69 lines
2.3 KiB
Java
Executable File
69 lines
2.3 KiB
Java
Executable File
package io.github.bi0qaw.biosphere.expression;
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import ch.njol.skript.doc.Description;
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import ch.njol.skript.doc.Examples;
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import ch.njol.skript.doc.Name;
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import ch.njol.skript.lang.Expression;
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import ch.njol.skript.lang.SkriptParser;
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import ch.njol.skript.lang.util.SimpleExpression;
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import ch.njol.util.Kleenean;
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import org.bukkit.event.Event;
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import org.bukkit.util.Vector;
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import io.github.bi0qaw.biosphere.util.VectorLib;
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import org.jetbrains.annotations.Nullable;
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@Name("Vector Scale")
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@Description("Scales vectors by a scaling factor and an optional direction. The direction parameter adds an additional scaling along the x-, y- and z-axis.")
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@Examples({"set {_circle::*} to circle with radius 1 and density 5",
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"set {_bigcircle::*} to {_circle::*} scaled by 2",
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"#Makes the circle 2 times bigger.",
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"set {_ellipse::*} to {_circle::*} scaled by 1 in direction vector 1, 1, 2",
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"#Makes the circle 2 times bigger in the z-direction but does not change the x- and y-coordinates. This creates an ellipse.",
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"show happy villager at player offset by {_circle::*}",
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"show happy villager at player offset by {_bigcircle::*}",
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"show happy villager at player offset by {_ellipse::*}"})
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public class ExprVectorScale extends SimpleExpression<Vector> {
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private Expression<Vector> vectors;
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private Expression<Number> factor;
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private Expression<Vector> direction;
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@Override
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public Class<? extends Vector> getReturnType() {
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return Vector.class;
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}
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@Override
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public boolean isSingle() {
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return vectors.isSingle();
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}
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@SuppressWarnings("unchecked")
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@Override
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public boolean init(Expression<?>[] expr, int arg1, Kleenean arg2, SkriptParser.ParseResult parseResult) {
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vectors = (Expression<Vector>) expr[0];
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factor = (Expression<Number>) expr[1];
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direction = (Expression<Vector>) expr[2];
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return true;
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}
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@Override
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public String toString(@Nullable Event arg0, boolean arg1) {
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return vectors.toString() + " scaled by " + factor.toString() + " in direction " + direction.toString();
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}
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@Override
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@Nullable
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protected Vector[] get(Event e) {
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double f = factor.getSingle(e).doubleValue();
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if (direction == null) {
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return VectorLib.scale(VectorLib.clone(vectors.getArray(e).clone()), f);
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}
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else {
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return VectorLib.scaleDirectional(VectorLib.clone(vectors.getArray(e)), direction.getSingle(e), f);
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}
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}
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}
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