From 045c263f5bc432ff0758dd0928e4a0f5e5eed85d Mon Sep 17 00:00:00 2001 From: heavydemon21 Date: Wed, 11 Dec 2024 15:46:17 +0100 Subject: updated the code so that get_events() calculates pixel units to game units --- src/crepe/facade/SDLContext.cpp | 43 ++++++++++------------------------------- src/crepe/facade/SDLContext.h | 27 +++++++++++++------------- 2 files changed, 24 insertions(+), 46 deletions(-) (limited to 'src/crepe/facade') diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp index 297763d..8597f06 100644 --- a/src/crepe/facade/SDLContext.cpp +++ b/src/crepe/facade/SDLContext.cpp @@ -1,6 +1,5 @@ #include #include -#include #include #include #include @@ -64,10 +63,6 @@ SDLContext::SDLContext() { if (!(IMG_Init(img_flags) & img_flags)) { throw runtime_error("SDLContext: SDL_image could not initialize!"); } - - if (TTF_Init() != 0) { - throw runtime_error("SDLContext: TTF could not initialize!"); - } } SDLContext::~SDLContext() { @@ -79,7 +74,6 @@ SDLContext::~SDLContext() { // TODO: how are we going to ensure that these are called from the same // thread that SDL_Init() was called on? This has caused problems for me // before. - TTF_Quit(); IMG_Quit(); SDL_Quit(); } @@ -249,14 +243,12 @@ SDL_FRect SDLContext::get_dst_rect(const DestinationRectangleData & ctx) const { size.y = data.size.x / ctx.sprite.aspect_ratio; } - const CameraValues & cam = ctx.cam; - - size *= cam.render_scale * ctx.img_scale * data.scale_offset; + size *= cam_aux_data.render_scale * ctx.img_scale * data.scale_offset; vec2 screen_pos - = (ctx.pos + data.position_offset - cam.cam_pos + (cam.zoomed_viewport) / 2) - * cam.render_scale - - size / 2 + cam.bar_size; + = (ctx.pos + data.position_offset - cam_aux_data.cam_pos + (cam_aux_data.zoomed_viewport) / 2) + * cam_aux_data.render_scale + - size / 2 + cam_aux_data.bar_size; return SDL_FRect{ .x = screen_pos.x, @@ -276,7 +268,6 @@ void SDLContext::draw(const RenderContext & ctx) { SDL_Rect srcrect = this->get_src_rect(ctx.sprite); SDL_FRect dstrect = this->get_dst_rect(SDLContext::DestinationRectangleData{ .sprite = ctx.sprite, - .cam = ctx.cam, .pos = ctx.pos, .img_scale = ctx.scale, }); @@ -288,7 +279,7 @@ void SDLContext::draw(const RenderContext & ctx) { &dstrect, angle, NULL, render_flip); } -SDLContext::CameraValues & SDLContext::set_camera(const Camera & cam) { +void SDLContext::update_camera_view(const Camera & cam, const vec2 & new_pos) { const Camera::Data & cam_data = cam.data; // resize window @@ -298,9 +289,10 @@ SDLContext::CameraValues & SDLContext::set_camera(const Camera & cam) { SDL_SetWindowSize(this->game_window.get(), cam.screen.x, cam.screen.y); } - vec2 & zoomed_viewport = this->camera_val.zoomed_viewport; - vec2 & bar_size = this->camera_val.bar_size; - vec2 & render_scale = this->camera_val.render_scale; + vec2 & zoomed_viewport = this->cam_aux_data.zoomed_viewport; + vec2 & bar_size = this->cam_aux_data.bar_size; + vec2 & render_scale = this->cam_aux_data.render_scale; + this->cam_aux_data.cam_pos = new_pos; zoomed_viewport = cam.viewport_size * cam_data.zoom; float screen_aspect = static_cast(cam.screen.x) / cam.screen.y; @@ -342,8 +334,6 @@ SDLContext::CameraValues & SDLContext::set_camera(const Camera & cam) { // fill bg color SDL_RenderFillRect(this->game_renderer.get(), &bg); - - return this->camera_val; } uint64_t SDLContext::get_ticks() const { return SDL_GetTicks64(); } @@ -372,19 +362,6 @@ SDLContext::texture_from_path(const std::string & path) { return img_texture; } -std::unique_ptr> -SDLContext::font_from_path(const std::string & path) { - - TTF_Font * lib_font = TTF_OpenFont(path.c_str(), 72); - if (!lib_font) { - throw runtime_error(format("SDLContext: font cannot be load from {}", path)); - } - std::unique_ptr> font; - font = {lib_font, [](TTF_Font * f){}}; - - return font; -} - ivec2 SDLContext::get_size(const Texture & ctx) { ivec2 size; SDL_QueryTexture(ctx.texture.get(), NULL, NULL, &size.x, &size.y); @@ -396,7 +373,7 @@ void SDLContext::delay(int ms) const { SDL_Delay(ms); } std::vector SDLContext::get_events() { std::vector event_list; SDL_Event event; - const CameraValues & cam = this->camera_val; + const CameraAuxiliaryData & cam = this->cam_aux_data; while (SDL_PollEvent(&event)) { ivec2 mouse_pos; mouse_pos.x = (event.button.x - cam.bar_size.x) / cam.render_scale.x; diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h index b847c72..6d50ab0 100644 --- a/src/crepe/facade/SDLContext.h +++ b/src/crepe/facade/SDLContext.h @@ -4,7 +4,6 @@ #include #include #include -#include #include #include #include @@ -33,7 +32,7 @@ class InputSystem; class SDLContext { public: //! data that the camera component cannot hold - struct CameraValues { + struct CameraAuxiliaryData { //! zoomed in viewport in game_units vec2 zoomed_viewport; @@ -63,7 +62,6 @@ public: //! rendering data needed to render on screen struct RenderContext { const Sprite & sprite; - const CameraValues & cam; const vec2 & pos; const double & angle; const double & scale; @@ -189,9 +187,6 @@ private: */ ivec2 get_size(const Texture & ctx); - std::unique_ptr> - font_from_path(const std::string & path); - private: //! Will use draw,clear_screen, present_screen, camera. friend class RenderSystem; @@ -202,8 +197,6 @@ private: */ void draw(const RenderContext & ctx); - void draw_text(const - //! Clears the screen, preparing for a new frame. void clear_screen(); @@ -211,16 +204,19 @@ private: void present_screen(); /** - * \brief sets the background of the camera (will be adjusted in future PR) - * \param camera Reference to the Camera object. + * \brief calculates camera view settings. such as black_bars, zoomed_viewport, scaling and + * adjusting window size. + * + * \note only supports windowed mode. + * \param camera Reference to the current Camera object in the scene. + * \param new_pos new camera position from transform and offset */ - CameraValues & set_camera(const Camera & camera); + void update_camera_view(const Camera & camera, const vec2 & new_pos); private: //! the data needed to construct a sdl dst rectangle struct DestinationRectangleData { const Sprite & sprite; - const CameraValues & cam; const vec2 & pos; const double & img_scale; }; @@ -261,7 +257,12 @@ private: //! black bars rectangle to draw SDL_FRect black_bars[2] = {}; - CameraValues camera_val; + /** + * \cam_aux_data extra data that the component cannot hold. + * + * - this is defined in this class because get_events() needs this information aswell + */ + CameraAuxiliaryData cam_aux_data; }; } // namespace crepe -- cgit v1.2.3