diff options
author | Loek Le Blansch <loek@pipeframe.xyz> | 2024-11-20 20:25:24 +0100 |
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committer | Loek Le Blansch <loek@pipeframe.xyz> | 2024-11-20 20:25:24 +0100 |
commit | f7a1ca3b7d934043b48602601e789bad27940405 (patch) | |
tree | 4622fd0f4f85b5856306d15b129ac1c3e64b567a /src/crepe/facade/SDLContext.cpp | |
parent | e2c27d8c99a71e5d94ffe49027ec13afeb74b021 (diff) | |
parent | b6aea9de9c9c8d86856bcd6c3b521e385bc00a69 (diff) |
merge `master` into `loek/util`
Diffstat (limited to 'src/crepe/facade/SDLContext.cpp')
-rw-r--r-- | src/crepe/facade/SDLContext.cpp | 87 |
1 files changed, 51 insertions, 36 deletions
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp index f2daada..d352ea6 100644 --- a/src/crepe/facade/SDLContext.cpp +++ b/src/crepe/facade/SDLContext.cpp @@ -1,5 +1,6 @@ #include <SDL2/SDL.h> #include <SDL2/SDL_image.h> +#include <SDL2/SDL_keycode.h> #include <SDL2/SDL_rect.h> #include <SDL2/SDL_render.h> #include <SDL2/SDL_surface.h> @@ -7,13 +8,15 @@ #include <cmath> #include <cstddef> #include <functional> -#include <iostream> #include <memory> +#include <stdexcept> #include <string> +#include "../api/Camera.h" #include "../api/Sprite.h" #include "../api/Texture.h" #include "../api/Transform.h" +#include "../api/Vector2.h" #include "../util/Log.h" #include "SDLContext.h" @@ -30,29 +33,21 @@ SDLContext::SDLContext() { dbg_trace(); // FIXME: read window defaults from config manager - if (SDL_Init(SDL_INIT_VIDEO) < 0) { - // FIXME: throw exception - std::cerr << "SDL could not initialize! SDL_Error: " << SDL_GetError() << std::endl; - return; + if (SDL_Init(SDL_INIT_VIDEO) != 0) { + throw runtime_error(format("SDLContext: SDL_Init error: {}", SDL_GetError())); } SDL_Window * tmp_window = SDL_CreateWindow("Crepe Game Engine", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, this->viewport.w, this->viewport.h, 0); if (!tmp_window) { - // FIXME: throw exception - std::cerr << "Window could not be created! SDL_Error: " << SDL_GetError() << std::endl; - return; + throw runtime_error(format("SDLContext: SDL_Window error: {}", SDL_GetError())); } this->game_window = {tmp_window, [](SDL_Window * window) { SDL_DestroyWindow(window); }}; SDL_Renderer * tmp_renderer = SDL_CreateRenderer(this->game_window.get(), -1, SDL_RENDERER_ACCELERATED); if (!tmp_renderer) { - // FIXME: throw exception - std::cerr << "Renderer could not be created! SDL_Error: " << SDL_GetError() - << std::endl; - SDL_DestroyWindow(this->game_window.get()); - return; + throw runtime_error(format("SDLContext: SDL_CreateRenderer error: {}", SDL_GetError())); } this->game_renderer @@ -60,9 +55,7 @@ SDLContext::SDLContext() { int img_flags = IMG_INIT_PNG; if (!(IMG_Init(img_flags) & img_flags)) { - // FIXME: throw exception - std::cout << "SDL_image could not initialize! SDL_image Error: " << IMG_GetError() - << std::endl; + throw runtime_error("SDLContext: SDL_image could not initialize!"); } } @@ -103,40 +96,63 @@ void SDLContext::handle_events(bool & running) { void SDLContext::clear_screen() { SDL_RenderClear(this->game_renderer.get()); } void SDLContext::present_screen() { SDL_RenderPresent(this->game_renderer.get()); } -void SDLContext::draw(const Sprite & sprite, const Transform & transform, const Camera & cam) { - - SDL_RendererFlip render_flip - = (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x) - | (SDL_FLIP_VERTICAL * sprite.flip.flip_y)); - - double adjusted_x = (transform.position.x - cam.x) * cam.zoom; - double adjusted_y = (transform.position.y - cam.y) * cam.zoom; - double adjusted_w = sprite.sprite_rect.w * transform.scale * cam.zoom; - double adjusted_h = sprite.sprite_rect.h * transform.scale * cam.zoom; - - SDL_Rect srcrect = { +SDL_Rect SDLContext::get_src_rect(const Sprite & sprite) const { + return SDL_Rect{ .x = sprite.sprite_rect.x, .y = sprite.sprite_rect.y, .w = sprite.sprite_rect.w, .h = sprite.sprite_rect.h, }; +} +SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const Vector2 & pos, + const double & scale, const Camera & cam) const { + + double adjusted_x = (pos.x - cam.x) * cam.zoom; + double adjusted_y = (pos.y - cam.y) * cam.zoom; + double adjusted_w = sprite.sprite_rect.w * scale * cam.zoom; + double adjusted_h = sprite.sprite_rect.h * scale * cam.zoom; - SDL_Rect dstrect = { + return SDL_Rect{ .x = static_cast<int>(adjusted_x), .y = static_cast<int>(adjusted_y), .w = static_cast<int>(adjusted_w), .h = static_cast<int>(adjusted_h), }; +} + +void SDLContext::draw_particle(const Sprite & sprite, const Vector2 & pos, + const double & angle, const double & scale, + const Camera & camera) { + + SDL_RendererFlip render_flip + = (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x) + | (SDL_FLIP_VERTICAL * sprite.flip.flip_y)); + + SDL_Rect srcrect = this->get_src_rect(sprite); + SDL_Rect dstrect = this->get_dst_rect(sprite, pos, scale, camera); + + SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect, + &dstrect, angle, NULL, render_flip); +} + +void SDLContext::draw(const Sprite & sprite, const Transform & transform, const Camera & cam) { + + SDL_RendererFlip render_flip + = (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x) + | (SDL_FLIP_VERTICAL * sprite.flip.flip_y)); + + SDL_Rect srcrect = this->get_src_rect(sprite); + SDL_Rect dstrect = this->get_dst_rect(sprite, transform.position, transform.scale, cam); SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect, &dstrect, transform.rotation, NULL, render_flip); } -void SDLContext::camera(const Camera & cam) { +void SDLContext::set_camera(const Camera & cam) { this->viewport.w = static_cast<int>(cam.aspect_width); this->viewport.h = static_cast<int>(cam.aspect_height); - this->viewport.x = static_cast<int>(cam.x) - (SCREEN_WIDTH / 2); - this->viewport.y = static_cast<int>(cam.y) - (SCREEN_HEIGHT / 2); + this->viewport.x = static_cast<int>(cam.x) - (this->viewport.w / 2); + this->viewport.y = static_cast<int>(cam.y) - (this->viewport.h / 2); SDL_SetRenderDrawColor(this->game_renderer.get(), cam.bg_color.r, cam.bg_color.g, cam.bg_color.b, cam.bg_color.a); @@ -148,9 +164,8 @@ std::unique_ptr<SDL_Texture, std::function<void(SDL_Texture *)>> SDLContext::texture_from_path(const std::string & path) { SDL_Surface * tmp = IMG_Load(path.c_str()); - if (tmp == nullptr) { - tmp = IMG_Load("asset/texture/ERROR.png"); - } + if (tmp == nullptr) + throw runtime_error(format("SDLContext: IMG_Load error: {}", SDL_GetError())); std::unique_ptr<SDL_Surface, std::function<void(SDL_Surface *)>> img_surface; img_surface = {tmp, [](SDL_Surface * surface) { SDL_FreeSurface(surface); }}; @@ -159,7 +174,7 @@ SDLContext::texture_from_path(const std::string & path) { = SDL_CreateTextureFromSurface(this->game_renderer.get(), img_surface.get()); if (tmp_texture == nullptr) { - throw runtime_error(format("Texture cannot be load from {}", path)); + throw runtime_error(format("SDLContext: Texture cannot be load from {}", path)); } std::unique_ptr<SDL_Texture, std::function<void(SDL_Texture *)>> img_texture; |