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' SFX Generator
'
' Copyright (C) 2006 Ian Cowburn (ianc@noddybox.co.uk)
'
' This program is free software; you can redistribute it and/or modify
' it under the terms of the GNU General Public License as published by
' the Free Software Foundation; either version 2 of the License, or
' (at your option) any later version.
'
' This program is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY; without even the implied warranty of
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
' GNU General Public License for more details.
'
' You should have received a copy of the GNU General Public License
' along with this program; if not, write to the Free Software
' Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'
' -------------------------------------------------------------------------
'
' $Id$
'
SuperStrict
Import noddybox.mwidget
Import noddybox.algorithm
Import brl.audio
Import brl.audiosample
Const MAGIC:String="SFXV0001"
Type TPoint
Field x:Int
Field y:Int
Function Create:TPoint(x:Int, y:Int)
Local o:TPoint=New TPoint
o.x=x
o.y=y
Return o
End Function
Method Draw(drag:Int)
If drag
SetColor(255,255,0)
Else
SetColor(220,220,220)
EndIf
DrawRect(x-2,y-2,5,5)
End Method
Method InRange:Int(mx:Int, my:Int)
Return Abs(mx-x)<3 And Abs(my-y)<3
End Method
Method ToStream(s:TStream)
WriteInt(s,x)
WriteInt(s,y)
End Method
Function FromStream:TPoint(s:TStream)
Local x:Int=ReadInt(s)
Local y:Int=ReadInt(s)
Return Create(x,y)
End Function
End Type
Type TPointList
Field arr:Object[]
Field link:TLink
Field x:Int
Field p:Int
Field cur:TList
Field depth:Int
Function Create:TPointList(l:TList, depth:Int)
Local o:TPointList=New TPointList
o.arr=l.ToArray()
o.depth=depth-1
o.Reset()
Return o
End Function
Method NextLine()
p:+1
If p=arr.length
Return
EndIf
Local p1:TPoint=TPoint(arr[p-1])
Local p2:TPoint=TPoint(arr[p])
cur=DoLine(p1.x,p1.y,p2.x,p2.y)
End Method
Method AtEnd:Int()
Return p=arr.length
End Method
Method Point:Double()
Local p:TAlgoPoint=TAlgoPoint(cur.RemoveFirst())
If Not cur.Count()
NextLine()
EndIf
Return Double(depth-p.y)/depth
End Method
Method Reset()
x=0
p=0
NextLine()
End Method
End Type
Type EnvelopeControl Extends TMCanvas
Field points:TList
Field drag:TPoint
Field pleft:TPoint
Field pright:TPoint
Field mx:Int
Field my:Int
Method New()
points=CreateList()
drag=Null
pleft=Null
pright=Null
End Method
Function Init:TMCanvas(x:Int, y:Int, w:Int, h:Int, p:TMWidget)
Local o:TMCanvas=New EnvelopeControl.Create(x,y,w,h,p)
Return o
End Function
Method Clear()
points.Clear()
points.AddLast(TPoint.Create(0,Height()/2))
points.AddLast(TPoint.Create(Width()-1,Height()/2))
End Method
Method ToStream(s:TStream)
WriteInt(s,points.Count())
For Local p:TPoint=EachIn points
p.ToStream(s)
Next
End Method
Method FromStream(s:TStream)
Local c:Int=ReadInt(s)
points.Clear()
For Local f:Int=1 To c
points.AddLast(TPoint.FromStream(s))
Next
Draw()
End Method
Method LocatePoint()
pleft=Null
Local l:TLink=points.FirstLink()
While l
Local p:TPoint=TPoint(l.Value())
If p.InRange(mx,my)
drag=p
l=l.NextLink()
If l
pright=TPoint(l.Value())
EndIf
Return
End If
If p.x>mx
drag=TPoint.Create(mx,my)
pright=p
points.InsertBeforeLink(drag,l)
Return
EndIf
pleft=p
l=l.NextLink()
Wend
drag=Null
pleft=Null
pright=Null
End Method
Method Draw()
SetupGraphics()
Cls()
Local prev:TPoint=Null
SetColor(180,180,180)
For Local p:TPoint=EachIn points
If prev
DrawLine(prev.x,prev.y,p.x,p.y)
EndIf
prev=p
Next
For Local p:TPoint=EachIn points
p.Draw(p=drag)
Next
Flip
End Method
Method OnRedraw()
Draw()
End Method
Method OnMouseEnter()
SetPointer(POINTER_CROSS)
End Method
Method OnMouseLeave()
SetPointer(POINTER_DEFAULT)
End Method
Method OnButtonDown(b:Int)
If Not drag
LocatePoint()
Draw()
EndIf
End Method
Method OnButtonUp(b:Int)
If drag
If pleft And pleft.InRange(drag.x,drag.y)
points.Remove(drag)
ElseIf pright And pright.InRange(drag.x,drag.y)
points.Remove(drag)
End If
drag=Null
pleft=Null
pright=Null
Draw()
EndIf
End Method
Method OnMouseMove(x:Int, y:Int)
mx=x
my=y
If drag
If pleft And pright
drag.x=Max(pleft.x,Min(pright.x,mx))
ElseIf pleft
drag.x=Width()-1
Else
drag.x=0
EndIf
drag.y=Max(0,Min(Height()-1,my))
Draw()
EndIf
End Method
Method OnMouseWheel(b:Int)
End Method
Method OnKeyDown(b:Int)
End Method
Method OnKeyUp(b:Int)
End Method
Method OnKey(b:Int)
End Method
Method GetPointList:TPointList()
Return TPointList.Create(points,Height())
End Method
End Type
Type WaveControl Extends EnvelopeControl
Const EMPTY:Int=0
Const SINE:Int=1
Const SQUARE:Int=2
Const SAW:Int=3
Const TRIANGLE:Int=4
Const NOISE:Int=5
Method SetWave(t:Int)
Select t
Case EMPTY
Clear()
Case SINE
points.Clear()
For Local x:Int=0 Until Width()
points.AddLast(TPoint.Create(x,Height()/2+Sin(x)*((Height()-5)/2)))
Next
Case SQUARE
points.Clear()
points.AddLast(TPoint.Create(0,0))
points.AddLast(TPoint.Create(Width()/2,0))
points.AddLast(TPoint.Create(Width()/2,Height()-1))
points.AddLast(TPoint.Create(Width()-1,Height()-1))
Case SAW
points.Clear()
points.AddLast(TPoint.Create(0,Height()-1))
points.AddLast(TPoint.Create(Width()-1,0))
Case TRIANGLE
points.Clear()
points.AddLast(TPoint.Create(0,Height()-1))
points.AddLast(TPoint.Create(Width()/2,0))
points.AddLast(TPoint.Create(Width()-1,Height()-1))
Case NOISE
points.Clear()
For Local x:Int=0 Until Width()
points.AddLast(TPoint.Create(x,Rand(0,Height()-1)))
Next
Default
Clear()
End Select
Draw()
End Method
End Type
Type SampleControl Extends TMCanvas
Field sample:TAudioSample
Field sound:TSound
Method Draw()
SetupGraphics()
Cls
If sample
Local s:Int=Max(1,sample.length/Width())
Local p:Int=0
Local x:Int=0
SetColor(255,255,255)
While p<sample.length
'Plot(x,Height()-1-sample.samples[p])
DrawLine(x,Height()-1,x,Height()-1-sample.samples[p]/3)
p:+s
x:+1
Wend
EndIf
Flip
End Method
Method OnRedraw()
Draw()
End Method
Method Generate(env:TPointList, wave:TPointList)
Const PERSTEP:Int=100
Const PERWAV:Int=1
Const WAVSPD:Int=10
sample=CreateAudioSample(400*PERSTEP,44100,SF_MONO8)
Local p:Int=0
Local ep:Double
Local wp:Double
Local wd:Int=PERWAV
ep=env.Point()
wp=wave.Point()
While Not env.AtEnd() And p<400*PERSTEP
For Local f:Int=0 Until PERSTEP
If Not wd
wd=PERWAV
For Local f:Int=0 Until WAVSPD
If wave.AtEnd()
wave.Reset()
EndIf
wp=wave.Point()
Next
Else
wd:-1
EndIf
sample.samples[p]=(ep*wp)*255
p:+1
Next
ep=env.Point()
Wend
Draw()
End Method
Method Play()
sound:TSound=LoadSound(sample,False)
PlaySound(sound)
End Method
Method Clear()
sample=Null
sound=Null
Draw()
End Method
End Type
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