48 lines
1.4 KiB
Java
48 lines
1.4 KiB
Java
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package ihm;
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import javafx.animation.Interpolator;
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import javafx.animation.Transition;
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import javafx.geometry.Rectangle2D;
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import javafx.scene.image.ImageView;
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import javafx.util.Duration;
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public class SpriteAnimation extends Transition {
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private final ImageView imageView;
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private final int count;
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private final int columns;
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private final int offsetX;
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private final int offsetY;
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private final int width;
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private final int height;
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private int lastIndex;
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public SpriteAnimation(
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ImageView imageView,
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Duration duration,
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int count, int columns,
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int offsetX, int offsetY,
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int width, int height) {
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this.imageView = imageView;
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this.count = count;
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this.columns = columns;
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this.offsetX = offsetX;
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this.offsetY = offsetY;
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this.width = width;
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this.height = height;
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setCycleDuration(duration);
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setInterpolator(Interpolator.LINEAR);
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}
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protected void interpolate(double k) {
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final int index = Math.min((int) Math.floor(k * count), count - 1);
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if (index != lastIndex) {
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final int x = (index % columns) * width + offsetX;
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final int y = (index / columns) * height + offsetY;
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imageView.setViewport(new Rectangle2D(x, y, width, height));
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lastIndex = index;
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}
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}
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}
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