static void init_equipment_texture()
{
GLuint min_filter = GL_LINEAR;
GLuint mag_filter = GL_NEAREST;
int ret = create_texture_from_file(MEDIA_PATH "sprites/container/equipment48.png", &EquipmentTexture, min_filter, mag_filter);
GS_ASSERT(ret == 0);
GS_ASSERT(EquipmentTexture != 0);
}
static void init_crusher_texture()
{
GLuint min_filter = GL_LINEAR;
GLuint mag_filter = GL_NEAREST;
int ret = create_texture_from_file(MEDIA_PATH "sprites/container/crusher48.png", &CrusherTexture, min_filter, mag_filter);
GS_ASSERT(ret == 0);
GS_ASSERT(CrusherTexture != 0);
}
static void init_storage_block_texture()
{
GLuint min_filter = GL_LINEAR;
GLuint mag_filter = GL_NEAREST;
int ret = create_texture_from_file(MEDIA_PATH "sprites/container/storage_block48.png", &StorageBlockTexture, min_filter, mag_filter);
GS_ASSERT(ret == 0);
GS_ASSERT(StorageBlockTexture != 0);
}
// create a new cursor
void Cursor::build(const std::string & tex_file_name)
{
// vertex coordinates
std::vector<glm::vec3> coords =
{
glm::vec3(0.0f, 0.0f, sqrtf(2) / 2.0f),
glm::vec3(-0.5f, -0.5f, 0.0f),
glm::vec3(0.5f, -0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, sqrtf(2) / 2.0f),
glm::vec3(-0.5f, 0.5f, 0.0f),
glm::vec3(-0.5f, -0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, sqrtf(2) / 2.0f),
glm::vec3(0.5f, 0.5f, 0.0f),
glm::vec3(-0.5f, 0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, sqrtf(2) / 2.0f),
glm::vec3(0.5f, -0.5f, 0.0f),
glm::vec3(0.5f, 0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, -sqrtf(2) / 2.0f),
glm::vec3(0.5f, -0.5f, 0.0f),
glm::vec3(-0.5f, -0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, -sqrtf(2) / 2.0f),
glm::vec3(-0.5f, -0.5f, 0.0f),
glm::vec3(-0.5f, 0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, -sqrtf(2) / 2.0f),
glm::vec3(-0.5f, 0.5f, 0.0f),
glm::vec3(0.5f, 0.5f, 0.0f),
glm::vec3(0.0f, 0.0f, -sqrtf(2) / 2.0f),
glm::vec3(0.5f, 0.5f, 0.0f),
glm::vec3(0.5f, -0.5f, 0.0f)
};
std::vector<glm::vec2> tex_coords;
std::vector<glm::vec3> normals;
// assign texture coords and normals
for(size_t i = 0; i < coords.size(); i += 3)
{
tex_coords.push_back(glm::vec2(0.5f, 1.0f - sqrtf(3.0f) / 2.0f));
tex_coords.push_back(glm::vec2(0.0f, 1.0f));
tex_coords.push_back(glm::vec2(1.0f, 1.0f));
glm::vec3 norm = glm::normalize(glm::cross(coords[i + 1] - coords[i], coords[i + 2] - coords[i]));
for(int j = 0; j < 3; ++j)
normals.push_back(norm);
}
// create OpenGL vertex objects
glGenVertexArrays(1, &_vao);
glBindVertexArray(_vao);
glGenBuffers(1, &_vbo);
glBindBuffer(GL_ARRAY_BUFFER, _vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(glm::vec3) * coords.size() + sizeof(glm::vec2) * tex_coords.size() +
sizeof(glm::vec3) * normals.size(), NULL, GL_STATIC_DRAW);
// store vertex data
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(glm::vec3) * coords.size(), coords.data());
glBufferSubData(GL_ARRAY_BUFFER, sizeof(glm::vec3) * coords.size(), sizeof(glm::vec2) * tex_coords.size(), tex_coords.data());
glBufferSubData(GL_ARRAY_BUFFER, sizeof(glm::vec3) * coords.size() + sizeof(glm::vec2) * tex_coords.size(),
sizeof(glm::vec3) * normals.size(), normals.data());
// set pointers to coordinates, texture coords, normals
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (const GLvoid *)(sizeof(glm::vec3) * coords.size()));
glEnableVertexAttribArray(1);
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 0, (const GLvoid *)(sizeof(glm::vec3) * coords.size() + sizeof(glm::vec2) * tex_coords.size()));
glEnableVertexAttribArray(2);
_num_indexes = coords.size();
_tex = create_texture_from_file(tex_file_name);
glBindVertexArray(0);
}
void draw_init()
{
create_texture_from_file(MEDIA_PATH "sprites/animation/particles_01.png", &particle_texture);
GS_ASSERT(particle_texture != 0);
}
