Some questions (screenshots, pixels, free drawing)

kontinyu

Okay
I have found a game idea. But i need to set my mind about development steps.
So the main game idea is 2 players painting (drawing) on screen. so they will try to paint more than each other.
I couldn't found any example about freely drawing on screen (without physics.)
But after that i need to calculate at the end of the game who has painted most of the screen?
only idea i got so far is that -if it's possible with gideros- i should take a screenshot at the end of the game. and then look at all pixels one by one. get their colors and count them.
So is it possible?
Or can anyone point me to another direction?

techdojo

There are two ways you can do this,
The first would be to use render to texture (which doesn't exist yet) where by you fill pixels directly in a texture which is the size of the screen, you can then do a simple check to see how much of each colour exists.

Alternatively - you could track multiple touches and create a "Shape" for each player, which is dynamically updated each frame (using the :lineTo() method), you'd then have to analyse the shape at the end of the game to see who's shape was the biggest.

kontinyu

But they will try to paint -over- each others shape so there will be more than 1 shape for each player. and can you explain what you meant by "analyse" ?
sorry to hear that the first function is not availeble.

techdojo

I meant work out the surface area covered by each shape.
You can dynamically add to a shape as you play the game - or you could keep a list of all shapes created by each player.

unlying

I couldn't found any example about freely drawing on screen (without physics.)

Look at gesture recognition
http://www.giderosmobile.com/forum/discussion/comment/5751

kontinyu

I meant work out the surface area covered by each shape.
You can dynamically add to a shape as you play the game - or you could keep a list of all shapes created by each player.

well thx for help. i will learn about shapes and surface areas than be back with more questions i think

techdojo

No worries...

ar2rsawseen

While you are there, make it multiplayer game
http://www.giderosmobile.com/forum/discussion/1135/mobile-server#Item_10

kontinyu

While you are there, make it multiplayer game
http://www.giderosmobile.com/forum/discussion/1135/mobile-server#Item_10

my game is already lagging on my p7500 galaxy tab. i don't think i can manage to make it multiplayer with that kind of wasted resources
i'm a horrible programmer.
now let me go, i will cry at somewhere...