Android Open Source - googol Path

From Project

Back to project page googol.

License

The source code is released under:

MIT License

If you think the Android project googol listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.martinb.googol.Control;
/*from  w w w  . j  ava  2s  .co m*/
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.utils.TimeUtils;

/**
 * Path used by a character
 */
public class Path {
  
  public static final short MIRROR_LEFT_TO_RIGHT = 0;
  public static final short MIRROR_RIGHT_TO_LEFT = 1;
  public static final short MIRROR_UP_TO_DOWN = 2;
  public static final short MIRROR_DOWN_TO_UP = 3;
  
  float angleChangeCooldownDuration; // Cooldown time in millis
  long angleChangeCooldownStart; // Cooldown start time in millis
  float velocityChangeCooldownDuration; // Cooldown time in millis
  long velocityChangeCooldownStart; // Cooldown start time in millis
  float angleChange;
  float difficulty;
  Vector2 velocity;
  
  /**
   * Creates a path depending on difficulty chosen
   */
  public Path(float difficulty) {
    this.difficulty = difficulty;
    this.velocity = new Vector2();
    setAngleChange(difficulty);
    setVelocity(difficulty);
  }
  
  public void update(float delta) {
    if (TimeUtils.timeSinceMillis(angleChangeCooldownStart) > angleChangeCooldownDuration) {
      setAngleChange(difficulty);
    }
    if (TimeUtils.timeSinceMillis(velocityChangeCooldownStart) > velocityChangeCooldownDuration) {
      setVelocity(difficulty);
    }
    velocity = velocity.rotate(angleChange * delta);
  }
  
  public Vector2 getVelocity() {
    return velocity;
  }
  
  public void mirrorVelocity(short direction) {
    switch (direction) {
    case MIRROR_LEFT_TO_RIGHT:
      velocity.x = Math.abs(velocity.x);
      break;
    case MIRROR_RIGHT_TO_LEFT:
      velocity.x = -Math.abs(velocity.x);
      break;
    case MIRROR_DOWN_TO_UP:
      velocity.y = Math.abs(velocity.y);
      break;
    case MIRROR_UP_TO_DOWN:
      velocity.y = -Math.abs(velocity.y);
      break;
    }
  }
  
  void setAngleChange(float difficulty) {
    angleChange = (float) (Math.random() * 2 - 1) * difficulty * 100;
    angleChangeCooldownDuration = (float) (Math.random() * 8 + 2) * 1000;
    angleChangeCooldownStart = TimeUtils.millis();
  }
  
  void setVelocity(float difficulty) {
    velocity.set(difficulty * 50, 0);
    velocity.setAngle((float) Math.random()*360);
    velocityChangeCooldownDuration = (float) (Math.random() * 16 + 2) * 1000;
    velocityChangeCooldownStart = TimeUtils.millis();
  }
}

Java Source Code List