Question

SpriteBatch batcher = new SpriteBatch();
batcher.draw(TextureRegion region,
             float x,
             float y,
             float originX,
             float originY,
             float width,
             float height,
             float scaleX,
             float scaleY,
             float rotation)

What is the meaning of originX, originY, scaleX, scaleY, rotation? Also can you please give me an example of their use?

Answer 1

Why don’t you look into docs ?

As stated in docs, origin is bottom left corner, originX, originY are offsets from this origin.
For example if you want object rotate around his center, you will do this.

originX = width/2;
originY = height/2;

By specifing scaleX, scaleY, you scale the image, if you want to make Sprite 2x larger, you will set both scaleX and scaleY to number 2.

rotation specifies rotation around origin in degrees.

This code snippet draws texture rotated by 90 degrees around its center

SpriteBatch batch = new SpriteBatch();
Texture texture = new Texture(Gdx.files.internal("data/libgdx.png"));
texture.setFilter(TextureFilter.Linear, TextureFilter.Linear);

int textureWidth = texture.getWidth();
int textureHeight = texture.getHeight();
float rotationAngle = 90f;

TextureRegion region = new TextureRegion(texture, 0, 0, textureWidth, textureHeight);

batch.begin();
batch.draw(region, 0, 0, textureWidth / 2f, textureHeight / 2f, textureWidth, textureHeight, 1, 1, rotationAngle, false);
batch.end();

or take a look at tutorial here.