Let user select max score at start

CMakeLists.txt

@@ -46,6 +46,8 @@ add_executable(Pong src/main.cpp
         src/text/OptionScreen.cpp
         src/text/Score.h
         src/text/Score.cpp
+        src/text/ScrollOptionScreen.cpp
+        src/text/ScrollOptionScreen.h
 )
 
 # Now link the libraries to the target

src/Game.cpp

@@ -6,8 +6,9 @@ Game::Game(SDL_Point screenSize) : SdlWrapper("Pong", screenSize, 60),
                                    score(new Score(&this->screenSize, 5)),
                                    ball(new Ball(&this->screenSize, leftPaddle, rightPaddle, score)),
                                    startScreen(
-                                           new OptionScreen("Welcome to Pong!\nPress any key to get started...",
-                                                            &this->screenSize, 4)), endScreen(nullptr),
+                                           new ScrollOptionScreen(
+                                                   "Welcome to Pong!\nUse arrowkeys to adjust max score.\nFinish with enter.",
+                                                   &this->screenSize, 4, score->maxScore())), endScreen(nullptr),
                                    gameState(GameState::START_SCREEN) {
 }
 
@@ -86,9 +87,7 @@ bool Game::handleEvents() {
 
         switch (gameState) {
             case GameState::START_SCREEN:
-                if (event.type == SDL_KEYDOWN && !startScreen->hasStartedCounting())
-                    startScreen->startCountDown();
-
+                startScreen->handleEvent(event);
                 break;
             case GameState::GAME:
                 handleGameEvent(event);

src/Game.h

@@ -12,6 +12,7 @@
 #include "text/TextScreen.h"
 #include "text/OptionScreen.h"
 #include "text/Score.h"
+#include "text/ScrollOptionScreen.h"
 
 enum class GameState {
     START_SCREEN, GAME, END_SCREEN
@@ -21,7 +22,8 @@ class Game : public SdlWrapper {
 private:
     Score *score;
     PlayerPaddle *leftPaddle, *rightPaddle;
-    OptionScreen *startScreen, *endScreen;
+    OptionScreen *endScreen;
+    ScrollOptionScreen *startScreen;
     Ball *ball;
 
 protected:

src/text/Score.cpp

@@ -1,6 +1,6 @@
 #include "Score.h"
 
-Score::Score(SDL_Point *screenSize, uint8_t max_score) : MAX_SCORE(max_score), leftScore(0), rightScore(0),
+Score::Score(SDL_Point *screenSize, uint8_t max_score) : maxScore_(max_score), leftScore(0), rightScore(0),
                                                          TextScreen("", screenSize, std::make_optional(
                                                                  SDL_Point{screenSize->x / 2 - 50, 10})) {
 }
@@ -34,6 +34,6 @@ void Score::incrementScore(const Side side) {
             break;
     }
 
-    if (incrementedScore >= MAX_SCORE)
+    if (incrementedScore >= maxScore_)
         sideWon_ = side;
 }

src/text/Score.h

@@ -18,7 +18,7 @@
 
 class Score : public TextScreen {
 private:
-    const uint8_t MAX_SCORE;
+    uint8_t maxScore_;
     std::optional<Side> sideWon_;
 
 public:
@@ -36,5 +36,9 @@ public:
     void resetScore();
 
     void incrementScore(const Side side);
+
+    uint8_t &maxScore() {
+        return maxScore_;
+    }
 };
 

src/text/ScrollOptionScreen.cpp

@@ -0,0 +1,61 @@
+//
+// Created by Love on 2024-01-29.
+//
+
+#include "ScrollOptionScreen.h"
+
+std::string textAppendHelper(std::string string, const std::string &toAppend) {
+    string.append("\nMax Score: ");
+    string.append(toAppend);
+    return std::move(string);
+}
+
+ScrollOptionScreen::ScrollOptionScreen(const std::string &text, SDL_Point *screenSize, int seconds, uint8_t &counterRef)
+        : OptionScreen(textAppendHelper(text, std::to_string(counterRef)), screenSize, seconds),
+          counter(counterRef) {
+}
+
+
+void ScrollOptionScreen::handleEvent(SDL_Event &event) {
+    if (event.type == SDL_KEYDOWN) {
+        switch (event.key.keysym.sym) {
+            case SDLK_w:
+                [[fallthrough]];
+            case SDLK_UP:
+                counter++;
+                shouldUpdate = true;
+                break;
+            case SDLK_s:
+                [[fallthrough]];
+            case SDLK_DOWN:
+                if (counter > 0) {
+                    counter--;
+                    shouldUpdate = true;
+                }
+                break;
+            case SDLK_RETURN:
+                shouldUpdate = true;
+                startCountDown();
+                break;
+        }
+    }
+}
+
+void ScrollOptionScreen::update() {
+    if (shouldUpdate) {
+        size_t lineIndex = getAmountOfLines() - 1;
+        std::string line = getLine(lineIndex);
+        size_t lastSpace = line.rfind(' ');
+        if (lastSpace == std::string::npos) {
+            std::cerr << "Could not find the last space..." << std::endl;
+            return;
+        }
+        line.erase(lastSpace + 1);
+        line.append(std::to_string(counter));
+
+        replaceLine(lineIndex, std::move(line));
+        shouldUpdate = false;
+    }
+
+    OptionScreen::update();
+}

src/text/ScrollOptionScreen.h

@@ -0,0 +1,24 @@
+//
+// Created by Love on 2024-01-29.
+//
+
+#pragma once
+
+
+#include "OptionScreen.h"
+
+class ScrollOptionScreen : public OptionScreen {
+
+private:
+    uint8_t &counter;
+    bool shouldUpdate = true;
+
+public:
+    ScrollOptionScreen(const std::string &text, SDL_Point *screenSize, int seconds, uint8_t &counterRef);
+
+    void handleEvent(SDL_Event &event);
+
+    void update() override;
+};
+
+

src/text/TextScreen.cpp

@@ -1,5 +1,6 @@
 #include <string>
 #include <sstream>
+#include <utility>
 #include "TextScreen.h"
 #include "optional"
 
@@ -41,14 +42,18 @@ void TextScreen::initPositions(const std::string &text) {
     surfaces.clear();
     shadowSurfaces.clear();
     positions.clear();
-    shadowPositions.clear();
 
     surfaces.reserve(lines.size());
     shadowSurfaces.reserve(lines.size());
     positions.reserve(lines.size());
-    shadowPositions.reserve(lines.size());
 
     for (int i = 0; i < lines.size(); ++i) {
+        auto pair = calculatePositionOf(i);
+        positions.push_back(pair);
+    }
+}
+
+Position TextScreen::calculatePositionOf(const int i) const {
     int textWidth, textHeight;
     TTF_SizeText(font, lines[i].c_str(), &textWidth, &textHeight);
 
@@ -61,14 +66,12 @@ void TextScreen::initPositions(const std::string &text) {
     SDL_Rect regularPosition = {base.x, base.y + textHeight * i, textWidth, textHeight};
     SDL_Rect shadowPosition = {base.x + shadowOffset, base.y + textHeight * i + shadowOffset, textWidth,
                                textHeight};
-        positions.push_back(regularPosition);
-        shadowPositions.push_back(shadowPosition);
-    }
+    return Position{.shadowPosition=shadowPosition, .regularPosition=regularPosition};
+
 }
 
 TextScreen::~TextScreen() {
     // TTF_CLoseFont & SDL_FreeSurface are null-safe
-
     TTF_CloseFont(font);
     for (auto *surface: surfaces)
         SDL_FreeSurface(surface);
@@ -81,14 +84,14 @@ void TextScreen::draw(SDL_Renderer *const renderer) {
         // Draw shadow
         SDL_Texture *shadowTexture = SDL_CreateTextureFromSurface(renderer, shadowSurfaces[i]);
         if (shadowTexture != nullptr) {
-            SDL_RenderCopy(renderer, shadowTexture, nullptr, &shadowPositions[i]);
+            SDL_RenderCopy(renderer, shadowTexture, nullptr, &positions[i].shadowPosition);
             SDL_DestroyTexture(shadowTexture);
         }
 
         // Draw text
         SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surfaces[i]);
         if (texture != nullptr) {
-            SDL_RenderCopy(renderer, texture, nullptr, &positions[i]);
+            SDL_RenderCopy(renderer, texture, nullptr, &positions[i].regularPosition);
             SDL_DestroyTexture(texture);
         }
     }
@@ -127,3 +130,24 @@ void TextScreen::update() {
 
     hasUpdated = true;
 }
+
+/**
+ *
+ * @param c to replace with
+ * @param line Should be zero indexed. That means -1 from getAmountOfLines
+ * @param column Should be zero indexed. That means -1 from getAmountOfColumns
+ */
+void TextScreen::replaceLine(const size_t index, std::string line) {
+    lines[index] = std::move(line);
+    hasUpdated = false;
+    positions[index] = calculatePositionOf(index);
+}
+
+std::string &TextScreen::getLine(const size_t index) {
+    return lines[index];
+}
+
+size_t TextScreen::getAmountOfLines() {
+    return lines.size();
+}
+

src/text/TextScreen.h

@@ -12,6 +12,10 @@
 #include "../defaultfont.h"
 #include "iostream"
 
+struct Position {
+    SDL_Rect shadowPosition;
+    SDL_Rect regularPosition;
+};
 
 class TextScreen {
 private:
@@ -22,11 +26,10 @@ private:
     std::optional<SDL_Point> basePosition;
 
     // Regular
-    std::vector<SDL_Rect> positions;
+    std::vector<Position> positions;
     SDL_Color color = {243, 156, 18, 255};
 
     // Shadow
-    std::vector<SDL_Rect> shadowPositions;
     const SDL_Color shadowColor = {243, 156, 18, 100};
     const int shadowOffset = 3;
 
@@ -48,8 +51,17 @@ public:
 
     void setText(const std::string &replaceText);
 
+    void replaceLine(size_t index, std::string line);
+
+    std::string &getLine(size_t index);
+
+    size_t getAmountOfLines();
+
     virtual void update();
 
 private:
     void initPositions(const std::string &text);
+
+    Position calculatePositionOf(int i) const;
+
 };