mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-25 00:30:48 +00:00
669 lines
17 KiB
ArmAsm
669 lines
17 KiB
ArmAsm
****************************************
|
|
* FONT ENGINE (v3?) *
|
|
* *
|
|
* Dagen Brock <dagenbrock@gmail.com> *
|
|
* 2013-07-20 *
|
|
****************************************
|
|
* A= ptr to string preceded by length *
|
|
* X= screen location *
|
|
****************************************
|
|
; each char:
|
|
; draw char at loc
|
|
; update loc
|
|
; see if length hit - no? back to draw char
|
|
rel
|
|
mx %00
|
|
]F_Length ds 2 ;length of string (only one byte currently used)
|
|
]F_CharIdx ds 2 ;index of current character
|
|
]F_CurrentPos ds 2 ;current top left char position
|
|
]F_StrPtr equ $01 ;pointer to string (including length byte) / DP
|
|
]F_StrClr equ $03
|
|
|
|
DrawString
|
|
pha ; local variable space
|
|
pha
|
|
tsc
|
|
phd
|
|
tcd
|
|
|
|
; sta ]F_StrPtr ; (done in pha init above) store at dp 0 ($00) for indirect loads
|
|
stx ]F_CurrentPos
|
|
sty ]F_StrClr
|
|
stz ]F_CharIdx
|
|
lda (]F_StrPtr)
|
|
and #$00ff ;strip off first char (len is only one byte)
|
|
sta ]F_Length ;get our length byte
|
|
|
|
NextChar lda ]F_CharIdx
|
|
cmp ]F_Length
|
|
bne :notDone
|
|
ldy ]F_StrClr ;restore the color pattern
|
|
pld
|
|
pla
|
|
pla
|
|
rts ;DONE! Return to caller
|
|
|
|
:notDone inc ]F_CharIdx
|
|
ldy ]F_CharIdx
|
|
lda (]F_StrPtr),y ;get next char!
|
|
and #$00FF ;mask high byte
|
|
sec
|
|
sbc #' ' ;our table starts with space ' '
|
|
asl ;*2
|
|
tay
|
|
ldx ]F_CurrentPos
|
|
jsr :drawChar
|
|
inc ]F_CurrentPos ;compare to addition time (?)
|
|
inc ]F_CurrentPos
|
|
inc ]F_CurrentPos
|
|
inc ]F_CurrentPos ;update screen pos (2 words=8 pixels)
|
|
bra NextChar
|
|
|
|
;x = TopLeft screen pos
|
|
;y = char table offset
|
|
:drawChar lda FontTable,y ;get real address of char data
|
|
sec
|
|
sbc #FontData ;pivot offset - now a is offset of fontdata
|
|
tay ;so we'll index with that
|
|
|
|
lda FontData,y
|
|
and ]F_StrClr
|
|
stal $E12000,x
|
|
|
|
lda FontData+2,y
|
|
and ]F_StrClr
|
|
stal $E12000+2,x
|
|
|
|
lda FontData+4,y
|
|
and ]F_StrClr
|
|
stal $E12000+160,x
|
|
|
|
lda FontData+6,y
|
|
and ]F_StrClr
|
|
stal $E12000+160+2,x
|
|
|
|
lda FontData+8,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*2},x
|
|
|
|
lda FontData+10,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*2+2},x
|
|
|
|
lda FontData+12,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*3},x
|
|
|
|
lda FontData+14,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*3+2},x
|
|
|
|
lda FontData+16,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*4},x
|
|
|
|
lda FontData+18,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*4+2},x
|
|
|
|
lda FontData+20,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*5},x
|
|
|
|
lda FontData+22,y
|
|
and ]F_StrClr
|
|
stal {$E12000+160*5+2},x
|
|
rts
|
|
|
|
FontTable dw s_Space
|
|
dw s_Exclaim
|
|
dw s_Quote
|
|
dw s_Number
|
|
dw s_Dollar
|
|
dw s_Percent
|
|
dw s_Amper
|
|
dw s_Single
|
|
dw s_OpenParen
|
|
dw s_CloseParen
|
|
dw s_Asterix
|
|
dw s_Plus
|
|
dw s_Comma
|
|
dw s_Minus
|
|
dw s_Period
|
|
dw s_Slash
|
|
dw s_N0
|
|
dw s_N1
|
|
dw s_N2
|
|
dw s_N3
|
|
dw s_N4
|
|
dw s_N5
|
|
dw s_N6
|
|
dw s_N7
|
|
dw s_N8
|
|
dw s_N9
|
|
dw s_Colon
|
|
dw s_Semi
|
|
dw s_LAngle
|
|
dw s_Equal
|
|
dw s_RAngle
|
|
dw s_Question
|
|
dw s_At
|
|
dw s_A
|
|
dw s_B
|
|
dw s_C
|
|
dw s_D
|
|
dw s_E
|
|
dw s_F
|
|
dw s_G
|
|
dw s_H
|
|
dw s_I
|
|
dw s_J
|
|
dw s_K
|
|
dw s_L
|
|
dw s_M
|
|
dw s_N
|
|
dw s_O
|
|
dw s_P
|
|
dw s_Q
|
|
dw s_R
|
|
dw s_S
|
|
dw s_T
|
|
dw s_U
|
|
dw s_V
|
|
dw s_W
|
|
dw s_X
|
|
dw s_Y
|
|
dw s_Z
|
|
dw s_LBracket
|
|
dw s_BackSlash
|
|
dw s_RBracket
|
|
dw s_Carot
|
|
dw s_UnderLine
|
|
|
|
FontData = *
|
|
s_Space hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
s_Exclaim hex 000FF000
|
|
hex 000FF000
|
|
hex 000FF000
|
|
hex 000FF000
|
|
hex 00000000
|
|
hex 000FF000
|
|
|
|
s_Quote hex 0FF00FF0
|
|
hex 00F000F0
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
s_Number hex 00000000
|
|
hex 00F00F00
|
|
hex 0FFFFFF0
|
|
hex 00F00F00
|
|
hex 0FFFFFF0
|
|
hex 00F00F00
|
|
|
|
s_Dollar hex 000F0F00
|
|
hex 00FFFFF0
|
|
hex 0F0F0F00
|
|
hex 00FFFF00
|
|
hex 000F0FF0
|
|
hex 0FFFFF00
|
|
|
|
s_Percent hex 0FF000F0
|
|
hex 00000F00
|
|
hex 0000F000
|
|
hex 000F0000
|
|
hex 00F00000
|
|
hex 0F000FF0
|
|
|
|
s_Amper hex 000FF000
|
|
hex 00F00F00
|
|
hex 0F00F000
|
|
hex 00F000F0
|
|
hex 0F0FFF00
|
|
hex 00F0F000
|
|
|
|
s_Single hex 000FF000
|
|
hex 0000F000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
s_OpenParen hex 000FF000
|
|
hex 00FF0000
|
|
hex 0FF00000
|
|
hex 0FF00000
|
|
hex 00FF0000
|
|
hex 000FF000
|
|
|
|
s_CloseParen hex 000FF000
|
|
hex 0000FF00
|
|
hex 00000FF0
|
|
hex 00000FF0
|
|
hex 0000FF00
|
|
hex 000FF000
|
|
|
|
|
|
s_Asterix hex 00000000
|
|
hex 00F0F0F0
|
|
hex 000FFF00
|
|
hex 00FFFFF0
|
|
hex 000FFF00
|
|
hex 00F0F0F0
|
|
|
|
s_Plus hex 000F0000
|
|
hex 000F0000
|
|
hex 0FFFFF00
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 00000000
|
|
|
|
s_Comma hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 0000FF00
|
|
hex 0000F000
|
|
|
|
s_Minus hex 00000000
|
|
hex 00000000
|
|
hex 0FFFFF00
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
|
|
s_Period hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 0000FF00
|
|
hex 0000FF00
|
|
|
|
s_Slash hex 000000F0
|
|
hex 00000F00
|
|
hex 0000F000
|
|
hex 000F0000
|
|
hex 00F00000
|
|
hex 0F000000
|
|
|
|
s_N0 hex 00FFFF00
|
|
hex 0F000FF0
|
|
hex 0F00F0F0
|
|
hex 0F0F00F0
|
|
hex 0FF000F0
|
|
hex 00FFFF00
|
|
|
|
s_N1 hex 000F0000
|
|
hex 00FF0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 00FFF000
|
|
|
|
s_N2 hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 00000F00
|
|
hex 000FF000
|
|
hex 00F00000
|
|
hex 0FFFFFF0
|
|
|
|
s_N3 hex 00FFFF00
|
|
hex 000000F0
|
|
hex 000FFF00
|
|
hex 000000F0
|
|
hex 000000F0
|
|
hex 00FFFF00
|
|
|
|
s_N4 hex 0000FF00
|
|
hex 000F0F00
|
|
hex 00F00F00
|
|
hex 0FFFFFF0
|
|
hex 00000F00
|
|
hex 00000F00
|
|
|
|
s_N5 hex 0FFFFFF0
|
|
hex 0F000000
|
|
hex 0FFFFF00
|
|
hex 000000F0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_N6 hex 000FFF00
|
|
hex 00F00000
|
|
hex 0F000000
|
|
hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 00FFFFF0
|
|
|
|
s_N7 hex 0FFFFFF0
|
|
hex 000000F0
|
|
hex 00000F00
|
|
hex 0000F000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
|
|
s_N8 hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_N9 hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
hex 0000F000
|
|
hex 000F0000
|
|
hex 00F00000
|
|
|
|
s_Colon hex 000FF000
|
|
hex 000FF000
|
|
hex 00000000
|
|
hex 000FF000
|
|
hex 000FF000
|
|
hex 00000000
|
|
|
|
s_Semi hex 00000000
|
|
hex 000FF000
|
|
hex 000FF000
|
|
hex 00000000
|
|
hex 000FF000
|
|
hex 000F0000
|
|
|
|
s_LAngle hex 0000F000
|
|
hex 000F0000
|
|
hex 00F00000
|
|
hex 000F0000
|
|
hex 0000F000
|
|
hex 00000000
|
|
|
|
s_Equal hex 00000000
|
|
hex 00000000
|
|
hex 0FFFFF00
|
|
hex 00000000
|
|
hex 0FFFFF00
|
|
hex 00000000
|
|
|
|
s_RAngle hex 0000F000
|
|
hex 00000F00
|
|
hex 000000F0
|
|
hex 00000F00
|
|
hex 0000F000
|
|
hex 00000000
|
|
|
|
s_Question hex 00FFF000
|
|
hex 0F000F00
|
|
hex 00000F00
|
|
hex 000FF000
|
|
hex 00000000
|
|
hex 000FF000
|
|
|
|
s_At hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 0F00F0F0
|
|
hex 0FFFF0F0
|
|
hex 000000F0
|
|
hex 0FFFFF00
|
|
|
|
s_A hex 000FF000
|
|
hex 00F00F00
|
|
hex 0F0000F0
|
|
hex 0FFFFFF0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
|
|
s_B hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0FFFFF00
|
|
|
|
s_C hex 00FFFFF0
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 00FFFFF0
|
|
|
|
s_D hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0FFFFF00
|
|
|
|
s_E hex 0FFFFFF0
|
|
hex 0F000000
|
|
hex 0FFFF000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0FFFFFF0
|
|
|
|
s_F hex 0FFFFFF0
|
|
hex 0F000000
|
|
hex 0FFFF000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
|
|
s_G hex 00FFFFF0
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F00FFF0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_H hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0FFFFFF0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
|
|
s_I hex 0FFFFF00
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 0FFFFF00
|
|
|
|
s_J hex 000000F0
|
|
hex 000000F0
|
|
hex 000000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_K hex 0F000F00
|
|
hex 0F00F000
|
|
hex 0FFF0000
|
|
hex 0F00F000
|
|
hex 0F000F00
|
|
hex 0F000F00
|
|
|
|
s_L hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0FFFFFF0
|
|
|
|
s_M hex 0F0000F0
|
|
hex 0FF00FF0
|
|
hex 0F0FF0F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
|
|
s_N hex 0F0000F0
|
|
hex 0FF000F0
|
|
hex 0F0F00F0
|
|
hex 0F00F0F0
|
|
hex 0F000FF0
|
|
hex 0F0000F0
|
|
|
|
s_O hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_P hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 0FFFFF00
|
|
hex 0F000000
|
|
hex 0F000000
|
|
hex 0F000000
|
|
|
|
s_Q hex 00FFFF00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F00F0F0
|
|
hex 0F000FF0
|
|
hex 00FFFFF0
|
|
|
|
s_R hex 0FFFFF00
|
|
hex 0F0000F0
|
|
hex 0FFFFF00
|
|
hex 0F000F00
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
|
|
s_S hex 00FFFFF0
|
|
hex 0F000000
|
|
hex 00FFFF00
|
|
hex 000000F0
|
|
hex 000000F0
|
|
hex 0FFFFF00
|
|
|
|
s_T hex 0FFFFF00
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
|
|
s_U hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 00FFFF00
|
|
|
|
s_V hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 00F00F00
|
|
hex 000FF000
|
|
|
|
s_W hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0000F0
|
|
hex 0F0FF0F0
|
|
hex 0FF00FF0
|
|
hex 0F0000F0
|
|
|
|
s_X hex 0F0000F0
|
|
hex 00F00F00
|
|
hex 000FF000
|
|
hex 000FF000
|
|
hex 00F00F00
|
|
hex 0F0000F0
|
|
|
|
s_Y hex F00000F0
|
|
hex 0F000F00
|
|
hex 00F0F000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
|
|
s_Z hex 0FFFFFF0
|
|
hex 00000F00
|
|
hex 0000F000
|
|
hex 000F0000
|
|
hex 00F00000
|
|
hex 0FFFFFF0
|
|
|
|
s_LBracket hex 000FFF00
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000F0000
|
|
hex 000FFF00
|
|
|
|
s_BackSlash hex 0F000000
|
|
hex 00F00000
|
|
hex 000F0000
|
|
hex 0000F000
|
|
hex 00000F00
|
|
hex 000000F0
|
|
|
|
s_RBracket hex 00FFF000
|
|
hex 0000F000
|
|
hex 0000F000
|
|
hex 0000F000
|
|
hex 0000F000
|
|
hex 00FFF000
|
|
|
|
s_Carot hex 0000F000
|
|
hex 000F0F00
|
|
hex 00F000F0
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
s_UnderLine hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex FFFFFFF0
|
|
|
|
s_Template hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
hex 00000000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|