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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Fractal-tree/PureBasic/fractal-tree.basic Normal file
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#Spread_Ang = 35
#Scaling_Factor = 0.75
#Deg_to_Rad = #PI / 180
#SizeH = 500
#SizeV = 375
#Init_Size = 100
Procedure drawTree(x1, y1, Size, theta, depth)
Protected x2 = x1 + Cos(theta * #Deg_to_Rad) * Size, y2 = y1 + Sin(theta * #Deg_to_Rad) * Size
LineXY(x1, y1, x2, y2, RGB(255, 255, 255))
If depth <= 0
ProcedureReturn
EndIf
;draw left branch
drawTree(x2, y2, Size * #Scaling_Factor, theta - #Spread_Ang, depth - 1)
;draw right branch
drawTree(x2, y2, Size * #Scaling_Factor, theta + #Spread_Ang, depth - 1)
EndProcedure
OpenWindow(0, 0, 0, #SizeH, #SizeV, "Fractal Tree", #PB_Window_SystemMenu)
Define fractal = CreateImage(#PB_Any, #SizeH, #SizeV, 32)
ImageGadget(0, 0, 0, 0, 0, ImageID(fractal))
If StartDrawing(ImageOutput(fractal))
drawTree(#SizeH / 2, #SizeV, #Init_Size, -90, 9)
StopDrawing()
SetGadgetState(0, ImageID(fractal))
EndIf
Repeat: Until WaitWindowEvent(10) = #PB_Event_CloseWindow