public void update(final DisplayedScreenWorld world, final int deltaTime) {
this.m_position += deltaTime;
final ArrayList<DisplayedScreenMap> maps = world.getMaps();
for (int i = maps.size() - 1; i >= 0; --i) {
final DisplayedScreenMap map = maps.get(i);
if (map != null) {
final DisplayedScreenElement[] elts = map.getElements();
if (elts != null) {
for (final DisplayedScreenElement elt : elts) {
if (elt.isVisible()) {
final int id = elt.getElement().getCommonProperties().getId();
if (Sea.WATER_ELEMENTS.contains(id)) {
final float x = elt.getWorldCellX();
final float y = elt.getWorldCellY();
final float d =
(float) Math.sqrt(x * x + y * y) + this.m_speed * this.m_position / 1000.0f;
float amplitude = this.m_amplitude * MathHelper.sinf(6.2831855f * d / this.m_width);
if (amplitude < 0.0f) {
amplitude *= 0.2f;
}
final BatchTransformer batchTransformer = elt.getEntitySprite().getTransformer();
final float tx = batchTransformer.getMatrix().getBuffer()[12];
final float ty = batchTransformer.getMatrix().getBuffer()[13];
batchTransformer
.getMatrix()
.set(
new float[] {
1.0f + amplitude,
0.0f,
0.0f,
0.0f,
0.0f,
1.0f + amplitude,
0.0f,
0.0f,
0.0f,
0.0f,
0.0f,
0.0f,
tx,
ty,
0.0f,
1.0f
});
}
}
}
}
}
}
}