Spawning objects on X and Y.

Getting Started Newbie Questions
#1

Hi all,  newbie question.

So I’m having some issues trying to find a tutorial that helps with basic spawning on X and Y coords. I’d like to use the “Tap or Touch” function and have it spawn an object on the coordinates I “Tap or Touch” on.

Does anyone know any good tutorials, or know some basic code to put me in the right direction? I just need to get the gist of it.

Thanks loads.

#2

You probably won’t find anything like that except maybe in a book (try Dr Burton’s Books).

However, here is some code doing what you described (spawning circles in this example)

local mRand = math.random local function onTouch( event ) if( event.phase == "ended" ) then local tmp = display.newCircle( event.x, event.y, 20 ) tmp:setFillColor( mRand(), mRand(), mRand() ) end return true end Runtime:addEventListener( "touch", onTouch )

I suspect you’re having trouble because you are thinking in specific high level terminology like “spawn”, instead of starting at the bottom and learning about these ideas:

  • touches
  • listeners
  • creation - Circles, rectangles, images, image rectangles 

Note: This is not an admonition, but rather encouragement not to leap too fast without first learning the principles of working with Corona.

#3

Here are some great resources to be aware of right here on the site:

#4

Thank you very much Roaming, for the great responses. That’s just what I was looking for.

#5

You probably won’t find anything like that except maybe in a book (try Dr Burton’s Books).

However, here is some code doing what you described (spawning circles in this example)

local mRand = math.random local function onTouch( event ) if( event.phase == "ended" ) then local tmp = display.newCircle( event.x, event.y, 20 ) tmp:setFillColor( mRand(), mRand(), mRand() ) end return true end Runtime:addEventListener( "touch", onTouch )

I suspect you’re having trouble because you are thinking in specific high level terminology like “spawn”, instead of starting at the bottom and learning about these ideas:

  • touches
  • listeners
  • creation - Circles, rectangles, images, image rectangles 

Note: This is not an admonition, but rather encouragement not to leap too fast without first learning the principles of working with Corona.

#6

Here are some great resources to be aware of right here on the site:

#7

Thank you very much Roaming, for the great responses. That’s just what I was looking for.