simple 2d movement ...

Blitz3D Forums/Blitz3D Beginners Area/simple 2d movement ...

GC-Martijn

(Posted 2005) [#1]

H!

Because i'm busy with a internet game I need/want some other player movement. (movement commands)

The player only can do this
up
- right
- left
down
- right
- left
right
- up
- down
left
- up
- down
and stop when all keys are up.

I send the movement options to the server,
so I know if the player is going up (uu) or up-left (ul) etc.

I changed the code so you can see what I mean.

And my question is:
"is there a smaller/better code for this?"

While Not KeyHit(1)

	;up
	If KeyDown(200) And KeyDown(208)<>1 Then
		If KeyDown(200) And KeyDown(205)<>1 And KeyDown(203)<>1 Then
			pldo$="uu"
			DebugLog pldo$
		EndIf		
		If KeyDown(205) Then
			pldo$="ur"
			DebugLog pldo$
		EndIf
		If KeyDown(203) Then
			pldo$="ul"
			DebugLog pldo$
		EndIf
	EndIf
	
	;down
	If KeyDown(208) And KeyDown(200)<>1 Then
		If KeyDown(208) And KeyDown(205)<>1 And KeyDown(203)<>1 Then
			pldo$="dd"
			DebugLog pldo$
		EndIf
		If KeyDown(205) Then
			pldo$="dr"
			DebugLog pldo$
		EndIf
		If KeyDown(203) Then
			pldo$="dl"
			DebugLog pldo$
		EndIf
	EndIf
	
	;left
	If KeyDown(203) And KeyDown(205)<>1 And KeyDown(208)<>1 And KeyDown(200)<>1 Then
		If KeyDown(203) Then
			pldo$="ll"
			DebugLog pldo$
		EndIf
	EndIf	

	;right
	If KeyDown(205) And KeyDown(203)<>1 And KeyDown(208)<>1 And KeyDown(200)<>1 Then
		If KeyDown(205) Then
			pldo$="rr"
			DebugLog pldo$
		EndIf
	EndIf	
Wend

Thanks,

Stevie G

(Posted 2005) [#2]

Here... best I can do ...

While Not KeyHit(1)

	kx = KeyDown( 205 ) - KeyDown( 203 )
	ky = KeyDown( 200 ) - KeyDown( 208 )

	If Ky <> 0 
		If Ky > 0 pldo$ = "u"
		If ky < 0 pldo$ = "d"
		If kx = 0 pldo$ = pldo$ + pldo$
		If kx > 0 pldo$ = pldo$ + "r"
		If kx < 0 pldo$ = pldo$ + "l"
	Else
		If kx > 0 pldo$ = "rr"
		If kx < 0 pldo$ = "ll"
	EndIf
	DebugLog pldo$

Wend

Hope it helps.

GC-Martijn

(Posted 2005) [#3]

That's the way I like it ;)

Thanks !

smilertoo

(Posted 2005) [#4]

If you mean smaller to reduce the data sent then just use values and add them together.

up=1
down=2
left=4
right=8

doing it this way means you only need to send 1 byte.