... The image above contains 4 UDG characters, each one using a ... multicolor in the entire Spectrum screen. In BIFROST*, the multicolor ... />
But how can you draw anything inside the multicolor region ... multicolor tile is similar to UDG characters in the ZX- ...

... if i realy want to draw fancy shapes I can just ... melborne draw. any ideas?

Side 2 has the load screen ...

I've been using the SCREEN$() function recently for reading data ... off the screen rather than taking up space ... fix for it. Instead of SCREEN$(row,col) use FN c ...
ld hl,(23675) ;HL=(UDG)
dec h
ld ...

... bicolor[/B] graphics everywhere* on screen.

In ... [*][B]Full-screen access[/B]: You can draw [B]"btiles"[/ ... B] anywhere on screen (even partially hidden outside the screen ... ENGINE is also "full-screen". Technically, perhaps it ...

I want to clear the screen before I draw my graphic elements on it. Speed is not important so I was thinking of using the rom CLS option if that is possible. Can anyone advise on how to call this command or some similar routine to clear the screen?

... /> [a-uA-U] | # udg characters
[\:.']{1,2} | ... dim
do
draw
else
elseif ... br /> print64
printat64
screen


< ...

... (DB) or 'Back Screen' to draw all the game action onto ... lot onto the main display screen. This allows me to ... />
The DB screen sits at mem 25000d and ... bytes to the DB screen and then RANDOMIZE USR ... hl, 25000 ;Start of DB Screen
ld de, 16384 ...

... $ 144 [/B] [I]This prints UDG 'A'[/I]
[B]print ... $ 145 [/B] [I] This prints UDG 'B', etc[/I]

UDG by grabbing a portion of the screen?

... ODRAW INSTRUCTIONS

MDRAW (SCREEN) OPTIONS
ENTER -SET (P ... -BORDER COLOUR
U -STORE UDG

QWEADZXC - ... COLOUR
CPS R -CLEAR SCREEN MENU
EDIT -SPRITE ... br /> 2 -STORE SPRITE FROM SCREEN AT
CURSER POSITION

... . I can get it to draw a line ,but it always ... /~micken/borderdrawing.png
 This screen also shows a second question ...

... the screen in a way that makes it easier to draw ... the top of the screen where you copy your ... was copied to the screen so that the first ... br /> is it
draw background on buffer (or just ... it)
draw sprites on buffer
copy buffer to screen

... is the best for PLOT,DRAW epics. Using it you ... to enter a vast PLOT,DRAW epic confident in your ... also brill for working out UDG's and Sprites, klutzy ... read pages of notes on screen and its much easier ... expert at doing everything on screen in which case you ...

Did games like silkworm just draw everything to the screen or did they have complicated optimisations?
and the types of games where sprites can occupy the same space,(cobra) were algorithms used to see which sprites are visible?

... AT routine to draw me a sprite to the screen. What I ... .
[code]
LD HL, UDG
LD (23675),HL
MAIN:
CALL DRAW
LD A,(INKEY)

I designed a set of UDG's that can be used ... and it would save 3 UDG's if I could simply ... I could have an on-screen option to select and rotate ... to select the pieces on screen?

Hi everyone
As you know, Screen$ doesn't recognize UDG characters.
Is there any way to solve this problem?
I want to "identify" an UGD character on screen...

Thanks

... call 3503 ; ROM routine - clears screen, opens chan 2.
; Initialise ... br /> ld a,145 ; UDG 'B' is the mushroom graphic ... 'A'.
rst 16 ; draw player.
ret
wspace ... player's y coordinate.
; UDG graphics.
blocks defb 16 ...

... call 3503 ; ROM routine - clears screen, opens chan 2.
; Initialise ... mushlp ; put mushroom on screen. ;-------this is the bit we ... 'A'.
rst 16 ; draw player.
ret
... 's y coordinate.
; UDG graphics.
blocks defb 16 ...

... /> Right, so:
10 (UDG routine to make the chessboard ... for UDG)
30 (BORDER 0, PAPER 7, draw green ... 40 (CIRCLE and DRAW commands to draw the wheel in blue ... Actually, I didn't use UDG routines at all. I ... screen, 20 was the for-loop, 30 was to draw ...

... br />
[B]-you can draw etch-a-sketchstyle.[/B]
UDG characters/ create custom Graphics using ... i belieev gives upto 96 UDG + save[/B]

[ ... , or placed on the screen. + create full screen slidshows or animations.[/B ...

... custom grid on the editor screen, like resizable sqares of let ... and white dotds on the screen. Do you remember the option ... sometimes games just draw something on the screen without using udg graphics, and ... 3 or four pointers on screen !!
Another is that ...

... br /> * Different character sets and UDG sets
---------------------------------------

screen) you can use ... UDG and you can read them in a SCREEN$. ... a UDG is placed on the screen then ... sent to the TV screen.
Bit 5: ...

... "drawtile" function which would draw a variable-sized static tile ...
Yeah, tiles are 8x8 udg characters, but there are 256 ... , what's already printed on screen also changes.
[/quote ... is inside sp_UpdateNow when the screen is drawn. Whatever the tile ...

... of tiles which are just UDG characters (up to 256 unique ... background and how quickly they draw. They all use one of ... otherwise be moved around the screen, like regular sprites are, to ...

... sp1_update" contains a single tile (udg) and colour for background. It ... to have a particular background udg to never be written to ... occupy any character cell on screen. If your display size ( ... a character cell. During sprite draw this offset is added to ...

... to the memory model. Setting UDG would be trivial, similar to ... work :-) )
By changing the UDG sysvar you can position the ... br /> eg.
90 REM draw some background characters
91 ... maskout the required characters on screen
110 PRINT "CD";CHR ...

... a fancy name for a UDG character and describe, well, ... cell, including background tile (a UDG), background colour, and an ordered ... and added to the draw list. The screen is drawn all at ... ". Once the screen update is complete, the draw list is cleared ...

... area must lie entirely on screen.

Example: suppose you ... -shifted sprites or you only draw sprites to exact horizontal character ... is a pointer to a UDG character indexed by character code ... this table to retrieve the UDG graphic address for the tile ...

... the entire screen.

"sp1_TileEntry()" associates a new UDG graphic with ... association table and the sprite draw function table.
[*]It constructs ... sprites, clear pixel buffer before draw
#define SP1_TYPE_2BYTE 0x40 // sprite ...