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Math

lib/math/ provides linear algebra primitives and a random number generator.

TypeFile
Vec2f, Vec3f, Vec4flib/math/Vec{2,3,4}f.mt
Matrix3f, Matrix4flib/math/Matrix{3,4}f.mt
Quaternionlib/math/Quaternion.mt
Randomlib/math/Random.mt

Vectors​

import * from "lib/math/Vec3f.mt";

Vec3f a = new Vec3f(1.0, 2.0, 3.0);
Vec3f b = new Vec3f(4.0, 5.0, 6.0);
Vec3f sum = a.add(b);
float dot = a.dot(b);
print(sum.toString());
print(dot);

Common methods: add, subtract, scale, dot, cross (3D), length, normalize, toString.

Matrices​

Static factories use ::; instance methods use ..

import * from "lib/math/Matrix4f.mt";

Matrix4f identity    = Matrix4f::identity();              // static factory
Matrix4f translation = Matrix4f::translate(1.0, 2.0, 3.0); // static factory
Matrix4f combined    = identity.multiply(translation);    // instance method

Quaternion​

import * from "lib/math/Quaternion.mt";

Quaternion q = Quaternion::fromAxisAngle(new Vec3f(0.0, 1.0, 0.0), 1.5708);
Vec3f rotated = q.rotate(new Vec3f(1.0, 0.0, 0.0));

Random​

import * from "lib/math/Random.mt";

Random r = new Random(12345);  // seed
print(r.nextInt(100));         // 0..99
print(r.nextFloat());          // 0.0..1.0
print(r.nextBool());

See Also​