mirror of
https://github.com/Jozufozu/Flywheel.git
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77 lines
2.4 KiB
Java
77 lines
2.4 KiB
Java
package com.jozufozu.flywheel.util;
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import java.util.function.Supplier;
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import com.mojang.blaze3d.matrix.MatrixStack;
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import net.minecraft.util.Direction;
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import net.minecraft.util.math.vector.Matrix3f;
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import net.minecraft.util.math.vector.Matrix4f;
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import net.minecraft.util.math.vector.Vector3f;
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public class RenderUtil {
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private static final Matrix4f IDENTITY = new Matrix4f();
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static {
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IDENTITY.setIdentity();
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}
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public static Matrix4f getIdentity() {
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return IDENTITY;
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}
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public static Matrix4f copyIdentity() {
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return IDENTITY.copy();
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}
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public static int nextPowerOf2(int a) {
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int h = Integer.highestOneBit(a);
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return (h == a) ? h : (h << 1);
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}
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public static boolean isPowerOf2(int n) {
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int b = n & (n - 1);
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return b == 0 && n != 0;
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}
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public static double lengthSqr(double x, double y, double z) {
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return x * x + y * y + z * z;
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}
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public static double length(double x, double y, double z) {
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return Math.sqrt(lengthSqr(x, y, z));
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}
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public static float[] writeMatrixStack(MatrixStack stack) {
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return writeMatrixStack(stack.last()
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.pose(), stack.last()
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.normal());
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}
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// GPUs want matrices in column major order.
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public static float[] writeMatrixStack(Matrix4f model, Matrix3f normal) {
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return new float[]{model.m00, model.m10, model.m20, model.m30, model.m01, model.m11, model.m21, model.m31, model.m02, model.m12, model.m22, model.m32, model.m03, model.m13, model.m23, model.m33, normal.m00, normal.m10, normal.m20, normal.m01, normal.m11, normal.m21, normal.m02, normal.m12, normal.m22,};
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}
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public static float[] writeMatrix(Matrix4f model) {
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return new float[]{model.m00, model.m10, model.m20, model.m30, model.m01, model.m11, model.m21, model.m31, model.m02, model.m12, model.m22, model.m32, model.m03, model.m13, model.m23, model.m33,};
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}
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public static Supplier<MatrixStack> rotateToFace(Direction facing) {
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return () -> {
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MatrixStack stack = new MatrixStack();
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// MatrixStacker.of(stack)
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// .centre()
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// .rotateY(AngleHelper.horizontalAngle(facing))
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// .rotateX(AngleHelper.verticalAngle(facing))
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// .unCentre();
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stack.last()
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.pose()
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.setTranslation(0.5f, 0.5f, 0.5f);
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stack.mulPose(Vector3f.YP.rotationDegrees(AngleHelper.horizontalAngle(facing)));
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stack.mulPose(Vector3f.XP.rotationDegrees(AngleHelper.verticalAngle(facing)));
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stack.translate(-0.5f, -0.5f, -0.5f);
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return stack;
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};
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}
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}
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