// Updates the input, moving ike to the corresponding key presses
private void updateInput() {
final Vector2 vel = ikeBody.getLinearVelocity();
final Vector2 pos = ikeBody.getPosition();
if (ike.movingLeft && vel.x > -MAX_VELOCITY.x)
ikeBody.applyLinearImpulse(-0.80f, 0, pos.x, pos.y, true);
if (ike.movingRight && vel.x < MAX_VELOCITY.x)
ikeBody.applyLinearImpulse(0.80f, 0, pos.x, pos.y, true);
}
public void applySteering(Body body) {
// For Kinematic & Static bodies, we set the velocity
BodyType type = body.getType();
if (type == BodyType.KinematicBody || type == BodyType.StaticBody) {
body.setLinearVelocity(velocity);
body.setAngularVelocity(rotation);
} else {
// body is dynamic, so we apply an impulse
body.applyLinearImpulse(velocity, body.getWorldCenter());
body.applyAngularImpulse(rotation);
}
}
private void processPhysicsMovement(
Body body, InputComponent ic, Position pc, Velocity vc, Rotation rc, int id) {
if (body == null) {
logger.error("ERR: cannot process movement for ent#" + id + "; body == null");
lifeCycleMapper.get(id).kill();
return;
}
body.setLinearVelocity(0, 0);
// accelerate
Vector2 force = ic.direction.cpy().nor().scl(ic.speed);
body.applyLinearImpulse(force, body.getWorldCenter(), true);
// update entity
pc.position.set(body.getPosition());
vc.velocity.set(body.getLinearVelocity());
rc.angle = MathUtils.radiansToDegrees * body.getAngle();
}
@Override
public boolean touchUp(int x, int y, int arg2, int arg3) {
Vector3 coordinates = new Vector3(x, y, 0);
camera.unproject(coordinates);
if (lastTouchPolygon != null) {
Vector2 impulse =
new Vector2(coordinates.x, coordinates.y)
.sub(lastTouchCoordinates)
.scl(lastTouchPolygon.getMass());
Log.log(
"LiveMode.touchUp",
"applying impulse: " + impulse + " on body: " + lastTouchPolygon.getPosition());
lastTouchPolygon.applyLinearImpulse(
impulse, lastTouchPolygonLocalCoordinates.add(lastTouchPolygon.getPosition()), true);
lastTouchCoordinates = null;
lastTouchPolygon = null;
lastTouchPolygonLocalCoordinates = null;
}
return false;
}
public void hit(Enemy enemy) {
if (enemy instanceof Turtle && ((Turtle) enemy).currentState == Turtle.State.STANDING_SHELL)
((Turtle) enemy)
.kick(
enemy.b2body.getPosition().x > b2body.getPosition().x
? Turtle.KICK_RIGHT
: Turtle.KICK_LEFT);
else {
if (marioIsBig) {
marioIsBig = false;
timeToRedefineMario = true;
setBounds(getX(), getY(), getWidth(), getHeight() / 2);
MarioBros.manager.get("audio/sounds/powerdown.wav", Sound.class).play();
} else {
MarioBros.manager.get("audio/music/mario_music.ogg", Music.class).stop();
MarioBros.manager.get("audio/sounds/mariodie.wav", Sound.class).play();
marioIsDead = true;
Filter filter = new Filter();
filter.maskBits = MarioBros.NOTHING_BIT;
for (Fixture fixture : b2body.getFixtureList()) fixture.setFilterData(filter);
b2body.applyLinearImpulse(new Vector2(0, 4f), b2body.getWorldCenter(), true);
}
}
}
public void jumpBody(Body body, float height) {
body.applyLinearImpulse(new Vector2(0, height), body.getWorldCenter(), true);
}
void playerJump(Nothing ignored) {
if (isPlayerOnFloor) {
playerBody.applyLinearImpulse(Constants.JUMP_IMPULSE, playerBody.getPosition(), true);
}
}
void playerMoveLeft(Nothing ignored) {
System.out.println(backEdge);
if (playerBody.getLinearVelocity().x > -10 && playerBody.getPosition().x > backEdge + 3)
playerBody.applyLinearImpulse(Constants.WALKING_FORCE_LEFT, new Vector2(0f, 0f), true);
}
void playerMoveRight(Nothing ignored) {
if (playerBody.getLinearVelocity().x < 10)
playerBody.applyLinearImpulse(Constants.WALKING_FORCE_RIGHT, new Vector2(0f, 0f), true);
}
public void jump() {
b2body.applyLinearImpulse(new Vector2(0, 4f), b2body.getWorldCenter(), true);
currentState = State.JUMPING;
}
/**
* Method is called on every collision between two Box2D bodies. Behaviour of certain body
* collisions are defined in this method. Collisions between bodies are defined and accessed by
* means of bitwise or-ing their category bits.
*/
@Override
public void beginContact(Contact c) {
Fixture fa = c.getFixtureA();
Fixture fb = c.getFixtureB();
int collisionDefinition = fa.getFilterData().categoryBits | fb.getFilterData().categoryBits;
switch (collisionDefinition) {
// foot collides with floor
case B2DVars.BIT_PLAYER_FOOT | B2DVars.BIT_BLOCKS:
numJumps++;
break;
// Player collides with student, deal damage to player or kill enemy
case B2DVars.BIT_PLAYER | B2DVars.BIT_STUDENT:
System.out.println("hit!");
playerStudentCollisionCount++;
Vector2 playerPosition, playerVelocity, studentPosition;
Body player, student;
if (fa.getUserData().equals("player")) {
player = fa.getBody();
playerPosition = fa.getBody().getPosition();
playerVelocity = fa.getBody().getLinearVelocity();
student = fb.getBody();
studentPosition = fb.getBody().getPosition();
} else {
player = fb.getBody();
playerPosition = fb.getBody().getPosition();
playerVelocity = fb.getBody().getLinearVelocity();
student = fa.getBody();
studentPosition = fa.getBody().getPosition();
}
// Player hits enemy from above, 0.1 offset is to ensure player is significantly above enemy
if (playerPosition.y - 0.1 > studentPosition.y && playerVelocity.y <= 0) {
Game.ass.getAudio("kill").play(1.0f);
bodiesToKill.add(student);
player.setLinearVelocity(player.getLinearVelocity().x, 2f);
} else {
((Player) player.getUserData()).damagePlayer();
Game.ass.getAudio("hit").play(1.0f);
Vector2 point = new Vector2(playerPosition.x, playerPosition.y);
if (playerPosition.x < studentPosition.x) {
player.applyLinearImpulse(new Vector2(-30f, 0), point, true);
} else {
player.applyLinearImpulse(new Vector2(30f, 0), point, true);
}
}
break;
// player collides with coin
case B2DVars.BIT_PLAYER | B2DVars.BIT_COINS:
if (fa.getUserData().equals("coin")) {
// delete coin
bodiesToKill.add(fa.getBody());
Game.ass.getAudio("coin").play(1.0f);
} else {
bodiesToKill.add(fb.getBody());
Game.ass.getAudio("coin").play(1.0f);
}
break;
// player collides with end of level region
case B2DVars.BIT_PLAYER | B2DVars.BIT_END:
if (fa.getUserData().equals("end")) {
Player playerB = (Player) fb.getBody().getUserData();
if (playerB.getNumCoins() == playerB.getNumCoinsToCollect()) {
playerB.setLevelCompleteBool(true);
break;
}
playerB.setLevelCompleteBool(false);
break;
} else {
Player playerA = (Player) fa.getBody().getUserData();
if (playerA.getNumCoins() == playerA.getNumCoinsToCollect()) {
playerA.setLevelCompleteBool(true);
break;
}
playerA.setLevelCompleteBool(false);
break;
}
}
}
