Make Trees

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SoCoder -> Snippet Home -> Graphical Effects

Jayenkai	Created : 07 May 2016 Edited : 07 May 2016 Language : Blitz Max Make Trees A lovely little tree-sprite generator
This morning I posted a screengrab of my little abandoned town rpg thing. It turned out that a single week was nowhere near enough time to do a complete Pokemon thing, but over on Facebook, WarOffice said that the trees look nice. And, indeed, I'm quite proud at how well they turned out. I've spent the past couple of hours recreating the Tree Generator I used, in an effort to make it a bit more presentable. Hopefully it's good enough for you to make use of! Downloadable EXE with .bmx Sourcecode .zip file, nice and small. BlitzMax Sourcecode (Runs happily from a copy+paste) ' Tree Sprite Generator ' Created by Jayenkai ' May 7th 2016 Global ScreenWidth=1024 Global ScreenHeight=512 Global TreeSize#=64 ' Sprite size Global ForceSeason=-1 ' 0 = Spring ' 1 = Summer ' 2 = Autumn ' 3 = Winter ' Anything else (-1) for random seasons per tree Global TreeStyle=-1 ' 0 = Square trees ' 1 = Rounded trees ' 2 = Triangular trees ' Anything else (-1) for randomly shaped trees Global LeafThin=-1 ' 0 = Tiny leaves ' --vv-- ' 4 = Chunky leaves ' Anything else (-1) for a random selection Global LeafStyle=-1 ' 0 = Circular leaves ' 1 = Oval leaves ' 2 = Angled Oval leaves ' Anything else (-1) for a random selection Graphics ScreenWidth,ScreenHeight,0 SeedRnd MilliSecs();For r=0 To 100;k=Rnd(0,10);Next Cls SetColor(255,0,255) DrawRect(0,0,ScreenWidth,ScreenHeight) For treeX=0 To ScreenWidth/TreeSize For treeY=0 To ScreenHeight/TreeSize dx=treeXTreeSize dy=treeYTreeSize cx=(treeXTreeSize)+(TreeSize/2) cy=(treeYTreeSize)+(TreeSize/2) SetViewport dx,dy,TreeSize,TreeSize ' Trunk and Stump SetColor(Rnd(60,80),Rnd(30,50),0) ' Trunk ' Size ThinTrunk=Float(TreeSize)0.05 ThickTrunk=Float(TreeSize)0.1 If ThinTrunk<3 Then ThinTrunk=3 If ThickTrunk<ThinTrunk+2 Then ThickTrunk=ThinTrunk+2 thick=Rand(ThinTrunk,ThickTrunk) DrawRect(cx-thick,cy,thick2,((TreeSize/2)-4)) ' Stumpy bits Splots=16 If TreeSize>64 Then Splots=20 If TreeSize>96 Then Splots=24 For n=0 To Splots w=Rand(ThinTrunk,ThickTrunk) DrawOval((cx+Rand(-n/2,n/2))-w,((cy+(TreeSize/2))-(4+Splots))+(n),w2,Rand(ThinTrunk,ThickTrunk)) Next ' Leaves LeafSize=LeafThin If LeafThin<0 Or LeafThin>4 Then LeafSize=Rand(0,4) LeafBig=(TreeSize/80.0)Float(LeafSize+1) LeafLittle=(TreeSize/120.0)Float(LeafSize+1) Bushy=Rand((TreeSize/4),(TreeSize/2)-LeafBig) Shape=Rand(0,2) If TreeStyle>-1 And TreeStyle<3 Then Shape=TreeStyle AngleThese=LeafStyle If LeafStyle>-1 Or LeafStyle<3 Then AngleThese=AngleLeaves Darker=Rand(-50,50) Season=Rand(0,3) If ForceSeason>-1 And ForceSeason<4 Then Season=ForceSeason For LeafLayer=1 To 3 LayerY=(((4-LeafLayer)(TreeSize0.2)))+4 deep=TreeSize/16.0 If deep<2 Then deep=2 LayerY=LayerY+Rand(-deep,deep) If LayerY<8 Then LayerY=8 If LayerY>(TreeSize0.75) Then LayerY=(TreeSize0.75) LayerY=LayerY leaves=bushy10 For Leaf=0 To leaves ' Color of Leaf shade=Rand(-3,4)8 Select Season Case 2 ' Autumn r=(LeafLayer70)+Shade g=(LeafLayer40)+Shade b=(LeafLayer20)+Shade Case 3 ' Winter r=(LeafLayer70)+Shade g=(LeafLayer60)+Shade b=(LeafLayer50)+Shade If Rand(0,5)<3 r=(LeafLayer70)+Shade g=(LeafLayer70)+Shade b=(LeafLayer70)+Shade EndIf Case 1 ' Summer r=(LeafLayer10)+Shade g=(LeafLayer70)+Shade b=(LeafLayer10)+Shade Default ' Standard r=(LeafLayer30)+Shade g=(LeafLayer70)+Shade b=(LeafLayer30)+Shade End Select r=r+Darker g=g+Darker b=b+Darker If r<0 Then r=0 If r>255 Then r=255 If g<0 Then g=0 If g>255 Then g=255 If b<0 Then b=0 If b>255 Then b=255 SetColor(r,g,b) ' Position of Leaf If LeafLittle<1 Then LeafLittle=1;LeafBig=2 LeafW#=(Rnd(LeafLittle,LeafBig)) LeafH#=(Rnd(LeafLittle,LeafBig)) If AngleThese=0 Then LeafH=LeafW If AngleThese=2 LeafW#=(Rnd(LeafLittle,LeafBig))0.75 LeafH#=(Rnd(LeafLittle,LeafBig))1.25 EndIf LeafX#=(Rand(-Bushy,Bushy)) LeafY#=(LayerY+Rand(-Bushy0.5,Bushy0.5)) Select Shape Case 0 ' Square - Maybe use this to round off the edges so they aren't "too" square..? Can't be arsed doing that.. Case 1 ' Rounded - A ball of leaves! LeafMidPoint=(TreeSize0.45) Angle#=ATan2(LeafX,LeafMidpoint-LeafY) Dist#=Sqr(((LeafX)(LeafX))+((LeafY-LeafMidpoint)(LeafY-LeafMidpoint))) If Dist>bushy Then Dist=bushy LeafX=(Sin(Angle)Dist) LeafY=LeafMidpoint-(Cos(Angle)Dist) Case 2 ' Triangular - Thinner at the top WideAllow=(Float(LeafY)/Float(Float(Bushy)2.5))Float(Bushy1) If WideAllow<2 Then WideAllow=2 If WideAllow>Bushy Then WideAllow=Bushy LeafX=Rand(-WideAllow,WideAllow) End Select ' Draw the leaf If AngleThese=2 Then SetRotation(Rand(-25,25)) DrawOval((cx+LeafX)-LeafW,(dy+LeafY)-LeafH,LeafW2,LeafH*2) Next Next SetRotation(0) SetViewport 0,0,512,512 Flip Next Next outimg:TPixmap=GrabPixmap(0,0,ScreenWidth,ScreenHeight) For x=0 To ScreenWidth-1 For y=0 To ScreenHeight-1 argb=ReadPixel(outimg,x,y) If (argb & $00FFFFFF)=$00FF00FF Then argb=$00000000 WritePixel(outimg,x,y,argb) Next Next SavePixmapPNG(outimg,"Trees.png") --v Average Results

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Tuesday, 10 May 2016, 16:11
HoboBen	So cool!

Downloadable EXE with .bmx Sourcecode

BlitzMax Sourcecode

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