Collision Detection still has to be implemented, yes.  And I agree about the rectangle border. 

Also, if a building can't be placed in a particular spot, you will see inverse colors...aka a black filled rectangle with a white outline of the building.  To save space and processing power, I'm not going to do something like Starcraft where you see "red" squares for the particular tiles getting in the way of the building...rather if even a single tile is in the way of the building the whole building will change color.

I'm not adding any extremely dark terrain tiles.  Maybe dark sky, but that's it.  Dark terrain tiles will prevent some of the graphics from being seen well.

The ideas for the rectangle and how to tell if its setable or not are good. Another idea would be to make the line dotted when you can't place it or something, just a thought.

I haven't tested this yet but it looks amazing

I have no idea why the scrolling speed isn't consistent (I did notice that), but we're optimizing--or going to be optimizing--the drawing for the buildings, since we hope to have 24 on screen at greatest.

Here's a new update!  This will be my last one for a while, but not because of homework; it's because my next goal on this project requires a lot of time:

1. Make this into two app pages (For those of you who want to risk putting this on the calculator without filing any lawsuits, this is important: Future builds, not including this one, will take TWICE AS MUCH SPACE on your calculator, as well as a decent amount of RAM.  The RAM will be emptied when the program exits, but it will take somewhere around 10-15 kbs of ram until futher progress.  Please don't complain, rather run further builds on an emulator unless you're willing to spare the space.)
2. Optimize
3. Add the ships!

The "Friendly" at the bottom of the info bar means the structure belongs to you or your teammate.  If you see the word "enemy", that means it's an enemy structure.  We're doing it this way to save space required for colored buildings.

Special thanks to Joe Pemberton for his routine that converts binary to text, I needed that to display the HP values

* Builderboy closes mpar007's mouth *

* Builderboy accidentally lets his hang as well *

:O the amount that this screenie rocks my socks cannot be expressed in mere text.  Or rather i would need several pages and several hundred exclamation marks in order to express myself.  For some reason i keep finding myself in this situation more and more, so i have decided to substitute with a:

You did and awesomely pwnsome job

wow awesome! I like the part where you see the building info at the bottom. Question, is building time/delay gonna be implemented soon? (for example if it takes a few seconds to build a factory)

Also I don't mind the space it takes, even if it takes 10 pages of app and all RAM (unless it's like Gemini where you need to delete everything else from archive to clear the VAT )

Yes, we'll have building delay for construction...and you will be able to see the building progress when you highlight it.  It won't be a bar, but you will see the HP increasing little by little. 

In this case, when a building is constructing, the graphic will appear as a foundation with a wrench on it.  Since we need to conserve space, we're not going to be able to do what Starcraft does and display parts of the building that have been made.

As for RAM, we're going to make the amount reasonable so users don't have to worry about the VAT.  Plus, we're going to make a version where ti-84+ users (or Ti-83+ silver edition users) will have the data stored in the extra 96 KB ram.  The reason we're using so much ram is for processing power...in the case of a multi-page application, it's faster to access data from ram than it is to access data from another page.