Hi guys,
First of all i am a newbie of Corona and non-programmer. I read your discussions & corona’s resources carefully. So i decided to make a game of checkers. i did some basic stuff like background image drag and drop image etc.
I just need your help to correct the code purged. For example,
i have StartDrag functionality copied and reedited from Corona’s example code of “Drag Platform”. Can you tell me what is unnecssary on this code as physics i try to make a simple drag and drop 2d overhead object game … Please help me to eliminate. Thank you!
Here is the code
local physics = require("physics")
physics.start()
display.setStatusBar( display.HiddenStatusBar )
-- A basic function for dragging physics objects
local function startDrag( event )
local t = event.target
local phase = event.phase
if "began" == phase then
display.getCurrentStage():setFocus( t )
t.isFocus = true
-- Store initial position
t.x0 = event.x - t.x
t.y0 = event.y - t.y
-- Make body type temporarily "kinematic" (to avoid gravitional forces)
event.target.bodyType = "kinematic"
-- Stop current motion, if any
event.target:setLinearVelocity( 0, 0 )
event.target.angularVelocity = 0
elseif t.isFocus then
if "moved" == phase then
t.x = event.x - t.x0
t.y = event.y - t.y0
elseif "ended" == phase or "cancelled" == phase then
display.getCurrentStage():setFocus( nil )
t.isFocus = false
-- Switch body type back to "dynamic", unless we've marked this sprite as a platform
if ( not event.target.isPlatform ) then
event.target.bodyType = "dynamic"
end
end
end
-- Stop further propagation of touch event!
return true
end
local background = display.newImage( "game-board.png", true )
background.x = display.contentWidth / 2
background.y = display.contentHeight / 2
local piyon1 = display.newImage( "piyon.png" )
piyon1.x = 80; piyon1.y = 200
physics.addBody( piyon1, "kinematic", { friction=0.7 } )
piyon1.isPlatform = true -- custom flag, used in drag function above
-- Add touch event listeners to objects
piyon1:addEventListener( "touch", startDrag ) Best Regards,
Ilker OGUZ [import]uid: 34788 topic_id: 7870 reply_id: 307870[/import]