From 140666204191b218b72274d8d14921c89a6631fd Mon Sep 17 00:00:00 2001
From: sanine-a <sanine.not@pm.me>
Date: Sun, 29 Nov 2020 15:16:42 -0600
Subject: refactor: eliminate src subdirectories for honey files

---
 src/mesh/mesh.c | 232 --------------------------------------------------------
 1 file changed, 232 deletions(-)
 delete mode 100644 src/mesh/mesh.c

(limited to 'src/mesh/mesh.c')

diff --git a/src/mesh/mesh.c b/src/mesh/mesh.c
deleted file mode 100644
index 68e39d7..0000000
--- a/src/mesh/mesh.c
+++ /dev/null
@@ -1,232 +0,0 @@
-#include "mesh.h"
-
-static int honey_mesh_lua_draw(lua_State* L)
-{
-    honey_mesh* mesh;
-    int shader;
-    honey_lua_parse_arguments(L, 2,
-                              HONEY_USERDATA, &mesh,
-                              HONEY_INTEGER, &shader);
-    honey_mesh_draw(*mesh, shader);
-    return 0;
-}
-
-static int honey_mesh_lua_delete(lua_State* L)
-{
-    honey_mesh* mesh;
-    honey_lua_parse_arguments(L, 1, HONEY_USERDATA, &mesh);
-    honey_mesh_delete(*mesh);
-    return 0;
-}
-
-void honey_setup_mesh(lua_State* L)
-{
-    honey_lua_element mesh_elements[] = {
-        { "load", HONEY_FUNCTION, { .function = honey_mesh_load } },
-        { "draw", HONEY_FUNCTION, { .function = honey_mesh_lua_draw } },
-        { "delete", HONEY_FUNCTION, { .function = honey_mesh_lua_delete } },
-    };
-
-    honey_lua_create_table(L, mesh_elements, 2);
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-static honey_mesh assimp_to_honey_mesh(struct aiMesh* mesh,
-                                       struct aiScene* scene)
-{
-  unsigned int vertex_step = 6;
-  bool mesh_has_uvs = false;
-  unsigned int n_vertices = mesh->mNumVertices;
-  
-  if (mesh->mTextureCoords[0]) {
-    mesh_has_uvs = true;
-    vertex_step = 8;
-  }
-
-  float* vertices = malloc(sizeof(float) * vertex_step * n_vertices);
-  for (int i=0; i<n_vertices; i++) {
-    int j = i*vertex_step;
-    /* positions */
-    vertices[j+0] = mesh->mVertices[i].x;
-    vertices[j+1] = mesh->mVertices[i].y;
-    vertices[j+2] = mesh->mVertices[i].z;
-
-    /* normals */
-    vertices[j+3] = mesh->mNormals[i].x;
-    vertices[j+4] = mesh->mNormals[i].y;
-    vertices[j+5] = mesh->mNormals[i].z;
-
-    /* uvs? */
-    if (mesh_has_uvs) {
-      vertices[j+6] = mesh->mTextureCoords[0][i].x;
-      vertices[j+7] = mesh->mTextureCoords[0][i].y;
-    }
-  }
-
-  unsigned int n_indices = mesh->mNumFaces*3;
-  unsigned int* indices = malloc(sizeof(unsigned int) * n_indices);
-  for (int i=0; i<mesh->mNumFaces; i++) {
-    int j = 3*i;
-    struct aiFace face = mesh->mFaces[i];
-    indices[j+0] = face.mIndices[0];
-    indices[j+1] = face.mIndices[1];
-    indices[j+2] = face.mIndices[2];
-  }
-
-  honey_mesh result;
-
-  if (mesh_has_uvs) {
-    unsigned int n_attributes = 3;
-    unsigned int attribute_sizes[] = { 3, 3, 2 };
-    honey_mesh_new(&result,
-                   vertices, n_vertices,
-                   n_attributes, attribute_sizes,
-                   indices, n_indices);
-  }
-  else {
-    unsigned int n_attributes = 2;
-    unsigned int attribute_sizes[] = { 3, 3 };
-    honey_mesh_new(&result,
-                   vertices, n_vertices,
-                   n_attributes, attribute_sizes,
-                   indices, n_indices);
-  }
-
-  free(vertices);
-  free(indices);
-
-  return result;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-static void process_nodes_recursively(lua_State* L,
-                                      struct aiScene* scene,
-                                      struct aiNode* node,
-                                      int* n_meshes)
-{
-    for (int i=0; i<node->mNumMeshes; i++) {
-        honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
-        struct aiMesh* assimp_mesh = scene->mMeshes[node->mMeshes[i]];
-        *mesh = assimp_to_honey_mesh(assimp_mesh, scene);
-        lua_rawseti(L, -2, *n_meshes);
-        (*n_meshes)++;
-    }
-
-    for (int i=0; i<node->mNumChildren; i++) {
-        process_nodes_recursively(L, scene, node->mChildren[i], n_meshes);
-    }
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-int honey_mesh_load(lua_State* L)
-{
-    char* filename;
-    honey_lua_parse_arguments(L, 1, HONEY_STRING, &filename);
-
-    int n_meshes = 1;
-
-    struct aiScene* scene = aiImportFile(filename,
-                                         aiProcess_Triangulate |
-                                         aiProcess_FlipUVs);
-    if (scene == NULL) {
-        char* error;
-        honey_format_string(&error, "could not open file '%s'", filename);
-        lua_pushstring(L, error);
-        free(error);
-        lua_error(L);
-    }
-
-    if (scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE ||
-        scene->mRootNode == NULL) {
-        char* error;
-        honey_format_string(&error, "could not read mesh(es) in '%s'", filename);
-        lua_pushstring(L, error);
-        free(error);
-        lua_error(L);
-    }
-
-    lua_createtable(L, 0, 0);
-
-    process_nodes_recursively(L, scene, scene->mRootNode, &n_meshes);
-
-    return 1;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-honey_result honey_mesh_new(honey_mesh* mesh,
-                            float* vertices,
-                            unsigned int n_vertices,
-                            unsigned int n_attributes,
-                            unsigned int* attribute_sizes,
-                            unsigned int* indices,
-                            unsigned int n_indices) {
-    if (vertices == NULL || n_vertices == 0) {
-        return HONEY_MESH_BAD_VERTEX_DATA;
-    }
-    if (indices == NULL || n_indices == 0) {
-        return HONEY_MESH_BAD_INDEX_DATA;
-    }
-
-    unsigned int vertex_size = 0;
-    for (int i=0; i<n_attributes; i++) {
-        vertex_size += attribute_sizes[i];
-    }
-
-    (*mesh).n_vertices = n_vertices;
-    (*mesh).n_indices  = n_indices;
-
-    glGenVertexArrays(1, &((*mesh).vertex_array));
-    glGenBuffers(1, &((*mesh).vertex_buffer));
-    glGenBuffers(1, &((*mesh).element_buffer));
-
-    glBindVertexArray((*mesh).vertex_array);
-
-    glBindBuffer(GL_ARRAY_BUFFER, (*mesh).vertex_buffer);
-    glBufferData(GL_ARRAY_BUFFER,
-                 vertex_size * n_vertices * sizeof(float),
-                 vertices, GL_STATIC_DRAW);
-
-    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, (*mesh).element_buffer);
-    glBufferData(GL_ELEMENT_ARRAY_BUFFER,
-                 n_indices * sizeof(unsigned int),
-                 indices, GL_STATIC_DRAW);
-
-    /* set up vertex attributes */
-    unsigned int offset = 0;
-    for (int i=0; i<n_attributes; i++) {
-        glEnableVertexAttribArray(i);
-        glVertexAttribPointer(i,
-                              attribute_sizes[i],
-                              GL_FLOAT,
-                              GL_FALSE,
-                              vertex_size*sizeof(float),
-                              (void*) (offset*sizeof(float)));
-        offset += attribute_sizes[i];
-    }
-  
-    glBindVertexArray(0);
-
-    return HONEY_OK;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-void honey_mesh_draw(honey_mesh mesh, int shader) {
-    glUseProgram(shader);
-  
-    glBindVertexArray(mesh.vertex_array);
-    glDrawElements(GL_TRIANGLES, mesh.n_indices, GL_UNSIGNED_INT, 0);
-    glBindVertexArray(0);
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-void honey_mesh_delete(honey_mesh mesh) {
-    glDeleteVertexArrays(1, &(mesh.vertex_array));
-    glDeleteBuffers(1, &(mesh.vertex_buffer));
-    glDeleteBuffers(1, &(mesh.element_buffer));
-}
-- 
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