3 files changed, 17 insertions, 0 deletions
diff --git a/src/main/scala/sims/materials/Material.scala b/src/main/scala/sims/materials/Material.scala
new file mode 100644
index 0000000..b05e082
--- /dev/null
+++ b/src/main/scala/sims/materials/Material.scala
@@ -0,0 +1,7 @@
+package sims.materials
+
+trait Material {
+  val density: Double
+  val restitution: Double
+  val friction: Double
+}
diff --git a/src/main/scala/sims/materials/Rubber.scala b/src/main/scala/sims/materials/Rubber.scala
new file mode 100644
index 0000000..b408d2d
--- /dev/null
+++ b/src/main/scala/sims/materials/Rubber.scala
@@ -0,0 +1,5 @@
+package sims.materials
+
+object Rubber {
+
+}
diff --git a/src/main/scala/sims/materials/Steel.scala b/src/main/scala/sims/materials/Steel.scala
new file mode 100644
index 0000000..1d14563
--- /dev/null
+++ b/src/main/scala/sims/materials/Steel.scala
@@ -0,0 +1,5 @@
+package sims.materials
+
+object Steel {
+
+}
+\ No newline at end of file