--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/old_tests/test_matrix.nim	Mon Jul 15 20:06:42 2024 +0700
@@ -0,0 +1,158 @@
+import random
+import math
+
+import semicongine
+
+
+proc echoInfo(v: TVec) =
+  echo v
+  echo "  Length: ", v.length
+  echo "  Normlized: ", v.normalized
+  echo "  negated: ", -v
+
+proc echoAdd[T, U](v1: T, v2: U) =
+  echo v1, " + ", v2, " = ", v1 + v2
+proc echoSub[T, U](v1: T, v2: U) =
+  echo v1, " - ", v2, " = ", v1 - v2
+proc echoMul[T, U](v1: T, v2: U) =
+  echo v1, " * ", v2, " = ", v1 * v2
+proc echoDiv[T, U](v1: T, v2: U) =
+  echo v1, " / ", v2, " = ", v1 / v2
+proc echoDot[T, U](v1: T, v2: U) =
+  echo v1, " o ", v2, " = ", v1.dot(v2)
+proc echoCross[T, U](v1: T, v2: U) =
+  echo v1, " x ", v2, " = ", v1.cross(v2)
+
+proc randVec2I(): auto = NewVec2(rand(1 .. 10), rand(1 .. 10))
+proc randVec2F(): auto = NewVec2(rand(10'f) + 0.01, rand(10'f) + 0.01)
+proc randVec3I(): auto = NewVec3(rand(1 .. 10), rand(1 .. 10), rand(1 .. 10))
+proc randVec3F(): auto = NewVec3(rand(10'f) + 0.01, rand(10'f) + 0.01, rand(10'f) + 0.01)
+proc randVec4I(): auto = NewVec4(rand(1 .. 10), rand(1 .. 10), rand(1 .. 10), rand(1 .. 10))
+proc randVec4F(): auto = NewVec4(rand(10'f) + 0.01, rand(10'f) + 0.01, rand(10'f) + 0.01, rand(10'f) + 0.01)
+
+
+template withAllIntegerMats(stuff: untyped) =
+  stuff(TMat2[int32])
+  stuff(TMat23[int32])
+  stuff(TMat32[int32])
+  stuff(TMat3[int32])
+  stuff(TMat34[int32])
+  stuff(TMat43[int32])
+  stuff(TMat4[int32])
+  stuff(TMat2[int64])
+  stuff(TMat23[int64])
+  stuff(TMat32[int64])
+  stuff(TMat3[int64])
+  stuff(TMat34[int64])
+  stuff(TMat43[int64])
+  stuff(TMat4[int64])
+
+template withAllFloatMats(stuff: untyped) =
+  stuff(TMat2[float32])
+  stuff(TMat23[float32])
+  stuff(TMat32[float32])
+  stuff(TMat3[float32])
+  stuff(TMat34[float32])
+  stuff(TMat43[float32])
+  stuff(TMat4[float32])
+  stuff(TMat2[float64])
+  stuff(TMat23[float64])
+  stuff(TMat32[float64])
+  stuff(TMat3[float64])
+  stuff(TMat34[float64])
+  stuff(TMat43[float64])
+  stuff(TMat4[float64])
+
+template withAllMats(stuff: untyped) =
+  stuff(TMat2[int])
+  stuff(TMat23[int])
+  stuff(TMat32[int])
+  stuff(TMat3[int])
+  stuff(TMat34[int])
+  stuff(TMat43[int])
+  stuff(TMat4[int])
+  stuff(TMat2[float])
+  stuff(TMat23[float])
+  stuff(TMat32[float])
+  stuff(TMat3[float])
+  stuff(TMat34[float])
+  stuff(TMat43[float])
+  stuff(TMat4[float])
+
+template testTranspose(t: typedesc) =
+  echo "testTranspose: ", t
+  let m = t().Randomized()
+  assert m == m.Transposed().Transposed()
+
+template testInversed(t: typedesc) =
+  echo "testTranspose: ", t
+  let m = t().Randomized()
+  var unit = t()
+  for i in unit.RowCount:
+    unit[i][i] = 1
+  assert m.Transposed() * m == unit
+
+template testAssignI(t: typedesc) =
+  echo "testAssignI: ", t
+  var m = t()
+  for i in 0 ..< t.data.len:
+    m[rand(0 ..< t.RowCount), rand(0 ..< t.ColumnCount)] = rand(0'i32 .. 100'i32)
+
+template testAssignF(t: typedesc) =
+  echo "testAssignF: ", t
+  var m = t()
+  for i in 0 ..< t.data.len:
+    m[rand(0 ..< t.RowCount), rand(0 ..< t.ColumnCount)] = rand(100'f)
+
+template testRowCols(t: typedesc) =
+  echo "testRowCols: ", t
+  var m = t().Randomized()
+  for i in 0 ..< t.RowCount:
+    echo m.Row(i)
+  for i in 0 ..< t.ColumnCount:
+    echo m.Col(i)
+
+
+proc testMatrix() =
+  withAllMats(testTranspose)
+  withAllIntegerMats(testAssignI)
+  withAllFloatMats(testAssignF)
+  withAllMats(testRowCols)
+
+  echo Unit2
+  echo Unit2i
+  echo Unit2i8
+  echo Unit2i16
+  echo Unit2i32
+  echo Unit2i64
+
+  echo Unit3
+  echo Unit3i
+  echo Unit3i8
+  echo Unit3i16
+  echo Unit3i32
+  echo Unit3i64
+
+  echo Unit4
+  echo Unit4i
+  echo Unit4i8
+  echo Unit4i16
+  echo Unit4i32
+  echo Unit4i64
+
+  echo TMat2[float32]().Randomized() * One2.Randomized()
+  echo TMat3[float32]().Randomized() * One3.Randomized()
+  echo TMat4[float32]().Randomized() * One4.Randomized()
+
+  echo float32(rand(1'f32)) * TMat2[float32]().Randomized()
+  echo TMat2[float]().Randomized() * rand(1'f)
+  echo TMat2[float]().Randomized() * rand(1'f)
+  echo TMat23[float]().Randomized() * rand(1'f)
+  echo TMat23[float]().Randomized() * rand(1'f)
+  echo TMat3[float]().Randomized() * rand(1'f)
+  echo TMat34[float]().Randomized() * rand(1'f)
+  echo TMat43[float]().Randomized() * rand(1'f)
+  echo TMat4[float]().Randomized() * rand(1'f)
+
+randomize()
+testMatrix()