Stumped & Feeling Stupid...

MisterX b.xavier at internet.lu
Sat Nov 13 09:40:32 EST 2004


> global theXcoord, theYcoord, mapXcoord, mapYcoord, 
> lastXPosition, lastYposition on preOpenCard
>   put 550 into mapYcoord
>   put 412 into mapXcoord
>   set the loc of image "GeminiStation.jpg" to 
> mapXcoord,mapYcoord end preOpenCard

if your script is really like this 

> lastXPosition, lastYposition on preOpenCard

and not the result of a 
copy paste error then your preopencard handler is ignored
because it is not the start of the line.

The script looks fine without testing it. Can you furnish the
stack ;)??

X

> -----Original Message-----
> From: use-revolution-bounces at lists.runrev.com 
> [mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of 
> Judy Perry
> Sent: Friday, November 12, 2004 22:30
> To: How to use Revolution
> Subject: Stumped & Feeling Stupid...
> 
> I'm trying to create a simple sidescroller game example.  I 
> have a stack containing a single card containing two images:
> 
> (1) "map" image that is larger than card window (it's a 
> starcraft map).
> (2) animated gif of player/critter that can be moved about 
> screen using the arrow keys.
> 
> The map is more or less scrollable by using global variables 
> to reset its position when the critter intersects with 
> transparent buttons on the card's edges (incomplete but 
> working acceptably so far). The location of the critter is 
> also kept via global variables.
> 
> Among other things, I'm trying to test for the critter 
> hitting an obstacle such that s/he/it can't "go" certain 
> places (which I'll call
> "Obstacle1.gif")
> 
> I'm trying to keep track of the lastXposition and 
> lastYposition via global variables but it doesn't seem to be 
> working in terms of constraining the critter's movement; I've 
> checked the variable watcher and, indeed, the globals for 
> lastXposition and lastYposition aren't changing in value, but 
> the critter's location is, even though it is set to 
> lastXposition,lastYposition.
> 
> Any ideas?  Script is below...
> 
> Thank you for any ideas anyone can offer!
> 
> Judy
> 
> global theXcoord, theYcoord, mapXcoord, mapYcoord, 
> lastXPosition, lastYposition on preOpenCard
>   put 550 into mapYcoord
>   put 412 into mapXcoord
>   set the loc of image "GeminiStation.jpg" to 
> mapXcoord,mapYcoord end preOpenCard
> 
> 
> on openCard
>   put "80" into theXcoord
>   put "80" into lastXposition
>   put "155" into theYcoord
>   put "155" into lastYposition
>   set the loc of image "Lurker.gif" to theXcoord,theYcoord
> 
> end openCard
> 
> on arrowKey tKey
>   switch tKey
>   case "left"
>     subtract "7" from theXcoord
>    put (theXcoord + 7) into lastXposition
>     break
>   case "right"
>     add 7 to theXcoord
>     put (theXcoord - 7) into lastXposition
>     break
>   case "up"
>     subtract 7 from theYcoord
>     put (theYcoord + 7) into lastYposition
>     break
>   case "down"
>     add 7 to theYcoord
>     put (theYcoord - 7) into lastYposition
>     break
>   end switch
> obstacleDetect
>   set the loc of image "Lurker.gif" to theXcoord,theYcoord
>    edgeDetect
> 
> end arrowKey
> 
> on edgeDetect
>   if the intersect (image "Lurker.gif",button "RightEdge")  then
>     subtract 13 from mapXCoord
>     set the loc of image "GeminiStation.jpg" to mapXcoord,mapYcoord
>   end if
>   if the intersect (image "Lurker.gif",button "BottomEdge")  then
>     subtract 13 from mapYcoord
>     set the loc of image "GeminiStation.jpg" to mapXcoord,mapYcoord
>   end if
>   if the intersect (image "Lurker.gif",button "Corner")  then
>     subtract 13 from mapXcoord
>     subtract 13 from mapYcoord
>     set the loc of image "GeminiStation.jpg" to mapXcoord,mapYcoord
>   end if
> 
> 
> end edgeDetect
> 
> on obstacleDetect
>   --repeat for i = 1 to 10
>     if the intersect (image "Lurker.gif",image "Obstacle1.gif")  then
>       beep
>     set the loc of image "Lurker.gif" to lastXposition,lastYposition
>   end if
> 
> end obstacleDetect
> 
> 
> 
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