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An orthographic camera controller that handles inputs and gestures, for libGDX.
package com.jamesrskemp.libgdx.utils;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.input.GestureDetector;
import com.badlogic.gdx.math.Vector2;
/**
* Author: James Skemp ( jamesrskemp.com / strivinglife.com / github.com/JamesSkemp ), based upon libGDX 1.6.2.
*
* This orthographic camera controller will handle both inputs and gestures, and can log when it's triggered.
*
* Usage example:
camera = new OrthographicCamera();
camera.setToOrtho(false, Constants.VIEWPORT_GUI_WIDTH, Constants.VIEWPORT_GUI_HEIGHT);
camera.update();
cameraController = new OrthographicCameraController(camera);
// Handle inputs.
InputMultiplexer inputMultiplexer = new InputMultiplexer();
// TODO add any game-related actions you want to handle before the camera.
inputMultiplexer.addProcessor(new GestureDetector(cameraController));
inputMultiplexer.addProcessor(cameraController);
Gdx.input.setInputProcessor(inputMultiplexer);
*/
public class OrthographicCameraController implements InputProcessor, GestureDetector.GestureListener {
private static final String TAG = OrthographicCameraController.class.getName();
final OrthographicCamera camera;
/**
* Enables logging. Setting this to false will override all options below.
*/
boolean logActivity = true;
/**
* Log verbose activities, such as moving the mouse. These tend to generate a lot of log entries.
*/
boolean logVerboseActivity = false;
/**
* Log all activity, overriding all options below.
*/
boolean logAllActivity = true;
/**
* Log activity from InputProcessor
*/
boolean logInputProcessorActivity = false;
/**
* Log activity from GestureListener.
*/
boolean logGestureListenerActivity = true;
public OrthographicCameraController(OrthographicCamera camera) {
this.camera = camera;
}
@Override
public boolean fling(float velocityX, float velocityY, int button) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "fling triggered. velocityX " + velocityX + " velocityY " + velocityY + " button " + button);
}
return false;
}
@Override
public boolean keyDown(int keycode) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "keyDown triggered. keycode " + keycode + " (" + Input.Keys.toString(keycode) + ")");
}
return false;
}
@Override
public boolean keyTyped(char character) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "keyTyped triggered. keycode " + character);
}
return false;
}
@Override
public boolean keyUp(int keycode) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "keyUp triggered. keycode " + keycode + " (" + Input.Keys.toString(keycode) + ")");
}
return false;
}
@Override
public boolean longPress(float x, float y) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "longPress triggered. x " + x + " y " + y);
}
return false;
}
@Override
public boolean mouseMoved(int screenX, int screenY) {
if (logActivity && (logAllActivity || logInputProcessorActivity) && logVerboseActivity) {
Gdx.app.log(TAG, "mouseMoved triggered. screenX " + screenX + " screenY " + screenY);
}
return false;
}
@Override
public boolean pan(float x, float y, float deltaX, float deltaY) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "pan triggered. x " + x + " y " + y + " deltaX " + deltaX + " deltaY " + deltaY);
}
return false;
}
@Override
public boolean panStop(float x, float y, int pointer, int button) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "panStop triggered. x " + x + " y " + y + " pointer " + pointer + " button " + button);
}
return false;
}
@Override
public boolean pinch(Vector2 initialPointer1, Vector2 initialPointer2, Vector2 pointer1, Vector2 pointer2) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "pinch triggered. initialPointer1 " + initialPointer1 + " initialPointer2 " + initialPointer2 + " pointer1 " + pointer1 + " pointer2 " + pointer2);
}
return false;
}
@Override
public boolean scrolled(int amount) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "scrolled triggered. amount " + amount);
}
return false;
}
@Override
public boolean tap(float x, float y, int count, int button) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "tap triggered. x " + x + " y " + y + " count " + count + " button " + button);
}
return false;
}
@Override
public boolean touchDown(float x, float y, int pointer, int button) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "touchDown (Gesture) triggered. x " + x + " y " + y + " pointer " + pointer + " button " + button);
}
return false;
}
@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "touchDown (Input) triggered. screenX " + screenX + " screenY " + screenY + " pointer " + pointer + " button " + button);
}
return false;
}
@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "touchDragged triggered. screenX " + screenX + " screenY " + screenY + " pointer " + pointer);
}
return false;
}
@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
if (logActivity && (logAllActivity || logInputProcessorActivity)) {
Gdx.app.log(TAG, "touchUp triggered. screenX " + screenX + " screenY " + screenY + " pointer " + pointer + " button " + button);
}
return false;
}
@Override
public boolean zoom(float initialDistance, float distance) {
if (logActivity && (logAllActivity || logGestureListenerActivity)) {
Gdx.app.log(TAG, "zoom triggered. initialDistance " + initialDistance + " distance " + distance);
}
return false;
}
}
@JamesSkemp

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commented Jul 10, 2015

Note that you still need to add the necessary logic to actually handle the inputs.

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