load lookup table into hashmap and get values

src/main/java/frc/subsystem/Superstructure.java

@@ -1,5 +1,13 @@
 package frc.subsystem;
 
+import edu.wpi.first.wpilibj.Filesystem;
+import frc.subsystem.shooter.Shooter;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
 import edu.wpi.first.math.geometry.Rotation2d;
 import edu.wpi.first.wpilibj.DriverStation;
 import frc.robot.Constants;
@@ -13,7 +21,6 @@
 import frc.utility.MathUtil;
 import org.littletonrobotics.junction.Logger;
 
-
 public class Superstructure extends AbstractSubsystem {
     //unfortunately all of these need to be static so that the enum can access them
     private static Arm arm;
@@ -250,4 +257,76 @@ public static Superstructure getSuperstructure() {
     public Rotation2d getTargetAngle() {
         return targetAngle;
     }
+
+    private String path = Filesystem.getDeployDirectory().getPath(); // need to append exact location of CSV file
+    HashMap<String, ShooterConfiguration> map = new HashMap<String, ShooterConfiguration>();
+
+    public void toHashMap() {
+
+
+        String line = "";
+        String splitBy = ",";
+        try {
+            BufferedReader br = new BufferedReader(new FileReader(path));
+            br.readLine();
+            while ((line = br.readLine()) != null) {
+                String[] fields = line.split(splitBy);
+
+                String distanceDirectionHeight = fields[0];
+                String location = fields[1];
+                double shooterAngle = Double.parseDouble(fields[2]);
+                double shooterVelocity = Double.parseDouble(fields[3]);
+
+                ShooterConfiguration shooterConfiguration = new ShooterConfiguration(location, shooterAngle, shooterVelocity);
+                map.put(distanceDirectionHeight, shooterConfiguration);
+
+            }
+
+            br.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+
+    private String convertToKey(double distance, String direction, String height) {
+        return distance + direction + height;
+
+    }
+
+    public String getLocationOfRobot(double distance, String direction, String height){
+        return map.get(convertToKey(distance, direction, height)).getLocation();
+    }
+    public double getShooterAngle(double distance, String direction, String height){
+        return map.get(convertToKey(distance, direction, height)).getShooterVelocity();
+    }
+    public double getShooterVelocity(double distance, String direction, String height){
+        return map.get(convertToKey(distance, direction, height)).getShooterAngle();
+    }
+
+    static class ShooterConfiguration {
+        private String location;
+        private double shooterAngle;
+        private double shooterVelocity;
+
+        public ShooterConfiguration(String location, double shooterAngle, double shooterVelocity) {
+            this.location = location;
+            this.shooterAngle = shooterAngle;
+            this.shooterVelocity = shooterVelocity;
+        }
+
+        public String getLocation() {
+            return location;
+        }
+
+        public double getShooterAngle() {
+            return shooterAngle;
+        }
+
+        public double getShooterVelocity() {
+            return shooterVelocity;
+        }
+
+    }
 }