# HG changeset patch
# User sam <sam@basx.dev>
# Date 1712942565 -25200
# Node ID fe48fb1bdfda2e893f7fe5bd6290efb8d4bd8bf4
# Parent  d91a810db920d8423c09607539eb886e7291ec5e
fix: ortho projection matrix (hopefully), better string output for matrix and vector

diff -r d91a810db920 -r fe48fb1bdfda semicongine/core/matrix.nim
--- a/semicongine/core/matrix.nim	Fri Apr 12 19:44:27 2024 +0700
+++ b/semicongine/core/matrix.nim	Sat Apr 13 00:22:45 2024 +0700
@@ -118,7 +118,7 @@
     maxwidth = 0
 
   for n in value.data:
-    let strval = &"{n:.2}"
+    let strval = &"{n:.4f}"
     strvalues.add(strval)
     if strval.len > maxwidth:
       maxwidth = strval.len
@@ -131,7 +131,6 @@
       if i mod T.columnCount == 0:
         result &= "  "
       result &= filler & strvalues[i] & "  "
-  result = $T & "\n" & result
 
 func `$`*(v: TMat2[SomeNumber]): string = toString[TMat2[SomeNumber]](v)
 func `$`*(v: TMat23[SomeNumber]): string = toString[TMat23[SomeNumber]](v)
@@ -456,8 +455,8 @@
   Mat4(data: [
     2 / (right - left), 0, 0, -(right + left) / (right - left),
     0, 2 / (bottom - top), 0, -(bottom + top) / (bottom - top),
-    0, 0, 1 / (zFar - zNear), -zNear / (zFar - zNear),
-    0, 0, 1, 1,
+    0, 0, 1 / (zFar - zNear), zNear / (zFar - zNear),
+    0, 0, 0, 1,
   ])
 
 # create an orthographic perspective that will map from -1 .. 1 on all axis and keep a 1:1 aspect ratio
diff -r d91a810db920 -r fe48fb1bdfda semicongine/core/vector.nim
--- a/semicongine/core/vector.nim	Fri Apr 12 19:44:27 2024 +0700
+++ b/semicongine/core/vector.nim	Sat Apr 13 00:22:45 2024 +0700
@@ -1,6 +1,7 @@
 import std/random
 import std/math
 import std/strutils
+import std/strformat
 import std/macros
 import std/typetraits
 import std/tables
@@ -101,8 +102,8 @@
 func toString[T](value: T): string =
   var items: seq[string]
   for item in value:
-    items.add($item)
-  $T & "(" & join(items, "  ") & ")"
+    items.add(&"{item:.5f}")
+  & "(" & join(items, "  ") & ")"
 
 func `$`*(v: TVec2[SomeNumber]): string = toString[TVec2[SomeNumber]](v)
 func `$`*(v: TVec3[SomeNumber]): string = toString[TVec3[SomeNumber]](v)