apps/runner/src/eu/runner/main.cc
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include <utility> | ||
| 2 | |||
| 3 | // todo(Gustav): look into glad support | ||
| 4 | #define SDL_FUNCTION_POINTER_IS_VOID_POINTER | ||
| 5 | |||
| 6 | #include "SDL.h" | ||
| 7 | |||
| 8 | // #include <string> | ||
| 9 | |||
| 10 | #include "eu/log/log.h" | ||
| 11 | #include "eu/base/memorychunk.h" | ||
| 12 | |||
| 13 | #include "eu/core/geom.builder.h" | ||
| 14 | #include "eu/core/geom.h" | ||
| 15 | |||
| 16 | #include "eu/io/file.h" | ||
| 17 | #include "eu/io/mesh.h" | ||
| 18 | |||
| 19 | #include "eu/render/canvas.h" | ||
| 20 | #include "eu/render/state.h" | ||
| 21 | #include "eu/render/font.h" | ||
| 22 | #include "eu/render/opengl_utils.h" | ||
| 23 | #include "eu/render/texture.io.h" | ||
| 24 | #include "eu/render/camera.h" | ||
| 25 | #include "eu/render/compiledmesh.h" | ||
| 26 | #include "eu/render/enable_high_performance_graphics.h" | ||
| 27 | #include "eu/render/postproc.h" | ||
| 28 | #include "eu/render/renderer.h" | ||
| 29 | #include "eu/render/world.h" | ||
| 30 | |||
| 31 | #include "eu/runner/script.h" | ||
| 32 | #include "eu/runner/input.h" | ||
| 33 | #include "eu/runner/entity.h" | ||
| 34 | |||
| 35 | #include "eu/kdl/kdl.h" | ||
| 36 | |||
| 37 | |||
| 38 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 39 | #include "eu/imgui/ui.h" | ||
| 40 | #include "eu/imgui/init.h" | ||
| 41 | |||
| 42 | #include "dear_imgui/imgui.h" | ||
| 43 | #include "dear_imgui/backends/imgui_impl_sdl3.h" | ||
| 44 | #include "dear_imgui/backends/imgui_impl_opengl3.h" | ||
| 45 | |||
| 46 | ✗ | static void imgui_color(const char* const label, eu::Rgb* color) | |
| 47 | { | ||
| 48 | ✗ | ImGui::ColorEdit3(label, &color->r); | |
| 49 | ✗ | } | |
| 50 | #endif | ||
| 51 | |||
| 52 | |||
| 53 | ENABLE_HIGH_PERFORMANCE_GRAPHICS | ||
| 54 | |||
| 55 | using namespace eu; | ||
| 56 | using namespace std::string_view_literals; | ||
| 57 | |||
| 58 | // todo(Gustav): move to io | ||
| 59 | ✗ | eu::render::ShaderSource load_shader(const std::string& name) | |
| 60 | { | ||
| 61 | return { | ||
| 62 | ✗ | .vertex = eu::io::string_from_file(name + ".vert.glsl"), | |
| 63 | ✗ | .fragment = eu::io::string_from_file(name + ".frag.glsl") | |
| 64 | ✗ | }; | |
| 65 | ✗ | } | |
| 66 | |||
| 67 | ✗ | eu::Size size_from_v2(const eu::v2& v) | |
| 68 | { | ||
| 69 | ✗ | return eu::Size{ .width = eu::int_from_float(v.x), .height = eu::int_from_float(v.y) }; | |
| 70 | } | ||
| 71 | |||
| 72 | ✗ | std::shared_ptr<eu::render::Texture2d> load_texture(const std::string& path, eu::render::ColorData cd, | |
| 73 | eu::render::TextureEdge texture_edge = eu::render::TextureEdge::repeat, | ||
| 74 | eu::render::Transparency transparency = eu::render::Transparency::exclude) | ||
| 75 | { | ||
| 76 | ✗ | const auto bin = eu::io::bytes_from_file(path); | |
| 77 | return std::make_shared<eu::render::Texture2d>( | ||
| 78 | ✗ | load_image_from_embedded(SEND_DEBUG_LABEL_MANY(path) embedded_binary { reinterpret_cast<const unsigned int*>(bin.data()), static_cast<unsigned int>(bin.size()) }, texture_edge, eu::render::TextureRenderStyle::mipmap, transparency, cd) | |
| 79 | ✗ | ); | |
| 80 | ✗ | } | |
| 81 | |||
| 82 | ✗ | std::shared_ptr<eu::render::Texture2d> create_texture(DEBUG_LABEL_ARG_MANY eu::core::SingleColor pixel_color, eu::render::ColorData cd) | |
| 83 | { | ||
| 84 | return std::make_shared<eu::render::Texture2d>( | ||
| 85 | ✗ | load_image_from_color(SEND_DEBUG_LABEL_MANY(debug_label) pixel_color, eu::render::TextureEdge::repeat, eu::render::TextureRenderStyle::pixel, eu::render::Transparency::exclude, cd) | |
| 86 | ✗ | ); | |
| 87 | } | ||
| 88 | |||
| 89 | struct Level | ||
| 90 | { | ||
| 91 | std::unordered_map<std::string, std::unique_ptr<eu::render::CompiledMesh>> meshes; | ||
| 92 | std::vector<std::unique_ptr<render::MeshInWorld>> instances; | ||
| 93 | |||
| 94 | ✗ | void load(const std::string& path, render::World* world, std::shared_ptr<render::DefaultMaterial> material, const core::CompiledGeomVertexAttributes& layout) | |
| 95 | { | ||
| 96 | // todo(Gustav): this is very hacky but just something so we can play a level | ||
| 97 | ✗ | v3 offset = { 0.0f, 0.0f, 0.0f }; | |
| 98 | ✗ | v3 size = { 1.0f, 1.0f, 1.0f }; | |
| 99 | |||
| 100 | ✗ | const auto parsed = kdl::parse(eu::io::string_from_file(path)); | |
| 101 | ✗ | if (parsed.document.has_value() == false) | |
| 102 | { | ||
| 103 | ✗ | LOG_WARN("Failed to parse '{}': {}", path, parsed.error); | |
| 104 | ✗ | return; | |
| 105 | } | ||
| 106 | |||
| 107 | ✗ | const auto& doc = *parsed.document; | |
| 108 | |||
| 109 | ✗ | for (const auto& node: doc) | |
| 110 | { | ||
| 111 | ✗ | if (node.name == "mesh") | |
| 112 | { | ||
| 113 | ✗ | const auto key = node.args[0].as_string(); | |
| 114 | ✗ | const auto file = node.args[1].as_string(); | |
| 115 | |||
| 116 | ✗ | const auto mesh = eu::io::mesh_from_file(file); | |
| 117 | ✗ | auto compiled = eu::render::compile_mesh(USE_DEBUG_LABEL_MANY(file) mesh, layout); | |
| 118 | |||
| 119 | ✗ | meshes[key] = std::make_unique<eu::render::CompiledMesh>(compiled); | |
| 120 | ✗ | } | |
| 121 | ✗ | else if (node.name == "offset") | |
| 122 | { | ||
| 123 | ✗ | const auto x = node.args[0].as_number().as<float>().value_or(0.0f); | |
| 124 | ✗ | const auto y = node.args[1].as_number().as<float>().value_or(0.0f); | |
| 125 | ✗ | const auto z = node.args[2].as_number().as<float>().value_or(0.0f); | |
| 126 | ✗ | offset = { x, y, z }; | |
| 127 | } | ||
| 128 | ✗ | else if (node.name == "cell_size") | |
| 129 | { | ||
| 130 | ✗ | const auto x = node.args[0].as_number().as<float>().value_or(0.0f); | |
| 131 | ✗ | const auto y = node.args[1].as_number().as<float>().value_or(0.0f); | |
| 132 | ✗ | const auto z = node.args[2].as_number().as<float>().value_or(0.0f); | |
| 133 | ✗ | size = {x, y, z}; | |
| 134 | } | ||
| 135 | ✗ | else if (node.name == "item") | |
| 136 | { | ||
| 137 | ✗ | const auto x = node.args[0].as_number().as<float>().value_or(0.0f); | |
| 138 | ✗ | const auto y = node.args[1].as_number().as<float>().value_or(0.0f); | |
| 139 | ✗ | const auto z = node.args[2].as_number().as<float>().value_or(0.0f); | |
| 140 | ✗ | const v3 pos = { x*size.x, y*size.y, z*size.z }; | |
| 141 | ✗ | const auto item = node.properties.at("item").as_string(); | |
| 142 | ✗ | const auto found = meshes.find(item); | |
| 143 | ✗ | if (found != meshes.end()) | |
| 144 | { | ||
| 145 | ✗ | render::MeshInWorld car; | |
| 146 | ✗ | car.add_to_world(found->second.get(), world, material); | |
| 147 | ✗ | car.set_transform(eu::render::transform_from_rotation(offset + pos, Ypr{0_deg, 0_deg, 0_deg})); | |
| 148 | ✗ | } | |
| 149 | else | ||
| 150 | { | ||
| 151 | ✗ | LOG_WARN("Mesh '{}' not found for item in level file", item); | |
| 152 | } | ||
| 153 | ✗ | } | |
| 154 | else | ||
| 155 | { | ||
| 156 | ✗ | LOG_WARN("Unknown node in level file: '{}'", node.name); | |
| 157 | } | ||
| 158 | } | ||
| 159 | ✗ | } | |
| 160 | }; | ||
| 161 | |||
| 162 | |||
| 163 | struct Time | ||
| 164 | { | ||
| 165 | Uint64 now = SDL_GetPerformanceCounter(); | ||
| 166 | Uint64 last = 0; | ||
| 167 | |||
| 168 | |||
| 169 | ✗ | float calculate() | |
| 170 | { | ||
| 171 | ✗ | last = now; | |
| 172 | ✗ | now = SDL_GetPerformanceCounter(); | |
| 173 | |||
| 174 | ✗ | const auto diff = static_cast<float>(now - last); | |
| 175 | ✗ | const auto pfc = static_cast<float>(SDL_GetPerformanceFrequency()); | |
| 176 | ✗ | return diff / pfc; | |
| 177 | } | ||
| 178 | }; | ||
| 179 | |||
| 180 | |||
| 181 | struct MeshSpatialComponent : runner::SpatialComponent | ||
| 182 | { | ||
| 183 | render::MeshInWorld car; | ||
| 184 | |||
| 185 | eu::v3 position = { 0.0f, -1.8f, -10.0f }; | ||
| 186 | eu::Ypr rotation = { .yaw = 30.0_deg, .pitch = 30.0_deg, .roll = 30.0_deg }; | ||
| 187 | |||
| 188 | ✗ | const char* display() override | |
| 189 | { | ||
| 190 | ✗ | return "MeshSpatialComponent"; | |
| 191 | } | ||
| 192 | |||
| 193 | ✗ | void imgui() override | |
| 194 | { | ||
| 195 | ✗ | runner::SpatialComponent::imgui(); | |
| 196 | ✗ | imgui::drag("Position", &position); | |
| 197 | ✗ | imgui::drag("Rotation", &rotation); | |
| 198 | ✗ | } | |
| 199 | |||
| 200 | ✗ | void update_transform() | |
| 201 | { | ||
| 202 | ✗ | set_transform(eu::render::transform_from_rotation(position, rotation)); | |
| 203 | ✗ | car.set_transform(get_transform()); | |
| 204 | ✗ | } | |
| 205 | |||
| 206 | ✗ | MeshSpatialComponent(render::CompiledMesh* mesh, render::World* render_world, std::shared_ptr<render::Material> material) | |
| 207 | ✗ | { | |
| 208 | ✗ | car.add_to_world(mesh, render_world, std::move(material)); | |
| 209 | ✗ | update_transform(); | |
| 210 | ✗ | } | |
| 211 | |||
| 212 | EU_DEC_COMPONENT_TYPE(); | ||
| 213 | }; | ||
| 214 | |||
| 215 | ✗ | EU_IMP_COMPONENT_TYPE(MeshSpatialComponent, runner::Component) | |
| 216 | |||
| 217 | ✗ | void boolean(const char* label, bool b) | |
| 218 | { | ||
| 219 | ✗ | ImGui::TextUnformatted(label); | |
| 220 | ✗ | ImGui::SameLine(); | |
| 221 | ✗ | ImGui::TextUnformatted(b ? "TRUE" : "false"); | |
| 222 | ✗ | } | |
| 223 | |||
| 224 | struct InputSystem : runner::EntitySystem | ||
| 225 | { | ||
| 226 | runner::Input* input; | ||
| 227 | MeshSpatialComponent* mesh = nullptr; | ||
| 228 | |||
| 229 | ✗ | const char* display() override | |
| 230 | { | ||
| 231 | ✗ | return "Input"; | |
| 232 | } | ||
| 233 | |||
| 234 | ✗ | void imgui() override | |
| 235 | { | ||
| 236 | ✗ | boolean("has mesh", mesh != nullptr); | |
| 237 | ✗ | } | |
| 238 | |||
| 239 | ✗ | explicit InputSystem(runner::Input* in) : input(in) | |
| 240 | { | ||
| 241 | ✗ | } | |
| 242 | |||
| 243 | ✗ | runner::UpdateStageAndPrio get_stage() override | |
| 244 | { | ||
| 245 | return | ||
| 246 | { | ||
| 247 | .stage = runner::UpdateStage::before_physics, | ||
| 248 | .prio = 100 | ||
| 249 | ✗ | }; | |
| 250 | } | ||
| 251 | |||
| 252 | ✗ | void on_root_changed(runner::SpatialComponent*) override | |
| 253 | { | ||
| 254 | ✗ | } | |
| 255 | |||
| 256 | ✗ | void add_component(runner::Component* component) override | |
| 257 | { | ||
| 258 | ✗ | if (MeshSpatialComponent* mc = runner::component_cast<MeshSpatialComponent>(component); mc) | |
| 259 | { | ||
| 260 | ✗ | mesh = mc; | |
| 261 | } | ||
| 262 | ✗ | } | |
| 263 | |||
| 264 | ✗ | void update(float dt) override | |
| 265 | { | ||
| 266 | ✗ | if (mesh && input && input->get_current_frame().binds[0].current > 0.5f) | |
| 267 | { | ||
| 268 | ✗ | mesh->position += kk::in * dt; | |
| 269 | } | ||
| 270 | |||
| 271 | ✗ | if (mesh) | |
| 272 | { | ||
| 273 | ✗ | mesh->update_transform(); | |
| 274 | } | ||
| 275 | ✗ | } | |
| 276 | }; | ||
| 277 | |||
| 278 | struct TargetComponent : runner::Component | ||
| 279 | { | ||
| 280 | m4 target = m4_identity; | ||
| 281 | |||
| 282 | ✗ | const char* display() override | |
| 283 | { | ||
| 284 | ✗ | return "target"; | |
| 285 | } | ||
| 286 | |||
| 287 | ✗ | void imgui() override | |
| 288 | { | ||
| 289 | // todo(Gustav): display matrix | ||
| 290 | ✗ | } | |
| 291 | |||
| 292 | EU_DEC_COMPONENT_TYPE(); | ||
| 293 | }; | ||
| 294 | ✗ | EU_IMP_COMPONENT_TYPE(TargetComponent, runner::Component) | |
| 295 | |||
| 296 | struct CameraSpatialComponent : runner::SpatialComponent | ||
| 297 | { | ||
| 298 | ✗ | const char* display() override | |
| 299 | { | ||
| 300 | ✗ | return "camera spatial"; | |
| 301 | } | ||
| 302 | |||
| 303 | ✗ | void imgui() override | |
| 304 | { | ||
| 305 | ✗ | runner::SpatialComponent::imgui(); | |
| 306 | ✗ | } | |
| 307 | // todo(Gustav): add extra camera settings... | ||
| 308 | EU_DEC_COMPONENT_TYPE(); | ||
| 309 | }; | ||
| 310 | ✗ | EU_IMP_COMPONENT_TYPE(CameraSpatialComponent, runner::SpatialComponent); | |
| 311 | |||
| 312 | struct FollowCameraSystem : runner::EntitySystem | ||
| 313 | { | ||
| 314 | ✗ | runner::UpdateStageAndPrio get_stage() override | |
| 315 | { | ||
| 316 | return | ||
| 317 | { | ||
| 318 | .stage = runner::UpdateStage::after_physics, | ||
| 319 | .prio = 100 | ||
| 320 | ✗ | }; | |
| 321 | } | ||
| 322 | |||
| 323 | TargetComponent* target = nullptr; | ||
| 324 | CameraSpatialComponent* camera = nullptr; | ||
| 325 | |||
| 326 | ✗ | const char* display() override | |
| 327 | { | ||
| 328 | ✗ | return "Follow camera"; | |
| 329 | } | ||
| 330 | |||
| 331 | v3 offset = kk::out * 3; | ||
| 332 | ✗ | void imgui() override | |
| 333 | { | ||
| 334 | ✗ | boolean("Target", target != nullptr); | |
| 335 | ✗ | boolean("camera", camera != nullptr); | |
| 336 | ✗ | imgui::drag("offset", &offset); | |
| 337 | ✗ | imgui::gear("gear", &offset); | |
| 338 | ✗ | } | |
| 339 | |||
| 340 | ✗ | void on_root_changed(runner::SpatialComponent*) override | |
| 341 | { | ||
| 342 | ✗ | } | |
| 343 | |||
| 344 | ✗ | void add_component(runner::Component* component) override | |
| 345 | { | ||
| 346 | ✗ | if (auto* tar = runner::component_cast<TargetComponent>(component)) | |
| 347 | { | ||
| 348 | ✗ | target = tar; | |
| 349 | ✗ | LOG_INFO("Follow camera found target"); | |
| 350 | } | ||
| 351 | ✗ | else if (auto* cam = runner::component_cast<CameraSpatialComponent>(component)) | |
| 352 | { | ||
| 353 | ✗ | camera = cam; | |
| 354 | ✗ | LOG_INFO("Follow camera found camera"); | |
| 355 | } | ||
| 356 | ✗ | } | |
| 357 | ✗ | void update(float) override | |
| 358 | { | ||
| 359 | ✗ | if (!target) { return; } | |
| 360 | ✗ | if (!camera) { return; } | |
| 361 | |||
| 362 | ✗ | const auto focus = target->target.get_translation(); | |
| 363 | const auto pos_from_focus = | ||
| 364 | ✗ | target->target.get_transformed_vec(kk::right) * offset.x + | |
| 365 | ✗ | target->target.get_transformed_vec(kk::up) * offset.y + | |
| 366 | ✗ | target->target.get_transformed_vec(kk::in) * offset.z ; | |
| 367 | ✗ | const auto pos = focus + pos_from_focus; | |
| 368 | ✗ | const auto rot = Q::look_at(pos, focus, kk::up); | |
| 369 | ✗ | if (!rot) | |
| 370 | { | ||
| 371 | ✗ | return; | |
| 372 | } | ||
| 373 | |||
| 374 | ✗ | const auto rot_mat = m4::from(*rot); | |
| 375 | ✗ | if (!rot_mat) | |
| 376 | { | ||
| 377 | ✗ | return; | |
| 378 | } | ||
| 379 | |||
| 380 | ✗ | const auto mat = *rot_mat * m4::from_translation(pos); | |
| 381 | |||
| 382 | // const auto nt = target->target.get_translated(offset); | ||
| 383 | ✗ | camera->set_transform(mat); | |
| 384 | } | ||
| 385 | }; | ||
| 386 | |||
| 387 | namespace tag | ||
| 388 | { | ||
| 389 | constexpr Hsh CameraSpatialSource = "camera_spatial_src_tag"sv; | ||
| 390 | constexpr Hsh CameraDestination = "camera_dst_tag"sv; | ||
| 391 | } | ||
| 392 | |||
| 393 | struct UpdateCameraTarget : runner::WorldSystem | ||
| 394 | { | ||
| 395 | runner::SpatialComponent* src_entity = nullptr; | ||
| 396 | TargetComponent* dst_entity = nullptr; | ||
| 397 | |||
| 398 | ✗ | const char* display() override | |
| 399 | { | ||
| 400 | ✗ | return "Update camera target"; | |
| 401 | } | ||
| 402 | |||
| 403 | ✗ | void imgui() override | |
| 404 | { | ||
| 405 | ✗ | boolean("src entity", src_entity != nullptr); | |
| 406 | ✗ | boolean("dst entity", dst_entity != nullptr); | |
| 407 | ✗ | } | |
| 408 | |||
| 409 | ✗ | runner::UpdateStageAndPrio get_stage() override | |
| 410 | { | ||
| 411 | return { | ||
| 412 | .stage = runner::UpdateStage::after_physics, | ||
| 413 | .prio = 100 | ||
| 414 | ✗ | }; | |
| 415 | } | ||
| 416 | |||
| 417 | ✗ | void on_root_changed(runner::Entity* entity, runner::SpatialComponent* component) override | |
| 418 | { | ||
| 419 | ✗ | if (entity->has_tag(tag::CameraSpatialSource)) | |
| 420 | { | ||
| 421 | ✗ | LOG_INFO("Found spatial source"); | |
| 422 | ✗ | src_entity = component; | |
| 423 | } | ||
| 424 | ✗ | } | |
| 425 | |||
| 426 | ✗ | void add_component(runner::Entity* entity, runner::Component* component) override | |
| 427 | { | ||
| 428 | ✗ | if (entity->has_tag(tag::CameraDestination)) | |
| 429 | { | ||
| 430 | ✗ | if (auto* target = runner::component_cast<TargetComponent>(component)) | |
| 431 | { | ||
| 432 | ✗ | LOG_INFO("Found camera destination on {}", entity->name); | |
| 433 | ✗ | dst_entity = target; | |
| 434 | } | ||
| 435 | } | ||
| 436 | ✗ | } | |
| 437 | |||
| 438 | ✗ | void update(float) override | |
| 439 | { | ||
| 440 | ✗ | if (!src_entity) { return; } | |
| 441 | ✗ | if (!dst_entity) { return; } | |
| 442 | |||
| 443 | ✗ | dst_entity->target = src_entity->get_transform(); | |
| 444 | } | ||
| 445 | }; | ||
| 446 | |||
| 447 | struct CameraFetcherSystem : runner::WorldSystem | ||
| 448 | { | ||
| 449 | ✗ | runner::UpdateStageAndPrio get_stage() override | |
| 450 | { | ||
| 451 | return { | ||
| 452 | .stage = runner::UpdateStage::end_frame, | ||
| 453 | .prio = 100 | ||
| 454 | ✗ | }; | |
| 455 | } | ||
| 456 | |||
| 457 | CameraSpatialComponent* camera = nullptr; | ||
| 458 | m4 transform = m4_identity; | ||
| 459 | |||
| 460 | ✗ | const char* display() override | |
| 461 | { | ||
| 462 | ✗ | return "Camera fetcher"; | |
| 463 | } | ||
| 464 | |||
| 465 | ✗ | void imgui() override | |
| 466 | { | ||
| 467 | ✗ | boolean("camera", camera != nullptr); | |
| 468 | //todo(Gustav): display transform | ||
| 469 | ✗ | } | |
| 470 | |||
| 471 | ✗ | void add_component(runner::Entity*, runner::Component* component) override | |
| 472 | { | ||
| 473 | ✗ | if (auto cam = runner::component_cast<CameraSpatialComponent>(component)) | |
| 474 | { | ||
| 475 | ✗ | LOG_INFO("Fetcher found camera"); | |
| 476 | ✗ | camera = cam; | |
| 477 | } | ||
| 478 | ✗ | } | |
| 479 | |||
| 480 | ✗ | void on_root_changed(runner::Entity*, runner::SpatialComponent*) override | |
| 481 | { | ||
| 482 | ✗ | } | |
| 483 | |||
| 484 | ✗ | void update(float) override | |
| 485 | { | ||
| 486 | ✗ | if (!camera) return; | |
| 487 | ✗ | transform = camera->get_transform(); | |
| 488 | } | ||
| 489 | |||
| 490 | ✗ | render::Camera fetch() const | |
| 491 | { | ||
| 492 | ✗ | render::Camera r; | |
| 493 | ✗ | r.position = transform.get_translation(); | |
| 494 | ✗ | return r; | |
| 495 | } | ||
| 496 | }; | ||
| 497 | |||
| 498 | ✗ | int main(int, char**) | |
| 499 | { | ||
| 500 | ✗ | const char* glsl_version = "#version 130"; | |
| 501 | |||
| 502 | // todo(Gustav): set app metadata | ||
| 503 | |||
| 504 | ✗ | if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) == false) | |
| 505 | { | ||
| 506 | ✗ | LOG_ERR("Error initializing SDL: {}", SDL_GetError()); | |
| 507 | ✗ | return -1; | |
| 508 | } | ||
| 509 | |||
| 510 | { | ||
| 511 | ✗ | const auto str = [](int version) | |
| 512 | { | ||
| 513 | ✗ | const auto major = SDL_VERSIONNUM_MAJOR(version); | |
| 514 | ✗ | const auto minor = SDL_VERSIONNUM_MINOR(version); | |
| 515 | ✗ | const auto micro = SDL_VERSIONNUM_MICRO(version); | |
| 516 | ✗ | return fmt::format("{0}.{1}.{2}", major, minor, micro); | |
| 517 | }; | ||
| 518 | ✗ | const int version_loaded = SDL_GetVersion(); | |
| 519 | ✗ | LOG_INFO("SDL {0} initialized with {1}", str(SDL_VERSION), str(version_loaded)); | |
| 520 | } | ||
| 521 | |||
| 522 | // todo(Gustav): move to some shared sdl lib instead? as this shouldn't use dear imgui and 100% rely on sdl | ||
| 523 | ✗ | const auto app_scale = eu::imgui::calculate_app_scale(); | |
| 524 | ✗ | auto [window_width, window_height] = eu::imgui::rescale_window(1280, 720, app_scale); | |
| 525 | |||
| 526 | #if defined(__APPLE__) | ||
| 527 | // GL 3.2 Core + GLSL 150 | ||
| 528 | const char* glsl_version = "#version 150"; | ||
| 529 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG); // Always required on Mac | ||
| 530 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | ||
| 531 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); | ||
| 532 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2); | ||
| 533 | #else | ||
| 534 | // GL 3.0 + GLSL 130 | ||
| 535 | // const char* glsl_version = "#version 130"; | ||
| 536 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG); | |
| 537 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | |
| 538 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4); | |
| 539 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3); // was 0 in dear imgui example?? | |
| 540 | #endif | ||
| 541 | |||
| 542 | ✗ | SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); | |
| 543 | ✗ | SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); | |
| 544 | |||
| 545 | ✗ | SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); | |
| 546 | ✗ | SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1); | |
| 547 | |||
| 548 | ✗ | SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8); | |
| 549 | ✗ | SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8); | |
| 550 | ✗ | SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8); | |
| 551 | ✗ | SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8); | |
| 552 | |||
| 553 | ✗ | SDL_Window* window = SDL_CreateWindow("Runner", | |
| 554 | window_width, window_height, SDL_WINDOW_OPENGL | SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_RESIZABLE); | ||
| 555 | ✗ | if (!window) { | |
| 556 | ✗ | LOG_ERR("Error creating window: {}", SDL_GetError()); | |
| 557 | ✗ | return -1; | |
| 558 | } | ||
| 559 | |||
| 560 | ✗ | auto* glContext = SDL_GL_CreateContext(window); | |
| 561 | ✗ | SDL_GetWindowSize(window, &window_width, &window_height); | |
| 562 | ✗ | if (!glContext) { | |
| 563 | ✗ | LOG_ERR("Error creating gl context: {}", SDL_GetError()); | |
| 564 | ✗ | return -1; | |
| 565 | } | ||
| 566 | |||
| 567 | /* OpenGL setup */ | ||
| 568 | ✗ | const int glad_result = gladLoadGLLoader(SDL_GL_GetProcAddress); | |
| 569 | ✗ | if (glad_result == 0) | |
| 570 | { | ||
| 571 | ✗ | LOG_ERR("Failed to init glad, error: {0}", glad_result); | |
| 572 | ✗ | return -1; | |
| 573 | } | ||
| 574 | |||
| 575 | { | ||
| 576 | ✗ | if (GLAD_GL_VERSION_1_0) { | |
| 577 | ✗ | const std::string gl_vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR)); | |
| 578 | ✗ | const std::string gl_renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER)); | |
| 579 | ✗ | const std::string gl_version = reinterpret_cast<const char*>(glGetString(GL_VERSION)); | |
| 580 | ✗ | LOG_INFO("OpenGL Vendor: {0}", gl_vendor); | |
| 581 | ✗ | LOG_INFO("OpenGL Renderer: {0}", gl_renderer); | |
| 582 | ✗ | LOG_INFO("OpenGL Version: {0}", gl_version); | |
| 583 | ✗ | } | |
| 584 | |||
| 585 | ✗ | if (GLAD_GL_VERSION_2_0) { | |
| 586 | ✗ | const std::string gl_shading_language_version = reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)); | |
| 587 | ✗ | LOG_INFO("Version GLSL: {0}", gl_shading_language_version); | |
| 588 | ✗ | } | |
| 589 | } | ||
| 590 | |||
| 591 | ✗ | if (!GLAD_GL_VERSION_4_3) | |
| 592 | { | ||
| 593 | ✗ | LOG_ERR("OpenGL 4.3 not supported ({0}.{1} detected), aborting...", GLVersion.major, GLVersion.minor); | |
| 594 | ✗ | return -1; | |
| 595 | } | ||
| 596 | |||
| 597 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 598 | ✗ | IMGUI_CHECKVERSION(); | |
| 599 | ✗ | ImGui::CreateContext(); | |
| 600 | ✗ | ImGuiIO& io = ImGui::GetIO(); (void)io; | |
| 601 | ✗ | ImGui::StyleColorsDark(); | |
| 602 | ✗ | if (false == ImGui_ImplSDL3_InitForOpenGL(window, glContext)) | |
| 603 | { | ||
| 604 | ✗ | LOG_ERR("Failed to init ImGui SDL3 backend"); | |
| 605 | ✗ | return -1; | |
| 606 | } | ||
| 607 | ✗ | if (false == ImGui_ImplOpenGL3_Init(glsl_version)) | |
| 608 | { | ||
| 609 | ✗ | LOG_ERR("Failed to init ImGui OpenGL3 backend"); | |
| 610 | ✗ | return -1; | |
| 611 | } | ||
| 612 | |||
| 613 | ✗ | eu::imgui::setup_scale(app_scale); | |
| 614 | |||
| 615 | ✗ | bool show_demo_window = true; | |
| 616 | #endif | ||
| 617 | |||
| 618 | ✗ | eu::render::State states; | |
| 619 | ✗ | eu::render::Render2 render{ &states }; | |
| 620 | |||
| 621 | ✗ | eu::render::Assets assets; | |
| 622 | |||
| 623 | ✗ | assets.black = create_texture(SEND_DEBUG_LABEL_MANY("black") eu::core::color_from_rgba(0, 0, 0, 255), eu::render::ColorData::dont_care); | |
| 624 | ✗ | assets.white = create_texture(SEND_DEBUG_LABEL_MANY("white") eu::core::color_from_rgba(255, 255, 255, 255), eu::render::ColorData::dont_care); | |
| 625 | |||
| 626 | ✗ | assets.default_shader_source = load_shader("default_shader"); | |
| 627 | ✗ | assets.skybox_shader_source = load_shader("skybox"); | |
| 628 | |||
| 629 | ✗ | assets.pp_vert_glsl = eu::io::string_from_file("pp_vert.glsl"); | |
| 630 | ✗ | assets.pp_realize_frag_glsl = eu::io::string_from_file("pp_realize.frag.glsl"); | |
| 631 | ✗ | assets.pp_extract_frag_glsl = eu::io::string_from_file("pp_extract.frag.glsl"); | |
| 632 | ✗ | assets.pp_ping_pong_blur_frag_glsl = eu::io::string_from_file("pp_ping_pong_blur.frag.glsl"); | |
| 633 | |||
| 634 | ✗ | eu::render::Renderer renderer{ &states, &assets, eu::render::RenderSettings{} }; | |
| 635 | ✗ | if (renderer.is_loaded() == false) | |
| 636 | { | ||
| 637 | ✗ | return -1; | |
| 638 | } | ||
| 639 | |||
| 640 | ✗ | eu::runner::Input input; | |
| 641 | ✗ | if (false == input.load_from_file("input.kdl")) | |
| 642 | { | ||
| 643 | ✗ | return -1; | |
| 644 | } | ||
| 645 | |||
| 646 | ✗ | eu::runner::Script script; | |
| 647 | ✗ | if (false == script.run_file("main.lax")) | |
| 648 | { | ||
| 649 | ✗ | return -1; | |
| 650 | } | ||
| 651 | |||
| 652 | ✗ | eu::render::World render_world; | |
| 653 | ✗ | eu::render::EffectStack effects; | |
| 654 | |||
| 655 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 656 | ✗ | imgui::ImguiShaderCache imgui_shader_cache; | |
| 657 | #endif | ||
| 658 | |||
| 659 | // add demo world | ||
| 660 | { | ||
| 661 | ✗ | constexpr auto PLANE_SIZE = 100.0f; | |
| 662 | auto plane_geom = eu::render::compile_geom( | ||
| 663 | ✗ | USE_DEBUG_LABEL_MANY("plane") | |
| 664 | ✗ | eu::core::geom::create_xz_plane(PLANE_SIZE, PLANE_SIZE, false).to_geom(), | |
| 665 | ✗ | renderer.default_geom_layout() | |
| 666 | ✗ | ); | |
| 667 | |||
| 668 | ✗ | auto material = renderer.make_default_material(); | |
| 669 | ✗ | material->diffuse = load_texture("sprites/smoke.png", eu::render::ColorData::dont_care); | |
| 670 | ✗ | material->specular = assets.white; | |
| 671 | |||
| 672 | ✗ | auto plane = make_mesh_instance(plane_geom, material); | |
| 673 | ✗ | render_world.meshes.emplace_back(plane); | |
| 674 | ✗ | plane->transform = eu::m4::from_translation({ 0.0f, -3.0f, 0.0f }); | |
| 675 | |||
| 676 | ✗ | render_world.lights.point_lights.emplace_back(); | |
| 677 | ✗ | } | |
| 678 | |||
| 679 | // add demo mesh | ||
| 680 | ✗ | eu::runner::World runner_world; | |
| 681 | ✗ | std::unordered_map<std::string, std::unique_ptr<render::CompiledMesh>> meshes; | |
| 682 | ✗ | std::unordered_map<std::string, std::shared_ptr<eu::render::Texture2d>> textures; | |
| 683 | |||
| 684 | ✗ | const auto load_mesh = [&](const std::string& f) -> render::CompiledMesh* | |
| 685 | { | ||
| 686 | ✗ | const auto found = meshes.find(f); | |
| 687 | ✗ | if (found != meshes.end()) | |
| 688 | { | ||
| 689 | ✗ | return found->second.get(); | |
| 690 | } | ||
| 691 | ✗ | const auto mesh = eu::io::mesh_from_file(f); | |
| 692 | ✗ | const auto compiled = eu::render::compile_mesh(USE_DEBUG_LABEL_MANY(f) mesh, renderer.default_geom_layout()); | |
| 693 | ✗ | auto data = std::make_unique<render::CompiledMesh>(compiled); | |
| 694 | ✗ | auto* ret = data.get(); | |
| 695 | ✗ | meshes.insert_or_assign(f, std::move(data)); | |
| 696 | ✗ | return ret; | |
| 697 | ✗ | }; | |
| 698 | |||
| 699 | ✗ | const auto load_color_texture = [&](const std::string& f) -> std::shared_ptr<render::Texture2d> | |
| 700 | { | ||
| 701 | ✗ | const auto found = textures.find(f); | |
| 702 | ✗ | if (found != textures.end()) | |
| 703 | { | ||
| 704 | ✗ | return found->second; | |
| 705 | } | ||
| 706 | ✗ | const auto loaded = load_texture(f, eu::render::ColorData::color_data); | |
| 707 | ✗ | textures.insert_or_assign(f, loaded); | |
| 708 | ✗ | return loaded; | |
| 709 | ✗ | }; | |
| 710 | |||
| 711 | ✗ | runner_world.add_system(std::make_unique<UpdateCameraTarget>()); | |
| 712 | |||
| 713 | CameraFetcherSystem* camera_fetcher; | ||
| 714 | { | ||
| 715 | ✗ | auto fetch = std::make_unique<CameraFetcherSystem>(); | |
| 716 | ✗ | camera_fetcher = fetch.get(); | |
| 717 | ✗ | runner_world.add_system(std::move(fetch)); | |
| 718 | ✗ | } | |
| 719 | |||
| 720 | { | ||
| 721 | ✗ | auto* car = runner_world.add_entity("car", { tag::CameraSpatialSource }); | |
| 722 | |||
| 723 | // mesh component | ||
| 724 | // debug/axis.glb | ||
| 725 | // "models/vehicle-truck-purple.glb" | ||
| 726 | // "models/textures/colormap.png" | ||
| 727 | // render::CompiledMesh* mesh, render::World* render_world, std::shared_ptr<render::Material> material | ||
| 728 | ✗ | auto* mesh = load_mesh("models/vehicle-truck-purple.glb"); | |
| 729 | ✗ | auto material = renderer.make_default_material(); | |
| 730 | ✗ | material->diffuse = load_color_texture("models/textures/colormap.png"); | |
| 731 | ✗ | material->specular = assets.white; | |
| 732 | ✗ | auto comp = std::make_unique<MeshSpatialComponent>(mesh, &render_world, material); | |
| 733 | ✗ | car->set_root(comp.get()); | |
| 734 | ✗ | car->add_component(std::move(comp)); | |
| 735 | |||
| 736 | // input component | ||
| 737 | ✗ | car->add_system(std::make_unique<InputSystem>(&input)); | |
| 738 | ✗ | } | |
| 739 | { | ||
| 740 | ✗ | auto* cam = runner_world.add_entity("camera", { tag::CameraDestination }); | |
| 741 | |||
| 742 | ✗ | cam->add_component(std::make_unique<TargetComponent>()); | |
| 743 | ✗ | auto spat = std::make_unique<CameraSpatialComponent>(); | |
| 744 | ✗ | cam->set_root(spat.get()); | |
| 745 | ✗ | cam->add_component(std::move(spat)); | |
| 746 | ✗ | cam->add_system(std::make_unique<FollowCameraSystem>()); | |
| 747 | ✗ | } | |
| 748 | { | ||
| 749 | ✗ | Level level; | |
| 750 | ✗ | auto material = renderer.make_default_material(); | |
| 751 | ✗ | material->diffuse = load_color_texture("models/textures/colormap.png"); | |
| 752 | ✗ | material->specular = assets.white; | |
| 753 | ✗ | level.load("level.kdl", &render_world, material, renderer.default_geom_layout()); | |
| 754 | ✗ | } | |
| 755 | |||
| 756 | ✗ | LOG_INFO("Runner started"); | |
| 757 | ✗ | bool running = true; | |
| 758 | ✗ | Time time; | |
| 759 | ✗ | while (running) | |
| 760 | { | ||
| 761 | ✗ | const auto dt = time.calculate(); | |
| 762 | |||
| 763 | ✗ | runner_world.update(runner::UpdateStage::start_frame, dt); | |
| 764 | |||
| 765 | SDL_Event e; | ||
| 766 | ✗ | input.update(); | |
| 767 | ✗ | while (SDL_PollEvent(&e) != 0) | |
| 768 | { | ||
| 769 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 770 | ✗ | ImGui_ImplSDL3_ProcessEvent(&e); | |
| 771 | #endif | ||
| 772 | |||
| 773 | ✗ | switch (e.type) | |
| 774 | { | ||
| 775 | ✗ | case SDL_EVENT_KEY_DOWN: | |
| 776 | case SDL_EVENT_KEY_UP: | ||
| 777 | ✗ | input.on_key(e.key.key, e.type == SDL_EVENT_KEY_DOWN); | |
| 778 | ✗ | break; | |
| 779 | ✗ | case SDL_EVENT_WINDOW_RESIZED: | |
| 780 | ✗ | LOG_INFO("Resized"); | |
| 781 | ✗ | SDL_GetWindowSize(window, &window_width, &window_height); | |
| 782 | ✗ | break; | |
| 783 | ✗ | case SDL_EVENT_QUIT: running = false; break; | |
| 784 | ✗ | default: | |
| 785 | // ignore other events | ||
| 786 | ✗ | break; | |
| 787 | } | ||
| 788 | } | ||
| 789 | |||
| 790 | // todo(Gustav): lookup unity frame, when updates are called and update stages | ||
| 791 | ✗ | runner_world.update(runner::UpdateStage::before_physics, dt); | |
| 792 | ✗ | runner_world.update(runner::UpdateStage::physics, dt); | |
| 793 | ✗ | runner_world.update(runner::UpdateStage::after_physics, dt); | |
| 794 | |||
| 795 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 796 | ✗ | ImGui_ImplOpenGL3_NewFrame(); | |
| 797 | ✗ | ImGui_ImplSDL3_NewFrame(); | |
| 798 | ✗ | ImGui::NewFrame(); | |
| 799 | |||
| 800 | ✗ | if (show_demo_window) | |
| 801 | { | ||
| 802 | ✗ | ImGui::ShowDemoWindow(&show_demo_window); | |
| 803 | } | ||
| 804 | |||
| 805 | ✗ | if (ImGui::Begin("Renderer")) | |
| 806 | { | ||
| 807 | ✗ | imgui_color("Clear color", &render_world.clear_color); | |
| 808 | ✗ | eu::imgui::simple_gamma_slider("Gamma/Brightness", &renderer.settings.gamma, -1.0f); | |
| 809 | ✗ | ImGui::Checkbox("Use bloom", &renderer.settings.use_bloom); | |
| 810 | ✗ | ImGui::DragFloat("Bloom cutoff", &renderer.settings.bloom_cutoff, 0.001f); | |
| 811 | ✗ | ImGui::SliderFloat("Softness", &renderer.settings.bloom_softness, 0.0f, 1.0f); | |
| 812 | ✗ | ImGui::DragInt("Bloom blur steps", &renderer.settings.bloom_blur_steps); | |
| 813 | ✗ | effects.gui(&imgui_shader_cache); | |
| 814 | } | ||
| 815 | ✗ | ImGui::End(); | |
| 816 | |||
| 817 | // todo(Gustav): add introspection ui | ||
| 818 | ✗ | if (ImGui::Begin("Demo")) | |
| 819 | { | ||
| 820 | ✗ | runner_world.gui(); | |
| 821 | // imgui::drag("Position", &position); | ||
| 822 | // imgui::drag("Rotation", &rotation); | ||
| 823 | } | ||
| 824 | ✗ | ImGui::End(); | |
| 825 | #endif | ||
| 826 | |||
| 827 | ✗ | eu::render::RenderCommand cmd{ .states = &states, .render = &render, .size = {.width = window_width, .height = window_height} }; | |
| 828 | |||
| 829 | // clear | ||
| 830 | { | ||
| 831 | { | ||
| 832 | ✗ | const auto screen = eu::render::LayoutData{ .style = eu::render::ViewportStyle::extended, | |
| 833 | .requested_width = 800, .requested_height = 600 }; | ||
| 834 | ✗ | cmd.clear(eu::colors::black, screen); | |
| 835 | } | ||
| 836 | } | ||
| 837 | |||
| 838 | // render 3d world | ||
| 839 | { | ||
| 840 | ✗ | const auto screen = eu::render::LayoutData{ .style = eu::render::ViewportStyle::black_bars, | |
| 841 | .requested_width = 800, .requested_height = 600 }; | ||
| 842 | ✗ | cmd.clear(eu::colors::blue_sky, screen); | |
| 843 | ✗ | auto layer = eu::render::with_layer3(cmd, screen); | |
| 844 | // todo(Gustav): get transform from camera entity | ||
| 845 | ✗ | effects.update(dt); | |
| 846 | ✗ | eu::render::Camera camera = camera_fetcher->fetch(); | |
| 847 | ✗ | effects.render(eu::render::PostProcArg{ | |
| 848 | .world = &render_world, | ||
| 849 | ✗ | .window_size = size_from_v2(layer.screen.get_size()), | |
| 850 | .final_rect = layer.screen, | ||
| 851 | .camera = &camera, | ||
| 852 | .renderer = &renderer | ||
| 853 | }); | ||
| 854 | } | ||
| 855 | |||
| 856 | // render hud | ||
| 857 | { | ||
| 858 | ✗ | const auto screen = eu::render::LayoutData{ .style = eu::render::ViewportStyle::black_bars, | |
| 859 | .requested_width = 1280, .requested_height = 720 }; | ||
| 860 | |||
| 861 | ✗ | auto layer = eu::render::with_layer2(cmd, screen); | |
| 862 | ✗ | const float hud_size = 100.0f; | |
| 863 | ✗ | eu::render::Quad{ .tint = eu::colors::blue_sky }.draw(layer.batch, layer.viewport_aabb_in_worldspace.get_bottom(hud_size).get_right(hud_size).with_inset(eu::Lrtb{ 5.0f })); | |
| 864 | ✗ | } | |
| 865 | |||
| 866 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 867 | ✗ | ImGui::Render(); | |
| 868 | ✗ | ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); | |
| 869 | #endif | ||
| 870 | ✗ | SDL_GL_SwapWindow(window); | |
| 871 | |||
| 872 | ✗ | runner_world.update(runner::UpdateStage::end_frame, dt); | |
| 873 | } | ||
| 874 | |||
| 875 | #if FF_HAS(EU_DEBUG_RUNNER) | ||
| 876 | ✗ | ImGui_ImplOpenGL3_Shutdown(); | |
| 877 | ✗ | ImGui_ImplSDL3_Shutdown(); | |
| 878 | ✗ | ImGui::DestroyContext(); | |
| 879 | #endif | ||
| 880 | |||
| 881 | ✗ | LOG_INFO("Shutting down"); | |
| 882 | ✗ | SDL_GL_DestroyContext(glContext); | |
| 883 | ✗ | SDL_DestroyWindow(window); | |
| 884 | ✗ | SDL_Quit(); | |
| 885 | |||
| 886 | ✗ | return 0; | |
| 887 | ✗ | } | |
| 888 |