Added glib and math dependencies, incorporated custom vector3, vector2, matrix4x4 structs

src/core/matrix4x4.vala

@@ -1,18 +1,19 @@
 /**
  * A 4-by-4 matrix useful in OpenGL matrix operations.
  */
-public struct Ch3.Mat4x4 {
+public struct Worldbuilder.Matrix4x4
+{
     public float data[4*4];
 
     /**
      * Create a new matrix with a value along its diagonal.
      */
-    public Mat4x4 (float diagonal_value) {
+    public Matrix4x4 (float diagonal_value) {
         for (int i = 0; i < 4; i++)
             this[i, i] = diagonal_value;
     }
 
-    public Mat4x4.identity () {
+    public Matrix4x4.identity () {
         this (1.0f);
     }
 
@@ -24,7 +25,7 @@ public struct Ch3.Mat4x4 {
      * @param near              distance to near plane along the z axis
      * @param far               distance to far plane along the z axis
      */
-    public Mat4x4.perspective (float fov, float aspect_ratio, float near, float far) {
+    public Matrix4x4.perspective (float fov, float aspect_ratio, float near, float far) {
         // see http://www.songho.ca/opengl/gl_projectionmatrix.html
 
         float height_2 = Math.tanf (fov / 2) * near;
@@ -48,7 +49,7 @@ public struct Ch3.Mat4x4 {
      * @param target    what the camera is looking at
      * @param up        a direction that represents "up"
      */
-    public Mat4x4.look_at (Vec3 position, Vec3 target, Vec3 up) {
+    public Matrix4x4.look_at (Vector3 position, Vector3 target, Vector3 up) {
         // see https://learnopengl.com/Getting-started/Camera
 
         up = up.normalized ();
@@ -82,13 +83,13 @@ public struct Ch3.Mat4x4 {
         return data[col*4 + row];
     }
 
-    public Mat4x4 write (int row, int col, float value) {
+    public Matrix4x4 write (int row, int col, float value) {
         var copy = this;
         copy[row, col] = value;
         return copy;
     }
 
-    public Mat4x4 rotateX (float radians) {
+    public Matrix4x4 rotateX (float radians) {
         // see https://learnopengl.com/Getting-started/Transformations
         var copy = this;
         // rotate around x axis
@@ -103,7 +104,7 @@ public struct Ch3.Mat4x4 {
         return copy;
     }
 
-    public Mat4x4 rotateY (float radians) {
+    public Matrix4x4 rotateY (float radians) {
         var copy = this;
         // rotate around y axis
         float sin_y, cos_y;
@@ -117,7 +118,7 @@ public struct Ch3.Mat4x4 {
         return copy;
     }
 
-    public Mat4x4 rotateZ (float radians) {
+    public Matrix4x4 rotateZ (float radians) {
         var copy = this;
         // rotate around z axis
         float sin_z, cos_z;
@@ -131,7 +132,7 @@ public struct Ch3.Mat4x4 {
         return copy;
     }
 
-    public Mat4x4 scale (float x, float y, float z) {
+    public Matrix4x4 scale (float x, float y, float z) {
         var copy = this;
         copy[0, 0] *= x;
         copy[1, 1] *= y;
@@ -139,7 +140,7 @@ public struct Ch3.Mat4x4 {
         return copy;
     }
 
-    public Mat4x4 translate (float x, float y, float z) {
+    public Matrix4x4 translate (float x, float y, float z) {
         var copy = this;
         copy[0, 3] += x;
         copy[1, 3] += y;
@@ -147,8 +148,8 @@ public struct Ch3.Mat4x4 {
         return copy;
     }
 
-    public Mat4x4 multiply (Mat4x4 other) {
+    public Matrix4x4 multiply (Matrix4x4 other) {
-        var result = Mat4x4 (0);
+        var result = Matrix4x4 (0);
 
         // this x other = result
         for (int row = 0; row < 4; row++)
@@ -188,4 +189,3 @@ public struct Ch3.Mat4x4 {
         return sb.str;
     }
 }
-

src/core/texture2d.vala

@@ -0,0 +1,21 @@
+public class Worldbuilder.Texture2D : Object {
+    public string path { get; construct; }
+    public GL.uint id { get; private set; }
+
+    /**
+     * Loads a 2D texture from a resource and sets up a GL texture buffer.
+     *
+     * @param filename  basename
+     */
+    public Texture2D (string filename) throws Error {
+        Object (path: @"/com/brodybrooks/worldbuilder/textures/$filename");
+        var pixbuf = new Gdk.Pixbuf.from_resource (this.path);
+        debug ("loading %s ...", this.path);
+        id = GL.gen_texture ();
+        GL.bind_texture (GL.TEXTURE_2D, id);
+        GL.tex_image_2D (GL.TEXTURE_2D, 0, GL.RGB, pixbuf.width, pixbuf.height, 0, GL.RGB, GL.UNSIGNED_BYTE, pixbuf.get_pixels ());
+        GL.generate_mipmap (GL.TEXTURE_2D);
+        GL.bind_texture (GL.TEXTURE_2D, 0);
+    }
+}
+

src/core/vector2.vala

@@ -2,7 +2,7 @@ public struct Worldbuilder.Vector2 {
     public float x;
     public float y;
 
-    public Vec2 (float x = 0, float y = 0) {
+    public Vector2 (float x = 0, float y = 0) {
         this.x = x;
         this.y = y;
     }

src/meson.build

@@ -2,14 +2,21 @@ worldbuilder_sources = [
   'main.vala',
   'application.vala',
   'window.vala',
+  'scene_renderer.vala',
+
+  'core/vector3.vala',
+  'core/matrix4x4.vala',
+  'core/vector2.vala',
 ]
 
 worldbuilder_deps = [
   config_dep,
+  dependency('glib-2.0'),
   dependency('gtk4', version: '>= 4.2'),
   dependency('libadwaita-1', version: '>= 1.4'),
   cc.find_library('epoxy'),
   valac.find_library('gl', dirs: meson.source_root() / 'vapi'),
+  cc.find_library('m', required: false)   # optional on Windows
 ]
 
 worldbuilder_sources += gnome.compile_resources('worldbuilder-resources',
@@ -17,8 +24,10 @@ worldbuilder_sources += gnome.compile_resources('worldbuilder-resources',
   c_name: 'worldbuilder'
 )
 
-executable('worldbuilder', worldbuilder_sources,
+executable(
+  'worldbuilder',
+  worldbuilder_sources,
   dependencies: worldbuilder_deps,
   include_directories: config_inc,
-       install: true,
+  install: true,
 )

src/window.ui

@@ -7,8 +7,8 @@
     <style>
       <class name="devel"/>
     </style>
-    <property name="default-width">800</property>
+    <property name="default-width">1280</property>
-    <property name="default-height">600</property>
+    <property name="default-height">720</property>
     <property name="content">
       <object class="AdwToolbarView">