initial commit

lift/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="lib" path="/cs/labs.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

lift/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>2. Passenger lift</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+	<filteredResources>
+		<filter>
+			<id>1678721711435</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
+</projectDescription>

lift/.settings/org.eclipse.core.resources.prefs

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+eclipse.preferences.version=1
+encoding/<project>=UTF-8

lift/src/OnePersonRidesLift.java

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+
+import lift.LiftView;
+import lift.Passenger;
+
+public class OnePersonRidesLift {
+
+    public static void main(String[] args) {
+
+        final int NBR_FLOORS = 7, MAX_PASSENGERS = 4;
+
+        LiftView  view = new LiftView(NBR_FLOORS, MAX_PASSENGERS);
+        Passenger pass = view.createPassenger();
+        int  fromFloor = pass.getStartFloor();
+        int    toFloor = pass.getDestinationFloor();
+
+        pass.begin();                        // walk in (from left)
+        if (fromFloor != 0) {
+            view.moveLift(0, fromFloor);
+        }
+        view.openDoors(fromFloor);
+        pass.enterLift();                    // step inside
+
+        view.closeDoors();
+        view.moveLift(fromFloor, toFloor);   // ride lift
+        view.openDoors(toFloor);
+
+        pass.exitLift();                     // leave lift
+        pass.end();                          // walk out (to the right)
+    }
+}

lift/src/lift/Passenger.java

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+package lift;
+
+public interface Passenger {
+    /** @return the floor the passenger starts at */
+    int getStartFloor();
+
+    /** @return the floor the passenger is going to */
+    int getDestinationFloor();
+
+    /** First, delay for 0..45 seconds. Then animate the passenger's walk, on the entry floor, to the lift. */
+    void begin();
+
+    /** Animate the passenger's walk from the entry floor into the lift. */
+    void enterLift();
+
+    /** Animate the passenger's walk out of the lift, to the exit floor. */
+    void exitLift();
+
+    /** Animate the passenger's walk, on the exit floor, out of view. */
+    void end();
+}