update examples with difficulty stars (#4694)

* update examples with difficulty stars

* manual fix script issues

* manual fix script issues

examples/models/models_animation.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Load 3d model with animations and play them
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 3.5
 *
 *   Example contributed by Culacant (@culacant) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_billboard.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Drawing billboards
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 1.3, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_box_collisions.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Detect basic 3d collisions (box vs sphere vs box)
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.3, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_cubicmap.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Cubicmap loading and drawing
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.8, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_draw_cube_texture.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Draw textured cube
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 4.5, last time updated with raylib 4.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_first_person_maze.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - first person maze
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_geometric_shapes.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Draw some basic geometric shapes (cube, sphere, cylinder...)
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.0, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_heightmap.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Heightmap loading and drawing
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.8, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_loading.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Models loading
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   NOTE: raylib supports multiple models file formats:
 *
 *     - OBJ  > Text file format. Must include vertex position-texcoords-normals information,

examples/models/models_loading_gltf.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - loading gltf with animations
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   LIMITATIONS:
 *     - Only supports 1 armature per file, and skips loading it if there are multiple armatures
 *     - Only supports linear interpolation (default method in Blender when checked

examples/models/models_loading_m3d.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Load models M3D
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 4.5, last time updated with raylib 4.5
 *
 *   Example contributed by bzt (@bztsrc) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_loading_vox.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Load models vox (MagicaVoxel)
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 4.0, last time updated with raylib 4.0
 *
 *   Example contributed by Johann Nadalutti (@procfxgen) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_mesh_generation.c

@@ -1,6 +1,8 @@
 /*******************************************************************************************
 *
-*   raylib example - procedural mesh generation
+*   raylib [models] example - procedural mesh generation
+*
+*   Example complexity rating: [★★☆☆] 2/4
 *
 *   Example originally created with raylib 1.8, last time updated with raylib 4.0
 *

examples/models/models_mesh_picking.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Mesh picking in 3d mode, ground plane, triangle, mesh
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 1.7, last time updated with raylib 4.0
 *
 *   Example contributed by Joel Davis (@joeld42) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_orthographic_projection.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Show the difference between perspective and orthographic projection
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 2.0, last time updated with raylib 3.7
 *
 *   Example contributed by Max Danielsson (@autious) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_rlgl_solar_system.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - rlgl module usage with push/pop matrix transformations
 *
+*   Example complexity rating: [★★★★] 4/4
+*
 *   NOTE: This example uses [rlgl] module functionality (pseudo-OpenGL 1.1 style coding)
 *
 *   Example originally created with raylib 2.5, last time updated with raylib 4.0

examples/models/models_skybox.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Skybox loading and drawing
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.8, last time updated with raylib 4.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/models/models_waving_cubes.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Waving cubes
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 3.7
 *
 *   Example contributed by Codecat (@codecat) and reviewed by Ramon Santamaria (@raysan5)

examples/models/models_yaw_pitch_roll.c

@@ -2,6 +2,8 @@
 *
 *   raylib [models] example - Plane rotations (yaw, pitch, roll)
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.8, last time updated with raylib 4.0
 *
 *   Example contributed by Berni (@Berni8k) and reviewed by Ramon Santamaria (@raysan5)