@Override
public void getRgb(
int startX, int startY, int width, int height, int[] rgbArray, int offset, int scanSize) {
Asserts.checkState(isReady(), "Cannot getRgb() a non-ready image");
if (canvas == null) {
canvas = img.getOwnerDocument().createCanvasElement();
canvas.setHeight(img.getHeight());
canvas.setWidth(img.getWidth());
canvas.getContext2d().drawImage(img, 0, 0);
// img.getOwnerDocument().getBody().appendChild(canvas);
}
Context2d ctx = canvas.getContext2d();
ImageData imageData = ctx.getImageData(startX, startY, width, height);
CanvasPixelArray pixelData = imageData.getData();
int i = 0;
int dst = offset;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int r = pixelData.get(i++);
int g = pixelData.get(i++);
int b = pixelData.get(i++);
int a = pixelData.get(i++);
rgbArray[dst + x] = a << 24 | r << 16 | g << 8 | b;
}
dst += scanSize;
}
}
@Override
public Surface setFillPattern(Pattern pattern) {
// TODO: Add it to the state stack.
Asserts.checkArgument(pattern instanceof GLPattern);
this.fillPattern = ((GLPattern) pattern).image();
return this;
}
/**
* Set the current sprite via the index.
*
* <p>The index is an integer between 0 and the number of sprites (@see {@link #numSprites()})
*/
public void setSprite(int index) {
Asserts.checkElementIndex(index, spriteImages.size(), "Invalid sprite index");
if (index != currentId) {
current = spriteImages.get(index);
currentId = index;
updateLayer();
}
}
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);
}
}
@Override
public Region subImage(float sx, float sy, float swidth, float sheight) {
Asserts.checkArgument(
sx >= 0
&& sy >= 0
&& swidth > 0
&& sheight > 0
&& (sx + swidth) <= width()
&& (sy + sheight) <= height(),
"Invalid bounds for subimage [image="
+ width()
+ "x"
+ height()
+ ", subImage="
+ swidth
+ "x"
+ sheight
+ "+"
+ sx
+ "+"
+ sy
+ "]");
return new JavaImageRegion(this, sx, sy, swidth, sheight);
}
@Override
public Pattern toPattern() {
Asserts.checkState(isReady(), "Cannot generate a pattern from unready image.");
Rectangle2D rect = new Rectangle2D.Float(0, 0, width(), height());
return new JavaPattern(this, new TexturePaint(img, rect));
}
@Override
protected void updateTexture(int tex) {
Asserts.checkState(img != null);
((JavaGLContext) ctx).updateTexture(tex, img);
}
@Override
public void setVolume(float volume) {
Asserts.checkArgument(0f <= volume && volume <= 1f, "Must ensure 0f <= volume <= 1f");
sound.setVolume((int) (volume * 100));
}
@Override
public Surface restore() {
Asserts.checkState(transformStack.size() > 1, "Unbalanced save/restore");
transformStack.remove(transformStack.size() - 1);
return this;
}
/** Set the current sprite via the sprite's id. */
public void setSprite(String id) {
setSprite(Asserts.checkNotNull(spriteIdMap.get(id), "Invalid sprite id"));
}
@Override
public Pattern toPattern() {
Asserts.checkState(isReady(), "Cannot toPattern() a non-ready image");
return new HtmlPattern(this, repeatX, repeatY);
}