From 92b66c9e014ceeba7c953077936b2f25c767969f Mon Sep 17 00:00:00 2001
From: Hanno Braun <hanno@habraun.net>
Date: Wed, 11 Mar 2009 13:28:08 +0100
Subject: [PATCH] Added the class TestResult in the new package sd.collision.
 TestResult will be used to return results of Shape-Shape tests.

---
 src/net/habraun/sd/collision/TestResult.scala      | 50 ++++++++++++++
 test/net/habraun/sd/collision/TestResultTest.scala | 79 ++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 src/net/habraun/sd/collision/TestResult.scala
 create mode 100644 test/net/habraun/sd/collision/TestResultTest.scala

diff --git a/src/net/habraun/sd/collision/TestResult.scala b/src/net/habraun/sd/collision/TestResult.scala
new file mode 100644
index 0000000..389169a
--- /dev/null
+++ b/src/net/habraun/sd/collision/TestResult.scala
@@ -0,0 +1,50 @@
+/*
+	Copyright (c) 2009 Hanno Braun <hanno@habraun.net>
+
+	Licensed under the Apache License, Version 2.0 (the "License");
+	you may not use this file except in compliance with the License.
+	You may obtain a copy of the License at
+
+		http://www.apache.org/licenses/LICENSE-2.0
+
+	Unless required by applicable law or agreed to in writing, software
+	distributed under the License is distributed on an "AS IS" BASIS,
+	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+	See the License for the specific language governing permissions and
+	limitations under the License.
+*/
+
+
+
+package net.habraun.sd.collision
+
+
+
+import math._
+
+
+
+/**
+ * This is the result of a collision test between two shapes.
+ * A test result has the following attributes:
+ * * t: The time of impact. This is a value between 0.0 (beginning of the movement) and 1.0 (end of the
+ *      movement).
+ * * contact: The point of contact between the two shapes.
+ * * normal: The first shape's surface normal at the point of contact.
+ */
+
+case class TestResult(t: Double, contact: Vec2D, normal: Vec2D) {
+	// Check if t is valid.
+	if (t < 0.0 || t > 1.0)
+		throw new IllegalArgumentException("The time must be between 0.0 and 1.0 (t: " + t + ").")
+
+	// Check if contact is valid.
+	if (contact == null)
+		throw new NullPointerException("Contact point must not be null.")
+
+	// Check if normal is valid.
+	if (normal == null)
+		throw new NullPointerException("Normal must not be null.")
+	if (!normal.unit)
+		throw new IllegalArgumentException("Normal must be a unit vector (normal: " + normal + ").")
+}
diff --git a/test/net/habraun/sd/collision/TestResultTest.scala b/test/net/habraun/sd/collision/TestResultTest.scala
new file mode 100644
index 0000000..38ce2a6
--- /dev/null
+++ b/test/net/habraun/sd/collision/TestResultTest.scala
@@ -0,0 +1,79 @@
+/*
+	Copyright (c) 2009 Hanno Braun <hanno@habraun.net>
+
+	Licensed under the Apache License, Version 2.0 (the "License");
+	you may not use this file except in compliance with the License.
+	You may obtain a copy of the License at
+
+		http://www.apache.org/licenses/LICENSE-2.0
+
+	Unless required by applicable law or agreed to in writing, software
+	distributed under the License is distributed on an "AS IS" BASIS,
+	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+	See the License for the specific language governing permissions and
+	limitations under the License.
+*/
+
+
+
+package net.habraun.sd.collision
+
+
+
+import math._
+
+import org.junit._
+import org.junit.Assert._
+
+
+
+class TestResultTest {
+
+	@Test
+	def verifyHasAttributes {
+		TestResult(0.5, Vec2D(5, 5), Vec2D(1, 0))
+	}
+
+
+
+	@Test { val expected = classOf[IllegalArgumentException] }
+	def createWithNegativeT {
+		TestResult(-1.0, Vec2D(5, 5), Vec2D(1, 0))
+	}
+
+
+
+	@Test { val expected = classOf[IllegalArgumentException] }
+	def createWithTGreater1 {
+		TestResult(1.1, Vec2D(5, 5), Vec2D(1, 0))
+	}
+
+
+
+	@Test { val expected = classOf[NullPointerException] }
+	def createWithContactNull {
+		TestResult(0.5, null, Vec2D(1, 0))
+	}
+
+
+
+	@Test { val expected = classOf[NullPointerException] }
+	def createWithNormalNull {
+		TestResult(0.5, Vec2D(5, 5), null)
+	}
+
+
+
+	@Test { val expected = classOf[IllegalArgumentException] }
+	def createWithNonNormalNormal {
+		TestResult(0.5, Vec2D(5, 5), Vec2D(1, 1))
+	}
+
+
+
+	@Test
+	def createWithNonNormalNormalExpectTolerance {
+		TestResult(0.5, Vec2D(5, 5), Vec2D(1.02, 0))
+		TestResult(0.5, Vec2D(5, 5), Vec2D(0.98, 0))
+	}
+}
-- 
2.11.4.GIT