Isometric Game Design.

[tom_mai78101]

@BurntPizza

Thanks, I do it fairly often. GifCam is excellent if you’re on windows.

Awesome. I usually use OpenBroadcaster Software, but this program is even more easier to use. Hello, GFYCAT.

[BurntPizza]

Also, I’d like to point out a much better way of transforming the mouse coordinates: using an OrthographicCamera

(rewrite of beginning of code from above)

Vector3 mv = camera.unproject(new Vector3().add(Gdx.input.getX(), Gdx.input.getY(), 0));

float mx = mv.x;
float my = mv.y;
		
// fixed the rounding on these for negative coords
int worldX = (int) Math.floor((mx / (TILE_WIDTH / 2) + my / (TILE_HEIGHT / 2)) / 2 - .5f);
int worldY = (int) Math.floor((my / (TILE_HEIGHT / 2) - mx / (TILE_WIDTH / 2)) / 2 + .5f);

<snip>

[Cero]

@CTucker1327

@LiquidNitrogen

as for the y-0-bottom thing, if you dont like that, just do your mouse: y = screenHeight - y. thatll flip it.

I’ve been doing Gdx.graphics.getHeight() - Gdx.input.getY() to determine the flipped Y value, that’s good enough.
But I still can’t get these calculations right.

I even wrote it in Java2D (Took less than ten minutes) and still can’t do it that way using the example I was given.

A lot of people only use y-down in libgdx. I use it exclusively. No need to change your calculations. Libgdx can be set to y-down with Camera.setOrtho(true)

[trollwarrior1]

Thanks for this thread guyz

I was struggling to invent my isometric game model and gave up after few days. Now I have something basic in just few minutes

[CTucker1327]

@BurntPizza

Just did it in libGDX:

http://i.imgur.com/xn9tpSm.gif

Render code: (tile is the instanced Sprite)

float mx = Gdx.input.getX();
float my = Gdx.input.getY();

my = Gdx.graphics.getHeight() - 1 - my; // invert y-axis

mx -= Gdx.graphics.getWidth() / 2;  // center it
my -= Gdx.graphics.getHeight() / 2;

// these are the world coords of the mouse
int worldX = (int) ((mx / (TILE_WIDTH / 2) + my / (TILE_HEIGHT / 2)) / 2 - .5f);
int worldY = (int) ((my / (TILE_HEIGHT / 2) - mx / (TILE_WIDTH / 2)) / 2 + .5f);

for (int y = 0; y < tiles.length; y++) {
	for (int x = 0; x < tiles[y].length; x++) {
		
		if (x == worldX && y == worldY)
			tile.setColor(1, 0, 0, 1);
		else
			tile.setColor(.5f, .5f, .5f, 1);
		
		float screenX = (x - y) * (TILE_WIDTH / 2);
		float screenY = (x + y) * (TILE_HEIGHT / 2);
		
		tile.setPosition(screenX, screenY);
		tile.draw(batch);
	}
}

NOW I SEE WHAT THE PROBLEM WAS.
I’m still using standard orthographic to get the hang of everything before doing all of the changes.
I was trying to use your Isometric code to get the position on a orthographic map and it was confusing me

[quote]Sorry, you can’t repeat a karma action without waiting 1 hours.
[/quote]

[CTucker1327]

Also, I’d like to add, because of the resources you gave me (and a good nights rest of programming in my sleep), I woke up and I currently have a working tile-system that uses a fog-of-war type setting. (I implemented it just to make sure I understood, but I removed it already). I’m currently working on implementing A* Pathfinding for my player as I plan to make this a basic tile-based RPG.

(Similar to how fire emblem used to be with the movements.)

[tom_mai78101]

@CTucker1327

Also, I’d like to add, because of the resources you gave me (and a good nights rest of programming in my sleep), I woke up and I currently have a working tile-system that uses a fog-of-war type setting. (I implemented it just to make sure I understood, but I removed it already). I’m currently working on implementing A* Pathfinding for my player as I plan to make this a basic tile-based RPG.

(Similar to how fire emblem used to be with the movements.)

While you’re at it, since you’ve mentioned that resources on how to make isometric tile game is “hard” to find online, why not make a new resource (tutorial, etc.) and publish it via Java-Gaming.org’s latest “Article” feature?

It would not only be a valuable experience in understanding how the isometric tiles work, but also you have something to show to the world of your findings.

[CTucker1327]

I will be doing so once I finish a game and it works properly.