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Prolog Source | 1986-10-07 | 696 b | 27 lines |
- /* Program 37 */
- /*
- NOTE: all graphics programs are in white on a
- black(blue) background. If you don't like this
- combination it can easily be changed. You can
- change the parameters to the 'graphics'
- predicate, or you can change the drawing
- color. Read page 92 and try some combinations
- of parameters. For example: graphics(1,5,17)
- on a CGA will give you pink letters and a
- white line on a blue background. Other systems
- give different colors. Just explore.
- */
-
- predicates
- inspiral(integer)
-
- goal
- graphics(1,1,0),
- pencolor(7),
- inspiral(70).
-
- clauses
- inspiral(X):-
- X < 340, !, forward(5000),right(X),Y=X+1,inspiral(Y).
-