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elimann Calculating status...

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set spawn points for each sprite?

Apr 14, 2012 7:56 AM

heres my dilema

i currently have 5 sprites and 5 different set co ordinates for each one to spawn into with individual behaviour scripts, however i want each sprite to spawn into one of the set co ordinate without more than one of them spawning into the same point.

so eventually each sprite will spawn into a random set co ordinate

so something like

pRandomStartingLoc = (200,100) (300,100) (400,100) so each sprite spawns into only one set of cordinates without more than one spawning into the same one

1411 Views 18 Replies Latest reply: Production Monkey, Apr 20, 2012 6:05 AM

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1. Production Monkey,

Apr 14, 2012 8:25 AM in reply to elimann

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You want something like the following:

-- Random Set behavior

property pSetNum
property pMySet

On GetPropertyDescriptionList me
Props = [:]
Props[#pSetNum] = [#default:#1, #format:#integer, #Range:[#min:1, #max:5], #comment:"Choose a set."]

return Props
end GetPropertyDescriptionList

on beginSprite me
Case pSetNum of
    1: pMySet = [point(200,100), point(300,100), point(400,100)]
    2: pMySet = [point(200,100), point(300,100), point(400,100)]
    3: pMySet = [point(200,100), point(300,100), point(400,100)]
    4: pMySet = [point(200,100), point(300,100), point(400,100)]
    5: pMySet = [point(200,100), point(300,100), point(400,100)]
end case

put pMySet
end beginSprite

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2. elimann,

Apr 14, 2012 9:20 AM in reply to Production Monkey

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would i use this code for each sprite?

i tried the above code on my sprite but they didnt spawn at any of them points?

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3. Production Monkey,

Apr 14, 2012 9:24 AM in reply to elimann

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Yes you would use one behavior for all five sprites.

You need to modify the code I wrote and add it to your behavior. And, of course each "pMySet" property in the case statement would be set to a different list of points.

The general idea is that if a set of sprites all have the same behavior but some of their properties need to be set to different values, then you use the " GetPropertyDescriptionList()" handler to set those differenct values.

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4. elimann,

Apr 14, 2012 9:46 AM in reply to Production Monkey

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it still didnt work, i put the code in a new behaviour as a test to see if they would spawn at different points but nothing is happening to my sprite

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5. Production Monkey,

Apr 14, 2012 9:52 AM in reply to elimann

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The code I posted is Not complete. You need to write the "spawning" code. I only show how to pick a different set of points for each sprite.

If your spawing code continues to not work, post your code so we can see what is not working.

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6. elimann,

Apr 14, 2012 9:57 AM in reply to elimann

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what kind of "spawning code" before my behaviour just assigned a certain co ordinate to each sprite

eg

property ch
on beginSprite me
ch = me.spriteNum

start_x = 100
start_y = 284
sprite(ch).locH = start_x
sprite(ch).locV = start_y

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7. Production Monkey,

Apr 14, 2012 10:11 AM in reply to elimann

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I thought perhaps you were using some variation of the code Mister MUX wrote.

Here's a more complete version:

-- Random Set behavior

property pSetNum
property pMySet
property pSp
property pStartLoc

On GetBehaviorDescription me
return "Sets sprite to a random location based off a predefined set."
end GetBehaviorDescription

On GetPropertyDescriptionList me
Props = [:]
Props[#pSetNum] = [#default:#1, #format:#integer, #Range:[#min:1, #max:5], #comment:"Choose a set."]
return Props
end GetPropertyDescriptionList

on beginSprite me
pSp = Sprite(me.spriteNum)

-- get my location choice set
Case pSetNum of
      -- *** Change these value to what you want *****
    1: pMySet = [point(200,100), point(300,100), point(400,100)]
    2: pMySet = [point(100,200), point(500,105)]
    3: pMySet = [point(50,70), point(478,387)]
    4: pMySet = [point(400,500), point(623,245)]
    5: pMySet = [point(600,400), point(284,470)]
end case

pSp.loc = pMySet[random(pMySet.count)]   -- set my location
pStartLoc = pSp.loc -- store current location in case you want to return to it
end beginSprite

on goToStartLoc me
pSp.loc = pStartLoc
end

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8. elimann,

Apr 14, 2012 10:22 AM in reply to Production Monkey

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thanks this worked for the spawning however they can still spawn into the same co ordinates?

eg i tried with 2 sprites

1: pMySet = [point(100,200), point(500,105)]

2: pMySet = [point(100,200), point(500,105)]

however set 1 and set 2 sprites still sometimes spawn into the same co ordinate? i want only one sprite in one co ordinate at a time

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9. Production Monkey,

Apr 14, 2012 10:36 AM in reply to elimann

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I'm not sure what you want. Is this closer?

-- Random Set behavior

property pPosNum
property pSp
property pStartLoc

On GetBehaviorDescription me
return "Sets sprite to a random location based off a predefined set."
end GetBehaviorDescription

On GetPropertyDescriptionList me
Props = [:]
Props[#pPosNum] = [#default:#1, #format:#integer, #Range:[#min:1, #max:5], #comment:"Choose a set."]
return Props
end GetPropertyDescriptionList

on beginSprite me
pSp = Sprite(me.spriteNum)
pSp.loc = [point(200,100), point(300,100), point(400,100), point(500,100), point(600,100)][pPosNum] -- set my location
pStartLoc = pSp.loc -- store current location in case you want to return to it
end beginSprite

on goToStartLoc me
pSp.loc = pStartLoc
end

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10. elimann,

Apr 14, 2012 10:42 AM in reply to Production Monkey

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for example if i have 2 objects

object 1 can spawn at (100,100) or (200,200)
object 2 can spawn at (100,100) or (200,200)

if object 1 spawns at (100,100) then object 2 must spawn at (200,200) and vice versa

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11. Production Monkey,

Apr 14, 2012 11:02 AM in reply to elimann

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Okay fourth time may be the charm.

This behavior contains a Single Locations list that is global to all sprites with this behavior attached. Each sprite picks a random loc from the list and then deletes that value from the list so that no other sprite can use it.

Note: This uses some advanced Lingo, but you should only need to replace the point values in the list of point values.

-- Random Set behavior

property pSp   -- this sprite
property pStartLoc -- this sprites location at beginsprite

-- global/static behavior property
property curLocs -- list of sprite locations used by ALL sprites with this behavior attached

on beginSprite me
-- define our quasi global locations list if it is not defined or is empty
if me.script.curLocs.voidP OR me.script.curLocs = [] then
    me.script.curLocs = [point(200,100), point(300,100), point(400,100), point(500,100), point(600,100)] -- Define Sprite Locs Here
end if

Locs = me.script.curLocs
pSp = Sprite(me.spriteNum)
pSp.loc = Locs[random(Locs.count)]   -- set my location to random point from list
Locs.deleteOne(pSp.loc) -- remove this Loc from list so that no other sprite can use it.
pStartLoc = pSp.loc -- store current location in case you want to return to it

-- debug code. Check message window
put "Sprite " & me.spriteNum & " is at location " & pSp.loc
end beginSprite

on goToStartLoc me
pSp.loc = pStartLoc
end

on endSprite me
me.script.curLocs = void
end

on reset me
me.endSprite()
me.beginSprite()
end

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12. elimann,

Apr 14, 2012 11:22 AM in reply to Production Monkey

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tried this with 2 objects using points [point(200,100), point(300,100)]

didnt work again, the objects were able to spawn at the same co ordinates

eg object 1 and object 2 both spawned at 200,100 when only one of them should have, then the other should have spawned at 300,100

EDIT IGNORE IT WORKED

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13. elimann,

Apr 14, 2012 11:33 AM in reply to Production Monkey

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just to add, how would i restore the position of a given sprite in relation to this code?

would i use pStartLoc?

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14. Production Monkey,

Apr 14, 2012 11:46 AM in reply to elimann

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pStartLoc holds the starting location point and you can use that to modify the code, or you can just call the goToStartLoc() handler. As in:

sprite(5).goToStartLoc()

sendAllSprites(#goToStartLoc)

Delete the "reset()" handler above. It will not work correctly. I would delete it from the forum but the forum won't let me at the moment.

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15. elimann,

Apr 18, 2012 9:34 AM in reply to Production Monkey

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I used the code above "sprite(5)goToStartLoc()" but changed the 5 to ch so I can have a universal code for all the cast members I am using, I used it to try make them respawn but they all respawned back onto the random coordinate it was assigned to i.e all to (300,100). I want it so a member who was at (400,200) will return to that exact coordinate and another member for example at (600,400) with return to that exact coordinate.

Any help will be appreciated.

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16. Production Monkey,

Apr 18, 2012 6:15 PM in reply to elimann

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sendAllSprites(#goToStartLoc)

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17. elimann,

Apr 18, 2012 6:42 PM in reply to Production Monkey

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sendAllSprites(#goToStartLoc)

this just sent all the sprites back to one random co ordinate, i want each sprite to return back to its each individual random cordinate that we used in the example code above

eg using your code before

me.script.curLocs = [point(200,100), point(300,100)]

if sprite 1 spawns at (200,100), sprite 2 spawns at (300,100). im creating a dragging game so if i drag the sprite 1 to a wrong location i want sprite 1 to return back to (200,100), however as you know sprite 1 could also spawn at (300,100) next time. so basically i want whatever random co cordinate the sprite spawns at the start, for it to return to that same given co cordinate if a given action occurs

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18. Production Monkey,

Apr 20, 2012 6:05 AM in reply to elimann

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The code I posted works exactly the way you want it to work. Each sprite returns to the random location that was picked on beginSprite. If it does not do that then you perhaps changed some code or have another behavior attached to the sprites that is causing your problem.

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Director Lingo

set spawn points for each sprite?

Apr 14, 2012 7:56 AM

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