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GroundMovingEnemy.java
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GroundMovingEnemy.java
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package com.cdm.view.enemy;
import com.badlogic.gdx.math.Vector3;
import com.cdm.view.Position;
import com.cdm.view.elements.MathTools;
import com.cdm.view.elements.RotatingThing;
public abstract class GroundMovingEnemy extends EnemyUnit {
private static Position invalidPos = new Position(-1, -1,
Position.LEVEL_REF);
private Position nextStep = new Position(invalidPos);
public static final float SPEED = 0.2f;
private static final Vector3 DEFAULT_DIRECTION = new Vector3(1, 0, 0);
private Vector3 diff = new Vector3();
private Vector3 movingDir = new Vector3();
private RotatingThing rotation = new RotatingThing();
public GroundMovingEnemy(Position pos) {
super(pos);
setSize(0.2f);
}
@Override
public void move(float time) {
super.move(time);
while (time > 0) {
if (nextStep.equals(invalidPos)) {
nextStep.set(createNextStep());
}
Position nuPos = new Position(getPosition());
diff.set(getPosition().to(nextStep));
float targetAngle = MathTools.angle(diff);
rotation.setTargetAngle(targetAngle);
time -= rotation.move(time);
if (time < 0.00001f)
return;
float len = diff.len();
float delta = time * getSpeed();
if (delta >= len) {
setPosition(nextStep);
time -= len / delta;
nextStep.set(invalidPos);
} else {
diff.mul(delta / diff.len());
nuPos.x += diff.x;
nuPos.y += diff.y;
setPosition(nuPos);
time = 0;
}
}
}
protected Position createNextStep() {
return getLevel().getNextPos(getPosition().tmp().alignedToGrid());
}
protected float getAngle() {
return rotation.getCurrentAngle();
}
@Override
public float getOriginalSpeed() {
return SPEED;
}
public void setTurningSpeed2(float speed) {
rotation.setTurningSpeed(speed);
}
@Override
public Vector3 getMovingDirection() {
if (nextStep != null)
return movingDir.set(getPosition().to(nextStep).nor());
return DEFAULT_DIRECTION;
}
@Override
public int getZLayer() {
return 0;
}
}