public void defineMario() {
BodyDef bDef = new BodyDef();
bDef.position.set(32 / MarioBros.PPM, 32 / MarioBros.PPM);
bDef.type = BodyDef.BodyType.DynamicBody;
b2body = world.createBody(bDef);
FixtureDef fdef = new FixtureDef();
CircleShape shape = new CircleShape();
shape.setRadius(6 / MarioBros.PPM);
fdef.filter.categoryBits = MarioBros.MARIO_BIT;
fdef.filter.maskBits =
MarioBros.GROUND_BIT
| MarioBros.COIN_BIT
| MarioBros.BRICK_BIT
| MarioBros.ENEMY_BIT
| MarioBros.OBJECT_BIT
| MarioBros.ENEMY_HEAD_BIT
| MarioBros.ITEM_BIT;
fdef.shape = shape;
b2body.createFixture(fdef);
EdgeShape head = new EdgeShape();
head.set(
new Vector2(-2 / MarioBros.PPM, 6 / MarioBros.PPM),
new Vector2(2 / MarioBros.PPM, 6 / MarioBros.PPM));
fdef.filter.categoryBits = MarioBros.MARIO_HEAD_BIT;
fdef.filter.maskBits = MarioBros.BRICK_BIT | MarioBros.COIN_BIT;
fdef.shape = head;
fdef.isSensor = true;
b2body.createFixture(fdef).setUserData(this);
}
private Fixture createPhysicsObject(Rectangle bounds, ModelType type, Integer id) {
UserData userData = new UserData(numEnterPoints, type, null);
CircleShape objectPoly = new CircleShape();
objectPoly.setRadius(bounds.width / 2);
BodyDef enemyBodyDef = new BodyDef();
enemyBodyDef.type = BodyType.DynamicBody;
enemyBodyDef.position.x = bounds.x;
enemyBodyDef.position.y = bounds.y;
Body objectBody = world.createBody(enemyBodyDef);
FixtureDef objectFixtureDef = new FixtureDef();
objectFixtureDef.shape = objectPoly;
// objectBody.setUserData(userData);
objectFixtureDef.restitution = .025f;
Fixture fixture = objectBody.createFixture(objectFixtureDef);
fixture.setUserData(userData);
objectBody.setLinearDamping(2f);
objectBody.setGravityScale(.4f);
objectBody.setFixedRotation(true);
objectPoly.dispose();
numEnterPoints++;
// add a sensor on the bottom to check if touching ground (for jumping)
PolygonShape polygonShape = new PolygonShape();
polygonShape.setAsBox(
bounds.width / 3, bounds.height / 8, new Vector2(0, -bounds.height / 2), 0);
objectFixtureDef = new FixtureDef();
objectFixtureDef.shape = polygonShape;
objectFixtureDef.isSensor = true;
Fixture footSensorFixture = objectBody.createFixture(objectFixtureDef);
footSensorFixture.setUserData(new UserData(numEnterPoints, ModelType.FOOT_SENSOR, id));
// add a sensor on left side to check if touching wall (for grappling)
PolygonShape polygonShape2 = new PolygonShape();
polygonShape2.setAsBox(
bounds.width / 8, bounds.height / 3, new Vector2(-bounds.width / 2, 0), 0);
objectFixtureDef = new FixtureDef();
objectFixtureDef.shape = polygonShape2;
objectFixtureDef.isSensor = true;
Fixture leftSideSensorFixture = objectBody.createFixture(objectFixtureDef);
leftSideSensorFixture.setUserData(new UserData(numEnterPoints, ModelType.LEFT_SIDE_SENSOR, id));
// add a sensor on right side to check if touching wall (for grappling)
polygonShape2.setAsBox(
bounds.width / 8, bounds.height / 3, new Vector2(bounds.width / 2, 0), 0);
objectFixtureDef = new FixtureDef();
objectFixtureDef.shape = polygonShape2;
objectFixtureDef.isSensor = true;
Fixture rightSideSensorFixture = objectBody.createFixture(objectFixtureDef);
rightSideSensorFixture.setUserData(
new UserData(numEnterPoints, ModelType.RIGHT_SIDE_SENSOR, id));
return fixture;
}
/*Boundaries game screen*/
private void createLayout() {
// down bound
BodyDef bdef = new BodyDef();
bdef.position.set(0 / GameScreenManager.PPM_W, referansDown / GameScreenManager.PPM_H);
bdef.type = BodyDef.BodyType.StaticBody;
Body body = world.createBody(bdef);
PolygonShape shape = new PolygonShape();
shape.setAsBox(GameScreenManager.WIDTH, 1);
FixtureDef fdef = new FixtureDef();
fdef.shape = shape;
fdef.filter.categoryBits = CollisionVar.BIT_SCREEN;
fdef.filter.maskBits =
CollisionVar.BIT_SCREEN | CollisionVar.BIT_BALL | CollisionVar.BIT_PLAYER;
body.createFixture(fdef).setUserData("down");
// top bound
bdef.position.set(0 / GameScreenManager.PPM_W, referansTop / GameScreenManager.PPM_H);
bdef.type = BodyDef.BodyType.StaticBody;
body = world.createBody(bdef);
shape.setAsBox(GameScreenManager.WIDTH, 1);
fdef.shape = shape;
fdef.filter.categoryBits = CollisionVar.BIT_SCREEN;
fdef.filter.maskBits =
CollisionVar.BIT_SCREEN | CollisionVar.BIT_BALL | CollisionVar.BIT_PLAYER;
body.createFixture(fdef).setUserData("top");
// left bound
bdef.position.set(0 / GameScreenManager.PPM_W, 80 / GameScreenManager.PPM_H);
bdef.type = BodyDef.BodyType.StaticBody;
body = world.createBody(bdef);
shape.setAsBox(0, GameScreenManager.HEIGHT);
fdef.shape = shape;
fdef.filter.categoryBits = CollisionVar.BIT_SCREEN;
fdef.filter.maskBits =
CollisionVar.BIT_SCREEN | CollisionVar.BIT_BALL | CollisionVar.BIT_PLAYER;
body.createFixture(fdef).setUserData("left");
// right bound
bdef.position.set(GameScreenManager.WIDTH + 1, 0 / GameScreenManager.PPM_H);
bdef.type = BodyDef.BodyType.StaticBody;
body = world.createBody(bdef);
fdef.filter.categoryBits = CollisionVar.BIT_SCREEN;
fdef.filter.maskBits =
CollisionVar.BIT_SCREEN | CollisionVar.BIT_BALL | CollisionVar.BIT_PLAYER;
shape.setAsBox(0, GameScreenManager.HEIGHT);
fdef.shape = shape;
body.createFixture(fdef).setUserData("right");
}
public void createIceBall() {
// gear base
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyType.StaticBody;
bodyDef.position.x = x;
bodyDef.position.y = y;
CircleShape circleShape = new CircleShape();
circleShape.setRadius(1);
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.isSensor = true;
fixtureDef.shape = circleShape;
gearBody = world.createBody(bodyDef);
gearBody.createFixture(fixtureDef);
circleShape = new CircleShape();
circleShape.setRadius(size);
BodyDef boxBodyDef = new BodyDef();
boxBodyDef.type = BodyType.DynamicBody;
boxBodyDef.position.x = x;
boxBodyDef.position.y = y;
fixtureDef = new FixtureDef();
fixtureDef.shape = circleShape;
fixtureDef.friction = 0f;
fixtureDef.density = 4.10f;
fixtureDef.restitution = 1.5f;
fixtureDef.isSensor = true;
fixtureDef.filter.groupIndex = -1;
gearBase = world.createBody(boxBodyDef);
SpriteInfo spriteTemp = new SpriteInfo(assets.getSprite("star"));
spriteTemp.setName("star");
gearBase.setUserData(spriteTemp);
gearBase.createFixture(fixtureDef);
// iceBody.createFixture(circleShape, .1f);
RevoluteJointDef wheeljointDef = new RevoluteJointDef();
wheeljointDef.bodyA = gearBase;
wheeljointDef.bodyB = gearBody;
wheeljointDef.localAnchorA.y = 0;
wheeljointDef.localAnchorB.y = 0;
wheeljointDef.motorSpeed = .5f;
wheeljointDef.enableMotor = true;
wheeljointDef.maxMotorTorque = 100000f;
// Joint joint =
// wheeljointDef.bodyA.getWorld().createJoint(wheeljointDef);
world.createJoint(wheeljointDef);
circleShape.dispose();
}
public void createCheckpointSensor(float x, float y, Vector2 heading) {
// First we create a body definition
BodyDef bodyDef = new BodyDef();
// We set our body to dynamic, for something like ground which doesn't move we would set it to
// StaticBody
bodyDef.type = BodyDef.BodyType.StaticBody;
// Set our body's starting position in the world
bodyDef.position.set(x, y);
// Create our body in the world using our body definition
Body body = world_.createBody(bodyDef);
// Create a circle shape and set its radius to 6
CircleShape circle = new CircleShape();
circle.setRadius(0.25f);
// Create a fixture definition to apply our shape to
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = circle;
fixtureDef.isSensor = true;
fixtureDef.filter.maskBits = ENTITY_ENEMY;
fixtureDef.filter.categoryBits = SENSOR_NAVIGATION;
// Create our fixture and attach it to the body
Fixture fix = body.createFixture(fixtureDef);
fix.setUserData(heading);
// Remember to dispose of any shapes after you're done with them!
// BodyDef and FixtureDef don't need disposing, but shapes do.
circle.dispose();
}
private void createCoins() {
coins = new Array<Coin>();
MapLayer layer = tileMap.getLayers().get("Coins");
BodyDef bdef = new BodyDef();
FixtureDef fdef = new FixtureDef();
for (MapObject mo : layer.getObjects()) {
bdef.type = BodyType.StaticBody;
float x = mo.getProperties().get("x", Float.class) / PPM;
float y = mo.getProperties().get("y", Float.class) / PPM;
bdef.position.set(x, y);
CircleShape cShape = new CircleShape();
cShape.setRadius(8 / PPM);
fdef.shape = cShape;
fdef.isSensor = true;
fdef.filter.categoryBits = B2DVars.BIT_COINS;
fdef.filter.maskBits = B2DVars.BIT_PLAYER;
Body body = world.createBody(bdef);
body.createFixture(fdef).setUserData("coin");
Coin c = new Coin(body);
coins.add(c);
body.setUserData(c);
}
}
public void setUp() {
BodyDef bodyDef = new BodyDef();
bodyDef.position.set(x + width / 2, y + height / 2);
bodyDef.type = BodyDef.BodyType.KinematicBody;
PolygonShape shape = new PolygonShape();
shape.setAsBox(width / 2, height / 2);
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = shape;
body = world.createBody(bodyDef);
body.createFixture(fixtureDef);
body.setUserData(Constants.robotNinjaID);
body.setLinearVelocity(Constants.standardVelocity);
sprite = new Sprite(texture);
sprite.setSize(width, height);
sprite.setOrigin(width / 2, height / 2);
sprite.flip(false, flipy);
sprite.setPosition(x, y);
dead = false;
}
/**
* * Filtered version of createRectangularBody Category is who I am, Group filters GameObjects of
* the same class as mine so we dont collide, Mask is who is allowed to collide With Me Default
* filter values: categoryBits = 0x0001, maskBits = -1, groupIndex = 0 Leaving them at default
* would be the same as not passing such argument (use if that is the intended result) **
*/
public static Body createRectangularBody(
float x,
float y,
float halfWidth,
float halfHeight,
short category,
short mask,
short group,
GameEntity myGameObjectIndentifier) {
bodyDef.type = BodyType.DynamicBody;
// The body is originally instantiated at the Bottom-Left position
bodyDef.position.set((x + halfWidth) / PPM, (y + halfHeight) / PPM);
PolygonShape shape = new PolygonShape();
shape.setAsBox(halfWidth / PPM, halfHeight / PPM);
fixtureDef.shape = shape;
fixtureDef.filter.categoryBits = category;
fixtureDef.filter.maskBits = mask;
fixtureDef.filter.groupIndex = group;
Body body = WORLD.createBody(bodyDef);
body.createFixture(fixtureDef).setUserData(myGameObjectIndentifier);
body.setLinearDamping(1);
shape.dispose();
return body;
}
private void createBoxes() {
// next we create 50 boxes at random locations above the ground
// body. First we create a nice polygon representing a box 2 meters
// wide and high.
PolygonShape boxPoly = new PolygonShape();
boxPoly.setAsBox(1, 1);
// next we create the 50 box bodies using the PolygonShape we just
// defined. This process is similar to the one we used for the ground
// body. Note that we reuse the polygon for each body fixture.
for (int i = 0; i < 20; i++) {
// Create the BodyDef, set a random position above the
// ground and create a new body
BodyDef boxBodyDef = new BodyDef();
boxBodyDef.type = BodyType.DynamicBody;
boxBodyDef.position.x = -24 + (float) (Math.random() * 48);
boxBodyDef.position.y = 10 + (float) (Math.random() * 100);
Body boxBody = world.createBody(boxBodyDef);
boxBody.createFixture(boxPoly, 1);
// add the box to our list of boxes
boxes.add(boxBody);
}
// we are done, all that's left is disposing the boxPoly
boxPoly.dispose();
}
public void defineMario() {
BodyDef bdef = new BodyDef();
bdef.position.set(1, 1);
bdef.type = BodyDef.BodyType.DynamicBody;
b2body = world.createBody(bdef);
FixtureDef fdef = new FixtureDef();
PolygonShape cuerpito = new PolygonShape();
Vector2[] cuerpo = new Vector2[4];
cuerpo[0] = new Vector2(-10, 20).scl(1 / MegaCatastrofeNuclear.PPM);
cuerpo[1] = new Vector2(5, 20).scl(1 / MegaCatastrofeNuclear.PPM);
cuerpo[2] = new Vector2(-10, -25).scl(1 / MegaCatastrofeNuclear.PPM);
cuerpo[3] = new Vector2(5, -25).scl(1 / MegaCatastrofeNuclear.PPM);
cuerpito.set(cuerpo);
fdef.filter.categoryBits = MegaCatastrofeNuclear.PLAYER_BIT;
fdef.filter.maskBits =
MegaCatastrofeNuclear.GROUND_BIT
| MegaCatastrofeNuclear.COIN_BIT
| MegaCatastrofeNuclear.BRICK_BIT
| MegaCatastrofeNuclear.ENEMY_BIT
| MegaCatastrofeNuclear.OBJECT_BIT
| MegaCatastrofeNuclear.ENEMYY_BIT
| MegaCatastrofeNuclear.ITEM_BIT;
fdef.shape = cuerpito;
b2body.createFixture(fdef);
}
public void createFixtures(Body body) {
PolygonShape boxPoly = new PolygonShape();
boxPoly.setAsBox(dimension.x / 2, dimension.y / 2);
body.createFixture(boxPoly, 1);
boxPoly.dispose();
}
@Override
public List<Body> createFixtures(World world, Physics physics, Entity e) {
List<Body> bodies = super.createFixtures(world, physics, e);
Body torso = bodies.get(0);
PolygonShape torsoShape = new PolygonShape();
float widthHalf = Math.max(0.0001f, Math.abs(vec1.x - vec2.x));
float heightHalf = Math.max(0.0001f, Math.abs(vec1.y - vec2.y));
torsoShape.setAsBox(widthHalf, heightHalf);
torso.createFixture(torsoShape, 5.0f);
Vector2 relHipAnchor = new Vector2(0, -heightHalf * 0.95f);
Vector2 hipAnchor = torso.getWorldPoint(relHipAnchor);
System.out.println(relHipAnchor);
CircleShape hipCircle = new CircleShape();
hipCircle.setRadius(widthHalf);
hipCircle.setPosition(hipAnchor);
FixtureDef fd = new FixtureDef();
fd.density = 1.0f;
fd.shape = hipCircle;
fd.filter.groupIndex = -1;
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(relHipAnchor);
Body hip = torso.getWorld().createBody(bd);
hip.createFixture(fd);
JointDef jDef = new JointDef();
jDef.type = JointType.WheelJoint;
RevoluteJointDef jd = new RevoluteJointDef();
WheelJointDef wd = new WheelJointDef();
wd.initialize(torso, hip, hipAnchor, new Vector2(0.0f, 1.0f));
wd.collideConnected = false;
wd.maxMotorTorque = 400.0f;
wd.enableMotor = true;
wd.motorSpeed = 1.0f;
// Joint motorJoint = (RevoluteJoint) torso.getWorld().createJoint(jd);
bodies.add(torso);
// TODO add all bodies
return bodies;
}
private void createBoxAtPos(Body body) {
FixtureDef fixtureDef = new FixtureDef();
PolygonShape shape = new PolygonShape();
shape.setAsBox(1f, 1f);
fixtureDef.shape = shape;
fixtureDef.density = 10f;
fixtureDef.restitution = 0.2f;
Gdx.app.log(TAG, "creating body with pos: " + body.getPosition());
body.createFixture(fixtureDef);
}
public void defineBigMario() {
Vector2 marioPosition = b2body.getPosition();
world.destroyBody(b2body);
BodyDef bDef = new BodyDef();
bDef.position.set(marioPosition.add(0 / MarioBros.PPM, 10 / MarioBros.PPM));
bDef.type = BodyDef.BodyType.DynamicBody;
b2body = world.createBody(bDef);
FixtureDef fdef = new FixtureDef();
CircleShape shape = new CircleShape();
shape.setRadius(6 / MarioBros.PPM);
fdef.filter.categoryBits = MarioBros.MARIO_BIT;
fdef.filter.maskBits =
MarioBros.GROUND_BIT
| MarioBros.COIN_BIT
| MarioBros.BRICK_BIT
| MarioBros.ENEMY_BIT
| MarioBros.OBJECT_BIT
| MarioBros.ENEMY_HEAD_BIT
| MarioBros.ITEM_BIT;
fdef.shape = shape;
b2body.createFixture(fdef);
shape.setPosition(new Vector2(0, -14 / MarioBros.PPM));
fdef.shape = shape;
b2body.createFixture(fdef).setUserData(this);
EdgeShape head = new EdgeShape();
head.set(
new Vector2(-2 / MarioBros.PPM, 6 / MarioBros.PPM),
new Vector2(2 / MarioBros.PPM, 6 / MarioBros.PPM));
fdef.filter.categoryBits = MarioBros.MARIO_HEAD_BIT;
fdef.filter.maskBits = MarioBros.BRICK_BIT | MarioBros.COIN_BIT;
fdef.shape = head;
fdef.isSensor = true;
b2body.createFixture(fdef).setUserData(this);
timeToDefineBigMario = false;
}
public static Body createWall(World world, float x, float y, float width, float height) {
BodyDef bodyDef = new BodyDef();
bodyDef.position.set(new Vector2(x, y));
Body body = world.createBody(bodyDef);
PolygonShape shape = new PolygonShape();
shape.setAsBox(width / 2, height / 2);
Fixture fixture = body.createFixture(shape, Constants.WALL_DENSITY);
body.setUserData(new WallUserData());
shape.dispose();
return body;
}
public void createBody() {
BodyDef bdef = getBodyDef();
FixtureDef fdef = getFixtureDef();
if (mBody != null) {
mWorld.removeBodySafely(mBody);
}
mBody = mWorld.addBody(bdef);
Fixture fix = mBody.createFixture(fdef);
bodyCreated(mBody, fix);
}
private void createPlayer() {
BodyDef bdef = new BodyDef();
PolygonShape shape = new PolygonShape();
FixtureDef fdef = new FixtureDef();
fdef.shape = shape;
bdef.position.set(160 / PPM, 200 / PPM);
bdef.type = BodyType.DynamicBody;
Body body = world.createBody(bdef);
shape.setAsBox(13 / PPM, 13 / PPM);
fdef.filter.categoryBits = (B2DVars.BIT_PLAYER);
fdef.filter.maskBits = B2DVars.BIT_BLOCKS;
body.createFixture(fdef).setUserData("player");
shape.setAsBox(13 / PPM, 13 / PPM, new Vector2(0, -13 / PPM), 0);
fdef.shape = shape;
fdef.filter.categoryBits = (B2DVars.BIT_PLAYER);
fdef.filter.maskBits = B2DVars.BIT_BLOCKS | B2DVars.BIT_COINS;
fdef.isSensor = true;
body.createFixture(fdef).setUserData("foot");
player = new Player(body);
body.setUserData(player);
}
private void createCircleAtPos(Body body) {
FixtureDef fixtureDef = new FixtureDef();
CircleShape shape = new CircleShape();
shape.setRadius(1f);
fixtureDef.shape = shape;
fixtureDef.density = 5f;
fixtureDef.restitution = 0.8f;
Gdx.app.log(TAG, "creating body with pos: " + body.getPosition());
body.createFixture(fixtureDef);
}
private void defineMario() {
BodyDef bdef = new BodyDef();
bdef.position.set(32 / MarioBros.PPM, 32 / MarioBros.PPM);
bdef.type = BodyDef.BodyType.DynamicBody;
b2body = world.createBody(bdef);
FixtureDef fdef = new FixtureDef();
CircleShape shape = new CircleShape();
shape.setRadius(6 / MarioBros.PPM);
fdef.shape = shape;
b2body.createFixture(fdef);
}
private void definePlayer() {
BodyDef bodyDef = new BodyDef();
bodyDef.position.set(32 / Gyaya.PPM, 32 / Gyaya.PPM);
bodyDef.type = BodyDef.BodyType.DynamicBody;
b2body = world.createBody(bodyDef);
FixtureDef fixtureDef = new FixtureDef();
CircleShape shape = new CircleShape();
shape.setRadius(8f / Gyaya.PPM);
fixtureDef.filter.categoryBits = Gyaya.PLAYER_BIT;
fixtureDef.filter.maskBits =
Gyaya.GROUND_BIT
| Gyaya.BRICK_BIT
| Gyaya.COIN_BIT
| Gyaya.OBJECT_BIT
| Gyaya.ENEMY_BIT
| Gyaya.ENEMY_HEAD_BIT;
fixtureDef.shape = shape;
b2body.createFixture(fixtureDef);
shape.setPosition(new Vector2(0, 4 / Gyaya.PPM));
shape.setRadius(6f / Gyaya.PPM);
b2body.createFixture(fixtureDef);
EdgeShape head = new EdgeShape();
head.set(
new Vector2(-3 / Gyaya.PPM, 10f / Gyaya.PPM), new Vector2(3 / Gyaya.PPM, 10f / Gyaya.PPM));
fixtureDef.shape = head;
fixtureDef.isSensor = true;
b2body.createFixture(fixtureDef).setUserData("head");
EdgeShape feet = new EdgeShape();
feet.set(
new Vector2(-6 / Gyaya.PPM, -9f / Gyaya.PPM), new Vector2(6 / Gyaya.PPM, -9f / Gyaya.PPM));
fixtureDef.shape = feet;
fixtureDef.isSensor = true;
b2body.createFixture(fixtureDef).setUserData("feet");
}
/*
* (non-Javadoc)
*
* @see
* com.rougeprogrammers.shootthecat.objects.models.Model#createBody(float,
* float)
*/
@Override
protected Body createBody(float x, float y) {
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyType.KinematicBody;
bodyDef.position.set(x * Constants.WORLD_TO_BOX, y * Constants.WORLD_TO_BOX);
Body body = gameStage.getWorld().createBody(bodyDef);
PolygonShape shape = new PolygonShape();
shape.setAsBox(
getWidth() / 2 * Constants.WORLD_TO_BOX, getHeight() / 2 * Constants.WORLD_TO_BOX);
body.createFixture(shape, Obstacle.DENSITY);
shape.dispose();
body.setUserData(new ObjectType(Type.THORN, index));
return body;
}
@Override
public void create() { // creates everything you need LOL
batch = new SpriteBatch();
img = new Texture("Alien.png");
sprite = new Sprite(img);
// sets the sprite in the middle of the screen
sprite.setPosition(
Gdx.graphics.getWidth() / 2 - sprite.getWidth() / 2, Gdx.graphics.getHeight() / 2);
// This is were the magic happens, this is the "physics world" created where the gravity is set
// to 98
// The 'f' makes 98 a float, the true means that it is active, vector 2d just means it takes x y
// coor
world = new World(new Vector2(0, -98f), true);
// The body is the "object" set in the world, BodyDef makes the world aware of the object
// basically so world Senpai notices
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyDef.BodyType.DynamicBody;
// using 1 to 1 dimensions, meaning 1 in physics engine is 1px
// set the body to the same position as the sprite
bodyDef.position.set(sprite.getX(), sprite.getY());
// now create the body in the world!
body = world.createBody(bodyDef);
// now make the "shape" of the body that you just created
shape = new PolygonShape();
// in this example I made a box (you can make circles too and stuff) that surrounds the sprite
// aka the hit-box
// so make the shape the same dimensions as the sprite image we are using
shape.setAsBox(sprite.getWidth() / 2, sprite.getHeight() / 2);
// FixtureDef is used to add physical properties to the shape
// Ex. density, mass, area etc.
fixtureDef = new FixtureDef();
// now assign the FixtureDef to the new shape that we just made
fixtureDef.shape = shape;
// Adding density using FixtureDef & adding it to the body so again world senpai notices
fixtureDef.density = 1f;
fixture = body.createFixture(fixtureDef);
// the shape can be disposed to reduce clutter that will slow down the game
shape.dispose();
}
/**
* Creates and applies the fixtures defined in the editor. The name parameter is used to retrieve
* the right fixture from the loaded file. <br>
* <br>
* The body reference point (the red cross in the tool) is by default located at the bottom left
* corner of the image. This reference point will be put right over the BodyDef position point.
* Therefore, you should place this reference point carefully to let you place your body in your
* world easily with its BodyDef.position point. Note that to draw an image at the position of
* your body, you will need to know this reference point (see {@link #getOrigin(java.lang.String,
* float)}. <br>
* <br>
* Also, saved shapes are normalized. As shown in the tool, the width of the image is considered
* to be always 1 meter. Thus, you need to provide a scale factor so the polygons get resized
* according to your needs (not every body is 1 meter large in your game, I guess).
*
* @param body The Box2d body you want to attach the fixture to.
* @param name The name of the fixture you want to load.
* @param def The fixture parameters to apply to the created body fixture.
* @param scale The desired scale of the body. The default width is 1.
*/
public void attachFixture(Body body, String name, FixtureDef def, float scale) {
RigidBodyModel rbModel = this.MODEL.RIGIDBODIES.get(name);
if (rbModel == null) throw new RuntimeException("Name '" + name + "' was not found.");
Vector2 origin = this.VEC.set(rbModel.ORIGIN).scl(scale);
for (int i = 0, n = rbModel.POLYGONS.size(); i < n; i++) {
PolygonModel polygon = rbModel.POLYGONS.get(i);
Vector2[] vertices = polygon.buffer;
for (int j = 0, n2 = vertices.length; j < n2; j++) {
vertices[j] = newVec().set(polygon.VERTICES.get(j)).scl(scale);
vertices[j].sub(origin);
}
this.POLYGONSHAPE.set(vertices);
def.shape = this.POLYGONSHAPE;
body.createFixture(def);
for (int j = 0, n2 = vertices.length; j < n2; j++) {
free(vertices[j]);
}
}
for (int i = 0, n = rbModel.CIRCLES.size(); i < n; i++) {
CircleModel circle = rbModel.CIRCLES.get(i);
Vector2 center = newVec().set(circle.CENTER).scl(scale);
float radius = circle.radius * scale;
this.CIRCLESHAPE.setPosition(center);
this.CIRCLESHAPE.setRadius(radius);
def.shape = this.CIRCLESHAPE;
body.createFixture(def);
free(center);
}
}
/**
* Creates and applies the fixtures defined in the editor. The name parameter is used to retrieve
* the right fixture from the loaded file. <br>
* <br>
* The body reference point (the red cross in the tool) is by default located at the bottom left
* corner of the image. This reference point will be put right over the BodyDef position point.
* Therefore, you should place this reference point carefully to let you place your body in your
* world easily with its BodyDef.position point. Note that to draw an image at the position of
* your body, you will need to know this reference point (see {@link #getOrigin(java.lang.String,
* float)}. <br>
* <br>
* Also, saved shapes are normalized. As shown in the tool, the width of the image is considered
* to be always 1 meter. Thus, you need to provide a scale factor so the polygons get resized
* according to your needs (not every body is 1 meter large in your game, I guess).
*
* @param body The Box2d body you want to attach the fixture to.
* @param name The name of the fixture you want to load.
* @param fd The fixture parameters to apply to the created body fixture.
* @param scale The desired scale of the body. The default width is 1.
*/
public void attachFixture(Body body, String name, FixtureDef fd, float scale) {
RigidBodyModel rbModel = model.rigidBodies.get(name);
if (rbModel == null) throw new RuntimeException("Name '" + name + "' was not found.");
Vector2 origin = vec.set(rbModel.origin).scl(scale);
for (int i = 0, n = rbModel.polygons.size(); i < n; i++) {
PolygonModel polygon = rbModel.polygons.get(i);
Vector2[] vertices = polygon.buffer;
for (int ii = 0, nn = vertices.length; ii < nn; ii++) {
vertices[ii] = newVec().set(polygon.vertices.get(ii)).scl(scale);
vertices[ii].sub(origin);
}
polygonShape.set(vertices);
fd.shape = polygonShape;
body.createFixture(fd);
for (int ii = 0, nn = vertices.length; ii < nn; ii++) {
free(vertices[ii]);
}
}
for (int i = 0, n = rbModel.circles.size(); i < n; i++) {
CircleModel circle = rbModel.circles.get(i);
Vector2 center = newVec().set(circle.center).scl(scale);
float radius = circle.radius * scale;
circleShape.setPosition(center);
circleShape.setRadius(radius);
fd.shape = circleShape;
body.createFixture(fd);
free(center);
}
}
private static void addShape(
PhysixSystem physixSystem, Rectangle rect, int tileWidth, int tileHeight) {
float width = rect.width * tileWidth;
float height = rect.height * tileHeight;
float x = rect.x * tileWidth + width / 2;
float y = rect.y * tileHeight + height / 2;
PhysixBodyDef bodyDef =
new PhysixBodyDef(BodyDef.BodyType.StaticBody, physixSystem)
.position(x, y)
.fixedRotation(false);
Body body = physixSystem.getWorld().createBody(bodyDef);
body.createFixture(
new PhysixFixtureDef(physixSystem).density(1).friction(0.5f).shapeBox(width, height));
}
public static Body resizeSquareBody(Body body, float newWidth, float newHeight) {
PolygonShape shape = new PolygonShape();
shape.setAsBox(newWidth / PPM, newHeight / PPM);
fixtureDef.shape = shape;
// Delete the previous fixture
body.destroyFixture(body.getFixtureList().get(0));
// Add the new fixture
body.createFixture(fixtureDef);
shape.dispose();
return body;
}
public static Body createMovingPlatform(
World world, float x, float y, float width, float height, float restituition) {
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyDef.BodyType.KinematicBody;
bodyDef.position.set(new Vector2(x, y));
Body body = world.createBody(bodyDef);
PolygonShape shape = new PolygonShape();
shape.setAsBox(width / 2, height / 2);
Fixture fixture = body.createFixture(shape, Constants.GROUND_DENSITY);
fixture.setRestitution(restituition);
body.setUserData(new GroundUserData());
shape.dispose();
return body;
}
public static void createBody(World world, SceneElement e, ValueMap valueMap) {
float x = valueMap.getValue(e, SceneElement.VAR_X, 0f) / WORLD_SCALE;
float y = valueMap.getValue(e, SceneElement.VAR_Y, 0f) / WORLD_SCALE;
float width = valueMap.getValue(e, SceneElement.VAR_WIDTH, 1) / WORLD_SCALE;
float height = valueMap.getValue(e, SceneElement.VAR_HEIGHT, 1) / WORLD_SCALE;
// TODO what if corner is not center?
PhType phType = valueMap.getValue(e, PhysicsEf.VAR_PH_TYPE, PhType.DYNAMIC);
PhShape phShape = valueMap.getValue(e, PhysicsEf.VAR_PH_SHAPE, PhShape.RECTANGULAR);
Shape s = null;
switch (phShape) {
case CIRCULAR:
s = new CircleShape();
s.setRadius(width / 2);
break;
default:
s = new PolygonShape();
((PolygonShape) s).setAsBox(width / 2, height / 2);
}
BodyDef bd = new BodyDef();
switch (phType) {
case STATIC:
bd.type = BodyType.StaticBody;
break;
case DYNAMIC:
bd.type = BodyType.DynamicBody;
break;
}
bd.position.set(x, y);
bd.angle = valueMap.getValue(e, SceneElement.VAR_ROTATION, 0);
FixtureDef fixture = new FixtureDef();
fixture.shape = s;
fixture.density = valueMap.getValue(e, PhysicsEf.VAR_PH_DENSITY, 1f);
fixture.friction = valueMap.getValue(e, PhysicsEf.VAR_PH_FRICTION, 1f);
fixture.restitution = valueMap.getValue(e, PhysicsEf.VAR_PH_RESTITUTION, 1f);
Body body = world.createBody(bd);
body.createFixture(fixture);
body.resetMassData();
valueMap.setValue(e.getId(), VAR_PH_BODY, body);
}
private Body addFinish(World world, Vector2 position) {
final BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyDef.BodyType.StaticBody;
final Body body = world.createBody(bodyDef);
body.setTransform(position.x + offset.x, position.y + offset.y, 0);
final PolygonShape shape = new PolygonShape();
shape.setAsBox(0.1f, 0.1f);
final FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = shape;
fixtureDef.isSensor = true;
final Fixture fixture = body.createFixture(fixtureDef);
fixture.setUserData("finish");
shape.dispose();
return body;
}
private void addBody(World world, float x, float y, boolean dirt) {
final BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyDef.BodyType.StaticBody;
final Body body = world.createBody(bodyDef);
body.setTransform(x + 0.5f, y + 0.5f, 0);
final CircleShape shape = new CircleShape();
shape.setRadius(0.1f);
final FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = shape;
final Fixture fixture = body.createFixture(fixtureDef);
shape.dispose();
if (dirt) {
dirts.add(fixture);
}
}
