removeSelf() and Collision Detection

Evening all.

Another question from someone just starting out with Corona.

I've now got my player and item objects jumping around the screen, and I set up a global collisions listener to see if the player collides with any items and reward them for it.

-- score gui
local score = display.newText( "0", player.x, player.y-70, "Helvetica", 34)
 
local function onCollision(event)
        if (event.object1.name == "item" and event.object2.name == "player") then
                score.text = score.text + 100
                item:removeSelf()
        end
end
 
Runtime:addEventListener ("collision", onCollision)

Should it be like this (presuming that obj1 is the item your trying to remove)

-- score gui
local score = display.newText( "0", player.x, player.y-70, "Helvetica", 34)
 
local function onCollision(event)
        local obj1 = event.object1
        local obj2 = event.object2
 
        if (obj1.name == "item" and obj2.name == "player") then
                score.text = score.text + 100
                obj1:removeSelf()
        end
end
 
Runtime:addEventListener ("collision", onCollision)

Nope, item is the name of the thing being removed.

It actually does remove it. 100% of the time.

However, sometimes the item is removed, and the player passes through.
But every so often, say 1 in 50 times, the item is removed, but, the player object bounces off the item object for a split second before its removed.

Could the item be a sensor body ?

I'm still not sure that you got the question I was asking Danny, but, I looked up the API and read about sensor bodies and that was exactly what I was looking for.

100+ test cases now, and they all worked perfectly.

Cheers Danny.

Yeah i got the question :)

Sorry for not going into more detail in my previous post

views:1510 update：2011/10/4 17:12:07


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