Start of textscreen

src/TextScreen.h

@@ -0,0 +1,114 @@
+//
+// Created by love on 2024-01-24.
+//
+
+#pragma once
+
+#include <SDL_render.h>
+#include <SDL_ttf.h>
+#include "defaultfont.h"
+#include "iostream"
+
+class TextScreen {
+private:
+    std::string *text;
+    TTF_Font *font;
+    bool hasUpdated;
+
+    // Regular
+    SDL_Rect position;
+    SDL_Color color = {243, 156, 18, 255};
+    SDL_Surface *surface = nullptr;
+
+    // Shadow
+    const SDL_Color shadowColor = {243, 156, 18, 100};
+    SDL_Surface *shadowSurface = nullptr;
+    const int shadowOffset = 3;
+
+public:
+    /**
+     *
+     * @param text This class takes care of freeing text
+     * @param screenSize This won't be freed by this class
+     */
+    TextScreen(std::string *text, SDL_Point *screenSize) : text(text), hasUpdated(false) {
+        if (defaultFontPath == nullptr) {
+            std::cerr << "Font path is not set for this platform (null)" << std::endl;
+            exit(-1);
+        }
+        this->font = TTF_OpenFont(defaultFontPath, 42);
+        if (font == nullptr) {
+            std::cerr << "Failed to load font: " << TTF_GetError() << std::endl;
+            exit(-1);
+        }
+        this->position = SDL_Rect{50, 50, screenSize->x - 50, screenSize->y - 50};
+    }
+
+    ~TextScreen() {
+        if (font)
+            TTF_CloseFont(font);
+        SDL_FreeSurface(surface);
+        delete text;
+    }
+
+
+    void draw(SDL_Renderer *renderer) {
+        // Draw shadow
+        if (shadowSurface != nullptr) {
+            SDL_Texture *shadowTexture = SDL_CreateTextureFromSurface(renderer, shadowSurface);
+            if (shadowTexture != nullptr) {
+                SDL_Rect shadowPosition = {position.x + shadowOffset, position.y + shadowOffset, position.w,
+                                           position.h};
+                SDL_RenderCopy(renderer, shadowTexture, nullptr, &shadowPosition);
+                SDL_DestroyTexture(shadowTexture);
+            }
+        }
+
+        // Draw text
+        if (surface != nullptr) {
+            SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);
+            if (texture != nullptr) {
+                SDL_RenderCopy(renderer, texture, nullptr, &position);
+                SDL_DestroyTexture(texture);
+            }
+        }
+    }
+
+    void setText(std::string *replaceText) {
+        delete this->text;
+        this->text = replaceText;
+    }
+
+    void replaceCharAtIndex(char c, int index) {
+        if (text->length() <= index) {
+            std::cerr << "text string is at length " << text->length() << ", but index is " << index << std::endl;
+            return;
+        }
+        hasUpdated = false;
+        text[index] = c;
+    }
+
+    void update() {
+        if (!hasUpdated)
+            return;
+
+        SDL_FreeSurface(surface);
+        SDL_FreeSurface(shadowSurface);
+
+        shadowSurface = TTF_RenderText_Solid(font, text->c_str(), shadowColor);
+        if (shadowSurface == nullptr)
+            std::cerr << "Failed to create shadow text surface (TextScreen): " << TTF_GetError() << std::endl;
+
+        surface = TTF_RenderText_Solid(font, text->c_str(), color);
+        if (surface == nullptr)
+            std::cerr << "Failed to create text surface (TextScreen): " << TTF_GetError() << std::endl;
+
+        hasUpdated = true;
+
+    }
+
+    bool gameContextFinished() {
+
+    }
+
+};