' Particle Pinch
'
' Copyright 2005 Ian Cowburn
'
' $Id$
'
Strict
Import noddybox.vector
Import noddybox.bitmapfont
Import "types.bmx"
Import "level.bmx"

Type TGame

	Const LEVEL_NOTOVER:Int=	0
	Const LEVEL_WON:Int=		1
	Const LEVEL_LOST:Int=		2
	Const LEVEL_FINISHED:Int=	3
	Const LEVEL_CANCELLED:Int=	4
	
	Field level:TLevel
	Field ship:TShip
	Field mass:TList
	Field point:TList
	Field timer:Int
	Field num:Int
	Field lost:Int
	Field captured:Int
	Field done:Int
	Field frame:Int
	Field placed:Int
	Field txtoff:Int[]
	Field playing:Int
	Field col:Int
	Field coli:Int
	
	Field final_percent:Int
	Field pass_time:Int
	
	Function Create:TGame(level:TLevel)
		Local o:TGame=New TGame
		
		o.level=level
		o.mass=CreateList()
		o.point=CreateList()
		o.ship=o.level.CreatePlayfield(o.mass,o.point)
		o.mass.AddLast(o.ship)
		o.timer=o.level.timer
		o.num=o.point.Count()
		o.done=LEVEL_NOTOVER
		o.frame=0
		o.placed=0
		o.txtoff=[GameGFX.font.TextWidth("PARTICLES"),GameGFX.font.TextWidth("CAPTURED"),GameGFX.font.TextWidth("TIMER"),GameGFX.font.TextWidth("WAVES")]
		o.playing=False
		o.col=0
		o.coli=5
		o.final_percent=0
		o.pass_time=0
		
		TParticleMachine.Clear()
		
		FlushKeys()
		
		Return o
	End Function
	
	Method LabelMass(m:TMass)
		Local x:Int=m.x
		Local y:Int=m.y
		Local tx:Int
		Local lx:Int
		Local ty:Int
		Local ly:Int
		Local s:String
		Local l:Int
		
		If m.inverse
			s="-"+Int(m.mass)+" NEWTONS"
		Else
			s=Int(m.mass)+" NEWTONS"
		EndIf
		
		If m.friend
			s="COLLECTOR: " + s
		Else
			s="MASS: " + s
		EndIf
		
		l=GameGFX.smallfont.TextWidth(s)
		
		ly=y
		ty=Max(0,Min(GraphicsHeight()-GameGFX.smallfont.MaxHeight(),y-3))
		
		If x<GraphicsWidth()/2
			tx=0
			lx=l+2
			x:-4
		Else
			tx=GraphicsWidth()-GameGFX.smallfont.TextWidth(s)
			lx=tx-3
			x:+4
		EndIf
		
		SetColor(255,col,col)
		DrawLine(x,y,lx,ly)
		GameGFX.smallfont.Draw(s,tx,ty+2,255,col,col)
	End Method
	
	Method Intro()
		Local y:Int=GraphicsHeight()/4
		Local yi:Int=25

		col:+coli
		
		If col=255 Or col=0
			coli=-coli
		EndIf
		
		For Local m:TMass=EachIn mass
			LabelMass(m)
		Next
		
		SetScale(2,2)
	
		GameGFX.font.Centre(level.name,y,col,col,255-col)
		y:+yi
	
		GameGFX.font.Centre("Need "+level.winpercent+"% to clear",y,col/2,col,col)
		y:+yi
		
		Local n:Int=Int(level.shipmass)
		Local w:Int=Int(level.wavemass)
		
		If level.invmass
			n=-n
			w=-w
		EndIf

		GameGFX.font.Centre("Your ship has a mass of " + n + " Newtons",y,col/2,col,col)
		y:+yi

		If level.maxwave>1
			GameGFX.font.Centre("You can fire "+level.maxwave+" Gravity Waves of " + w + " Newtons",y,col/2,col,col)
		ElseIf level.maxwave=1
			GameGFX.font.Centre("You can fire 1 Gravity Wave of " + w + " Newtons",y,col/2,col,col)
		EndIf
		y:+yi

		If level.wrap
			GameGFX.font.Centre("THE UNIVERSE IS WARPED!",y,col,col/2,col/2)
			y:+yi
		EndIf
	
		y:+yi
		GameGFX.font.Centre("Press Space",y)
		y:+yi

		SetScale(1,1)
	End Method
	
	Method Play:Int()
		captured=0
		lost=0

		If playing
			If done=LEVEL_NOTOVER
				If KeyDown(GameConfig.kleft)
					ship.RotateLeft()
				EndIf
	
				If KeyDown(GameConfig.kright)
					ship.RotateRight()
				EndIf
	
				If KeyDown(GameConfig.kthrust)
					ship.Thrust()
				EndIf
	
				If KeyDown(GameConfig.kreverse)
					ship.Reverse()
				EndIf

				If KeyHit(GameConfig.kblast) And placed<level.maxwave
					If level.invmass
						ship.mass=-level.wavemass
					Else
						ship.mass=level.wavemass
					EndIf
					TParticleMachine.AddShockwave(ship)
					placed:+1
				Else
					If level.invmass
						ship.mass=-level.shipmass
					Else
						ship.mass=level.shipmass
					EndIf
				EndIf
			EndIf

			For Local m:TMass=EachIn mass
				ship.Attract(m)
				
				For Local s:TPoint=EachIn point
					s.Attract(m)
				Next
			Next
		EndIf
		
		TParticleMachine.Process()
		
		If playing
			For Local m:TMass=EachIn mass
				m.Move(True)'(level.wrap)
				m.Draw()
			Next
		Else
			For Local m:TMass=EachIn mass
				m.Draw()
			Next
		EndIf
		
		If playing		
			For Local s:TPoint=EachIn point
				s.Move(level.wrap)
				s.Draw()
				
				If s.dead
					captured:+1
				ElseIf s.lost
					lost:+1
				EndIf
			Next
		Else
			For Local s:TPoint=EachIn point
				s.Draw()
			Next
		EndIf			
		
		If playing And done=LEVEL_NOTOVER
			frame:+1
			
			If frame=60 And timer>0
				frame=0
				timer:-1
			EndIf
		EndIf
		
		Local percent:Int
		
		If done<>LEVEL_NOTOVER
			percent=final_percent
		Else
			percent:Int=Int(Double(captured)/Double(num)*100.0)
			
			If percent>=level.winpercent And pass_time=0
				pass_time=timer
			EndIf
			
			Local lostpercent:Int=Int(Double(lost)/Double(num)*100.0)
			
			If lostpercent>(101-level.winpercent)
				done=LEVEL_LOST
				FlushKeys()
				final_percent=percent
			EndIf
		EndIf
		
		If (timer=0 Or num=captured+lost) And done=LEVEL_NOTOVER
			final_percent=percent
			If percent>=level.winpercent
				done=LEVEL_WON
			Else
				done=LEVEL_LOST
			EndIf
			FlushKeys()
		EndIf
		
		GameGFX.font.Draw("PARTICLES",0,0)
		GameGFX.font.Draw(num-captured-lost,txtoff[0]+10,0,255,255,0)

		GameGFX.font.Draw("CAPTURED",200,0)

		If percent<level.winpercent
			GameGFX.font.Draw(percent+"%",txtoff[1]+210,0,255,50,50)
		Else
			GameGFX.font.Draw(percent+"%",txtoff[1]+210,0,50,255,50)
		EndIf
		
		GameGFX.font.Draw("WAVES",400,0)
		
		SetColor(255,255,255)
		For Local f:Int=0 Until level.maxwave-placed
			DrawImage(GameGFX.shock,410+txtoff[3]+f*10,3)
		Next
		
		GameGFX.font.Draw("TIMER",600,0)
		
		If timer>10
			GameGFX.font.Draw(timer,txtoff[2]+610,0)
		Else
			GameGFX.font.Draw(timer,txtoff[2]+610,0,255,0,0)
		EndIf
		
		Select done
			Case LEVEL_NOTOVER
				If playing
					Rem
					If placed<level.maxmass And mass.Count()<MAX_GRAV
						If KeyHit(KEY_SPACE)
							Local m:TMass=New TMass
							m.friend=level.placefriend
							m.inverse=level.invmass
							m.x=MouseX()
							m.y=MouseY()
							If m.friend
								m.img=GameGFX.collector
							Else
								m.img=GameGFX.star
							EndIf
							m.mass=level.placemass
							mass.AddLast(m)
							placed:+1
						EndIf
					EndIf
					EndRem
				Else
					Intro()
					If KeyHit(KEY_SPACE)
						playing=True
						FlushKeys()
					EndIf
				EndIf
				
				If KeyHit(KEY_ESCAPE)
					done=LEVEL_CANCELLED
					FlushKeys()
				EndIf
			Case LEVEL_WON
				If final_percent=100
					SetScale(4,4)
					GameGFX.font.Centre("PERFECT!",50,col,255-col,col/2)
					col:+coli
					
					If col=255 Or col=0
						TParticleMachine.AddFirework(Rand(0,GraphicsWidth()),Rand(0,GraphicsHeight()))
						'TParticleMachine.AddShockwave(Rand(0,GraphicsWidth()),Rand(0,GraphicsHeight()))
						coli=-coli
					EndIf
				EndIf
				
				SetScale(2,2)
				SetAlpha(0.7)
				GameGFX.font.Centre("LEVEL COMPLETED!",GraphicsHeight()/2+20,255,255,0)
				GameGFX.font.Centre("You got the pass mark with "+pass_time+" left on the clock",GraphicsHeight()/2+40,255,255,0)
				GameGFX.font.Centre("Press Space",GraphicsHeight()/2+80)
				SetScale(1,1)
				SetAlpha(1)
				
				If KeyHit(KEY_SPACE)
					done=LEVEL_FINISHED
					FlushKeys()
				EndIf
			Case LEVEL_LOST
				SetScale(2,2)
				SetAlpha(0.7)
				GameGFX.font.Centre("LEVEL FAILED!",GraphicsHeight()/2+20,255,64,64)
				GameGFX.font.Centre("Press Space",GraphicsHeight()/2+60)
				SetScale(1,1)
				SetAlpha(1)

				If KeyHit(KEY_SPACE)
					done=LEVEL_FINISHED
					FlushKeys()
				EndIf
		EndSelect
		
		Return done
	End Method	

End Type