Example usage for com.badlogic.gdx.math Vector2 rotate90

Introduction

In this page you can find the example usage for com.badlogic.gdx.math Vector2 rotate90.

Prototype

public Vector2 rotate90(int dir) 

Source Link

Document

Rotates the Vector2 by 90 degrees in the specified direction, where >= 0 is counter-clockwise and < 0 is clockwise.

Usage

From source file:com.octa.topdown.entities.Player.java

License:Open Source License

@Override
public boolean update(float dTime) {
    knock.x = 0;//from   www. j  av a 2s .  c  o m
    knock.y = 0;
    this.delta.x = 0;
    this.delta.y = 0;

    // Handle user input
    if (InputTracker.isPressed(InputTracker.DOWN)) {
        this.delta.y = -this.speed * dTime;
    }
    if (InputTracker.isPressed(InputTracker.UP)) {
        this.delta.y = this.speed * dTime;
    }
    if (InputTracker.isPressed(InputTracker.RIGHT)) {
        this.delta.x = this.speed * dTime;
    }
    if (InputTracker.isPressed(InputTracker.LEFT)) {
        this.delta.x = -this.speed * dTime;
    }

    if (InputTracker.isJustReleased(InputTracker.UP) || InputTracker.isJustReleased(InputTracker.DOWN)) {
        this.delta.y = 0;
    }
    if (InputTracker.isJustReleased(InputTracker.LEFT) || InputTracker.isJustReleased(InputTracker.RIGHT)) {
        this.delta.x = 0;
    }
    if (InputTracker.isJustReleased(InputTracker.SPACE)) {
        arm = arm == gun ? stick : gun;
    }

    // Animate sprite if moving
    if (this.delta.x != 0 || this.delta.y != 0) {
        updateAnim();
    }

    // Cast a vector from the player's position in the screen(always the center)
    // to the mouse pointer. Then, get that vector's angle and set it to the sprite's
    // rotation, so the sprite "faces" the mouse.
    float midX = Gdx.graphics.getWidth() / 2;
    float midY = Gdx.graphics.getHeight() / 2;
    float mouseX = InputTracker.getMousePos().x;
    float mouseY = Gdx.graphics.getHeight() - InputTracker.getMousePos().y;

    Vector2 dir = new Vector2(mouseX - midX, mouseY - midY);
    dir.rotate90(-1);
    this.setRotation(dir.angle());

    // Update player's position
    this.setX(this.getX() + this.delta.x);
    this.setY(this.getY() + this.delta.y);

    if (Gdx.input.isTouched()) {
        float px = this.getX() + (this.getWidth() / 2);
        float py = this.getY() + (this.getHeight() / 2);

        px -= SinCosTable.getSin((int) this.getRotation() + 20) * 23;
        py += SinCosTable.getCos((int) this.getRotation() + 20) * 23;

        if (!arm.isMeele()) {
            if (ammo > 0) {
                ammo--;
                arm.shoot(px, py, getRotation());
            }
        } else {
            arm.shoot(px, py, getRotation());
        }
    }

    updateAABB();
    stick.setAABB(AABB);
    return true;
}

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From source file:com.octa.topdown.entities.Zombie.java

License:Open Source License

@Override
public boolean update(float dTime) {
    this.delta.x = this.delta.y = 0;
    knock.x = 0;//  w w  w.j a v  a  2  s  .co  m
    knock.y = 0;

    if (this.hp <= 0)
        return false;

    if (objective != null && chaseObj) {

        Vector2 dir = new Vector2(objective.x - this.getX(), objective.y - this.getY());
        dir.rotate90(-1);
        this.setRotation(dir.angle());

        sin = SinCosTable.getSin((int) this.getRotation());
        cos = SinCosTable.getCos((int) this.getRotation());

        delta.x = -sin * speed * dTime;
        delta.y = cos * speed * dTime;

        this.setX(this.getX() + this.delta.x);
        this.setY(this.getY() + this.delta.y);
    }

    if (this.delta.x != 0 || this.delta.y != 0)
        updateAnim();

    updateAABB();
    return true;
}

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