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);
}
}
int Game::on_frame(void) {
// Handle OS events
float delta_x = 0.0f;
float delta_y = 0.0f;
const SystemEvent* event = app_pop_event();
while (event) {
switch(event->type) {
case kEventResize:
_render->resize(event->data.resize.width, event->data.resize.height);
printf("W: %d H: %d\n", event->data.resize.width, event->data.resize.height);
break;
case kEventKeyDown:
if(event->data.key == KEY_ESCAPE)
return 1;
if(event->data.key == KEY_F1)
_render->toggle_debug_graphics();
if(event->data.key == KEY_F2)
_render->toggle_deferred();
break;
case kEventMouseDown:
if(event->data.mouse.button == MOUSE_LEFT)
app_lock_and_hide_cursor();
debug_output("Mouse: %.0f %.0f\n", event->data.mouse.x, event->data.mouse.y);
break;
case kEventMouseUp:
if(event->data.mouse.button == MOUSE_LEFT)
app_unlock_and_show_cursor();
break;
case kEventMouseMove:
delta_x += event->data.mouse.x;
delta_y += event->data.mouse.y;
break;
default:
break;
}
event = app_pop_event();
}
// Beginning of frame stuff
_delta_time = (float)timer_delta_time(&_timer);
update_fps(&_fps, _delta_time);
float3 xaxis = {1.0f, 0.0f, 0.0f};
quaternion q = quaternionFromAxisAngle(&xaxis, _delta_time*0.15f);
Transform t = _world.entity(_sun_id)->transform();
t.orientation = quaternionMultiply(&q, &t.orientation);
//_world.entity(_sun_id)->set_transform(t);
if(quaternionGetZAxis(&t.orientation).y > 0.0f) {
//_world.entity(_sun_id)->deactivate_component(kLightComponent);
} else {
//_world.entity(_sun_id)->activate_component(kLightComponent);
}
// Frame
_control_camera(delta_x, delta_y);
float4x4 view = TransformGetMatrix(&_camera);
_render->set_3d_view_matrix(view);
_world.update(_delta_time);
_render->render();
// End of frame stuff
if(++_frame_count % 16 == 0) {
debug_output("%.2fms (%.0f FPS)\n", get_frametime(&_fps), get_fps(&_fps));
}
return 0;
}
