How to put an image on the screen.

[Christos]

Well, I have some problem understanding on how to put an image on the screen. Though I've edited the rapinit file to put my image there, it wouldn't work. Can anyone explain how raptor lists work? (I've done the necessary RTFM).

[+CyranoJ]

OK,

 

so, here's the BASIC:

 

100 REM IMAGE

120 CLS

200 RSETLIST(0)

210 RUPDALL(0)

300 GOTO 300

We also need to edit the _RAPINIT.S file to add the object (image) to display:

; Image

dc.l 4 ; (REPEAT COUNTER) ; Create this many objects of this type (or 1 for a single object)

dc.l is_active ; sprite_active ; sprite active flag

dc.w 20,0 ; sprite_x ; 16.16 x value to position at

dc.w 20,0 ; sprite_y ; 16.16 y value to position at

dc.w 0,0 ; sprite_xadd ; 16.16 x addition for sprite movement

dc.w 0,0 ; sprite_yadd ; 16.16 y addition for sprite movement

dc.l 320 ; sprite_width ; width of sprite (in pixels)

dc.l 200 ; sprite_height ; height of sprite (in pixels)

dc.l is_normal ; sprite_flip ; flag for mirroring data left<>right

dc.l 0 ; sprite_coffx ; x offset from center for collision box center

dc.l 0 ; sprite_coffy ; y offset from center for collision box center

dc.l 16/2 ; sprite_hbox ; width of collision box

dc.l 24/2 ; sprite_vbox ; height of collision box

dc.l BMP_IMAGE ; sprite_gfxbase ; start of bitmap data

dc.l 16 ; (BIT DEPTH) ; bitmap depth (1/2/4/8/16/24)

dc.l is_RGB ; (CRY/RGB) ; bitmap GFX type

dc.l is_trans ; (TRANSPARENCY) ; bitmap TRANS flag

dc.l 320*200*2 ; sprite_framesz ; size per frame in bytes of sprite data

dc.l 320*200 ; sprite_bytewid ; width in bytes of one line of sprite data

dc.l 0 ; sprite_animspd ; frame delay between animation changes

dc.l 0 ; sprite_maxframe ; number of frames in animation chain

dc.l ani_rept ; sprite_animloop ; repeat or play once

dc.l edge_wrap ; sprite_wrap ; wrap on screen exit, or remove

dc.l spr_inf ; sprite_timer ; frames sprite is active for (or spr_inf)

dc.l spr_linear ; sprite_track ; use 16.16 xadd/yadd or point to 16.16 x/y table

dc.l 0 ; sprite_tracktop ; pointer to loop point in track table (if used)

dc.l spr_unscale ; sprite_scaled ; flag for scaleable object

dc.l %00100000 ; sprite_scale_x ; x scale factor (if scaled)

dc.l %00100000 ; sprite_scale_y ; y scale factor (if scaled)

dc.l -1 ; sprite_was_hit ; initially flagged as not hit

dc.l -1 ; sprite_CLUT ; no_CLUT (8/16/24 bit) or CLUT (1/2/4 bit)

dc.l can_hit ; sprite_colchk ; if sprite can collide with another

dc.l cd_keep ; sprite_remhit ; flag to remove (or keep) on collision

dc.l single ; sprite_bboxlink ; single for normal bounding box, else pointer to table

dc.l 1 ; sprite_hitpoint ; Hitpoints before death

dc.l 2 ; sprite_damage ; Hitpoints deducted from target

dc.l 320*2 ; sprite_gwidth ; GFX width (of data)

and the _RAPAPP.S file to include the actual asset (the image)

BMP_IMAGE: incbin "ASSETS/GFX/LOGO.TGA"

and finally, add the asset to the auto-convert list:

;;

;; Convert List

;;

RAPTOR_autoconvert_list: dc.l BMP_IMAGE,-1

dc.l -1,-1

IMAGE.zip

RBASIC.ABS