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' Particle Pinch
'
' Copyright 2005 Ian Cowburn
'
' $Id$
'
Strict
Import noddybox.vector
Import noddybox.bitmapfont
Const MASSSIZE:Int=8
Const MASSRAD:Int=4
Const SHIPSIZE:Int=12
Const SHIPRAD:Int=6
Type Lookup
Global si:Double[]
Global co:Double[]
Function Init()
si=New Double[360]
co=New Double[360]
For Local a:Int=0 To 359
si[a]=Sin(a)
co[a]=Cos(a)
Next
End Function
End Type
Type GameGFX
Global font:TBitmapFont
Global smallfont:TBitmapFont
Global star:TImage
Global ship:TImage
Global collector:TImage
Global point:TImage
Global particle:Timage
Global pointer:TImage
Global shock:TImage
Global play_button:TImage
Global edit_button:TImage
Global load_button:TImage
Global toy_button:TImage
Global quit_button:TImage
Global left_button:TImage
Global right_button:TImage
Global scores_button:TImage
Global keys_button:TImage
End Type
Type GameConfig
Global kleft:Int
Global kright:Int
Global kthrust:Int
Global kreverse:Int
Global kblast:Int
Function Load()
Local s:TStream=ReadStream("ppinch.config")
If s=Null
kleft=KEY_O
kright=KEY_P
kthrust=KEY_Q
kreverse=KEY_A
kblast=KEY_SPACE
Return
EndIf
s=LittleEndianStream(s)
kleft=s.ReadInt()
kright=s.ReadInt()
kthrust=s.ReadInt()
kreverse=s.ReadInt()
kblast=s.ReadInt()
s.Close()
End Function
Function Save()
Local s:TStream=WriteStream("ppinch.config")
If s=Null
Return
EndIf
s=LittleEndianStream(s)
s.WriteInt(kleft)
s.WriteInt(kright)
s.WriteInt(kthrust)
s.WriteInt(kreverse)
s.WriteInt(kblast)
s.Close()
End Function
EndType
Type TGfxObject
Field x:Double
Field y:Double
EndType
Type TMass Extends TGfxObject
Field v:TVector
Field mass:Double
Field friend:Int
Field inverse:Int
Field img:TImage
Field swallow:Int
Field rad:Int
Method New()
v=TVector.Create()
x=Rnd(0,GraphicsWidth())
y=Rnd(0,GraphicsWidth())
mass=25
friend=True
inverse=False
swallow=0
rad=MASSRAD
End Method
Method Attract(o:TMass)
If o=Self
Return
EndIf
Local d:TVector=TVector.Create(o.x-x,o.y-y)
Local l:Double=d.Length()
If l>0.1
l:*l
d.Normalise()
d.Scale((1/l)*o.mass)
If o.inverse
d.Minus()
EndIf
v.Add(d)
If v.Length()>MASSSIZE
v.SetLength(MASSSIZE)
EndIf
EndIf
End Method
Method Move(wrap:Int)
x:+v.x
y:+v.y
If wrap
If x<0
x:+GraphicsWidth()
EndIf
If x>GraphicsWidth()
x:-GraphicsWidth()
EndIf
If y<0
y:+GraphicsHeight()
EndIf
If y>GraphicsHeight()
y:-GraphicsHeight()
EndIf
Else
If x<0
x=0
EndIf
If x>GraphicsWidth()
x=GraphicsWidth()
EndIf
If y<0
y=0
EndIf
If y>GraphicsHeight()
y=GraphicsHeight()
EndIf
EndIf
End Method
Method Draw()
SetColor(255,255,255)
DrawImage(img,x,y,swallow)
swallow=0
End Method
End Type
Type TShip Extends TMass
Field a:Int
Method New()
v=TVector.Create()
x=-1
y=-1
mass=25
friend=False
inverse=False
swallow=0
rad=SHIPRAD
a=0
End Method
Method RotateLeft()
a:-2
If a<0
a:+359
EndIf
End Method
Method RotateRight()
a=(a+2) Mod 360
End Method
Method Thrust()
v.x:+Lookup.si[a]*0.1
v.y:+Lookup.co[a]*-0.1
If v.Length()>MASSSIZE
v.SetLength(MASSSIZE)
EndIf
End Method
Method Reverse()
v.x:+Lookup.si[a]*-0.05
v.y:+Lookup.co[a]*0.05
If v.Length()>MASSSIZE
v.SetLength(MASSSIZE)
EndIf
End Method
Method Draw()
SetColor(255,255,255)
SetRotation(a)
DrawImage(img,x,y)
SetRotation(0)
swallow=0
End Method
End Type
Type TPoint Extends TGfxObject
Global img:TImage
Field lx:Double
Field ly:Double
Field v:TVector
Field r:Int
Field g:Int
Field b:Int
Field dead:Int
Field lost:Int
Method New()
v=TVector.Create()
x=Rnd(0,GraphicsWidth())
y=Rnd(0,GraphicsWidth())
lx=x
ly=y
r=Rand(100,200)
g=Rand(100,200)
b=Rand(100,200)
dead=False
lost=False
End Method
Method Attract:Int(o:TMass)
If dead Or lost
Return
EndIf
Local d:TVector=TVector.Create(o.x-x,o.y-y)
Local l:Double=d.Length()
If l<o.rad
If o.friend
dead=True
Else
lost=True
EndIf
TParticleMachine.AddCaptured(Self)
o.swallow=1
Else
l:*l
d.Normalise()
d.Scale((1/l)*o.mass)
If o.inverse
d.Minus()
EndIf
v.Add(d)
If v.Length()>MASSRAD
v.SetLength(MASSRAD)
EndIf
EndIf
Return dead
End Method
Method Move(wrap:Int=False)
If (Not dead) And (Not lost)
lx=x
ly=y
x:+v.x
y:+v.y
If wrap
If x<0
x:+GraphicsWidth()
EndIf
If x>GraphicsWidth()
x:-GraphicsWidth()
EndIf
If y<0
y:+GraphicsHeight()
EndIf
If y>GraphicsHeight()
y:-GraphicsHeight()
EndIf
Else
If x<0 Or y<0 Or x>GraphicsWidth() Or y>GraphicsHeight()
lost=True
TParticleMachine.AddLost(Self)
EndIf
EndIf
EndIf
End Method
Method Draw()
If (Not dead) And (Not lost)
SetColor(r,g,b)
DrawImage(img,x,y,0)
EndIf
End Method
End Type
Type TParticle
Global img:TImage
Field parent:TGfxObject
Field x:Double
Field y:Double
Field a:Double
Field r:Int
Field g:Int
Field b:Int
Field dx:Double
Field dy:Double
Field ai:Double
Function FromLostPoint:TParticle(p:TPoint, d:Int)
Local o:TParticle=New TParticle
o.x=p.lx'-p.v.x*d
o.y=p.ly'-p.v.y*d
o.dx=-p.v.x*d
o.dy=-p.v.y*d
o.r=p.r
o.g=p.g
o.b=p.b
o.a=1
o.ai=-0.05
Return o
End Function
Function FromCapturedPoint:TParticle(p:TPoint, d:Int)
Local o:TParticle=New TParticle
o.x=p.x
o.y=p.y
o.dx=Rnd(-1,1)
o.dy=Rnd(-1,1)
o.r=p.r
o.g=p.g
o.b=p.b
o.a=1
o.ai=-0.05
Return o
End Function
Function FromCoord:TParticle(x:Int, y:Int)
Local o:TParticle=New TParticle
o.x=x
o.y=y
o.dx=Rnd(-2,2)
o.dy=Rnd(-2,2)
o.r=Rand(128,255)
o.g=Rand(128,255)
o.b=Rand(128,255)
o.a=1
o.ai=-0.01
Return o
End Function
Function Angular:TParticle(x:Int, y:Int, a:Int, sp:Double, r:Int, g:Int, b:Int, al:Double, ali:Double, parent:TGfxObject)
Local o:TParticle=New TParticle
o.parent=parent
o.x=x
o.y=y
o.dx=sp*Lookup.si[a]
o.dy=sp*Lookup.co[a]
o.r=r
o.g=g
o.b=b
o.a=al
o.ai=ali
Return o
End Function
Method Update()
x:+dx
y:+dy
a:+ai
If a>0
SetAlpha(a)
SetColor(r,g,b)
If parent
DrawImage(img,parent.x+x,parent.y+y)
Else
DrawImage(img,x,y)
EndIf
EndIf
End Method
End Type
Type TParticleMachine
Global list:TList
Function Init()
list=CreateList()
End Function
Function Clear()
list.Clear()
End Function
Function AddLost(p:TPoint)
For Local f:Int=0 To 5
list.AddLast(TParticle.FromLostPoint(p,f))
Next
End Function
Function AddCaptured(p:TPoint)
For Local f:Int=0 To 5
list.AddLast(TParticle.FromCapturedPoint(p,f))
Next
End Function
Function AddFirework(x:Int, y:Int)
For Local f:Int=0 To 20
list.AddLast(TParticle.FromCoord(x,y))
Next
End Function
Function AddShockwave(o:TGfxObject)
For Local a:Int=0 To 359
list.AddLast(TParticle.Angular(0,0,a,1.0,255,255,0,1,-0.01,o))
list.AddLast(TParticle.Angular(0,0,a,Rnd(0.8,1.2),255,0,0,1,-0.01,o))
list.AddLast(TParticle.Angular(0,0,a,Rnd(0.8,1.2),255,0,0,1,-0.01,o))
list.AddLast(TParticle.Angular(0,0,a,Rnd(0.8,1.2),255,0,0,1,-0.01,o))
Next
End Function
Function Process()
Local l:TLink=list.FirstLink()
Local t:TLink
While l<>Null
Local p:TParticle=TParticle(l.Value())
p.Update()
If p.a<0.01
t=l.NextLink()
l.Remove()
l=t
Else
l=l.NextLink()
EndIf
Wend
SetAlpha(1)
SetColor(255,255,255)
End Function
End Type
|