From c21baf0d92c9a3ad44d46b698fb87d739dd64dc6 Mon Sep 17 00:00:00 2001
From: raysan5 <raysan5@gmail.com>
Date: Fri, 2 Apr 2021 15:56:35 +0200
Subject: [PATCH] ADDED: GenMeshDefault() #1556

---
 src/models.c | 23 +++++++++++++++++++++--
 src/raylib.h | 13 +------------
 src/rlgl.h   |  3 +--
 3 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/src/models.c b/src/models.c
index ec7e5f869..3d667944c 100644
--- a/src/models.c
+++ b/src/models.c
@@ -1501,6 +1501,25 @@ bool IsModelAnimationValid(Model model, ModelAnimation anim)
 }
 
 #if defined(SUPPORT_MESH_GENERATION)
+Mesh GenMeshDefault(int vertexCount)
+{
+    Mesh mesh = { 0 };
+
+    mesh.vertexCount = vertexCount;
+    mesh.triangleCount = vertexCount/3;
+
+    mesh.vertices = (float *)RL_CALLOC(mesh.vertexCount*3, sizeof(float));
+    mesh.texcoords = (float *)RL_CALLOC(mesh.vertexCount*2, sizeof(float));
+    mesh.normals = (float *)RL_CALLOC(mesh.vertexCount*3, sizeof(float));
+    mesh.colors = (unsigned char *)RL_CALLOC(mesh.vertexCount*4, sizeof(unsigned char));
+
+    // Upload vertex data to GPU (static mesh)
+    // NOTE: mesh.vboId array is allocated inside UploadMesh()
+    UploadMesh(&mesh, false);
+    
+    return mesh;
+}
+
 // Generate polygonal mesh
 Mesh GenMeshPoly(int sides, float radius)
 {
@@ -1869,7 +1888,7 @@ par_shapes_mesh* par_shapes_create_icosahedron();       // 20 sides polyhedron
 }
 
 // Generate sphere mesh (standard sphere)
-RLAPI Mesh GenMeshSphere(float radius, int rings, int slices)
+Mesh GenMeshSphere(float radius, int rings, int slices)
 {
     Mesh mesh = { 0 };
 
@@ -1911,7 +1930,7 @@ RLAPI Mesh GenMeshSphere(float radius, int rings, int slices)
 }
 
 // Generate hemi-sphere mesh (half sphere, no bottom cap)
-RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices)
+Mesh GenMeshHemiSphere(float radius, int rings, int slices)
 {
     Mesh mesh = { 0 };
 
diff --git a/src/raylib.h b/src/raylib.h
index c6adb2ec8..3ad0bd82f 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -701,17 +701,6 @@ typedef enum {
     GAMEPAD_AXIS_RIGHT_TRIGGER = 5      // [1..-1] (pressure-level)
 } GamepadAxis;
 
-// Mesh vertex attributes
-typedef enum {
-    MESH_VERTEX_POSITION    = 1,
-    MESH_VERTEX_TEXCOORD1   = 2,
-    MESH_VERTEX_TEXCOORD2   = 4,
-    MESH_VERTEX_NORMAL      = 8,
-    MESH_VERTEX_TANGENT     = 16,
-    MESH_VERTEX_COLOR       = 32,
-    MESH_VERTEX_INDEX       = 64
-} MeshVertexAttributes;
-
 // Material map index
 typedef enum {
     MATERIAL_MAP_ALBEDO    = 0,       // MATERIAL_MAP_DIFFUSE
@@ -1398,7 +1387,7 @@ RLAPI void UnloadModelAnimations(ModelAnimation* animations, unsigned int count)
 RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim);                         // Check model animation skeleton match
 
 // Mesh generation functions
-RLAPI Mesh GenMeshCustom(int vertexCount, int flags);                                       // Generate custom empty mesh (data initialized to 0)
+RLAPI Mesh GenMeshDefault(int vertexCount);                                                 // Generate an empty mesh with vertex: position, texcoords, normals, colors
 RLAPI Mesh GenMeshPoly(int sides, float radius);                                            // Generate polygonal mesh
 RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ);                     // Generate plane mesh (with subdivisions)
 RLAPI Mesh GenMeshCube(float width, float height, float length);                            // Generate cuboid mesh
diff --git a/src/rlgl.h b/src/rlgl.h
index f6de9ec2e..571ebeb96 100644
--- a/src/rlgl.h
+++ b/src/rlgl.h
@@ -92,7 +92,7 @@
         #define RL_FREE(p)          free(p)
     #endif
 #else
-    #include "raylib.h"         // Required for: Model, Mesh, Material, Shader, Texture2D
+    #include "raylib.h"         // Required for: Shader, Texture2D
 #endif
 
 #include "raymath.h"            // Required for: Vector3, Matrix
@@ -2772,7 +2772,6 @@ void rlUnloadTexture(unsigned int id)
     glDeleteTextures(1, &id);
 }
 
-
 // Generate mipmap data for selected texture
 void rlGenerateMipmaps(Texture2D *texture)
 {