Global gwidth#,gheight#
Global panx#=0,pany#=0,zoom#=1,tzoom#=zoom
Function transformpoly#[](poly#[] , px# , py# , an# , scale# = 1)
'px, py: translate
'an: rotate
'scale: duhhh thicko
Local opoly#[Len(poly)]
can# = Cos(an)
san#=Sin(an)
For n=0 To Len(poly)-1 Step 2
x#=poly[n]*scale
y#=poly[n+1]*scale
opoly[n]=x*Can-y*San+px
opoly[n+1]=x*San+y*Can+py
Next
Return opoly
End Function
Function zoompoly#[](poly#[])
Local opoly#[Len(poly)]
For n=0 To Len(poly)-1 Step 2
opoly[n]=zoomx(poly[n])
opoly[n+1]=zoomy(poly[n+1])
Next
Return opoly
End Function
Function drawrotatedline#(x1# , y1# , x2# , y2# , px# , py# , an# , scale# = 1)
'px,py: translate
'an: rotate
'scale: duhhh thicko
can# = Cos(an)
san# = Sin(an)
nx1#=(x1*can-y1*san)*scale+px
ny1#=(x1*san+y1*can)*scale+py
nx2#=(x2*can-y2*san)*scale+px
ny2#=(x2*san+y2*can)*scale+py
DrawLine nx1,ny1,nx2,ny2
End Function
Function drawoutline(poly#[],thickness=1)
'DrawPoly poly
SetLineWidth thickness
l = Len(poly)
For n=0 To l-3 Step 2
x1#=poly[n]
y1#=poly[n+1]
x2#=poly[(n+2) Mod l]
y2#=poly[(n+3) Mod l]
DrawZoomLine x1,y1,x2,y2
Next
SetLineWidth 1
End Function
Function ZoomX#(x#)
Return (x - panx) * zoom + gwidth / 2
End Function
Function ZoomY#(y#)
Return (y - pany) * zoom + gheight / 2
End Function
Function UnzoomX#(x#)
Return (x - gwidth / 2) / zoom + panx
End Function
Function UnzoomY#(y#)
Return (y - gheight / 2) / zoom + pany
End Function
Function DrawZoomPoly(poly#[],outline=False)
poly=poly[..]
While i < Len(poly)
poly[i] = zoomx(poly[i])
poly[i + 1] = zoomy(poly[i + 1])
i:+ 2
Wend
If outline
ox# = poly[0]
oy# = poly[1]
i = 2
While i < Len(poly)
DrawLine ox , oy , poly[i] , poly[i + 1]
ox = poly[i]
oy=poly[i+1]
i:+ 2
DrawLine poly[0],poly[1],ox,oy
Wend
Else
DrawPoly poly
EndIf
End Function
Function DrawZoomLine(ax# , ay# , bx# , by#)
ax = zoomx(ax)
ay = zoomy(ay)
bx = zoomx(bx)
by = zoomy(by)
DrawLine ax,ay,bx,by
End Function
Function DrawZoomRect(x# , y# , width# , height#,zoomdimensions=1,filled=1)
x = zoomx(x)
y = zoomy(y)
If zoomdimensions
width:* zoom
height:* zoom
EndIf
If filled
DrawRect x , y , width , height
Else
DrawLine x , y , x + width , y
DrawLine x + width , y , x + width , y + height
DrawLine x , y , x , y + height
DrawLine x , y + height , x + width , y + height
EndIf
End Function
Function DrawZoomCircle(x# , y# , radius#)
x = zoomx(x)
y = zoomy(y)
radius:* zoom
DrawOval x - radius , y - radius , 2 * radius , 2 * radius
End Function
Function DrawZoomText(txt$ , x# , y#)
x = ZoomX(x)
y = ZoomY(y)
DrawText txt , x , y
End Function
Function DrawZoomImage(image:TImage , x# , y#,width#,heighto=0)
If heighto
w# = width / ImageHeight(image)
Else
w# = width / ImageWidth(image)
EndIf
SetScale w*zoom , w*zoom
DrawImage image , zoomx(x) , zoomy(y)
SetScale 1,1
End Function
'graphics init
Function initgfx()
Graphics gwidth , gheight
End Function |
