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' Missile Lock
'
' 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
'
' -------------------------------------------------------------------------
'
' $Id$
'
Strict
Import noddybox.algorithm
Import "global.bmx"
Import "gametypes.bmx"
Type TParticle
Field life:Int
Field i:TImage
Field x:Double
Field y:Double
Field a:Double
Field dx:Double
Field dy:Double
Field ai:Double
Field s:Double
Field si:Double
Function Image:TParticle(i:TImage, x:Int, y:Int)
Local o:TParticle=New TParticle
o.life=120
o.x=x
o.y=y
o.a=1
o.ai=-0.01
o.dx=0
o.dy=0
o.s=1
o.si=0
o.i=i
Return o
End Function
Function ScaleImage:TParticle(i:TImage, x:Int, y:Int,si:Double)
Local o:TParticle=New TParticle
o.life=120
o.x=x
o.y=y
o.a=1
o.ai=-0.01
o.dx=0
o.dy=0
o.s=1
o.si=si
o.i=i
Return o
End Function
Method Update:Int()
SetAlpha(a)
SetScale(s,s)
DrawImage(i,x,y)
x:+dx
y:+dy
life:-1
a:+ai
s:+si
Return life>0
End Method
End Type
Type Particles
Global plist:TList
Function Init()
plist=CreateList()
End Function
Function Clear()
plist.Clear()
End Function
Function AddImage(i:TImage, x:Int, y:Int)
If plist.Count()<1000
plist.AddLast(TParticle.Image(i,x,y))
EndIf
End Function
Function AddScaledImage(i:TImage, x:Int, y:Int, si:Double=0.1)
If plist.Count()<1000
plist.AddLast(TParticle.ScaleImage(i,x,y,si))
EndIf
End Function
Function Draw()
SetColor(255,255,255)
Local l:TEasyLink=TEasyLink.Create(plist)
While l.Value()
Local p:TParticle=TParticle(l.Value())
If (p.Update())
l.MoveNext()
Else
l.Remove()
EndIf
Wend
SetAlpha(1)
SetScale(1,1)
End Function
End Type
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