basic txt entry

sk_demo/src/Mono.cs

@@ -215,6 +215,8 @@ public class Mono {
   Vec3 index_pos = Vec3.Zero;
   int  index_i = 0;
 
+  string txt = "hello ";
+
   public void Init() {
     rig.Init();
 
@@ -223,6 +225,8 @@ public class Mono {
 
     mat_room.SetTexture("diffuse", Tex.FromFile("bake.png"));
     mesh_room = model_room.Nodes.First(n => n.Name == "Room").Mesh;
+
+    keyboard_btn.held = true;
   }
 
   public void Run() {
@@ -264,8 +268,12 @@ public class Mono {
       Log.Info($"index_i: {index_i}");
       monoNet.value = index_i;
       monoNet.send = true;
+      txt += KeyToChar(index_i);
     }
 
+
+    // RENDER RENDER RENDER
+
     // keyboard
     Hierarchy.Push(keyboard_m4);
     // 3 rows of 10 keys
@@ -323,6 +331,19 @@ public class Mono {
       keyboard_btn.held ? Color.Hex(0x00000090) : Color.Hex(0x80808090)
     );
 
+    // text
+    // show over the keyboard
+    Text.Add(
+      txt,
+      Matrix.TS(
+        V.XYZ(0, -1, 0),
+        V.XYZ(-1, -1, 0) * 20.0f
+      ) * keyboard_m4,
+      TextAlign.CenterLeft,
+      TextAlign.CenterLeft,
+      0, 0, 0
+    );
+
     // WORLD
     mesh_room.Draw(
       mat_room,