conco/Roguelike_Algorithm_Visualizer_2pp
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sprites and ttf work

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This commit is contained in:
littlefoot
2021-12-05 22:24:10 -05:00
parent 3ba9364e75
commit 26b341ee63
17 changed files with 244 additions and 57 deletions
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50
src/engine/rendering/sdl/sdlrenderer.cpp
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@@ -11,7 +11,11 @@ void SdlRenderer::initialize(RendererParams params) {
}
auto img_flags = IMG_INIT_PNG;
if(!(IMG_Init(img_flags) & img_flags)) {
printf("Failed to init image loading: %s", IMG_GetError());
printf("Failed to init image loading: %s\n", IMG_GetError());
exit(EXIT_FAILURE);
}
if(TTF_Init() < 0) {
printf("Failed to initialize font loading: %s\n", TTF_GetError());
exit(EXIT_FAILURE);
}
SDL_Window* sdl_window = SDL_CreateWindow(params.title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, params.width, params.height, SDL_WINDOW_SHOWN);
@@ -24,7 +28,9 @@ void SdlRenderer::initialize(RendererParams params) {
SDL_Renderer* sdl_renderer = SDL_CreateRenderer(this->window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
this->renderer = sdl_renderer;
this->texture_manager = std::make_unique<SdlTextureManager>();
this->texture_manager = std::make_unique<SdlTextureManager>(this->renderer);
this->font_manager = std::make_unique<SdlFontManager>();
this->renderer_params = params;
SDL_RenderClear(this->renderer);
}
@@ -32,7 +38,7 @@ void SdlRenderer::initialize(RendererParams params) {
void SdlRenderer::flush() {
SDL_RenderPresent(this->renderer);
SDL_SetRenderDrawColor(this->renderer, 0, 0, 0, 255);
SDL_SetRenderDrawColor(this->renderer, COLOR_BLACK.r, COLOR_BLACK.g, COLOR_BLACK.b, COLOR_BLACK.a);
SDL_RenderClear(this->renderer);
}
@@ -41,8 +47,10 @@ void SdlRenderer::draw_point(int x, int y, Color color) {
SDL_RenderDrawPoint(this->renderer, x, y);
}
void SdlRenderer::draw_text(std::string text, int x, int y) {
void SdlRenderer::draw_text(TextRenderDetails details, std::string text, int x, int y) {
TTF_Font *font = this->font_manager->fetch_resource(SdlFontArgs(details.size, details.font_path));
SDL_Texture *texture = this->texture_manager->load_text_as_texture(text, font, details.color);
render_texture(x, y, texture, nullptr);
}
SdlRenderer::~SdlRenderer() {
@@ -54,5 +62,37 @@ SdlRenderer::~SdlRenderer() {
// exit subsystems
IMG_Quit();
TTF_Quit();
SDL_Quit();
}
void SdlRenderer::render_texture(int x, int y, SDL_Texture *texture, SDL_Rect *src) {
int w, h;
if(src == nullptr) {
SDL_QueryTexture(texture, nullptr, nullptr, &w, &h);
}
else {
w = src->w;
h = src->h;
}
if(x+w >= renderer_params.width) {
x = renderer_params.width - w;
}
if(y+h >= renderer_params.height) {
y = renderer_params.height - h;
}
SDL_Rect rect = {x,y,w,h};
SDL_RenderCopy(this->renderer, texture, src, &rect);
}
void SdlRenderer::draw_sprite(Sprite sprite, int x, int y) {
SpriteSheet *sprite_sheet = sprite.sprite_sheet;
SDL_Texture *texture = this->texture_manager->fetch_resource(sprite_sheet->path);
int w, h;
SDL_QueryTexture(texture, nullptr, nullptr, &w, &h);
int l = (sprite_sheet->sprite_width * sprite.index) / w;
int src_y = l*sprite_sheet->sprite_height;
int src_x = (sprite_sheet->sprite_width * sprite.index) % w;
auto source = SDL_Rect{src_x, src_y, sprite_sheet->sprite_width, sprite_sheet->sprite_height};
render_texture(x, y, texture, &source);
}