Actual project things

Assets/PlayAreaScale.cs

@@ -0,0 +1,64 @@
+using UnityEngine;
+using System.Collections;
+using Valve.VR;
+
+[ExecuteInEditMode]
+public class PlayAreaScale : MonoBehaviour {
+    public float Padding = 0;
+
+    public static bool GetBounds(ref HmdQuad_t pRect)
+	{
+        var initOpenVR = (!SteamVR.active && !SteamVR.usingNativeSupport);
+        if (initOpenVR)
+        {
+            var error = EVRInitError.None;
+            OpenVR.Init(ref error, EVRApplicationType.VRApplication_Other);
+        }
+
+        var chaperone = OpenVR.Chaperone;
+        bool success = (chaperone != null) && chaperone.GetPlayAreaRect(ref pRect);
+        if (!success)
+        {
+            Debug.LogWarning("Failed to get Calibrated Play Area bounds!  Make sure you have tracking first, and that your space is calibrated.");
+        }
+
+        if (initOpenVR)
+            OpenVR.Shutdown();
+
+        return success;
+    }
+
+	// Use this for initialization
+	void OnEnable() {
+        StartCoroutine("UpdateBounds");
+    }
+
+    // Update is called once per frame
+    void Update () {
+        
+	}
+
+    IEnumerator UpdateBounds()
+    {
+        var rect = new HmdQuad_t();
+        if (!GetBounds(ref rect)) {
+            yield return null;
+        }
+		var corners = new HmdVector3_t[] { rect.vCorners0, rect.vCorners1, rect.vCorners2, rect.vCorners3 };
+        float maxX = 0.0f;
+        float maxZ = 0.0f;
+        foreach (var corner in corners) {
+            if (corner.v0 > maxX) {
+                maxX = corner.v0;
+            }
+            if (corner.v2 > maxZ) {
+                maxZ = corner.v2;
+            }
+        }
+        maxX += Padding;
+        maxZ += Padding;
+        maxX *= 2;
+        maxZ *= 2;
+        transform.localScale = new Vector3(maxX, transform.localScale.y, maxZ);
+    }
+}