63 lines
2.0 KiB
Java
Executable File
63 lines
2.0 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.Bukkit;
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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 Rotate")
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@Description("Rotates vectors around a rotation center and a rotation axis by an angle.")
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@Examples({"set {_point} to vector 1, 2, 3",
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"set {_point} to {_point} rotated around vector 0, 1, 0 at player with angle 180",
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"#{_point} is now equal to the vector -1, 2, -3",
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"#vector 0, 1, 0 creates a vector along the y-axis, which is used as the rotation axis"})
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public class ExprVectorRotate extends SimpleExpression<Vector> {
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private Expression<Vector> vectors;
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private Expression<Vector> axis;
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private Expression<Number> angle;
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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 matchedPattern, Kleenean arg2, SkriptParser.ParseResult parseResult) {
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vectors = (Expression<Vector>) expr[0];
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axis = (Expression<Vector>) expr[1];
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angle = (Expression<Number>) 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(arg0, arg1) + " rotated around " + axis.toString(arg0, arg1) + " with angle " + angle.toString(arg0, arg1);
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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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float a = angle.getSingle(e).floatValue();
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a = -a; //Skript uses clockwise and VectorMath anti-clockwise rotation
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Vector ax = axis.getSingle(e).clone().normalize();
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return VectorLib.rotate(VectorLib.clone(vectors.getArray(e)), ax, a);
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}
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}
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