diff options
| -rw-r--r-- | examples/solarsystem.cpp | 80 |
1 files changed, 56 insertions, 24 deletions
diff --git a/examples/solarsystem.cpp b/examples/solarsystem.cpp index bf8c828..2aff76c 100644 --- a/examples/solarsystem.cpp +++ b/examples/solarsystem.cpp @@ -10,6 +10,7 @@ #include <cassert> #include <cstdlib> +#include <cstring> #include <limits> #include <memory> #include <numbers> @@ -34,10 +35,47 @@ using namespace pixel; using namespace pixel::literals; +static const uint8_t rgba_white[/*4*/] = { 255, 255, 255, 255 }; +static const uint8_t rgba_black[/*4*/] = { 0, 0, 0, 255 }; +// static const uint8_t rgba_gray[/*4*/] = { 170, 170, 170, 255 }; +static const uint8_t rgba_yellow[/*4*/] = { 255, 255, 0, 255 }; +static const uint8_t rgba_red[/*4*/] = { 255, 0, 0, 255 }; +// static const uint8_t rgba_green[/*4*/] = { 0, 255, 0, 255 }; +// static const uint8_t rgba_blue[/*4*/] = { 0, 0, 255, 255 }; + +static const float text_lum0 = 0.75f; +static const float text_lum1 = 0.85f; +static const int text_height = 24; + static bool draw_all_orbits = false; static bool ref_cbody_stop = false; static bool show_cbody_velo = false; static float gravity_scale = 1; +static bool color_inverse = false; + +static f4::vec_t vec4_text_color0(text_lum0, text_lum0, text_lum0, 1.0f); +static f4::vec_t vec4_text_color1(text_lum1, text_lum1, text_lum1, 1.0f); +static uint8_t rgba_orbit[/*4*/] = { 255, 255, 255, 255 }; +static uint8_t rgba_dbg_velo[/*4*/] = { 255, 255, 0, 255 }; + +static void set_colorinv(bool v) noexcept { + float lum0, lum1; + if(v) { + color_inverse = true; + lum0 = 1.0f - text_lum0; + lum1 = 1.0f - text_lum1; + ::memcpy(rgba_orbit, rgba_black, sizeof(rgba_black)); + ::memcpy(rgba_dbg_velo, rgba_red, sizeof(rgba_red)); + } else { + color_inverse = false; + lum0 = text_lum0; + lum1 = text_lum1; + ::memcpy(rgba_orbit, rgba_white, sizeof(rgba_white)); + ::memcpy(rgba_dbg_velo, rgba_yellow, sizeof(rgba_yellow)); + } + vec4_text_color0 = f4::vec_t(lum0, lum0, lum0, 1.0f); + vec4_text_color1 = f4::vec_t(lum1, lum1, lum1, 1.0f); +} extern "C" { EMSCRIPTEN_KEEPALIVE void set_draw_all_orbits(bool v) noexcept { draw_all_orbits = v; } @@ -46,19 +84,6 @@ extern "C" { EMSCRIPTEN_KEEPALIVE void set_gravityscale(int v) noexcept { gravity_scale = static_cast<float>(v); } } -static const uint8_t rgba_white[/*4*/] = { 255, 255, 255, 255 }; -// static const uint8_t rgba_gray[/*4*/] = { 170, 170, 170, 255 }; -static const uint8_t rgba_yellow[/*4*/] = { 255, 255, 0, 255 }; -static const uint8_t rgba_red[/*4*/] = { 255, 0, 0, 255 }; -// static const uint8_t rgba_green[/*4*/] = { 0, 255, 0, 255 }; -// static const uint8_t rgba_blue[/*4*/] = { 0, 0, 255, 255 }; - -static const float text_lum0 = 0.75f; -static const float text_lum1 = 0.85f; -static const f4::vec_t vec4_text_color0(text_lum0, text_lum0, text_lum0, 1.0f); -static const f4::vec_t vec4_text_color1(text_lum1, text_lum1, text_lum1, 1.0f); -static const int text_height = 24; - enum class cbodyid_t : size_t { none = std::numeric_limits<size_t>::max(), sun = 0, @@ -203,7 +228,7 @@ class CBody { float _d_sun; // [m] float _radius; // [m] double _mass; // [kg] - f3::vec_t _velo; // [m/s] + f3::vec_t _velo; // [m/s] float _GM; // GM = g * r^2 = [m^3 / s^2] f3::point_t _center; std::string _id_s; @@ -227,9 +252,9 @@ class CBody { { CBodyConst cbc = CBodyConstants[number(_id)]; size_t id_idx = number(_id); - if( 0 < id_idx && - dataset_idx < solarDataSet.setCount - && id_idx <= number(cbodyid_t::pluto)) + if( 0 < id_idx && + dataset_idx < solarDataSet.setCount + && id_idx <= number(cbodyid_t::pluto)) { // not sun and not oobj const SolarData& solar_data = solarDataSet.set[dataset_idx]; _world_time.tv_sec = solar_data.time_u; // [s] @@ -325,7 +350,8 @@ class CBody { } _center += _velo * dt; - if( (float)(wts - _orbit_world_time_last).tv_sec >= 1_week ) { + const si_time_t orbit_th = color_inverse ? 0 : 1_day; + if( (float)(wts - _orbit_world_time_last).tv_sec > orbit_th ) { _orbit_points.emplace_back(_center.x, _center.y); _orbit_world_time_last = wts; } @@ -350,7 +376,7 @@ class CBody { void draw(bool filled, bool orbit) { if( orbit ) { - set_pixel_color(rgba_white); + set_pixel_color(rgba_orbit); for(f2::point_t &p : _orbit_points){ p.draw(); } @@ -361,8 +387,8 @@ class CBody { f2::disk_t body = f2::disk_t(c, _radius * _scale * global_scale()); body.draw(filled); if( show_cbody_velo ) { - set_pixel_color(rgba_yellow); - f2::lineseg_t::draw(c, c +v*_time_scale_last); + set_pixel_color(rgba_dbg_velo); + f2::lineseg_t::draw(c, c +v*_time_scale_last); } } void clear_orbit() { @@ -615,9 +641,13 @@ void mainloop() { } // black background - clear_pixel_fb( 0, 0, 0, 0); - - set_pixel_color(255, 255, 255, 255); + if(color_inverse) { + clear_pixel_fb( 255, 255, 255, 255); + set_pixel_color(rgba_black); + } else { + clear_pixel_fb( 0, 0, 0, 0); + set_pixel_color(rgba_white); + } if( nullptr != selPlanetNextPos ) { selPlanetNextPos->draw(false, false); @@ -654,6 +684,8 @@ int main(int argc, char *argv[]) } else if( 0 == strcmp("-fps", argv[i]) && i+1<argc) { pixel::forced_fps = atoi(argv[i+1]); ++i; + } else if( 0 == strcmp("-color_inv", argv[i]) ) { + set_colorinv(true); } else if( 0 == strcmp("-show_velo", argv[i]) ) { show_cbody_velo = true; } else if( 0 == strcmp("-max_planet_id", argv[i]) && i+1<argc) { |