Create classes Track, Vehicle and VehicleTimeRecord. Adjust class diagram.

app/src/main/java/de/hems/trafficsim/Track.java

@@ -0,0 +1,16 @@
+package de.hems.trafficsim;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class Track {
+    protected List<Vehicle> vehicles;
+
+    public Track() {
+        this.vehicles = new LinkedList<>();
+    }
+
+    public void timeElapse(float timeStep) {
+
+    }
+}

app/src/main/java/de/hems/trafficsim/Vehicle.java

@@ -0,0 +1,35 @@
+package de.hems.trafficsim;
+
+public class Vehicle {
+    protected float position;
+    protected float curVelocity;
+    protected float maxVelocity;
+
+    public void setForerunner(Vehicle forerunner) {
+        this.forerunner = forerunner;
+    }
+
+    protected Vehicle forerunner;
+
+    public float getPosition() {
+        return position;
+    }
+
+    public float getCurVelocity() {
+        return curVelocity;
+    }
+
+    protected float brakeProp;
+
+    public Vehicle(float position, float maxVelocity, float brakeProp) {
+        this.position = position;
+        this.maxVelocity = maxVelocity;
+        this.brakeProp = brakeProp;
+        this.curVelocity = 0;
+        this.forerunner = null;
+    }
+
+    public void timeElapse(float timeStep) {
+
+    }
+}

app/src/main/java/de/hems/trafficsim/VehicleTimeRecord.java

@@ -0,0 +1,25 @@
+package de.hems.trafficsim;
+
+public class VehicleTimeRecord {
+    public float getPosition() {
+        return position;
+    }
+
+    public float getVelocity() {
+        return velocity;
+    }
+
+    public float getTimestep() {
+        return timestep;
+    }
+
+    protected float position;
+    protected float velocity;
+    protected float timestep;
+
+    public VehicleTimeRecord(float position, float velocity, float timestep) {
+        this.position = position;
+        this.velocity = velocity;
+        this.timestep = timestep;
+    }
+}

doc/classdiagram.graphml

@@ -13,55 +13,52 @@
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+          <y:NodeLabel alignment="center" autoSizePolicy="content" fontFamily="Dialog" fontSize="13" fontStyle="bold" hasBackgroundColor="false" hasLineColor="false" height="19.92626953125" horizontalTextPosition="center" iconTextGap="4" modelName="custom" textColor="#000000" verticalTextPosition="bottom" visible="true" width="49.525390625" x="88.7373046875" xml:space="preserve" y="3.0">Vehicle<y:LabelModel><y:SmartNodeLabelModel distance="4.0"/></y:LabelModel><y:ModelParameter><y:SmartNodeLabelModelParameter labelRatioX="0.0" labelRatioY="0.0" nodeRatioX="0.0" nodeRatioY="0.0" offsetX="0.0" offsetY="0.0" upX="0.0" upY="-1.0"/></y:ModelParameter></y:NodeLabel>
           <y:UML clipContent="true" constraint="" hasDetailsColor="false" omitDetails="false" stereotype="" use3DEffect="true">
-            <y:AttributeLabel xml:space="preserve">position: float
-curVelocity: float
-maxVelocity: float
-brakeProp: float</y:AttributeLabel>
-            <y:MethodLabel xml:space="preserve">timeElapse(timestep: int): void</y:MethodLabel>
+            <y:AttributeLabel xml:space="preserve"># position: float
+# curVelocity: float
+# maxVelocity: float
+# brakeProp: float</y:AttributeLabel>
+            <y:MethodLabel xml:space="preserve">+ timeElapse(timestep: float): void</y:MethodLabel>
           </y:UML>
         </y:UMLClassNode>
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     </node>
     <node id="n1">
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           <y:UML clipContent="true" constraint="" hasDetailsColor="false" omitDetails="false" stereotype="" use3DEffect="true">
             <y:AttributeLabel xml:space="preserve"/>
-            <y:MethodLabel xml:space="preserve">timeElapse(timestep: int): void</y:MethodLabel>
+            <y:MethodLabel xml:space="preserve">+ timeElapse(timestep: float): void</y:MethodLabel>
           </y:UML>
         </y:UMLClassNode>
       </data>
     </node>
     <node id="n2">
       <data key="d4" xml:space="preserve"/>
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         <y:UMLClassNode>
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           <y:Fill color="#FFCC00" transparent="false"/>
           <y:BorderStyle color="#000000" type="line" width="1.0"/>
           <y:NodeLabel alignment="center" autoSizePolicy="content" fontFamily="Dialog" fontSize="13" fontStyle="bold" hasBackgroundColor="false" hasLineColor="false" height="19.92626953125" horizontalTextPosition="center" iconTextGap="4" modelName="custom" textColor="#000000" verticalTextPosition="bottom" visible="true" width="124.65625" x="24.78125" xml:space="preserve" y="3.0">VehicleTimeRecord<y:LabelModel><y:SmartNodeLabelModel distance="4.0"/></y:LabelModel><y:ModelParameter><y:SmartNodeLabelModelParameter labelRatioX="0.0" labelRatioY="0.0" nodeRatioX="0.0" nodeRatioY="0.0" offsetX="0.0" offsetY="0.0" upX="0.0" upY="-1.0"/></y:ModelParameter></y:NodeLabel>
           <y:UML clipContent="true" constraint="" hasDetailsColor="false" omitDetails="false" stereotype="" use3DEffect="true">
-            <y:AttributeLabel xml:space="preserve">position: float
-velocity: float
-timestep: int</y:AttributeLabel>
+            <y:AttributeLabel xml:space="preserve"># position: float
+# velocity: float
+# timestep: float</y:AttributeLabel>
             <y:MethodLabel xml:space="preserve"/>
           </y:UML>
         </y:UMLClassNode>
@@ -69,7 +66,6 @@ timestep: int</y:AttributeLabel>
     </node>
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@@ -81,7 +77,6 @@ timestep: int</y:AttributeLabel>
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-      <data key="d9"/>
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           <y:Path sx="0.0" sy="0.0" tx="0.0" ty="0.0"/>
@@ -91,6 +86,22 @@ timestep: int</y:AttributeLabel>
         </y:PolyLineEdge>
       </data>
     </edge>
+    <edge id="e2" source="n0" target="n0">
+      <data key="d8" xml:space="preserve"/>
+      <data key="d9" xml:space="preserve"><![CDATA[asdsad
+]]></data>
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+          <y:Arrows source="none" target="none"/>
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