diff options
author | Loek Le Blansch <loek@pipeframe.xyz> | 2024-11-29 12:21:26 +0100 |
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committer | Loek Le Blansch <loek@pipeframe.xyz> | 2024-11-29 12:21:26 +0100 |
commit | c2ef6a36532c8c078fd7836325d6be277b946cbf (patch) | |
tree | bcac24106220ad626aca5dfcd3576e7d60ac3af2 /src/crepe/facade/SDLContext.cpp | |
parent | 74bffd3e466c342ca80811146a536716fb6437cb (diff) | |
parent | 7a07c56d572a6f30d0aa611bd566197bc04c3b33 (diff) |
merge `loek/scripts`
Diffstat (limited to 'src/crepe/facade/SDLContext.cpp')
-rw-r--r-- | src/crepe/facade/SDLContext.cpp | 116 |
1 files changed, 72 insertions, 44 deletions
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp index b3298a7..9f60285 100644 --- a/src/crepe/facade/SDLContext.cpp +++ b/src/crepe/facade/SDLContext.cpp @@ -10,16 +10,15 @@ #include <functional> #include <memory> #include <stdexcept> -#include <string> #include "../api/Camera.h" +#include "../api/Config.h" #include "../api/Sprite.h" #include "../api/Texture.h" -#include "../api/Transform.h" -#include "../api/Vector2.h" #include "../util/Log.h" #include "SDLContext.h" +#include "types.h" using namespace crepe; using namespace std; @@ -31,14 +30,15 @@ SDLContext & SDLContext::get_instance() { SDLContext::SDLContext() { dbg_trace(); - // FIXME: read window defaults from config manager if (SDL_Init(SDL_INIT_VIDEO) != 0) { throw runtime_error(format("SDLContext: SDL_Init error: {}", SDL_GetError())); } + + auto & cfg = Config::get_instance().window_settings; SDL_Window * tmp_window - = SDL_CreateWindow("Crepe Game Engine", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, - this->viewport.w, this->viewport.h, 0); + = SDL_CreateWindow(cfg.window_title.c_str(), SDL_WINDOWPOS_CENTERED, + SDL_WINDOWPOS_CENTERED, cfg.default_size.x, cfg.default_size.y, 0); if (!tmp_window) { throw runtime_error(format("SDLContext: SDL_Window error: {}", SDL_GetError())); } @@ -93,68 +93,96 @@ void SDLContext::handle_events(bool & running) { */ } -void SDLContext::clear_screen() { SDL_RenderClear(this->game_renderer.get()); } +void SDLContext::clear_screen() { + SDL_SetRenderDrawColor(this->game_renderer.get(), 0, 0, 0, 255); + SDL_RenderClear(this->game_renderer.get()); +} void SDLContext::present_screen() { SDL_RenderPresent(this->game_renderer.get()); } 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, + .x = sprite.mask.x, + .y = sprite.mask.y, + .w = sprite.mask.w, + .h = sprite.mask.h, }; } -SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const vec2 & pos, - const double & scale, const Camera & cam) const { +SDL_Rect SDLContext::get_dst_rect(const Sprite & sprite, const vec2 & pos, const Camera & cam, + const vec2 & cam_pos, const double & img_scale) const { + + int width = sprite.height * sprite.aspect_ratio; + int height = sprite.height; - double adjusted_w = sprite.sprite_rect.w * scale * cam.zoom; - double adjusted_h = sprite.sprite_rect.h * scale * cam.zoom; - double adjusted_x = (pos.x - cam.x) * cam.zoom - adjusted_w / 2; - double adjusted_y = (pos.y - cam.y) * cam.zoom - adjusted_h / 2; + width *= img_scale * cam.zoom; + height *= img_scale * cam.zoom; 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), + .x = static_cast<int>((pos.x - cam_pos.x + (cam.viewport_size.x / 2) - width / 2)), + .y = static_cast<int>((pos.y - cam_pos.y + (cam.viewport_size.y / 2) - height / 2)), + .w = width, + .h = height, }; } -void SDLContext::draw_particle(const Sprite & sprite, const vec2 & pos, const double & angle, - const double & scale, const Camera & camera) { +void SDLContext::draw(const RenderContext & ctx) { SDL_RendererFlip render_flip - = (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x) - | (SDL_FLIP_VERTICAL * sprite.flip.flip_y)); + = (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * ctx.sprite.flip.flip_x) + | (SDL_FLIP_VERTICAL * ctx.sprite.flip.flip_y)); - SDL_Rect srcrect = this->get_src_rect(sprite); - SDL_Rect dstrect = this->get_dst_rect(sprite, pos, scale, camera); + SDL_Rect srcrect = this->get_src_rect(ctx.sprite); + SDL_Rect dstrect + = this->get_dst_rect(ctx.sprite, ctx.pos, ctx.cam, ctx.cam_pos, ctx.scale); - SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect, - &dstrect, angle, NULL, render_flip); + SDL_RenderCopyEx(this->game_renderer.get(), ctx.sprite.sprite_image.texture.get(), + &srcrect, &dstrect, ctx.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)); +void SDLContext::set_camera(const Camera & cam) { - SDL_Rect srcrect = this->get_src_rect(sprite); - SDL_Rect dstrect = this->get_dst_rect(sprite, transform.position, transform.scale, cam); + // resize window + int w, h; + SDL_GetWindowSize(this->game_window.get(), &w, &h); + if (w != cam.screen.x || h != cam.screen.y) { + SDL_SetWindowSize(this->game_window.get(), cam.screen.x, cam.screen.y); + } - SDL_RenderCopyEx(this->game_renderer.get(), sprite.sprite_image->texture.get(), &srcrect, - &dstrect, transform.rotation, NULL, render_flip); -} + double screen_aspect = cam.screen.x / cam.screen.y; + double viewport_aspect = cam.viewport_size.x / cam.viewport_size.y; + + SDL_Rect view; + // calculate black bars + if (screen_aspect > viewport_aspect) { + // letterboxing + view.h = cam.screen.y / cam.zoom; + view.w = cam.screen.y * viewport_aspect; + view.x = (cam.screen.x - view.w) / 2; + view.y = 0; + } else { + // pillarboxing + view.h = cam.screen.x / viewport_aspect; + view.w = cam.screen.x / cam.zoom; + view.x = 0; + view.y = (cam.screen.y - view.h) / 2; + } + // set drawing area + SDL_RenderSetViewport(this->game_renderer.get(), &view); -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) - (this->viewport.w / 2); - this->viewport.y = static_cast<int>(cam.y) - (this->viewport.h / 2); + SDL_RenderSetLogicalSize(this->game_renderer.get(), static_cast<int>(cam.viewport_size.x), + static_cast<int>(cam.viewport_size.y)); + // set bg color SDL_SetRenderDrawColor(this->game_renderer.get(), cam.bg_color.r, cam.bg_color.g, cam.bg_color.b, cam.bg_color.a); + + SDL_Rect bg = { + .x = 0, + .y = 0, + .w = static_cast<int>(cam.viewport_size.x), + .h = static_cast<int>(cam.viewport_size.y), + }; + // fill bg color + SDL_RenderFillRect(this->game_renderer.get(), &bg); } uint64_t SDLContext::get_ticks() const { return SDL_GetTicks64(); } |