Hey,
I’ve finally managed to get a tiled map loaded using libgdx and after a little bit of guess-work I figured out how to move around the map using keys. I’m not sure what to look up to answer these questions so I’ll ask them here.
Now for the questions…
Why is it that the code below zooms in on the map when I remove the “(w/h) *” from the X value and then zooms out when I put it back?
float w = Gdx.graphics.getWidth();
float h = Gdx.graphics.getHeight();
camera = new OrthographicCamera();
camera.setToOrtho(false, (w/h) * cameraX, cameraY);
camera.update();
When I stretch (re-size) the window the map becomes zoomed in instead of just showing more of the map. How would I fix this? I’ll post the code I’m using at the bottom.
When moving around with the arrow keys/WASD the view moves at an extremely fast speed. The only way to fix this, that I can think of, was to change the values of cameraX and cameraY to doubles and instead of increasing/decreasing by 1 when the key is pressed, I would increase/decrease by a decimal value. This, probably, would have worked but the method “setToOrtho” doesn’t allow double values. Is there another way to adjust the speed that you move around the map?
Here is my hacked-together code:
package screens;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.graphics.Camera;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.maps.tiled.TiledMap;
import com.badlogic.gdx.maps.tiled.TiledMapRenderer;
import com.badlogic.gdx.maps.tiled.TmxMapLoader;
import com.badlogic.gdx.maps.tiled.renderers.OrthogonalTiledMapRenderer;
public class Screen_Game2 implements ApplicationListener {
private TiledMap map;
private TiledMapRenderer renderer;
private OrthographicCamera camera;
private int cameraX = 10, cameraY = 10;
private BitmapFont font;
private SpriteBatch batch;
@Override
public void create()
{
float w = Gdx.graphics.getWidth();
float h = Gdx.graphics.getHeight();
camera = new OrthographicCamera();
camera.setToOrtho(false, (w/h) * cameraX, cameraY);
camera.update();
font = new BitmapFont();
batch = new SpriteBatch();
map = new TmxMapLoader().load("assets/Maps/Map_01.tmx");
renderer = new OrthogonalTiledMapRenderer(map, 1f / 32f);
}
@Override
public void render()
{
Gdx.gl.glClearColor(0.55f, 0.55f, 0.55f, 1f);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
float w = Gdx.graphics.getWidth();
float h = Gdx.graphics.getHeight();
if(Gdx.input.isKeyPressed(Keys.LEFT) || Gdx.input.isKeyPressed(Keys.A))
{
cameraX -= 1;
camera.position.x = (w/h) * cameraX;
}
if(Gdx.input.isKeyPressed(Keys.RIGHT) || Gdx.input.isKeyPressed(Keys.D))
{
cameraX += 1;
camera.position.x = (w/h) * cameraX;
}
if(Gdx.input.isKeyPressed(Keys.UP) || Gdx.input.isKeyPressed(Keys.W))
{
cameraY += 1;
camera.position.y = cameraY;
}
if(Gdx.input.isKeyPressed(Keys.DOWN) || Gdx.input.isKeyPressed(Keys.S))
{
cameraY -= 1;
camera.position.y = cameraY;
}
camera.update();
renderer.setView(camera);
renderer.render();
batch.begin();
font.draw(batch, "FPS: " + Gdx.graphics.getFramesPerSecond(), 10, 20);
batch.end();
}
@Override
public void dispose () {
map.dispose();
}
@Override
public void pause() {
// TODO Auto-generated method stub
}
@Override
public void resize(int arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void resume() {
// TODO Auto-generated method stub
}
}
Thanks in advance for any answers!