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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 brl.pngloader

Import noddybox.bitmapfont
Import noddybox.gfxmenu


' Included binaries
'
Incbin "GFX/font.bmf"

Incbin "GFX/title.png"
Incbin "GFX/ship.png"
Incbin "GFX/missile.png"
Incbin "GFX/exhaust.png"
Incbin "GFX/flame.png"
Incbin "GFX/star.png"
Incbin "GFX/twinkle.png"
Incbin "GFX/asteroid.png"
Incbin "GFX/fireball.png"

Const HERTZ:Int=70

Const MISSILE_LAYER:Int=1
Const ASTEROID_LAYER:Int=2
Const ALL_LAYERS:Int=3

Type GFX
	Global font:TBitmapFont

	Global title:TImage
	
	Global ship:TImage
	Global missile:TImage
	Global exhaust:TImage
	Global flame:TImage
	Global star:TImage
	Global twinkle:TImage
	Global asteroid:TImage
	Global fireball:TImage

	Function SafeLoadImage:TImage(p:String, mode:Int)
		Local i:TImage=LoadImage(p,mode)
		Assert i,"Failed to load " + p
		Return i
	End Function
	
	Function SafeLoadAnimImage:TImage(p:String, w:Int, h:Int, f:Int, c:Int, mode:Int)
		Local i:TImage=LoadAnimImage(p,w,h,f,c,mode)
		Assert i,"Failed to load " + p
		Return i
	End Function
	
	Function Init()
		font=TBitmapFont.Load("incbin::GFX/font.bmf",0)
		
		Assert font,"Failed to load incbin::GFX/font.bmf"

		title=SafeLoadImage("incbin::GFX/title.png",0)
		
		ship=SafeLoadImage("incbin::GFX/ship.png",FILTEREDIMAGE)
		flame=SafeLoadImage("incbin::GFX/flame.png",FILTEREDIMAGE)
		MidHandleImage(ship)
		MidHandleImage(flame)

		missile=SafeLoadImage("incbin::GFX/missile.png",FILTEREDIMAGE)
		exhaust=SafeLoadImage("incbin::GFX/exhaust.png",FILTEREDIMAGE)
		SetImageHandle(missile,3,7)
		SetImageHandle(exhaust,3,3)

		star=SafeLoadImage("incbin::GFX/star.png",0)
		SetImageHandle(star,1,1)
		
		twinkle=SafeLoadAnimImage("incbin::GFX/twinkle.png",8,8,0,6,0)
		SetImageHandle(star,2,2)
		
		asteroid=SafeLoadImage("incbin::GFX/asteroid.png",FILTEREDIMAGE)
		MidHandleImage(asteroid)

		fireball=SafeLoadImage("incbin::GFX/fireball.png",FILTEREDIMAGE)
		SetImageHandle(fireball,15,15)
	End Function
End Type

Type GameConfig
	Global kleft:Int
	Global kright:Int
	Global kpause:Int
	Global kthrust:Int
	Global hiscore:Int
	Global maxlevel:Int
	Global accepted:Int
	
	Function Load()
		Local s:TStream=ReadStream("mlock.config")
		
		If s=Null
			kleft=KEY_LEFT
			kright=KEY_RIGHT
			kthrust=KEY_SPACE
			kpause=KEY_P
			hiscore=0
			maxlevel=1
			accepted=False
			Return
		EndIf
		
		s=LittleEndianStream(s)
		
		kleft=s.ReadInt()
		kright=s.ReadInt()
		kthrust=s.ReadInt()
		kpause=s.ReadInt()
		hiscore=s.ReadInt()
		maxlevel=s.ReadInt()
		accepted=s.ReadInt()
		
		s.Close()
	End Function
	
	Function Save()
		Local s:TStream=WriteStream("mlock.config")
		
		If s=Null
			Return
		EndIf
		
		s=LittleEndianStream(s)
		
		s.WriteInt(kleft)
		s.WriteInt(kright)
		s.WriteInt(kthrust)
		s.WriteInt(kpause)
		s.WriteInt(hiscore)
		s.WriteInt(maxlevel)
		s.WriteInt(accepted)
		
		s.Close()
	End Function
EndType

Type TEasyLink
	Field l:TLink
	
	Function Create:TEasyLink(l:TList)
		Local o:TEasyLink=New TEasyLink
		o.l=l.FirstLink()
		Return o
	End Function
	
	Method Value:Object()
		If l
			Return l.Value()
		Else
			Return Null
		EndIf
	End Method
	
	Method MoveNext()
		If l
			l=l.NextLink()
		EndIf
	End Method
	
	Method Remove()
		Local ol:TLink=l
		MoveNext()
		ol.Remove()
	End Method
End Type


Type Scroller
	Global msg:String
	Global msgp:Int
	Global msgx:Int
	Global txth:Int
	
	Function Init()
		Rem
		msg="                                          "
		msg:+"DURING A TEST-FLIGHT OF THE STAR-FIGHTER OGL-X YOU ARE AMBUSHED IN THE ASTEROID FIELD OUTSIDE OF MARS...   "
		msg:+"THE EVIL EMPIRE CANNOT BE ALLOWED TO DESTROY THE PROTOTYPE SO YOU MUST PILOT THE WEAPONLESS CRAFT, "
		msg:+"AVOIDING THE DEADLY MISSILES UNTIL HELP ARRIVES...   "
		msg:+"SHOW HEART YOUNG PILOT, STAR-FLEET IS DEPENDING UPON YOU!"
		EndRem
		
		msg="                                                         "
		msg:+"IT IS A TIME OF WAR.  IN A LAST DITCH ATTEMPT TO WIN A LOSING WAR THAT HAS RAGED THROUGH THE GALAXY AGAINST THE EVIL EMPIRE "
		msg:+"A NEW SHIP, THE DX-9, HAS BEEN DEVELOPED.  ON A ROUTINE TEST FLIGHT THE SHIP HAS BEEN AMBUSHED IN AN ASTEROID FIELD.  "
		msg:+"WEAPONLESS, YOU MUST PILOT THE DX-9 AND AVOID THE EMPIRE'S MISSILE SALVOS AMONGST THE ASTEROIDS...  HELP WILL ARRIVE EVENTUALLY, "
		msg:+"BUT UNTIL THEN YOU ARE OUR LAST HOPE.  IF THE DX-9 IS LOST THEN SO IS THE EARTH.  EARTH IS DEPENDING ON YOU!!!"
		
		msgx=0
		msgp=0
		
		txth=GFX.font.MaxHeight()
	End Function 
	
	Function Draw(y:Int)
		GFX.font.Draw(msg[..70],msgx,y)
		
		Rem
		SetColor(0,0,0)
		Local a:Double=1
		For Local f:Int=0 To 10
			SetAlpha(a)
			a:-0.09
			DrawLine(f,y,f,y+txth)
			DrawLine(799-f,y,799-f,y+txth)
		Next
		SetColor(255,255,255)
		SetAlpha(1)
		EndRem

		msgx:-2
		If msgx<-GFX.font.TextWidth(msg[0..1])
			msgx:+GFX.font.TextWidth(msg[0..1])
			msg=msg[1..]+msg[0..1]
		EndIf
	End Function
End Type

Type VText
	Field t:String
	Field y:Int
	
	Function Create:VText(t:String, y:Int)
		Local o:VText=New VText
		o.t=t
		o.y=y
		Return o
	End Function
End Type

Type VerticalScroller
	Global msg:TList
	Global maxy:Int
	
	Method New()
		msg=CreateList()
		maxy=0
	End Method
	
	Method Add(s:String)
		SetScale(2,2)
		msg.AddLast(VText.Create(s,maxy+800))
		maxy:+GFX.font.TextHeight(s)
		SetScale(1,1)
	End Method
	
	Method Draw()
		SetScale(2,2)
		For Local o:VText=EachIn msg
			o.y:-1
			If o.y<-GFX.font.TextHeight(o.t)
				o.y:+maxy
			EndIf
			If o.y<799
				GFX.font.Centre(o.t,o.y)
			EndIf
		Next
		SetScale(1,1)
	End Method
End Type

Type Thanks
	Global item:String[]
	Global i:Int
	Global wait:Int
	Global a:Double
	Global ai:Double
	
	Function Init()
		item=["HTTP://WWW.SLAYRADIO.ORG/", ..
			  "HTTP://WWW.BLITZBASIC.COM/"]
		i=0
		a=0
		ai=0.05
	End Function
	
	Function Draw(y:Int)
		SetAlpha(a)
		GFX.font.Centre(item[i],y)
		SetAlpha(1)
		
		If wait
			wait:-1
		Else
			a:+ai
			
			If a>1
				wait=HERTZ*5
				ai=-0.05
				a=1
			ElseIf a<0
				i=(i+1) Mod item.length
				ai=0.05
				a=0
			EndIf
		EndIf
	End Function 
End Type

Type TFadeScreen
	Field a:Double
	Field ai:Double
	
	Function Create:TFadeScreen(a:Double, ai:Double)
		Local o:TFadeScreen=New TFadeScreen
		o.a=a
		o.ai=ai
		Return o
	End Function
	
	Function FadeOut:TFadeScreen()
		Return Create(0,0.05)
	End Function

	Function FadeIn:TFadeScreen()
		Return Create(1,-0.05)
	End Function
	
	Function DoFadeIn()
		Local fade:TFadeScreen=TFadeScreen.FadeIn()
		Local pm:TPixmap=GrabPixmap(0,0,GraphicsWidth(),GraphicsHeight())
		
		While fade.Fade()
			Cls
			DrawPixmap(pm,0,0)
			fade.Draw()
			Flip
		Wend
	End Function
	
	Function DoFadeOut()
		Local fade:TFadeScreen=TFadeScreen.FadeOut()
		Local pm:TPixmap=GrabPixmap(0,0,GraphicsWidth(),GraphicsHeight())
		
		While fade.Fade()
			Cls
			DrawPixmap(pm,0,0)
			fade.Draw()
			Flip
		Wend
	End Function
	
	Method Fade:Int()
		a:+ai
		Return a>0 And a<1
	End Method

	Method Draw()
		Local r:Int,g:Int,b:Int
		Local x:Float,y:Float
		Local oa:Double=GetAlpha()
		GetColor(r,g,b)
		GetOrigin(x,y)
		SetAlpha(a)
		SetColor(0,0,0)
		DrawRect(-x,-y,GraphicsWidth(),GraphicsHeight())
		SetColor(r,g,b)
		SetAlpha(oa)
	End Method
End Type


Type Number
	Function Format:String(num:Int)
		Local c:Int=0
		Local ret:String=""
		Local a:String=String.FromInt(num)
		
		For Local f:Int=a.length-1 To 0 Step -1
			If ret.length And (c Mod 3)=0
				ret=","+ret
			EndIf
			ret=a[f..f+1]+ret
			c:+1
		Next
		Return ret
	End Function
End Type