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}
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}
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