Start Skybox;

src/graphics/skybox.c

@@ -0,0 +1,26 @@
+#include "skybox.h"
+#include <stdlib.h>
+
+Skybox* lovrSkyboxCreate(char** filenames) {
+  Skybox* skybox = malloc(sizeof(Skybox));
+
+  glGenTextures(1, &skybox->texture);
+  glBindTexture(GL_TEXTURE_CUBE_MAP, skybox->texture);
+
+  for (int i = 0; i < 6; i++) {
+    int width, height, channels;
+    unsigned char* data = stbi_load(filenames[i], &width, &height, &channels, 3);
+    glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
+  }
+
+  return skybox;
+}
+
+void lovrSkyboxDestroy(Skybox* skybox) {
+  glDeleteTextures(1, skybox->texture);
+  free(skybox);
+}
+
+void lovrSkyboxDraw(Skybox* skybox) {
+  //
+}

src/graphics/skybox.h

@@ -0,0 +1,12 @@
+#include "../glfw.h"
+
+#ifndef LOVR_SKYBOX_TYPES
+#define LOVR_SKYBOX_TYPES
+typedef struct {
+  GLuint texture;
+} Skybox;
+#endif
+
+Skybox* lovrSkyboxCreate();
+void lovrSkyboxDestroy(Skybox* skybox);
+void lovrSkyboxDraw(Skybox* skybox);

src/lovr/graphics.c

@@ -2,6 +2,7 @@
 #include "buffer.h"
 #include "model.h"
 #include "shader.h"
+#include "skybox.h"
 #include "../graphics/graphics.h"
 #include "../util.h"
 
@@ -41,6 +42,7 @@ const luaL_Reg lovrGraphics[] = {
   { "newModel", l_lovrGraphicsNewModel },
   { "newBuffer", l_lovrGraphicsNewBuffer },
   { "newShader", l_lovrGraphicsNewShader },
+  { "newSkybox", l_lovrGraphicsNewSkybox },
   { NULL, NULL }
 };
 
@@ -50,6 +52,7 @@ int l_lovrGraphicsInit(lua_State* L) {
   luaRegisterType(L, "Buffer", lovrBuffer, luax_destroybuffer);
   luaRegisterType(L, "Model", lovrModel, luax_destroymodel);
   luaRegisterType(L, "Shader", lovrShader, luax_destroyshader);
+  luaRegisterType(L, "Skybox", lovrSkybox, luax_destroyskybox);
 
   map_init(&BufferAttributeTypes);
   map_set(&BufferAttributeTypes, "float", BUFFER_FLOAT);
@@ -512,3 +515,14 @@ int l_lovrGraphicsNewShader(lua_State* L) {
   luax_pushshader(L, lovrShaderCreate(vertexSource, fragmentSource));
   return 1;
 }
+
+int l_lovrGraphicsNewSkybox(lua_State* L) {
+  const char* filenames[6];
+
+  for (int i = 0; i < 6; i++) {
+    filenames[i] = luaL_checkstring(L, i + 1);
+  }
+
+  luax_pushskybox(L, lovrSkyboxCreate(filenames));
+  return 1;
+}

src/lovr/graphics.h

@@ -46,3 +46,4 @@ int l_lovrGraphicsGetDimensions(lua_State* L);
 int l_lovrGraphicsNewBuffer(lua_State* L);
 int l_lovrGraphicsNewModel(lua_State* L);
 int l_lovrGraphicsNewShader(lua_State* L);
+int l_lovrGraphicsNewSkybox(lua_State* L);

src/lovr/skybox.c

@@ -0,0 +1,33 @@
+#include "skybox.h"
+
+void luax_pushskybox(lua_State* L, Skybox* skybox) {
+  if (skybox == NULL) {
+    return lua_pushnil(L);
+  }
+
+  Skybox** userdata = (Skybox**) lua_newuserdata(L, sizeof(Skybox*));
+  luaL_getmetatable(L, "Skybox");
+  lua_setmetatable(L, -2);
+  *userdata = skybox;
+}
+
+Skybox* luax_checkskybox(lua_State* L, int index) {
+  return *(Skybox**) luaL_checkudata(L, index, "Skybox");
+}
+
+int luax_destroyskybox(lua_State* L) {
+  Skybox* skybox = luax_checkskybox(L, 1);
+  lovrSkyboxDestroy(skybox);
+  return 0;
+}
+
+const luaL_Reg lovrSkybox[] = {
+  { "draw", l_lovrSkyboxDraw },
+  { NULL, NULL }
+};
+
+int l_lovrSkyboxDraw(lua_State* L) {
+  Skybox* skybox = luax_checkskybox(L, 1);
+  lovrSkyboxDraw(skybox);
+  return 0;
+}

src/lovr/skybox.h

@@ -0,0 +1,11 @@
+#include <lua.h>
+#include <lauxlib.h>
+#include <lualib.h>
+#include "../graphics/skybox.h"
+
+void luax_pushskybox(lua_State* L, Skybox* skybox);
+Skybox* luax_checkskybox(lua_State* L, int index);
+int luax_destroyskybox(lua_State* L);
+extern const luaL_Reg lovrSkybox[];
+
+int l_lovrSkyboxDraw(lua_State* L);