void camera_control_joyorbit(camera* c, float timestep) {
if (joystick_count() == 0) return;
SDL_Joystick* mainstick = joystick_get(0);
int x_move = SDL_JoystickGetAxis(mainstick, 0);
int y_move = SDL_JoystickGetAxis(mainstick, 1);
/* Dead Zone */
if (abs(x_move) < 10000) { x_move = 0; };
if (abs(y_move) < 10000) { y_move = 0; };
float a1 = (x_move / 32768.0) * -0.05;
float a2 = (y_move / 32768.0) * 0.05;
vec3 translation = c->target;
c->position = vec3_sub(c->position, translation);
c->target = vec3_sub(c->target, translation);
c->position = mat3_mul_vec3(mat3_rotation_y( a1 ), c->position );
vec3 axis = vec3_normalize(vec3_cross( vec3_sub(c->position, c->target) , vec3_new(0,1,0) ));
c->position = mat3_mul_vec3(mat3_rotation_axis_angle(axis, a2 ), c->position );
c->position = vec3_add(c->position, translation);
c->target = vec3_add(c->target, translation);
}
void camera_control_orbit(camera* c, SDL_Event e) {
float a1 = 0;
float a2 = 0;
vec3 axis;
vec3 translation = c->target;
c->position = vec3_sub(c->position, translation);
c->target = vec3_sub(c->target, translation);
switch(e.type) {
case SDL_MOUSEMOTION:
if (e.motion.state & SDL_BUTTON(1)) {
a1 = e.motion.xrel * -0.005;
a2 = e.motion.yrel * 0.005;
c->position = mat3_mul_vec3(mat3_rotation_y( a1 ), c->position );
axis = vec3_normalize(vec3_cross( vec3_sub(c->position, c->target) , vec3_new(0,1,0) ));
c->position = mat3_mul_vec3(mat3_rotation_angle_axis(a2, axis), c->position );
}
break;
case SDL_MOUSEWHEEL:
c->position = vec3_add(c->position, vec3_mul(vec3_normalize(c->position), -e.wheel.y));
break;
}
c->position = vec3_add(c->position, translation);
c->target = vec3_add(c->target, translation);
}
void camera_control_orbit(camera* c, SDL_Event e) {
float a1 = 0;
float a2 = 0;
vec3 axis;
vec3 translation = c->target;
c->position = vec3_sub(c->position, translation);
c->target = vec3_sub(c->target, translation);
switch(e.type) {
case SDL_MOUSEMOTION:
if (e.motion.state & SDL_BUTTON(1)) {
a1 = e.motion.xrel * -0.005;
a2 = e.motion.yrel * 0.005;
c->position = mat3_mul_vec3(mat3_rotation_y( a1 ), c->position );
axis = vec3_normalize(vec3_cross( vec3_sub(c->position, c->target) , vec3_new(0,1,0) ));
c->position = mat3_mul_vec3(mat3_rotation_axis_angle(axis, a2 ), c->position );
}
break;
case SDL_MOUSEBUTTONDOWN:
if (e.button.button == SDL_BUTTON_WHEELUP) {
c->position = vec3_sub(c->position, vec3_normalize(c->position));
}
if (e.button.button == SDL_BUTTON_WHEELDOWN) {
c->position = vec3_add(c->position, vec3_normalize(c->position));
}
break;
}
c->position = vec3_add(c->position, translation);
c->target = vec3_add(c->target, translation);
}
void update_game(Game* G)
{
float delta_time = (float)get_delta_time(G->timer);
int ii;
_control_camera(G, delta_time);
set_view_matrix(G->graphics, mat4_inverse(transform_get_matrix(G->camera)));
/* Dynamic Lights */
if(G->dynamic_lights) {
G->sun_light.position = mat3_mul_vector(vec3_create(5,5,0), mat3_rotation_y((float)get_running_time(G->timer)*0.5f));
G->light_transform += delta_time;
for(ii=0;ii<NUM_LIGHTS;++ii) {
if(ii % 2)
G->lights[ii].position.z = sinf((G->light_transform + ii * 1.0f)/2.0f) * 10.0f;
else
G->lights[ii].position.x = sinf((G->light_transform + ii * 1.0f)/2.0f) * 10.0f;
}
}
add_light(G->graphics, G->sun_light);
for(ii=0;ii<NUM_LIGHTS;++ii) {
add_light(G->graphics, G->lights[ii]);
}
render_scene(G->scene, G->graphics);
G->tap_timer += delta_time;
/* Calculate FPS */
G->fps_time += delta_time;
G->fps_count++;
if(G->fps_time >= 1.0f) {
G->fps = G->fps_count/G->fps_time;
system_log("FPS: %f\n", G->fps);
G->fps_time -= 1.0f;
G->fps_count = 0;
}
{
int width, height;
float scale = 50.0f;
float x = -G->width/2.0f;
float y = G->height/2.0f-scale;
char buffer[256] = {0};
// FPS
sprintf(buffer, "FPS: %.2f", G->fps);
add_string(G->ui, x, y, scale, buffer);
y -= scale;
// Renderer
switch(renderer_type(G->graphics)) {
case kForward: add_string(G->ui, x, y, scale, "Forward renderer"); break;
case kLightPrePass: add_string(G->ui, x, y, scale, "Deferred Lighting"); break;
case kDeferred: add_string(G->ui, x, y, scale, "Deferred Shading"); break;
default: assert(!"Invalid renderer"); break;
}
y -= scale;
// Resolution
graphics_size(G->graphics, &width, &height);
sprintf(buffer, "%dx%d", width, height);
add_string(G->ui, x, y, scale, buffer);
}
}
