Hello,
I am very newbie to Corona and I am trying to create a bouncing ball game. For that I need to draw a rectangle towards the sides of the screen - ie, want to create a border to the screen - and the ball will be following the gravity and bounce a little and will change its direction up on user’s touches.
I want to know how to create a rectangle exactly at the screen border. I am getting confusion about the width and height of the screen. Also when I set the height & width in the build via config.lua, the size of the ball got reduced and still the rectangle didn’t come up clearly. Not sure what is happening.
Anybody please help…
This is my config.lua contains:
application = {
content = {
width = 768,
height = 1280,
--scale = “letterBox”,
fps = 60,
--[[
imageSuffix = {
["@2x"] = 2,
}
--]]
}
}
This is what my main.lua contains:
local physics = require(“physics”)
physics.start()
print( "Model = "…system.getInfo( “model” ))
–[[local space = display.newRect(160, 160, 1500, 1300)–, 300, 500 )
space.strokeWidth = 3
space:setFillColor( 0.2 )
space:setStrokeColor( 1, 1, 0 )
physics.addBody( space, “static”, {density=1, friction=0, bounce=0} )
]]
local ball = display.newImage(“ball.png”)
ball.x=160; ball.y=150; ball.rotation=1;
physics.addBody(ball, {density=1, friction=0.5, bounce=.5})
count=0
local myGrav = {}
local dir = {“up”, “down”, “left”, “right”}
myGrav[1]={ 0, -1} – N
myGrav[2]={ 1, 0} – E
myGrav[3]={ 0, 1} – S
myGrav[4]={-1, 0} – W
myGrav[5]={ 1, -1} – NE
myGrav[6]={ 1, 1} – SE
myGrav[7]={-1, -1} – NW
myGrav[8]={-1, 1} – SW
local function changeDirection( event )
if (event.phase == “began”) then
local count1 = math.random(#myGrav)
print(“value cnt=”…count…" and cnt1="…count1)
if (count1 == count) then
repeat
count1 = math.random(#myGrav)
until (count ~= count1)
end
count=count1
local xGrav = myGrav[count][1]; yGrav=myGrav[count][2]
print (“cnt=”…count…",xGrav="…xGrav…", yGrav="…yGrav)
ball:setLinearVelocity( xGrav*120, yGrav*120)
physics.setGravity( xGrav, yGrav)
end
return true
end
– space:addEventListener(“touch”, changeDirection)
NOTE:
The above print will display “Model = Droid” and a ball will be drawn which will fall freely down (which is fine). However if I uncomment whatever commented above, a yellow line comes at around two third part of the screen and the ball goes upwards. My plan is whenever the user touches the bottom part of the screen, the balls direction should change. Pls help me!
