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package demos.xtrans;
import gleem.linalg.*;
/** A quadrilateral of two-dimensional floating-point values which
interpolates between specified start and end values. */
public class InterpolatedQuad2f {
private Quad2f start;
private Quad2f end;
/** Constructs a new InterpolatedQuad2f. By default both the start
and end quadrilaterals have all of their points set to the
origin. */
public InterpolatedQuad2f() {
start = new Quad2f();
end = new Quad2f();
}
/** Returns the starting value for the interpolation. */
public Quad2f getStart() {
return start;
}
/** Sets the starting value for the interpolation. */
public void setStart(Quad2f quad) {
start.set(quad);
}
/** Returns the ending value for the interpolation. */
public Quad2f getEnd() {
return end;
}
/** Sets the ending value for the interpolation. */
public void setEnd(Quad2f quad) {
end.set(quad);
}
/** Gets the current interpolated value at the specified fraction of
interpolation (0.0 - 1.0). */
public Quad2f getCurrent(float fraction) {
return start.times(1.0f - fraction).plus(end.times(fraction));
}
}
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