rotate sprite - GameCreators Forum

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Fa1con

16

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Joined: 20th Aug 2007

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Posted: 28th Oct 2007 00:09

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hi i was just wondering i can make my sprite rotate when i press a key but how do i make him keep rotating if i hold down my key?

heres my code:

+ Code Snippet

IF InKey$() = "d" THEN ROTATE SPRITE 1,10
IF InKey$() = "a" THEN  ROTATE SPRITE 1, -10

thanks in advance,

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MonoCoder

18

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Joined: 4th Dec 2005

Location: england

Posted: 28th Oct 2007 01:31 Edited at: 28th Oct 2007 01:45

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+ Code Snippet

if inkey$() = "a" then rotate sprite 1, sprite angle( 1 ) - 10
if inkey$() = "d" then rotate sprite 1, sprite angle( 1 ) + 10

(10's a bit much though, methinks)

Or, to go one better:

+ Code Snippet

if keystate( 30 ) = 1 then rotate sprite 1, wrapvalue( sprite angle( 1 ) - 10 )
if keystate( 32 ) = 1 then rotate sprite 1, wrapvalue( sprite angle( 1 ) + 10 )

(Don't just jump forth with this code without looking up keystate)

Or alternatively:

+ Code Snippet

a# = sprite angle( 1 )
if keystate( 30 ) = 1 then a# = wrapvalue( a# - 10 )
if keystate( 32 ) = 1 then a# = wrapvalue( a# + 10 )
rotate sprite 1, a#

(storing the angle in a# and updating at the end, your lines are shorter and easier)

And not forgetting:

+ Code Snippet

b# = ( keystate( 32 ) - keystate( 30 ) ) * 10
rotate sprite 1, wrapvalue( sprite angle( 1 ) + b# )

(b# sorts out how far in which direction)

EBA; UI; Mario Land Ripoff.
Every time you post a joke in the form of code, mace yourself.

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Fa1con

16

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Joined: 20th Aug 2007

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Posted: 28th Oct 2007 05:52

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That was exactly what i wanted. thank you so much

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2D All the way! / rotate sprite