From 9c81a89ac3e43b0adc671e3233593c233b2ddcb1 Mon Sep 17 00:00:00 2001
From: ZappoMan <brad@highfidelity.io>
Date: Sun, 14 May 2017 08:37:26 -0700
Subject: [PATCH] add test script

---
 .../tests/performance/rayPickPerformance.js   | 131 ++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 scripts/developer/tests/performance/rayPickPerformance.js

diff --git a/scripts/developer/tests/performance/rayPickPerformance.js b/scripts/developer/tests/performance/rayPickPerformance.js
new file mode 100644
index 0000000000..b4faf4c1be
--- /dev/null
+++ b/scripts/developer/tests/performance/rayPickPerformance.js
@@ -0,0 +1,131 @@
+//
+//  rayPickingPerformance.js
+//  examples
+//
+//  Created by Brad Hefta-Gaub on 5/13/2017
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+
+
+var MIN_RANGE = -3;
+var MAX_RANGE = 3;
+var RANGE_DELTA = 0.5;
+var OUTER_LOOPS = 10;
+
+// NOTE: These expected results depend completely on the model, and the range settings above
+var EXPECTED_TESTS = 1385 * OUTER_LOOPS;
+var EXPECTED_INTERSECTIONS = 1286 * OUTER_LOOPS;
+
+
+var center = Vec3.sum(MyAvatar.position, Vec3.multiply(3, Quat.getFront(Camera.getOrientation())));
+var model_url = "http://hifi-content.s3.amazonaws.com/caitlyn/production/Scansite/buddhaReduced.fbx";
+
+var rayPickOverlays = Array();
+
+var modelEntity = Entities.addEntity({
+    type: "Model",
+    modelURL: model_url,
+    dimensions: {
+        x: 0.671,
+        y: 1.21,
+        z: 0.938
+    },
+    position: center
+});
+
+function rayCastTest() {
+    var tests = 0;
+    var intersections = 0;
+
+    var testStart = Date.now();
+    for (var t = 0; t < OUTER_LOOPS; t++) {
+        print("beginning loop:" + t);
+        for (var x = MIN_RANGE; x < MAX_RANGE; x += RANGE_DELTA) {
+            for (var y = MIN_RANGE; y < MAX_RANGE; y += RANGE_DELTA) {
+                for (var z = MIN_RANGE; z < MAX_RANGE; z += RANGE_DELTA) {
+                    if ((x <= -2 || x >= 2) || 
+                        (y <= -2 || y >= 2) || 
+                        (z <= -2 || z >= 2)) {
+
+                        tests++;
+
+                        var origin = { x: center.x + x,
+                                       y: center.y + y,
+                                       z: center.z + z };
+                        var direction = Vec3.subtract(center, origin);
+
+                        var pickRay = { 
+                            origin: origin,
+                            direction: direction
+                        };
+
+                        var pickResults = Entities.findRayIntersection(pickRay, true);
+
+                        var color;
+                        var visible;
+
+                        if (pickResults.intersects && pickResults.entityID == modelEntity) {
+                            intersections++;
+                            color = {
+                                red: 0,
+                                green: 255,
+                                blue: 0
+                            };
+                            visible = false;
+
+                        } else {
+                            /*
+                            print("NO INTERSECTION?");
+                            Vec3.print("origin:", origin);
+                            Vec3.print("direction:", direction);
+                            */
+
+                            color = {
+                                red: 255,
+                                green: 0,
+                                blue: 0
+                            };
+                            visible = true;
+                        }
+
+                        var overlayID = Overlays.addOverlay("line3d", {
+                            color: color,
+                            alpha: 1,
+                            visible: visible,
+                            lineWidth: 2,
+                            start: origin,
+                            end: Vec3.sum(origin,Vec3.multiply(5,direction))
+                        });
+
+                        rayPickOverlays.push(overlayID);
+
+                    }
+                }
+            }
+        }
+        print("ending loop:" + t);
+    }
+    var testEnd = Date.now();
+    var testElapsed = testEnd - testStart;
+
+
+    print("EXPECTED tests:" + EXPECTED_TESTS + " intersections:" + EXPECTED_INTERSECTIONS);
+    print("ACTUAL   tests:" + tests + " intersections:" + intersections);
+    print("ELAPSED TIME:" + testElapsed + " ms");
+
+}
+
+function cleanup() {
+    Entities.deleteEntity(modelEntity);
+    rayPickOverlays.forEach(function(item){
+        Overlays.deleteOverlay(item);
+    });
+}
+
+Script.scriptEnding.connect(cleanup);
+
+rayCastTest(); // run ray cast test immediately
\ No newline at end of file