void Camera::LookAt(glm::vec3 const & eye, glm::vec3 const & center)
{
m_scale = glm::vec3(1.0f);
m_position = eye;
glm::vec3 vdir = center-eye;
float rotY = (vdir.x == 0.0f && vdir.z == 0.0f) ? 0.0f : AngleBetween(glm::vec2(0.0f,-1.0f),glm::vec2(vdir.x, vdir.z)); vdir = glm::vec3(glm::rotateY(glm::vec4(vdir,1.0f),-rotY));
float rotX = (vdir.x == 0.0f && vdir.y == 0.0f) ? 0.0f : AngleBetween(glm::vec2(0.0f, 1.0f),glm::vec2(vdir.y, vdir.z));
float rotZ = 0.0f;
m_rotation = -glm::vec3(rotX,rotY,rotZ);
UpdateModelMatrix();
if (GetUpDir().y < 0) m_rotation += glm::vec3(180.0f,0,0);
}
void Hero::initialize()
{
objectType = CollidableModel::ObjectType::MD2Model;
CMD2Model::LoadModel("data/models/SONIC/PLAY.md2");
animationState = this->StartAnimation(animType_t::STAND);
CMD2Model::SetBoundingBox(CollidableModel::CalculateBoundingBox(CMD2Model::GetVertices()));
minitialTransformation = glm::rotate(-90.0f, 1.0f, 0.0f, 0.0f) * glm::scale(0.01f, 0.01f, 0.01f);
auto tempBoundingBox = CMD2Model::GetBoundingBox();
tempBoundingBox.Scale(0.01f, 0.01f, 0.01f);
tempBoundingBox.Rotate(-90.0f, 1.0f, 0.0f, 0.0f);
CMD2Model::SetBoundingBox(tempBoundingBox);
UpdateModelMatrix();
initialCamera = glm::vec3(0.0f,1.0f,2.0f);
camera = std::unique_ptr<ThirdPersonCamera>(new ThirdPersonCamera());
auto position = GameObject::getPosition();
camera->Reset(position+initialCamera,position,glm::vec3(0.0f,1.0f,0.0f));
camera->SetPerspectiveProjection(45.0f, 4.0f / 3.0f, 0.1f, 200.0f);
}
int main() {
// Initialize GLFW
if (!glfwInit()) {
std::cerr << "Failed to initialize GLFW!" << std::endl;
return EXIT_FAILURE;
}
// Setup OpenGL context
glfwWindowHint(GLFW_SAMPLES, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// Try to create a window
auto window = glfwCreateWindow( SIZE, SIZE, "OpenGL", NULL, NULL);
if (window == NULL) {
std::cerr << "Failed to open GLFW window, your graphics card is probably only capable of OpenGL 2.1" << std::endl;
glfwTerminate();
return EXIT_FAILURE;
}
// Finalize window setup
glfwMakeContextCurrent(window);
// Initialize GLEW
glewExperimental = GL_TRUE;
glewInit();
if (!glewIsSupported("GL_VERSION_3_3")) {
std::cerr << "Failed to initialize GLEW with OpenGL 3.3!" << std::endl;
glfwTerminate();
return EXIT_FAILURE;
}
// Load shaders
auto program_id = ShaderProgram("gl_projection.vert", "gl_projection.frag");
glUseProgram(program_id);
InitializeGeometry(program_id);
// Load and bind texture
auto texture_id = LoadImage("lena.rgb", SIZE, SIZE);
auto texture_attrib = glGetUniformLocation(program_id, "Texture");
glUniform1i(texture_attrib, 0);
glActiveTexture(GL_TEXTURE0 + 0);
glBindTexture(GL_TEXTURE_2D, texture_id);
InitializeProjection(program_id);
// Time counter
float time = 0;
// Main execution loop
while (!glfwWindowShouldClose(window)) {
// Update model matrix (model rotation)
UpdateModelMatrix(program_id, time++);
// Set gray background
glClearColor(.5f,.5f,.5f,0);
// Clear depth and color buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Draw triangles using the program
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDrawArrays(GL_TRIANGLE_STRIP, 4, 4);
// Display result
glfwSwapBuffers(window);
glfwPollEvents();
}
// Clean up
glfwTerminate();
return EXIT_SUCCESS;
}
