EGFX · FUNCTION 31ALPHA · USE AT YOUR OWN RISK
TILE_DRAW
Draw a tile-map viewport.
Uses camera tile position and viewport dimensions; optional force redraw.
Parameters
| Name | Order | Description |
|---|---|---|
CAMERA | 8–9 | Camera tile position. |
VIEWPORT | 10–13 | Viewport position and size. |
FLAGS | 14 | Bit 0 forces redraw. |
BASIC example
Tested listing: tiles-demo.bas.
10 MODE 1:HIMEM=&2400:PROCeginit:PROCegloadsprites("SPRITES",6)
20 PROCegtileinit(4,4,3):d$="":FOR i%=0 TO 15:d$=d$+CHR$(i% MOD 8):NEXT:PROCegtileupload(0,d$)
30 x%=0:REPEAT
40 PROCegtiledraw(x%,0,0,0,20,14,0):PROCegpresent
50 x%=(x%+1) MOD 4:UNTIL INKEY(0)=81
60 END
Assembly example
JSR init_egfx
JSR begin_frame
LDA #31 : JSR eg_call
JSR present_frame
RTS