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v/glm/glm_test.v

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// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
import os
import gl
import gg
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fn cmp(a, b f32) bool {
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return int(a * 1000) == int(b * 1000)
}
fn test_ortho() {
projection := glm.ortho(0, 200, 400, 0)
println(projection.data[0])
assert cmp(projection.data[0], 0.01)
assert cmp(projection.data[1], 0.000000)
assert cmp(projection.data[2], 0.000000)
assert cmp(projection.data[3], 0.000000)
assert cmp(projection.data[4], 0.000000)
assert cmp(projection.data[5], - 0.005000)
assert cmp(projection.data[6], 0.000000)
assert cmp(projection.data[7], 0.000000)
assert cmp(projection.data[8], 0.000000)
assert cmp(projection.data[9], 0.000000)
assert cmp(projection.data[10], 1.000000)
assert cmp(projection.data[11], 0.000000)
assert cmp(projection.data[12], - 1.000000)
assert cmp(projection.data[13], 1.000000)
assert cmp(projection.data[14], 0.000000)
assert cmp(projection.data[15], 1.000000)
// f := gg.ortho(1,2,3,4)
}
fn test_rotate() {
println('rotate')
mut m := glm.identity()
m = glm.scale(m, glm.vec3(2, 2, 2))
println(m)
m = glm.rotate_z(m, 1)
println(m)
}
fn test_translate() {
mut m := glm.identity()
m = glm.translate(m, glm.vec3(0, 0, - 0.5))
println(m)
// TODO
// mat4x4((1.000000, 0.000000, 0.000000, 0.000000),
// (0.000000, 1.000000, 0.000000, 0.000000),
// (0.000000, 0.000000, 1.000000, 0.000000),
// (0.000000, 0.000000, -0.500000, 1.000000))
}