I want to get the a count function whenever a balloon is popped.
The object is deleted from memory using "obj:removeSelf();"
I want a score to increment each time the balloon is removed and a touch is made using score =score +1 , but it does not work. Help please.
balloons =0
local score=0
local function removeBalloons(obj)
obj:removeSelf();
balloons = balloons - 1;
score=score+1
end
function myBalloon:touch(e)
if (timeLeft ~= false) then
if (playerReady == true) then
if (e.phase == “ended”) then
– Remove the balloons from screen and memory
removeBalloons(self);
score=score+1
end
end
end
end
myBalloon:addEventListener(“touch”, myBalloon);
Full Code:
-- Hide status bar display.setStatusBar(display.HiddenStatusBar); -- Display a background image --[[Here we are inserting a background image of clouds --]] local background = display.newImage("images/clouds.png"); -- Generate Physics Engine local physics = require("physics"); -- 1. Enable drawing mode for testing, you can use "normal", "debug" or "hybrid" physics.setDrawMode("normal") -- 2. Enable multitouch so more than 1 balloon can be touched at a time system.activate("multitouch"); -- 3. Find device display height and width \_H = display.contentHeight; \_W = display.contentWidth; -- 4. Number of balloons variable balloons = 0; -- 5. How many balloons do we start with? numBalloons = 100; -- 6. Game time in seconds that we'll count down startTime = 20; -- 7. Total amount of time totalTime = 20; -- 8. Is there any time left? timeLeft = true; -- 9. Ready to play? playerReady = false; -- 10. Generate math equation for randomization Random = math.random; -- 11. Load background music local music = audio.loadStream("sounds/music.mp3"); -- 12. Load balloon pop sound effect local balloonPop = audio.loadSound("sounds/balloonPop.mp3"); -- Create a new text field using native device font local screenText = display.newText("...Loading Balloons...", 0, 0, native.systemFont, 16\*2); screenText.xScale = 0.5 screenText.yScale = 0.5; -- Change the center point to bottom left screenText:setReferencePoint(display.BottomLeftReferencePoint); -- Place the text on screen screenText.x = \_W / 2 - 210; screenText.y = \_H - 20; -- Create a new text field to display the timer local timeText = display.newText("Time: "..startTime, 0, 0, native.systemFont, 16\*2); timeText.xScale = 0.5 timeText.yScale = 0.5; timeText:setReferencePoint(display.BottomLeftReferencePoint); timeText.x = \_W / 2; timeText.y = \_H - 20; local gameTimer; -- Did the player win or lose the game? local function gameOver(condition) -- If the player pops all of the balloons they win if (condition == "winner") then screenText.text = "Amazing!"; -- If the player pops 70 or more balloons they did okay elseif (condition == "notbad") then screenText.text = "Not too shabby." -- If the player pops less than 70 balloons they didn't do so well elseif (condition == "loser") then screenText.text = "You can do better."; end end -- Remove balloons when touched and free up the memory they once used local function removeBalloons(obj) obj:removeSelf(); -- Subtract a balloon for each pop balloons = balloons - 1; -- If time isn't up then play the game if (timeLeft ~= false) then -- If all balloons were popped if (balloons == 0) then timer.cancel(gameTimer); gameOver("winner") elseif (balloons \<= 30) then gameOver("notbad"); elseif (balloons \>=31) then gameOver("loser"); end end end local function countDown(e) -- When the game loads, the player is ready to play if (startTime == totalTime) then -- Loop background music audio.play(music, {loops =- 1}); playerReady = true; screenText.text = "Hurry!" end -- Subtract a second from start time startTime = startTime - 1; timeText.text = "Time: "..startTime; -- If remaining time is 0, then timeLeft is false if (startTime == 0) then timeLeft = false; end end -- 1. Start the physics engine physics.start() -- 2. Set gravity to be inverted physics.setGravity(0, -0.4) --[[Create "walls" on the left, right and ceiling to keep balloon on screen display.newRect(x coordinate, y coordinate, x thickness, y thickness) So the walls will be 1 pixel thick and as tall as the stage The ceiling will be 1 pixel thick and as wide as the stage --]] local leftWall = display.newRect (0, 0, 1, display.contentHeight); local rightWall = display.newRect (display.contentWidth, 0, 1, display.contentHeight); local ceiling = display.newRect (0, 0, display.contentWidth, 1); -- Add physics to the walls. They will not move so they will be "static" physics.addBody (leftWall, "static", { bounce = 0.1 } ); physics.addBody (rightWall, "static", { bounce = 0.1 } ); physics.addBody (ceiling, "static", { bounce = 0.1 } ); local function startGame() -- 3. Create a balloon, 25 pixels by 25 pixels local myBalloon = display.newImageRect("images/balloon.png", 25, 25); -- 4. Set the reference point to the center of the image myBalloon:setReferencePoint(display.CenterReferencePoint); -- 5. Generate balloons randomly on the X-coordinate myBalloon.x = Random(50, \_W-50); -- 6. Generate balloons 10 pixels off screen on the Y-Coordinate myBalloon.y = (\_H+10); -- 7. Apply physics engine to the balloons, set density, friction, bounce and radius physics.addBody(myBalloon, "dynamic", {density=0.1, friction=0.0, bounce=0.9, radius=10}); -- Allow the user to touch the balloons function myBalloon:touch(e) -- If time isn't up then play the game if (timeLeft ~= false) then -- If the player is ready to play, then allow the balloons to be popped if (playerReady == true) then if (e.phase == "ended") then -- Play pop sound audio.play(balloonPop); -- Remove the balloons from screen and memory removeBalloons(self); end end end end -- Increment the balloons variable by 1 for each balloon created balloons = balloons + 1; -- Add event listener to balloon myBalloon:addEventListener("touch", myBalloon); -- If all balloons are present, start timer for totalTime (10 sec) if (balloons == numBalloons) then gameTimer = timer.performWithDelay(1000, countDown, totalTime); else -- Make sure timer won't start until all balloons are loaded playerReady = false; end end -- 8. Create a timer for the game at 20 milliseconds, spawn balloons up to the number we set numBalloons gameTimer = timer.performWithDelay(20, startGame, numBalloons);