protected static Animation.Value onScaleY(final Layer layer) {
Asserts.checkNotNull(layer);
return new Animation.Value() {
public float initial() {
return layer.scaleY();
}
public void set(float value) {
layer.setScaleY(value);
}
};
}
/** Starts a tween on the supplied layer's transparency. */
public Animation.One tweenAlpha(final Layer layer) {
Asserts.checkNotNull(layer);
return tween(
new Animation.Value() {
public float initial() {
return layer.alpha();
}
public void set(float value) {
layer.setAlpha(value);
}
});
}
/**
* Tweens the volume of the supplied sound. Useful for fade-ins and fade-outs. Note, this does not
* play or stop the sound, those must be enacted separately.
*/
public Animation.One tweenVolume(final Sound sound) {
Asserts.checkNotNull(sound);
return tween(
new Animation.Value() {
public float initial() {
return sound.volume();
}
public void set(float value) {
sound.setVolume(value);
}
});
}
/**
* Notes the specified piecement placement, assigns it a claim group and propagates its claim
* information to connected tiles. The tile placement associated with this piecen must have
* already been added via {@link #addPlacement}.
*/
public void addPiecen(Piecen piecen) {
_piecens.put(piecen.loc, piecen);
// make sure a play exists at the appropriate location
Placement play =
Asserts.checkNotNull(
_plays.get(piecen.loc), "Piecen played at location where no tile exists? %s", piecen);
List<TileFeature> flist = Lists.newArrayList();
enumerateGroup(play, play.getFeature(piecen.featureIdx), flist);
int claimGroup = ++_claimGroupCounter;
for (TileFeature feat : flist) {
// one of these calls will result in this piecen's claim group being mapped
getClaim(feat.play).setClaimGroup(feat.feature, claimGroup);
}
}
/** Set the current sprite via the sprite's id. */
public void setSprite(String id) {
setSprite(Asserts.checkNotNull(spriteIdMap.get(id), "Invalid sprite id"));
}