Example script to navigate a 'camera' using a Flystick joystick

Author: ka-ART

Examples/ExampleCameraNavigator.cs

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+/* ART DTRACK Plugin for Unity Game Engine: ExampleCameraNavigator.cs
+ *
+ * Example event listener routine to navigate a camera using a Flystick joystick.
+ * For use in own scripts.
+ *
+ * Copyright (c) 2023 Advanced Realtime Tracking GmbH & Co. KG
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using UnityEngine;
+
+namespace DTrack.Examples
+{
+
+
+public class ExampleCameraNavigator : MonoBehaviour
+{
+	private const float speedLoc = 4.0f;  // maximum speed to move in meter per second
+	private const float speedRot = 90.0f;  // maximum speed to rotate in degree per second
+
+	private float joystickX = 0.0f;
+	private float joystickY = 0.0f;
+
+
+	// Receive event on changed Flystick joystick values.
+	//
+	// Event is invoked every time, when one of the joystick values changed
+	//
+	// joystickX : horizontal joystick value (-1.0 .. 1.0)
+	// joystickY : vertical joystick value (-1.0 .. 1.0)
+
+	public void OnJoystickChanged( float joystickX, float joystickY )
+	{
+		this.joystickX = joystickX;
+		this.joystickY = joystickY;
+	}
+
+
+	void FixedUpdate()
+	{
+		if ( this.joystickY != 0.0f )
+		{
+			float ds = this.joystickY * speedLoc * Time.fixedDeltaTime;
+
+			this.transform.position += ds * Vector3.ProjectOnPlane( this.transform.rotation * Vector3.forward, Vector3.up );
+		}
+
+		if ( this.joystickX != 0.0f )
+		{
+			float da = this.joystickX * speedRot * Time.fixedDeltaTime;
+
+			this.transform.rotation = Quaternion.Euler( 0.0f, da, 0.0f ) * this.transform.rotation;
+		}
+	}
+}
+
+
+}  // namespace DTrack.Examples
+