How to resolve the algorithm Brownian tree step by step in the Applesoft BASIC programming language

Published on 12 May 2024 09:40 PM
#Applesoft basic

How to resolve the algorithm Brownian tree step by step in the Applesoft BASIC programming language

Table of Contents

Problem Statement

Generate and draw a   Brownian Tree.

A Brownian Tree is generated as a result of an initial seed, followed by the interaction of two processes. Because of the lax rules governing the random nature of the particle's placement and motion, no two resulting trees are really expected to be the same, or even necessarily have the same general shape.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Brownian tree step by step in the Applesoft BASIC programming language

Source code in the applesoft programming language

0GOSUB2:FORQ=0TOTSTEP0:X=A:Y=B:FORO=0TOTSTEP0:XDRAWTATX,Y:X=INT(RND(T)*J)*Z:Y=INT(RND(T)*H):XDRAWTATX,Y:O=PEEK(C)>0:NEXTO:FORP=0TOTSTEP0:A=X:B=Y:R=INT(RND(T)*E):X=X+X(R):Y=Y+Y(R):IFX<0ORX>MORY<0ORY>NTHENNEXTQ
 1  XDRAW T AT X,Y:P =  NOT  PEEK (C): XDRAW T AT A,B: NEXT P: XDRAW T AT X,Y:Q = A = 0 OR A = M OR B = 0 OR B = N: NEXT Q: END
 2 T = 1:Z = 2:E = 8:C = 234
 3 W = 280:A = W / 2:J = A
 4 H = 192:B = H / 2:M = W - 2
 5 N = H - 1:U =  - 1:V =  - 2
 6 Y(0) = U:X(0) = V:Y(1) = U
 7 Y(2) = U:X(2) = 2:X(3) = 2
 8 Y(4) = 1:X(4) = 2:Y(5) = 1
 9 X(6) = V:Y(6) = 1:X(7) = V
 10  POKE 768,1: POKE 769,0
 11  POKE 770,4: POKE 771,0
 12  POKE 772,5: POKE 773,0
 13  POKE 232,0: POKE 233,3
 14  HGR : POKE 49234,0
 15  ROT= 0: SCALE= 1: RETURN

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