Mouse/TouchScreen Coordinates Tutorial

[@Majskolvenz]

Thanks, your tutorials have really helped me with both getting started with libGDX and getting a good structure for my game projects.

[@R0bit]

YAY! Now to start showing off to my friends!

[@sonic2kk]

So the *screen* co-ordinates are basically co-ordinates relative to what you can see, and *world* co-ordinates are like a global co-ordinate system?

[@ForeignGuyMike]

"what you can see" is a bit unclear to me. Screen coordinates are exactly what they sound like. If your phone is 1920x1080, then any touch will only be from (0, 0) to (1920, 1080). World coordinates are the *game* coordinates. Whatever game units you are using. The game coordinates are an infinite plane.

[@thevioletmasquerade]

Hey Mike, I'm trying to implement a Gdx.isTouched() method but can't get it to work correctly. I need the mouse input to get the coordinates from the worldCoordinates variable instead of the screenCoordinates. Any idea how I can go about doing this?

[@CGRAPHlCS]

Very helpful. Hey Mike, have you come across a way to render filled circles smoothly in libgdx? Right now, when I render filled circles in libgdx the border appears pixelated and not smooth. I've looked into anti-aliasing and filled shapes but the methods suggested don't seem to work. Any ideas? Thanks

[@ForeignGuyMike]

You're using the ShapeRenderer? As far as I know, there's really no easy, reliable way to do it. You can try drawing the shape to a texture instead, or use an antialiasing shader.

[@RoganPlant]

After using both a library and pure Java, which would you reccomend to an advanced game programmer?

[@ForeignGuyMike]

If by "pure" Java you mean everything that comes in the standard package (Swing/Java 2D/Java Sound), then I recommend moving on to an actual gaming framework. There is nothing in the standard JDK designed for gaming.

[@luizlls]

Hey Mike, can you please upload this example project?

[@ForeignGuyMike]

dl.dropboxusercontent.com/u/59779278/libgdxtutorials/MouseTutorial.rar

[@luizlls]

ForeignGuyMike thx!

[@jacquessarraffe9431]

Aye mike I just started on programing games and taking a online java course. it. Seems as if you have an idea for a game you could just make it. And I kno those skills won't just come over night but can you tell me what you did to learn all this.

[@ForeignGuyMike]

Pretty much experimenting. If I don't know how something works, I'll look up its documentation, then just mess around with it for a while and come up with ways to use it.

[@jacquessarraffe9431]

Did you take any classes or anything.

[@jacquessarraffe9431]

I've seen the games you made with libgdx and I have to say they look amazing. But I've watch your tutorials and really have No idea what going on.

[@ForeignGuyMike]

Jacques Sarraffe Game programming isn't something you should be doing if you're just starting out. It's like trying calculus when you're just learning how to add. You should really get more comfortable with Java, or programming in general, before doing this stuff.

[@jacquessarraffe9431]

OK thanks for the tips I've also had a Lil bit of experience with unity and c#. It does seem a bit easier but I'm going more for quality with my game so I will be using libgdx. I will get back to you after I finish my java course

[@ausechi]

In the new version of the lib GDX they use just OpenGL 2.0 above, but I want to use OpenGL 1.0, how can I do this?

[@ForeignGuyMike]

Try to find older versions of LibGDX. Maybe they still host those in an archive or something.

[@MuresanVladMihail]

Use version 0.9.9!

[@ausechi]

Muresan vlad mihail it's what I'm doing...

[@1123g0]

can u do a tutorial how to make a menu for game

[@ForeignGuyMike]

Nope.

[@nelisvanlaeken2053]

Nice!