fix sensing and cooldown multipliers

Author: Ian Gonzalez Hermosillo

engine/src/main/battlecode/common/GameConstants.java

@@ -119,14 +119,14 @@ public class GameConstants {
     /** Maximum amount of turns a robot can go at 0 paint without dying */
     public static final int MAX_TURNS_WITHOUT_PAINT = 10;
 
-    /** Maximum percent amount of paint to start cooldown */
-    public static final int DECREASED_MOVEMENT_THRESHOLD = 50;
+    /** Percent of paint capacity at which a robot begins to face increased cooldowns */
+    public static final int INCREASED_COOLDOWN_THRESHOLD = 50;
 
-    /** Intercept in the formula for the movement cooldown */
-    public static final int MOVEMENT_COOLDOWN_INTERCEPT = 100;
+    /** Intercept in the formula for the increased cooldown */
+    public static final int INCREASED_COOLDOWN_INTERCEPT = 100;
 
-    /** Slope of paint in the formula for the movement cooldown */
-    public static final int MOVEMENT_COOLDOWN_SLOPE = -2;
+    /** Slope of paint in the formula for the increased cooldown */
+    public static final int INCREASED_COOLDOWN_SLOPE = -2;
 
     /** Multiplier for paint penalties moppers face for ending on non-ally territory. */
     public static final int MOPPER_PAINT_PENALTY_MULTIPLIER = 2;

engine/src/main/battlecode/world/InternalRobot.java

@@ -264,6 +264,12 @@ public void upgradeTower(UnitType newType) {
      * Resets the action cooldown.
      */
     public void addActionCooldownTurns(int numActionCooldownToAdd) {
+        int paintPercentage = (int) Math.round(this.paintAmount * 100.0/ this.type.paintCapacity);
+        if (paintPercentage < GameConstants.INCREASED_COOLDOWN_THRESHOLD && type.isRobotType()) {
+            numActionCooldownToAdd = (int) Math.round(numActionCooldownToAdd
+                    * (GameConstants.INCREASED_COOLDOWN_INTERCEPT + GameConstants.INCREASED_COOLDOWN_SLOPE * paintPercentage)
+                    / 100.0);
+        }
         setActionCooldownTurns(this.actionCooldownTurns + numActionCooldownToAdd);
     }
 
@@ -272,9 +278,10 @@ public void addActionCooldownTurns(int numActionCooldownToAdd) {
      */
     public void addMovementCooldownTurns() {
         int movementCooldown = GameConstants.MOVEMENT_COOLDOWN;
-        if (paintAmount < GameConstants.MOVEMENT_COOLDOWN) {
-            movementCooldown = (int) Math.round(GameConstants.MOVEMENT_COOLDOWN
-                    * (GameConstants.MOVEMENT_COOLDOWN_INTERCEPT + GameConstants.MOVEMENT_COOLDOWN_SLOPE * paintAmount)
+        int paintPercentage = (int) Math.round(this.paintAmount * 100.0/ this.type.paintCapacity);
+        if (paintPercentage < GameConstants.INCREASED_COOLDOWN_THRESHOLD && type.isRobotType()) {
+            movementCooldown = (int) Math.round(movementCooldown
+                    * (GameConstants.INCREASED_COOLDOWN_INTERCEPT + GameConstants.INCREASED_COOLDOWN_SLOPE * paintPercentage)
                     / 100.0);
         }
         this.setMovementCooldownTurns(this.movementCooldownTurns + movementCooldown);

engine/src/main/battlecode/world/RobotControllerImpl.java

@@ -222,7 +222,7 @@ public RobotInfo senseRobotAtLocation(MapLocation loc) throws GameActionExceptio
     @Override
     public boolean canSenseRobot(int id) {
         InternalRobot sensedRobot = getRobotByID(id);
-        return sensedRobot == null || canSenseLocation(sensedRobot.getLocation());
+        return sensedRobot != null && canSenseLocation(sensedRobot.getLocation());
     }
 
     @Override