public void scale(float x, float y, float z, boolean updateLocal) {
activate();
// Set unit scale
Matrix4 t = modelInstance.transform;
Matrix4 mat_scale = new Matrix4();
Vector3 s = new Vector3();
t.getScale(s);
mat_scale.scl(1 / s.x, 1 / s.y, 1 / s.z);
t.mul(mat_scale);
// Set target scale
mat_scale.idt();
mat_scale.scl(x, y, z);
t.mul(mat_scale);
// Relevant bullet body update
CollisionShape cs = body.getCollisionShape();
cs.setLocalScaling(new Vector3f(x, y, z));
if (body.isInWorld() && body.isStaticOrKinematicObject()) scene.world.updateSingleAabb(body);
// Child propagation
Vector3f ps = scale();
Matrix4f pt = transform();
Matrix4f ct = new Matrix4f();
Matrix4f ms = new Matrix4f();
ms.setIdentity();
ms.m00 = ps.x;
ms.m11 = ps.y;
ms.m22 = ps.z;
pt.mul(ms);
for (GameObject c : children) {
c.scale(scale().mul(c.localScale), false);
ct.mul(pt, c.localTransform);
c.transform(ct, false);
}
if (parent != null && updateLocal) {
updateLocalScale();
}
}
public void render(float delta) {
if (cameraCache != viewport.getCamera())
cameraCache = (OrthographicCamera) viewport.getCamera();
viewport.getCamera().position.add(speed.x * delta, speed.y * delta, 0f);
for (int i = 0; i < layers.length; i++) {
cameraProjectionCache.set(viewport.getCamera().projection);
cameraProjectionCache.scl(cameraCache.zoom);
batch.setProjectionMatrix(cameraProjectionCache);
batch.begin();
float currentX =
-viewport.getCamera().position.x
* layers[i].parallaxRatio.x
% (layers[i].region.getRegionWidth() + layers[i].padding.x);
if (speed.x < 0) currentX += -(layers[i].region.getRegionWidth() + layers[i].padding.x);
do {
/* Y REPEATING DISABLED:
float currentY = -viewport.getCamera().position.y * layers[i].parallaxRatio.y % (layers[i].region.getRegionHeight() + layers[i].padding.y);
if (speed.y < 0)
currentY += -(layers[i].region.getRegionHeight() + layers[i].padding.y);
do {
batch.draw(layers[i].region,
-viewport.getCamera().viewportWidth / 2 + currentX + layers[i].startPosition.x,
-viewport.getCamera().viewportHeight / 2 + currentY + layers[i].startPosition.y);
currentY += (layers[i].region.getRegionHeight() + layers[i].padding.y);
} while (currentY < viewport.getCamera().viewportHeight);*/
batch.draw(
layers[i].region,
-viewport.getCamera().viewportWidth / 2 + currentX + layers[i].startPosition.x,
-viewport.getCamera().viewportHeight / 2 + layers[i].startPosition.y);
currentX += (layers[i].region.getRegionWidth() + layers[i].padding.x);
} while (currentX < viewport.getCamera().viewportWidth);
batch.end();
}
}