mirror of
https://github.com/Jozufozu/Flywheel.git
synced 2025-01-09 13:56:04 +01:00
77 lines
2.4 KiB
Java
77 lines
2.4 KiB
Java
package com.jozufozu.flywheel.util;
|
|
|
|
import java.util.function.Supplier;
|
|
|
|
import com.mojang.blaze3d.matrix.MatrixStack;
|
|
|
|
import net.minecraft.util.Direction;
|
|
import net.minecraft.util.math.vector.Matrix3f;
|
|
import net.minecraft.util.math.vector.Matrix4f;
|
|
import net.minecraft.util.math.vector.Vector3f;
|
|
|
|
public class RenderUtil {
|
|
|
|
private static final Matrix4f IDENTITY = new Matrix4f();
|
|
static {
|
|
IDENTITY.setIdentity();
|
|
}
|
|
|
|
public static Matrix4f getIdentity() {
|
|
return IDENTITY;
|
|
}
|
|
|
|
public static Matrix4f copyIdentity() {
|
|
return IDENTITY.copy();
|
|
}
|
|
|
|
public static int nextPowerOf2(int a) {
|
|
int h = Integer.highestOneBit(a);
|
|
return (h == a) ? h : (h << 1);
|
|
}
|
|
|
|
public static boolean isPowerOf2(int n) {
|
|
int b = n & (n - 1);
|
|
return b == 0 && n != 0;
|
|
}
|
|
|
|
public static double lengthSqr(double x, double y, double z) {
|
|
return x * x + y * y + z * z;
|
|
}
|
|
|
|
public static double length(double x, double y, double z) {
|
|
return Math.sqrt(lengthSqr(x, y, z));
|
|
}
|
|
|
|
public static float[] writeMatrixStack(MatrixStack stack) {
|
|
return writeMatrixStack(stack.last()
|
|
.pose(), stack.last()
|
|
.normal());
|
|
}
|
|
|
|
// GPUs want matrices in column major order.
|
|
public static float[] writeMatrixStack(Matrix4f model, Matrix3f normal) {
|
|
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,};
|
|
}
|
|
|
|
public static float[] writeMatrix(Matrix4f model) {
|
|
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,};
|
|
}
|
|
|
|
public static Supplier<MatrixStack> rotateToFace(Direction facing) {
|
|
return () -> {
|
|
MatrixStack stack = new MatrixStack();
|
|
// MatrixStacker.of(stack)
|
|
// .centre()
|
|
// .rotateY(AngleHelper.horizontalAngle(facing))
|
|
// .rotateX(AngleHelper.verticalAngle(facing))
|
|
// .unCentre();
|
|
stack.last()
|
|
.pose()
|
|
.setTranslation(0.5f, 0.5f, 0.5f);
|
|
stack.mulPose(Vector3f.YP.rotationDegrees(AngleHelper.horizontalAngle(facing)));
|
|
stack.mulPose(Vector3f.XP.rotationDegrees(AngleHelper.verticalAngle(facing)));
|
|
stack.translate(-0.5f, -0.5f, -0.5f);
|
|
return stack;
|
|
};
|
|
}
|
|
}
|