Score

CMakeLists.txt

@@ -13,6 +13,13 @@ if (NOT SDL2_GFX_LIBRARY)
     message(FATAL_ERROR "SDL2_gfx not found")
 endif ()
 
+find_library(SDL2_TTF_LIBRARY NAMES SDL2_ttf SDL2_TTF SDL2TTF)
+if (NOT SDL2_TTF_LIBRARY)
+    message(FATAL_ERROR "SDL2_TTF not found")
+endif ()
+
+
+
 # Define the executable target before linking libraries
 add_executable(Pong main.cpp
         SdlWrapper.h
@@ -22,7 +29,8 @@ add_executable(Pong main.cpp
         Vec2d/Vec2d.h
         Vec2d/Bump.h
         VisibleObjects/PlayerPaddle.h
-        VisibleObjects/Side.h)
+        VisibleObjects/Side.h
+        VisibleObjects/Score.h)
 
 # Now link the libraries to the target
-target_link_libraries(Pong ${SDL2_LIBRARIES} ${SDL2_GFX_LIBRARY})
+target_link_libraries(Pong ${SDL2_LIBRARIES} ${SDL2_GFX_LIBRARY} ${SDL2_TTF_LIBRARY})

Game.h

@@ -8,25 +8,34 @@
 #include "SDL.h"
 #include "VisibleObjects/Ball.h"
 #include "VisibleObjects/PlayerPaddle.h"
+#include "VisibleObjects/Score.h"
 
 
 class Game : public SdlWrapper {
 private:
     Ball *ball;
-
+    Score *score;
     PlayerPaddle *leftPaddle, *rightPaddle;
 
 public:
     explicit Game(SDL_Point screenSize) : SdlWrapper("Pong", screenSize, 60) {
         leftPaddle = new PlayerPaddle(&this->screenSize, Side::LEFT);
         rightPaddle = new PlayerPaddle(&this->screenSize, Side::RIGHT);
-        ball = new Ball(&this->screenSize, leftPaddle, rightPaddle);
+
+        auto func = [this](Side side) {
+            const char *player = side == Side::LEFT ? "one" : "two";
+            std::cout << "Player " << player << " won" << std::endl;
+            this->running = false;
+        };
+        score = new Score(5, &this->screenSize, func);
+        ball = new Ball(&this->screenSize, leftPaddle, rightPaddle, score);
     }
 
     ~Game() override {
         delete ball;
         delete leftPaddle;
         delete rightPaddle;
+        delete score;
     }
 
     void draw(SDL_Renderer *renderer) override {
@@ -35,6 +44,7 @@ public:
         SDL_RenderClear(renderer);
 
         ball->draw(renderer);
+        score->draw(renderer);
         leftPaddle->draw(renderer);
         rightPaddle->draw(renderer);
         SDL_RenderPresent(renderer);
@@ -44,6 +54,7 @@ public:
         ball->update();
         leftPaddle->update();
         rightPaddle->update();
+        score->update();
 
         return true;
     }

SdlWrapper.h

@@ -5,6 +5,8 @@
 #pragma
 
 #include <string>
+#include <SDL_ttf.h>
+#include <iostream>
 #include "SDL.h"
 
 class SdlWrapper {
@@ -14,12 +16,20 @@ private:
     SDL_Renderer *renderer;
 protected:
     SDL_Point screenSize;
+    bool running = true;
 
 public:
     explicit SdlWrapper(const char *title, const SDL_Point screenSize, const uint8_t fps) : fps(fps) {
         this->screenSize = screenSize;
 
-        SDL_Init(SDL_INIT_VIDEO);
+        if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+            std::cerr << "Failed to initialize SDL: " << SDL_GetError() << std::endl;
+            exit(-1);
+        }
+        if (TTF_Init() < 0) {
+            std::cerr << "Failed to initialize TTF: " << TTF_GetError() << std::endl;
+            exit(-1);
+        }
         window = SDL_CreateWindow(
                 title,
                 SDL_WINDOWPOS_UNDEFINED,
@@ -48,7 +58,7 @@ public:
     virtual bool handleEvents() = 0;
 
     int loop() {
-        while (true) {
+        while (running) {
             if (!handleEvents() || !update())
                 break;
             draw(renderer);

VisibleObjects/Ball.h

@@ -9,6 +9,7 @@
 #include <SDL2/SDL2_gfxPrimitives.h>
 #include <iostream>
 #include "optional"
+#include "Score.h"
 
 class Ball {
 private:
@@ -18,15 +19,26 @@ private:
     Vec2d *vec2d;
     static const uint32_t color = 0xCD5C5CFF;
     const PlayerPaddle *leftPaddle, *rightPaddle;
+    Score *score;
 
 public:
-    explicit Ball(const SDL_Point *screen, const PlayerPaddle *leftPaddle, const PlayerPaddle *rightPaddle) {
+    explicit Ball(const SDL_Point *screen, const PlayerPaddle *leftPaddle, const PlayerPaddle *rightPaddle,
+                  Score *score) {
+        this->score = score;
         this->screen = screen;
-        this->x = screen->x / 2;
-        this->y = screen->y / 2;
-        this->vec2d = new Vec2d(2.5);
         this->leftPaddle = leftPaddle;
         this->rightPaddle = rightPaddle;
+        this->x = screen->x / 2;
+        this->y = screen->y / 2;
+        vec2d = new Vec2d(4);
+    }
+
+    void resetPosition() {
+        this->x = screen->x / 2;
+        this->y = screen->y / 2;
+
+        delete vec2d;
+        vec2d = new Vec2d(4);
     }
 
     void draw(SDL_Renderer *renderer) const {
@@ -34,16 +46,17 @@ public:
     }
 
     void update() {
-        std::cout << "Ball x: " << x << ", y: " << y << std::endl;
         std::optional<Side> paddleSide = collidedPaddle();
         bool screenEdgeVertical = collidedScreenEdgeVertical();
+        std::optional<Side> scoreSide = collidedScreenEdgeHorizontal();
+
         if (screenEdgeVertical && paddleSide.has_value()) {
             vec2d->bump(BumpType::BOTH, PaddleDirection::NONE);
         } else if (screenEdgeVertical) {
             vec2d->bump(BumpType::WALL, PaddleDirection::NONE);
-        } else if (collidedScreenEdgeHorizontal()) {
-            std::cout << "Player won" << std::endl;
-            exit(1);
+        } else if (scoreSide.has_value()) {
+            score->incrementScore(scoreSide.value());
+            resetPosition();
         }
         if (paddleSide.has_value()) {
             const PlayerPaddle *paddle = paddleSide.value() == Side::LEFT ? leftPaddle : rightPaddle;
@@ -57,27 +70,30 @@ private:
         return y - RADIUS <= 0 || y + RADIUS >= screen->y;
     }
 
-    bool collidedScreenEdgeHorizontal() {
-        return x + RADIUS >= screen->x || x - RADIUS <= 0;
+    std::optional<Side> collidedScreenEdgeHorizontal() {
+        if (x + RADIUS >= screen->x)
+            return Side::RIGHT;
+        else if (x - RADIUS <= 0)
+            return Side::LEFT;
+        return std::nullopt;
     }
 
     std::optional<Side> collidedPaddle() {
-        // Check collision with right paddle
+        // Right paddle
         if (x + RADIUS >= rightPaddle->x &&
             y >= rightPaddle->y &&
             y <= rightPaddle->y + rightPaddle->h) {
             return Side::RIGHT;
         }
-            // Check collision with left paddle
-        else if (x - RADIUS <= leftPaddle->x + leftPaddle->w &&
-                 y >= leftPaddle->y &&
-                 y <= leftPaddle->y + leftPaddle->h) {
+        // Left paddle
+        if (x - RADIUS <= leftPaddle->x + leftPaddle->w &&
+            y >= leftPaddle->y &&
+            y <= leftPaddle->y + leftPaddle->h) {
             return Side::LEFT;
         }
         return std::nullopt;
     }
 
-
 };
 
 

VisibleObjects/Score.h

@@ -0,0 +1,134 @@
+//
+// Created by love on 2024-01-19.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <SDL_render.h>
+#include <functional>
+#include "Side.h"
+#include "SDL_ttf.h"
+
+
+#include <SDL_ttf.h>
+#include <string>
+#include <iostream>
+
+#if defined(_WIN32) || defined(_WIN64)
+// Windows
+    const char* defaultFontPath = "C:\\Windows\\Fonts\\Arial.ttf";
+#elif defined(__linux__)
+const char *defaultFontPath = "/usr/share/fonts/truetype/DejaVuSans-Bold.ttf";
+#else
+// Other platforms
+    const char* defaultFontPath = "path/to/a/default/font.ttf";
+#endif
+
+
+class Score {
+private:
+    uint8_t leftScore, rightScore;
+    const uint8_t MAX_SCORE;
+    std::function<void(Side)> &whenWon;
+    TTF_Font *font;
+    bool hasIncremented = false;
+
+    // Regular
+    SDL_Rect position;
+    SDL_Color color = {243, 156, 18, 255};
+    SDL_Surface *surface = nullptr;
+
+    // Shadow
+    const SDL_Color shadowColor = {243, 156, 18, 100}; // Black color for the shadow
+    SDL_Surface *shadowSurface = nullptr;
+    const int shadowOffset = 3;
+
+public:
+    explicit Score(uint8_t max_score, SDL_Point *screenSize, std::function<void(Side)> whenWon) : MAX_SCORE(max_score),
+                                                                                                  whenWon(whenWon) {
+        resetScore();
+        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{screenSize->x / 2 - 50, 10, 100, 40};
+    }
+
+    ~Score() {
+        if (font)
+            TTF_CloseFont(font);
+        if (surface)
+            SDL_FreeSurface(surface);
+    }
+
+    void update() {
+        if (!hasIncremented && surface != nullptr && shadowSurface != nullptr) return;
+
+        if (surface != nullptr)
+            SDL_FreeSurface(surface);
+        if (shadowSurface != nullptr)
+            SDL_FreeSurface(shadowSurface);
+
+        hasIncremented = false;
+        char score_text[8];
+        sprintf(score_text, "%d - %d", leftScore, rightScore);
+
+        // Create shadow surface
+        shadowSurface = TTF_RenderText_Solid(font, score_text, shadowColor);
+        if (shadowSurface == nullptr) {
+            std::cerr << "Failed to create shadow text surface: " << TTF_GetError() << std::endl;
+        }
+
+        // Create main text surface
+        surface = TTF_RenderText_Solid(font, score_text, color);
+        if (surface == nullptr) {
+            std::cerr << "Failed to create text surface: " << TTF_GetError() << std::endl;
+        }
+    }
+
+    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, NULL, &shadowPosition);
+                SDL_DestroyTexture(shadowTexture);
+            }
+        }
+
+        // Draw text
+        if (surface != nullptr) {
+            SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);
+            if (texture != nullptr) {
+                SDL_RenderCopy(renderer, texture, NULL, &position);
+                SDL_DestroyTexture(texture);
+            }
+        }
+    }
+
+    void resetScore() {
+        leftScore = rightScore = 0;
+    }
+
+    void incrementScore(Side side) {
+        hasIncremented = true;
+        uint8_t temp;
+        switch (side) {
+            case Side::LEFT:
+                temp = ++leftScore;
+                break;
+            case Side::RIGHT:
+                temp = ++rightScore;
+                break;
+        }
+
+        if (temp > MAX_SCORE)
+            whenWon(side);
+    }
+
+};