;===================================================================
;BLASTOPIA (C) 2018 THE NEW DIMENSION
;PROGRAMMING, GRAPHICS, SFX AND MUSIC BY RICHARD BAYLISS
;http://tnd64.unikat.sk
;===================================================================

STARTINGLEVEL = 0

;Part of the Assemble It tutorial

;FEATURING:

;-Assorted alien movement patterns using set paths
; from TND's Alien Formation Maker V1.0
;-Software sprite/background collision
;-Smooth scrolling of short maps (using 256 bytes)
;-Background animation
;-Level decompression (Exomizer)
;-Purely fun game play

;Generate C64 file
!to "blastopia.prg",cbm 

;Import source variables

!source "variables.asm"



;Import graphics charset data (Raw Binary form)
*=$0800
CHARSET
!bin "files/gamecharset.bin"

;Actual sprite movement table data to store 
;to, due to code/data memory. 

*=$1000
;A spare table for the formation X/Y copy 
formationX 
!fill $100,$00
formationY
!fill $100,$00
 

;Import game sprites (Raw Binary format)
*=$2000
!bin "files/gamesprites.bin"

;Import start screen (Raw binary format)
*=$3c00
STARTMAP
!bin "files/startscreen.bin" 

;Import game map (Test map)
;TO: Compress each map for other levels using
;exomizer cruncher. Then extract/decrunch each map
;to specific address with decruncher source

*=$4000
	sei
	lda #$36
	sta $01
	lda $02a6							;PAL/NTSC patch
	sta SYSTEM
	lda #250
	sta $0328 						;Disable RUN/RESTORE key
	lda #<TITLESCREEN
	sta $0318
	lda #>TITLESCREEN 
	sta $0319
	;One time - Backup char 42 and store as a temporary byte
	;The lazer char should switch on and off!
	
	ldx #$00
BackupLazer
	lda CHARSET+42*8,x
	sta LazerBackup,x
	inx
	cpx #8
	bne BackupLazer
	
	;One time hidden cheat 
	lda $dc00  
	lsr ;up (ignore)
	lsr ;down (ignore)
	lsr ;left (ignore)
	lsr ;Pull right to enable infinite lives
	bcs NoCheat
	
;Cheat activated - Give player infinite lives 

	lda #$2c
	sta LivesCheat
	
NoCheat	
	
	!source "gamecode.asm" ;Call separate file to assemble

 ;Align the next segment of data to the nearest
 ;$100 position in memory
 !align $ff,$00
;Import the sprite formation
formation01
 !bin "files/formation01.prg",,2
formation02
 !bin "files/formation02.prg",,2
formation03
 !bin "files/formation03.prg",,2
formation04
 !bin "files/formation04.prg",,2
formation05
 !bin "files/formation05.prg",,2
formation06
 !bin "files/formation06.prg",,2
formation07
 !bin "files/formation07.prg",,2
formation08
 !bin "files/formation08.prg",,2
formation09
 !bin "files/formation09.prg",,2
formation10
 !bin "files/formation10.prg",,2
formation11
 !bin "files/formation11.prg",,2
formation12
 !bin "files/formation12.prg",,2
formation13
 !bin "files/formation13.prg",,2
formation14
 !bin "files/formation14.prg",,2
formation15
 !bin "files/formation15.prg",,2
formation16
 !bin "files/formation16.prg",,2
formation17
 !bin "files/formation17.prg",,2
formation18
 !bin "files/formation18.prg",,2
formation19
 !bin "files/formation19.prg",,2
formation20
 !bin "files/formation20.prg",,2
formation21
 !bin "files/formation21.prg",,2
formation22
 !bin "files/formation22.prg",,2
formation23
 !bin "files/formation23.prg",,2
formation24
 !bin "files/formation24.prg",,2

;Import music data $8F00 (As it exceeds 4096 bytes)
*=$8F00
!bin "files/music.prg",,2

;All compressed files through exomizer have been 
;set to depack to the address $a000-$b400. So no 
;additional relocation code will be required. The
;decruncher will do its job.

*=$a000
GAMEMAP
!bin "files/level1map.bin"

;Compressed level data
*=$b400 
LEVEL1MAPSTART
!bin "level1map_cr.prg",,2
LEVEL1MAPEND
!byte 0
LEVEL2MAPSTART
!bin "level2map_cr.prg",,2
LEVEL2MAPEND
!byte 0
LEVEL3MAPSTART
!bin "level3map_cr.prg",,2
LEVEL3MAPEND
!byte 0
LEVEL4MAPSTART 
!bin "level4map_cr.prg",,2
LEVEL4MAPEND
!byte 0
LEVEL5MAPSTART
!bin "level5map_cr.prg",,2
LEVEL5MAPEND
!byte 0
LEVEL6MAPSTART
!bin "level6map_cr.prg",,2
LEVEL6MAPEND  
!byte 0
LEVEL7MAPSTART
!bin "level7map_cr.prg",,2
LEVEL7MAPEND
!byte 0
LEVEL8MAPSTART
!bin "level8map_cr.prg",,2
LEVEL8MAPEND 
!byte 0

;Import the DASM assembled Exomizer decruncher
;(Note the -P0 prefix should be added when level 
;packing data if using Exomizer V3.0.1 or higher

*=$c400
!bin "files/leveldecruncher.prg",,2
;Import the game status panel mask
	
	!align $ff,$00
STATUSPANEL
	!bin "files/statuspanel.bin"
STATUSPANELEND
	!align $ff,$00
LOGOMATRIX
!bin "files/titlescreenlogo.bin"
	!align $ff,$00