home *** CD-ROM | disk | FTP | other *** search
- ;-------T-------T------------------------T----------------------------------;
- ;AGA Fade
- ;--------
- ;Fades in a 32 colour AGA picture (24 bit colour). Then up to a specified
- ;colour (greenish yellow), and then out to black.
- ;
- ;Press left mouse button to exit.
-
- INCDIR "INCLUDES:"
- INCLUDE "exec/exec_lib.i"
- INCLUDE "games/games_lib.i"
- INCLUDE "games/games.i
- CALL MACRO
- jsr _LVO\1(a6)
- ENDM
-
- SECTION "AGAFade",CODE
-
- ;===========================================================================;
- ; INITIALISE DEMO
- ;===========================================================================;
-
- Start: MOVEM.L A0-A6/D1-D7,-(SP)
- move.l ($4).w,a6
- lea GMS_Name(pc),a1
- moveq #$00,d0
- CALL OpenLibrary
- move.l d0,GMS_Base
- beq.s .Error_GMS
-
- move.l GMS_Base(pc),a6
- sub.l a0,a0
- CALL SetUserPrefs
-
- lea Screen(pc),a0
- CALL AddScreen
- tst.l d0
- bne.s .Error_Screen
-
- lea Picture(pc),a1
- move.l GS_MemPtr1(a0),PIC_Data(a1)
- CALL LoadPic
- tst.w d0
- bne.s .Error_Picture
-
- CALL ShowScreen
-
- bsr.s Main
-
- .ReturnToDOS
- move.l GMS_Base(pc),a6
- lea Picture(pc),a1
- CALL FreePic
- .Error_Picture
- lea Screen(pc),a0
- CALL DeleteScreen
- .Error_Screen
- move.l ($4).w,a6
- move.l GMS_Base(pc),a1
- CALL CloseLibrary
- .Error_GMS
- MOVEM.L (SP)+,A0-A6/D1-D7
- moveq #$00,d0
- rts
-
- ;===========================================================================;
- ; MAIN CODE
- ;===========================================================================;
-
- Main: moveq #$00,d0 ;d0 = FadeState
- moveq #5,d1 ;d1 = Speed of fade.
- move.l Picture+PIC_Palette(pc),a1 ;a1 = Palette to fade to.
- moveq #$000000,d2 ;d2 = Fading from black.
- moveq #00,d3 ;d3 = Start colour.
- moveq #32,d4 ;d4 = Amount of colours.
- .f_in CALL WaitSVBL
- CALL ColourToPalette ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_in ;If not, keep doing it.
-
- moveq #2,d1 ;d1 = Speed of fade.
- move.l Picture+PIC_Palette(pc),a1 ;a1 = Palette we are fading from.
- move.l #$75F343,d2 ;d2 = Colour we are fading to.
- .f_mid CALL WaitSVBL
- CALL PaletteToColour ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_mid ;If not, keep doing it.
-
- moveq #2,d1 ;d1 = Speed of fade.
- move.l #$a5F343,d2 ;d2 = Colour.
- moveq #$000000,d5 ;d5 = Colour.
- .f_out CALL WaitSVBL
- CALL ColourMorph ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_out ;If not, keep doing it.
- rts
-
- ;===========================================================================;
- ; DATA
- ;===========================================================================;
-
- GMS_Name:
- dc.b "games.library",0
- even
- GMS_Base:
- dc.l 0
-
- AMT_PLANES = 5
-
- Screen: dc.l GSV1,0 ;Version header.
- dc.l 0,0,0 ;Screen memory 1/2/3.
- dc.l 0 ;Screen link.
- dc.l 0 ;Address of palette.
- dc.l 0 ;Address of rasterlist.
- dc.l 32 ;Amount of colours in palette.
- dc.w 320,256 ;Screen Width and Height.
- dc.w 0,0,0 ;Picture Width, ByteWidth, Height.
- dc.w AMT_PLANES ;Amount of planes.
- dc.w 0,0 ;X/Y screen offsets.
- dc.w 0,0 ;X/Y picture offsets.
- dc.l 0 ;Special attributes.
- dc.w LORES|COL24BIT ;Screen mode.
- dc.w ILBM ;Screen type
-
- Picture dc.l PCV1,0 ;Version header.
- dc.l 0 ;Source data.
- dc.w 320,0,256 ;Width, Height.
- dc.w AMT_PLANES ;Amount of Planes.
- dc.l 32 ;Amount of colours.
- dc.l 0 ;Source palette (remap).
- dc.w LORES|COL24BIT ;Screen mode.
- dc.w ILBM ;Destination
- dc.l GETPALETTE ;Parameters.
- dc.l .File
- .File dc.b "GAMESLIB:data/IFF.Loading",0
- even
-