PDF | On Aug 2, , Brian Gene Burton and others published Beginning mobile app development with Corona. Cover images were generated using Corona Simulator and represent views of apps made in this book on the Droid®, Galaxy Tab®, iPad®, and iPhone® (from. Beginning Mobile App Development with Corona. Brian Burton. Beginning Mobile App Development with Corona: Sample Brian G. Burton, Ed.D. Beginning .
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to no knowledge of Corona SDK the chance to create simple apps to become familiar with mobile application development. Think of this book as being a .. should have one that starts the movement as well. Let's call this function moveShip. Mobile App Development with Corona: Getting Started. Pages · You can begin learning mobile application development with very little. Android. Learning Mobile Application & Game Development with Corona SDK “ Beginning Mobile App Development with Corona” and contributing to several.
CenterReferencePoint ; -- 5.
Act like a Lady, Think like a man
Generate balloons randomly on the X-coordinate myBalloon. Generate balloons 10 pixels off screen on the Y-Coordinate myBalloon. Apply physics engine to the balloons, set density, friction, bounce and radius physics.
Functions in Lua are similar to methods in Objective-C. A function can be called from your main code, and you can define a function at any place in your code. But you must first define the function before you can call it — so any code that calls the function must appear after the function itself!
What just happened? Take a look at the code line-by-line: Get the ball rolling by telling the physics engine to start running. Set the horizontal gravity at 0 and the vertical gravity at The negative gravity values means that vertical gravity, instead of being applied downwards, is applied upwards. So your balloons will rise and not fall.
Beginning Mobile App Development with Corona
Set the reference point for each balloon to be the centre of the object. All positioning for balloons will be relative to the centre of the balloon. Set the x coordinate for the balloon to a random value between 50 and the screen width minus 50 pixels. Each balloon is placed randomly in the space 50 pixels in from both edges of the screen.
Apply dynamic moving physics to the balloon and assign the physics properties of friction, amount of bounce, and the radius. Create a variable named gameTimer, which after 20 milliseconds, calls the startGame function until the numBalloons variable is reached.
In this case, numBalloons is , so there will be balloons generated. You may be wondering why a radius value of 10 was chosen for your balloons.
This is where physics. Relaunch the simulator when prompted and you should see the following: Now there is a semi-transparent overlay for anything with physics applied to it, including a 10 pixel circle which completely covers the balloon.
If you were to change the radius to 50 and save the file, you would see pixel circles bouncing off of each other. Two Walls and a Ceiling Currently, when the game starts, the balloons all move up, up, up … and away, never to return! Create some boundaries to keep the balloons on the screen.
Zammetti F. Learn Corona SDK Game Development
Place the following code after the physics. They will not move so they will be "static" physics.
You want the user to pop as many balloons as they can by tapping them before the time expires. Place the following code before the physics. The removeBalloons function deletes balloons as they are popped and adds each popped balloon to the score. Since the above code just sets up the game logic, when you save your main.
The removeSelf command removes a display object from screen and releases the memory used by it, as long as there are no other references to that object. Add a countDown function that will start the background music when the game is ready to be played, and counts down the time once the game is loaded. Speaking of the startGame function, head back there and set up touch detection for each balloon so that the player can pop them by tapping on them.
In startGame, after the physics. The rest is handled by the myBalloon function.
If the time has run out, then the player should not be able to pop balloons. And if the player is able to pop balloons, it simply plays a pop noise and calls removeBalloons to handle the rest.
Take a look back at the code for clues. You added the functionality to myBalloon that listens for a user touch. If the balloon is touched, it plays a pop sound and removes the balloon from the app. Hey, wait a minute!
Note that the gameTimer variable is re-used here to create a new timer which tracks the time left in the game at 1 second milliseconds intervals.
If you want to make the game harder or easier , altering the game is very easy. You can change the number of balloons or the time by changing the following variables: -- How many balloons do we start with? Where to Go From Here?
Here is the completed source code for the tutorial.
Mobile App Development with Corona: Getting Started
Waiting on Tables Table vs. Clearing up the Confusion Tools for Tables Project Creating a Simple Table View Project Uploading Form Data Post Example 2: Closures Initialization Loop-De-Loop!
Level and Wave Control Noises Off! Suspense is Killing Me!
System Events Accelerometer Project You must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.
This site is using the Desk Mess Mirrored theme, v2. Burton's Media Group. Home Books Babylon. Beginning Mobile App Development with Corona November 17, at 9: November 23, at 4: November 23, at 5: November 30, at 4: December 7, at 7: December 7, at 9: December 14, at 4: December 15, at 6: December 21, at 4: You will receive a link to create a new password.
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Embed Script. Size px x x x x Published on June Categories: Documents Downloads: Introduction to Corona SDK: Beginner Completion Time: Corona SDK is an excellent option for any kind of mobile developer from beginner to advanced.
This tutorial will introduce you to this easy-to-use cross-platform framework and show you how to start creating content for your preferred platform. Corona-powered apps run at 30 fps in as little as k, and the graphics and animation engine fully leverages OpenGL hardware acceleration.
With Corona, you can quickly create iPhone applications in a matter of hours. Advantages As mentioned before, Corona SDK offers plenty of features that make it a very reliable way to create applications.
Some of these features are: Native Application Development: In fact, Corona needs Xcode to compile.It is a completely free SDK, making it very cost-effective. These programs have associated fees which you are responsible for. Lua In this text, the language that you will use throughout your programming experiences with Corona is Lua. After reorganizing content and continuing to develop, we are now down to 16 chapters with an additional chapter on great resources and a couple of appendices that were graciously supplied by Ansca Mobile on the Lua scripting language.
Note: One thing to remember is that semicolons are not necessary at the end of a line in Lua coding. Copyediting and formatting assistance provided by Brianna Burton http:
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