diff --git a/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerProperty.java b/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerProperty.java
new file mode 100644
index 0000000..5c94ce3
--- /dev/null
+++ b/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerProperty.java
@@ -0,0 +1,46 @@
+package com.colonelpanic.n64all.server.model;
+
+public enum ControllerProperty {
+    ANALOG_X(0, -80, 80),
+    ANALOG_Y(0, -80, 80),
+    A_BTN(0, 0, 1),
+    B_BTN(0, 0, 1),
+    Z_BTN(0, 0, 1),
+    C_UP_ARROW(0, 0, 1),
+    C_LEFT_ARROW(0, 0, 1),
+    C_RIGHT_ARROW(0, 0, 1),
+    C_DOWN_ARROW(0, 0, 1),
+    L_TRIGGER(0, 0, 1),
+    R_TRIGGER(0, 0, 1),
+    START(0, 0, 1);
+
+    private final int defaultValue;
+    private final int minValue;
+    private final int maxValue;
+
+    /**
+     * The definition of the schema for each player controller property. This defines
+     * defaults, as well as the allowed values.
+     *
+     * @param defaultValue the default value that this property is set to
+     * @param min          the minimum value (inclusive) the property can be
+     * @param max          the maximum value (inclusive) the property can be
+     */
+    ControllerProperty(int defaultValue, int min, int max) {
+        this.defaultValue = defaultValue;
+        this.minValue = min;
+        this.maxValue = max;
+    }
+
+    public int getDefaultValue() {
+        return defaultValue;
+    }
+
+    public int getMinValue() {
+        return minValue;
+    }
+
+    public int getMaxValue() {
+        return maxValue;
+    }
+}
diff --git a/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerState.java b/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerState.java
new file mode 100644
index 0000000..85622f7
--- /dev/null
+++ b/server/src/main/java/com/colonelpanic/n64all/server/model/ControllerState.java
@@ -0,0 +1,32 @@
+package com.colonelpanic.n64all.server.model;
+
+import com.colonelpanic.n64all.server.service.PlayerController;
+import com.google.common.collect.Maps;
+
+import java.util.Map;
+
+public class ControllerState implements PlayerController {
+    private Map<ControllerProperty, Integer> properties;
+
+    public ControllerState() {
+        this.properties = Maps.newConcurrentMap();
+
+        for (ControllerProperty prop : ControllerProperty.values()) {
+            setState(prop, prop.getDefaultValue());
+        }
+    }
+
+    public void setState(ControllerProperty property, int value) {
+        if (isValidPropertyValue(property, value)) {
+            properties.put(property, value);
+        }
+    }
+
+    public int getState(ControllerProperty property) {
+        return properties.get(property);
+    }
+
+    private boolean isValidPropertyValue(ControllerProperty prop, int value) {
+        return prop.getMinValue() <= value && prop.getMaxValue() >= value;
+    }
+}
diff --git a/server/src/main/java/com/colonelpanic/n64all/server/service/ControllerService.java b/server/src/main/java/com/colonelpanic/n64all/server/service/ControllerService.java
index 9419a4e..36fe140 100644
--- a/server/src/main/java/com/colonelpanic/n64all/server/service/ControllerService.java
+++ b/server/src/main/java/com/colonelpanic/n64all/server/service/ControllerService.java
@@ -1,4 +1,8 @@
 package com.colonelpanic.n64all.server.service;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class ControllerService {
+    private static final Logger logger = LoggerFactory.getLogger(ControllerService.class);
 }
diff --git a/server/src/main/java/com/colonelpanic/n64all/server/service/PlayerController.java b/server/src/main/java/com/colonelpanic/n64all/server/service/PlayerController.java
new file mode 100644
index 0000000..1ef33d6
--- /dev/null
+++ b/server/src/main/java/com/colonelpanic/n64all/server/service/PlayerController.java
@@ -0,0 +1,10 @@
+package com.colonelpanic.n64all.server.service;
+
+import com.colonelpanic.n64all.server.model.ControllerProperty;
+
+public interface PlayerController {
+    void setState(ControllerProperty property, int value);
+
+    int getState(ControllerProperty property);
+
+}