static void* create() {
struct cube_data *data = (struct cube_data*) malloc(sizeof(struct cube_data));
// shader creation and variable mapping
make_shaders();
data->shader = get_from_store(COLOR_SHADER);
// shader uniforms
data->uniforms = create_list();
list_add(data->uniforms, &data->mvp);
list_add(data->uniforms, &data->m);
// mesh and animation stuff
data->mesh = mesh_build_cube();
mesh_make_vbo(data->mesh);
data->q = (quat) { 0.0, 0.0, 0.0, 1.0 };
data->rot = quat_from_euler_angles(0.1, 0.5, 1.0);
return data;
}
int32_t main(int32_t argc, char *argv[]) {
printf("<<watchlist//>>\n");
if( init_sdl2() ) {
return 1;
}
int32_t width = 1280;
int32_t height = 720;
SDL_Window* window;
sdl2_window("cute3d: " __FILE__, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, &window);
SDL_GLContext* context;
sdl2_glcontext(3, 2, window, &context);
if( init_shader() ) {
return 1;
}
if( init_canvas(width, height) ) {
return 1;
}
canvas_create("global_dynamic_canvas", &global_dynamic_canvas);
struct Arcball arcball = {0};
arcball_create(width, height, (Vec4f){0.0,6.0,10.0,1.0}, (Vec4f){0.0,0.0,0.0,1.0}, 0.001f, 100.0, &arcball);
struct GameTime time = {0};
gametime_create(1.0f / 60.0f, &time);
Vec4f a = {0.0f, 0.0f, 1.0f};
Vec4f b = {1.0f, 0.0f, 1.0f};
draw_vec(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){25, 255, 25, 255}, 0.01f, a, (Vec3f){0.0f, 0.0f, 0.0f}, 1.0f, 1.0f);
draw_vec(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){255, 25, 25, 255}, 0.01f, b, (Vec3f){0.0f, 0.0f, 0.0f}, 1.0f, 1.0f);
Quat axis_angle_rot = {0};
quat_from_axis_angle((Vec4f)Y_AXIS, PI/4, axis_angle_rot);
draw_quaternion(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){255, 255, 255, 255}, (Color){255, 0, 255, 255}, 0.01f, axis_angle_rot, 2.0f);
vec_print("axis_angle_rot: ", axis_angle_rot);
Vec4f axis_angle_result = {0};
vec_rotate(a, axis_angle_rot, axis_angle_result);
draw_vec(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){255, 255, 25, 255}, 0.01f, axis_angle_result, (Vec3f){0.0f, 0.0f, 0.0f}, 1.0f, 2.0f);
Vec4f axis = {0};
float angle = 0.0f;
quat_to_axis_angle(axis_angle_rot, axis, &angle);
Quat axis_angle_rot2 = {0};
quat_from_axis_angle(axis, angle, axis_angle_rot2);
vec_print("axis_angle_rot2: ", axis_angle_rot2);
Quat euler_angles_rot = {0};
quat_from_euler_angles(0.0f, PI/4, 0.0f, euler_angles_rot);
vec_print("euler_angles_rot: ", euler_angles_rot);
Vec4f euler_angles_result = {0};
vec_rotate(a, euler_angles_rot, euler_angles_result);
draw_vec(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){25, 255, 255, 255}, 0.01f, euler_angles_result, (Vec3f){0.0f, 0.0f, 0.0f}, 1.0f, 3.0f);
Quat vec_pair_rot = {0};
quat_from_vec_pair(a, b, vec_pair_rot);
vec_print("vec_pair_rot: ", vec_pair_rot);
Vec4f vec_pair_result = {0};
vec_rotate(a, vec_pair_rot, vec_pair_result);
draw_vec(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){255, 25, 255, 255}, 0.01f, vec_pair_result, (Vec3f){0.0f, 0.0f, 0.0f}, 1.0f, 4.0f);
Mat xaxis_control = {0};
xaxis_control[0] = 1; xaxis_control[4] = 0; xaxis_control[8] = 0; xaxis_control[12] = 0;
xaxis_control[1] = 0; xaxis_control[5] = cosf(PI/4); xaxis_control[9] = -sinf(PI/4); xaxis_control[13] = 0;
xaxis_control[2] = 0; xaxis_control[6] = sinf(PI/4); xaxis_control[10] = cosf(PI/4); xaxis_control[14] = 0;
xaxis_control[3] = 0; xaxis_control[7] = 0; xaxis_control[11] = 0; xaxis_control[15] = 1;
mat_print("xaxis_control: ", xaxis_control);
Quat xaxis_rot = {0};
quat_from_axis_angle((Vec4f)X_AXIS, PI/4, xaxis_rot);
Mat xaxis_mat = {0};
quat_to_mat(xaxis_rot, xaxis_mat);
mat_print("xaxis_mat: ", xaxis_mat);
Mat yaxis_control = {0};
yaxis_control[0] = cosf(PI/4); yaxis_control[4] = 0; yaxis_control[8] = sinf(PI/4); yaxis_control[12] = 0;
yaxis_control[1] = 0; yaxis_control[5] = 1; yaxis_control[9] = 0; yaxis_control[13] = 0;
yaxis_control[2] = -sinf(PI/4); yaxis_control[6] = 0; yaxis_control[10] = cosf(PI/4); yaxis_control[14] = 0;
yaxis_control[3] = 0; yaxis_control[7] = 0; yaxis_control[11] = 0; yaxis_control[15] = 1;
mat_print("yaxis_control: ", yaxis_control);
Quat yaxis_rot = {0};
quat_from_axis_angle((Vec4f)Y_AXIS, PI/4, yaxis_rot);
Mat yaxis_mat = {0};
quat_to_mat(yaxis_rot, yaxis_mat);
mat_print("yaxis_mat: ", yaxis_mat);
Mat zaxis_control = {0};
zaxis_control[0] = cosf(PI/4); zaxis_control[4] = -sinf(PI/4); zaxis_control[8] = 0; zaxis_control[12] = 0;
zaxis_control[1] = sinf(PI/4); zaxis_control[5] = cosf(PI/4); zaxis_control[9] = 0; zaxis_control[13] = 0;
zaxis_control[2] = 0; zaxis_control[6] = 0; zaxis_control[10] = 1; zaxis_control[14] = 0;
zaxis_control[3] = 0; zaxis_control[7] = 0; zaxis_control[11] = 0; zaxis_control[15] = 1;
mat_print("zaxis_control: ", zaxis_control);
Quat zaxis_rot = {0};
quat_from_axis_angle((Vec4f)Z_AXIS, PI/4, zaxis_rot);
Mat zaxis_mat = {0};
quat_to_mat(zaxis_rot, zaxis_mat);
mat_print("zaxis_mat: ", zaxis_mat);
draw_grid(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){120, 120, 120, 255}, 0.01f, 12.0f, 12.0f, 12);
while(true) {
SDL_Event event;
while( sdl2_poll_event(&event) ) {
if( sdl2_handle_quit(event) ) {
goto done;
}
sdl2_handle_resize(event);
arcball_handle_resize(&arcball, event);
arcball_handle_mouse(&arcball, event);
}
sdl2_gl_set_swap_interval(0);
ogl_debug( glClearDepth(1.0f);
glClearColor(.0f, .0f, .0f, 1.0f);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); );
gametime_advance(&time, sdl2_time_delta());
gametime_integrate(&time);
canvas_render_layers(&global_static_canvas, 0, MAX_CANVAS_LAYERS, &arcball.camera, (Mat)IDENTITY_MAT);
sdl2_gl_swap_window(window);
}
QuatP* qfrom_euler_angles(float x, float y, float z, Quat q) {
quat_from_euler_angles(x, y, z, q);
return q;
}