Hi Again! So in this tutorial we will be implementing towers with splash damage, per-tower upgrades, and creep army upgrades, but before we begin that it’s time to get us ready for these upgrades.
Open the source code and find the files baseAttributes.h and .m. add these files to your project class folder, open them and take a look inside.
Ok, so there are a few variables in here which may be new or unexpected, however if they are not immediately obvious we will be using all these variables in the near future. The main categories of variables are, base health and money variables, Machine Gun variables, Freeze tower variables, Cannon tower variables and Creep variables.
As always – Source code AND download after the break
Continue reading ‘How to Build a Tower Defense Game for the iPhone – Part 8B – Tower Powers’
By
iPhone Game Tutor | Published on
February 12, 2012 in
Advanced, Cocos2d and Tower Defense.
Tags: actionWithTarget, addChild, addObject, CCLabel, CCSprite, CGRectContainsPoint, CGRectMake, Download, iphone, source, source code, tower defense, tower defense game, tutorial, Tutorials.
Ok, so a few issues have been raised over the course of this tutorial series and I have tried to answer them as we go in the comments section. However I feel that we could do with a good clean up of our code. In this tutorial we will be doing a little spring cleaning of the code and preparing for future improvements such as, Splash damage tower, Upgrading towers (real time), Upgrading/Personalizing army stats (between rounds).
Firstly, problem solving:
After downloading the source code, the first thing that anyone with a developers license should see is that when you run the game those pesky lines / tile artifact issues have been solved. This was done by a small edit to the file CCSprite.m, big thank you to DreemLife for your efforts with sorting out this issue. If you are experiencing those tile artifacts in this project, the previous tutorials, or for any other project, then replace your CCsprite.m file with the one from the source code in this project.
Tower shenanigans:
Sometimes after a Creep has been removed, a Tower will send a projectile towards (0,0). This is because we have removed the towers target, without telling it not to shoot. Simply add the following to tower.m -> FinishedFiring method. (This will need to be done for all Tower classes)
Continue reading ‘How to Build a Tower Defense Game for the iPhone – Part 8 – Some early spring cleaning’
Hello, and welcome to part 7 of the Tower Defense Tutorial Series. – Money and Health!
In this tutorial we will incorporate “money” into the game so that towers cost the player, and the amount of money available will slowly increase over time. We shall also be incorporating base health bar into the game so we can ultimately have a game over. This particular tutorial focuses primarily on implementing dynamic labels and images, and the game logic behind them, as part of the gameHUD.
When adding labels to gameHUD.m the first thing we need to do is to decide upon what we want to display, in this case; Money count, abase health label and a base health bar, a wave count, and the prices of each tower.
Source code after the break…
Continue reading ‘How to Build a Tower Defense Game for the iPhone – Part 7 – Money and Health’
By
Aiden Fry | Published on
January 18, 2012 in
Advanced, Cocos2d and Tower Defense.
Tags: cocos2d, Download, freeze towers, ice projectiles, programming, source code, tower defense, tower defense game, tower powers, tutorial.
Welcome back to the Tower Defense Tutorial Series! Once again I am assuming that you have read the previous 5 parts of this tutorial and are happy with the content covered in them.
In this Tutorial, we will be incorporating a new tower type into our game, this will give you the knowledge to then continue on and make/implement your own towers types. The tower type which we will be incorporating is a freeze tower, this tower will shoot Ice projectiles at a creep which will freeze it in place for a period of time, before the creep then continues on its journey.
Source code after the break!
Continue reading ‘How To Build a Tower Defense Game for the iPhone – Part 6 – Tower Powers’
And we are back! Well, wasn’t that fun, we now have a multiple wave game, which we can program to increase in difficulty as we go along. However, there is still one thing nagging at me….. We still have no real control over how many creeps of each type are spawned in a wave, what if we wanted one wave to be completely made up of Red creeps, or Green Creeps. There are a few ways to do this, but I will explain the way that I did it.
Before we get into it, you’ll find things much easier to follow if you’ve already looked at Part5a of this tutorial series – So go there and come back… don’t worry we’ll wait.
Source code after the break…
Continue reading ‘How To Build a Tower Defense Game for the iPhone – Part 5b – More Wave Control’
[Editor's Note: One of our readers spoke up and decided to help us finish off this series of tutorials. Many thanks to Aiden Fry for stepping up to the plate!]
Welcome to the latest edition of the Tower Defense Tutorial. This is just the start of the long awaited renewal of the Tower Defense Tutorials. I (like many of you I am sure), have been following this particular tutorial series with interest, and was slightly downcast when I realized that part 4 was the last to be released. So hear me now, I vow to take up the challenge and by the end of these tutorials we will have a fully working game!
Yours, Aiden.
[Editor's Note: We are also very happy that Aiden has taken up the challenge as well!]
The Tower Defense Tutorial Part 5a – Multiple Waves!
A Quick Look Back:
I will assume that all of you have been following the tutorial series found here – part 1, part 2, part 3, part 4 – and are mostly OK with what has gone before, however it is good just to mention a few key things about what has already taken place.
- We have some creeps that go around a set path.
- We can place towers around the path.
- Towers fire at the nearest Creep.
- Creeps have Hp, and when HP is 0 (due to tower projectiles) the creeps “die” and are removed from the game.
- At the moment there is only one “Wave” of Creeps.
Aims of this Tutorial:
- Creating Multiple waves of Creeps.
- Defining how many Creeps of each type (red/green) per wave.
Source code after the break…
Continue reading ‘How To Build a Tower Defense Game for the iPhone – Part 5a – Multiple Waves’
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Hi Again! So in this tutorial we will be implementing towers with splash damage, per-tower upgrades, and creep army upgrades, but before we begin that it’s time to get us ready for these upgrades.
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