Update hitboxes

CMakeLists.txt

@@ -22,6 +22,8 @@ add_executable(Obstacle
         src/entities/Player.h
         src/entities/Opponent.cpp
         src/entities/Opponent.h
+        src/states/EndingState.cpp
+        src/states/EndingState.h
 )
 
 target_link_libraries(Obstacle SDL2::SDL2 SDL2_image::SDL2_image SDL2_ttf::SDL2_ttf)

README.md

@@ -1,3 +1,45 @@
-# ObstacleGame
+<br />
+<div align="center">
+  <a href="https://git.gnm.dev/Mathias/ObstacleGame/">
+    <img src="https://git.gnm.dev/Mathias/ObstacleGame/raw/branch/main/res/logo.png" alt="Logo" width="200">
+  </a>
+</div>
 
-Entwickelt für die Berufschule: Ein Spiel, in welchem du Gegnern ausweichen musst.
+
+## 🎮 Obstacle Game
+
+Entwickelt für die Berufschule: Ein Spiel, in welchem du Gegnern ausweichen musst. Geschrieben in C++ mit der SDL2 Library.
+
+### ⬇️ Installation
+
+1. Klone das Repository
+   ```sh
+   git clone https://git.gnm.dev/Mathias/ObstacleGame.git
+   ```
+   
+2. Installer SDL2, SDL2_image, SDL2_ttf, SDL2_mixer
+   ```sh
+   sudo apt-get install libsdl2-dev libsdl2-image-dev libsdl2-ttf-dev libsdl2-mixer-dev
+   ```
+   
+3. Installer CMake
+   ```sh
+    sudo apt-get install cmake
+    ```
+   
+4. Baue das Projekt
+    ```sh
+    mkdir build
+    cd build
+    cmake ..
+    make
+    ```
+   
+5. Starte das Spiel
+    ```sh
+    ./ObstacleGame
+    ```
+   
+### 📝 License
+
+Distributed under the MIT License. See `LICENSE` for more information.

src/Renderer.cpp

@@ -1,5 +1,38 @@
 #include "Renderer.h"
 
+void drawCircle(SDL_Renderer *renderer, int32_t centreX, int32_t centreY, int32_t radius) {
+    const int32_t diameter = (radius * 2);
+
+    int32_t x = (radius - 1);
+    int32_t y = 0;
+    int32_t tx = 1;
+    int32_t ty = 1;
+    int32_t error = (tx - diameter);
+
+    while (x >= y) {
+        SDL_RenderDrawPoint(renderer, centreX + x, centreY - y);
+        SDL_RenderDrawPoint(renderer, centreX + x, centreY + y);
+        SDL_RenderDrawPoint(renderer, centreX - x, centreY - y);
+        SDL_RenderDrawPoint(renderer, centreX - x, centreY + y);
+        SDL_RenderDrawPoint(renderer, centreX + y, centreY - x);
+        SDL_RenderDrawPoint(renderer, centreX + y, centreY + x);
+        SDL_RenderDrawPoint(renderer, centreX - y, centreY - x);
+        SDL_RenderDrawPoint(renderer, centreX - y, centreY + x);
+
+        if (error <= 0) {
+            y++;
+            error += ty;
+            ty += 2;
+        }
+
+        if (error > 0) {
+            x--;
+            tx += 2;
+            error += (tx - diameter);
+        }
+    }
+}
+
 void drawTexture(SDL_Renderer *renderer, SDL_Texture *texture, int x, int y, int w, int h) {
     SDL_Rect src;
     src.x = 0;
@@ -15,8 +48,8 @@ void drawTexture(SDL_Renderer *renderer, SDL_Texture *texture, int x, int y, int
     SDL_RenderCopy(renderer, texture, &src, &dist);
 }
 
-void drawText(SDL_Renderer *renderer, TTF_Font *font, const std::string text, int x, int y) {
-    SDL_Surface *surface = TTF_RenderText_Solid(font, text.c_str(), {255, 255, 255});
+void drawText(SDL_Renderer *renderer, TTF_Font *font, const std::string text, int x, int y, SDL_Color color) {
+    SDL_Surface *surface = TTF_RenderText_Solid(font, text.c_str(), color);
     SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);
 
     SDL_Rect src;

src/Renderer.h

@@ -8,6 +8,7 @@
 #define WINDOW_HEIGHT 500
 
 void drawTexture(SDL_Renderer *renderer, SDL_Texture *texture, int x, int y, int w, int h);
-void drawText(SDL_Renderer *renderer, TTF_Font *font, const std::string text, int x, int y);
+void drawText(SDL_Renderer *renderer, TTF_Font *font, std::string text, int x, int y, SDL_Color color);
+void drawCircle(SDL_Renderer *renderer, int32_t centreX, int32_t centreY, int32_t radius);
 
 #endif

src/main.cpp

@@ -1,10 +1,12 @@
 #include "states/GameState.h"
 #include "states/MainMenuState.h"
 #include "states/InGameState.h"
+#include "states/EndingState.h"
 #include "Renderer.h"
 #include <SDL2/SDL.h>
 #include <memory>
 #include <unordered_map>
+#include <iostream>
 
 int main() {
     TTF_Init();
@@ -12,16 +14,28 @@ int main() {
     SDL_Window* window = SDL_CreateWindow("Obstacle Game",
                                           SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
                                           WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN);
-    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE);
 
     std::unordered_map<std::string, std::shared_ptr<GameState>> states;
     states["main_menu"] = std::make_shared<MainMenuState>();
     states["game"] = std::make_shared<InGameState>();
+    states["ending"] = std::make_shared<EndingState>();
 
     std::shared_ptr<GameState> currentState = states["main_menu"];
 
+    Uint64 NOW = SDL_GetPerformanceCounter();
+    Uint64 LAST = 0;
+    double deltaTime = 0;
+
+    currentState->init();
+
     bool running = true;
     while (running) {
+        LAST = NOW;
+        NOW = SDL_GetPerformanceCounter();
+
+        deltaTime = (double)((NOW - LAST)*1000 / (double)SDL_GetPerformanceFrequency() );
+
         SDL_Event event;
         while (SDL_PollEvent(&event)) {
             if (event.type == SDL_QUIT) {
@@ -31,7 +45,7 @@ int main() {
         }
 
         currentState->update();
-        currentState->render(renderer);
+        currentState->render(renderer, deltaTime);
 
         if (!currentState->getNextState().empty()) {
             std::string nextStateName = currentState->getNextState();
@@ -43,8 +57,6 @@ int main() {
             }
             currentState->clearNextState();
         }
-
-        SDL_Delay(16);
     }
 
     SDL_DestroyRenderer(renderer);

src/states/EndingState.cpp

@@ -0,0 +1,43 @@
+#include "EndingState.h"
+#include "../Renderer.h"
+#include <iostream>
+#include <SDL_image.h>
+
+int score = 0;
+
+void EndingState::init() {
+    SDL_ShowCursor(SDL_ENABLE);
+    std::cout << "Ending state initialized\n";
+    score = SDL_GetTicks() / 100;
+}
+
+void EndingState::handleEvents(SDL_Event& event) {
+    if (event.type == SDL_KEYDOWN) {
+        switch (event.key.keysym.sym) {
+            case SDLK_ESCAPE:
+                std::cout << "Exiting game\n";
+                this->changeRoom("exit");
+                break;
+            default:
+                break;
+        }
+    }
+}
+
+void EndingState::update() {
+
+}
+
+void EndingState::render(SDL_Renderer* renderer, double deltaTime) {
+    SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
+    SDL_RenderClear(renderer);
+
+    TTF_Font *font = TTF_OpenFont("./res/font.ttf", 24);
+    drawText(renderer, font, "GAME OVER",
+             WINDOW_WIDTH / 2 - 100, WINDOW_HEIGHT / 2 - 50, {255, 0, 0, SDL_ALPHA_OPAQUE});
+
+    drawText(renderer, font, "Score: " + std::to_string(score),
+             WINDOW_WIDTH / 2 - 120, WINDOW_HEIGHT / 2, {255, 255, 255, SDL_ALPHA_OPAQUE});
+
+    SDL_RenderPresent(renderer);
+}

src/states/EndingState.h

@@ -0,0 +1,11 @@
+#include "GameState.h"
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_ttf.h>
+
+class EndingState final : public GameState {
+public:
+    void init() override;
+    void handleEvents(SDL_Event& event) override;
+    void update() override;
+    void render(SDL_Renderer* renderer, double deltaTime) override;
+};

src/states/GameState.h

@@ -14,7 +14,7 @@ public:
     virtual void init() = 0;
     virtual void handleEvents(SDL_Event& event) = 0;
     virtual void update() = 0;
-    virtual void render(SDL_Renderer* renderer) = 0;
+    virtual void render(SDL_Renderer* renderer, double deltaTime) = 0;
 
     void changeRoom(const std::string& stateName) {
         nextStateName = stateName;

src/states/InGameState.cpp

@@ -3,12 +3,28 @@
 
 bool keys[4] = {false, false, false, false};
 
+SDL_Rect InGameState::getPlayerHitbox(const Player& player) const {
+    return {player.x + 20, player.y + 20, 40, 56};
+}
+
+SDL_Rect InGameState::getItemHitbox(const Item& item) const {
+    return {item.x, item.y, 24, 24};
+}
+
+SDL_Rect InGameState::getOpponentHitbox(const Opponent& opponent) const {
+    return {opponent.x, opponent.y, 80, 96};
+}
+
 void InGameState::spawnItem(Type type) {
     Item item{};
     item.type = type;
     item.x = rand() % WINDOW_WIDTH;
     item.y = rand() % WINDOW_HEIGHT;
 
+    for (const Item i : items) {
+        if (i.type == type) return;
+    }
+
     items.push_back(item);
 }
 
@@ -17,66 +33,63 @@ void InGameState::renderPlayer(SDL_Renderer* renderer, SDL_Texture* playerTextur
 
     if (showHitboxes) {
         SDL_SetRenderDrawColor(renderer, 255, 0, 0, SDL_ALPHA_OPAQUE);
-        SDL_Rect hitbox = {p.x, p.y, 80, 96};
+        SDL_Rect hitbox = getPlayerHitbox(p);
         SDL_RenderDrawRect(renderer, &hitbox);
     }
 }
 
+
+
 void InGameState::checkCollision() {
     for (int i = 0; i < opponents.size(); i++) {
         Opponent o = opponents[i];
+        SDL_Rect opponentHitbox = getOpponentHitbox(o);
+        SDL_Rect playerHitbox = getPlayerHitbox(player);
+
         if (o.x == o.targetX && o.y == o.targetY) {
             opponents.erase(opponents.begin() + i);
-        }
-        if (player.x < o.x + 80 && player.x + 80 > o.x && player.y < o.y + 96 && player.y + 96 > o.y) {
-            if (player.health > 0) {
+        } else if (SDL_HasIntersection(&playerHitbox, &opponentHitbox)) {
+            if (player.health > 1) {
                 player.health--;
+            } else {
+                this->changeRoom("ending");
             }
-            else {
-                // TODO: Game over sccreen
-            }
-
             opponents.erase(opponents.begin() + i);
         }
     }
 
     for (int i = 0; i < items.size(); i++) {
         Item item = items[i];
-        if (player.x < item.x + 24 && player.x + 80 > item.x && player.y < item.y + 24 && player.y + 96 > item.y) {
-            switch (item.type) {
-            case Type::HEALTH:
-                if (player.health < 3) {
-                    player.health++;
-                }
-                break;
-            case Type::DAMAGE:
-                player.health--;
-                break;
-            }
+        SDL_Rect itemHitbox = getItemHitbox(item);
+        SDL_Rect playerHitbox = getPlayerHitbox(player);
 
-            items.erase(items.begin() + i);
+        if (SDL_HasIntersection(&playerHitbox, &itemHitbox)) {
+            switch (item.type) {
+                case Type::HEALTH:
+                    if (player.health < 3) {
+                        player.health++;
+                        items.erase(items.begin() + i);
+                    }
+                    break;
+                case Type::DAMAGE:
+                    player.health--;
+                    items.erase(items.begin() + i);
+                    break;
+            }
         }
     }
 }
 
-void InGameState::renderItem(SDL_Renderer* renderer, Item i) const {
-    SDL_Texture* itemTexture = IMG_LoadTexture(renderer, i.type == Type::HEALTH ? "./res/heart.png" : "./res/damage.png");
-    switch (i.type) {
-    case Type::HEALTH:
-        drawTexture(renderer, itemTexture, i.x, i.y, 24, 24);
-        SDL_DestroyTexture(itemTexture);
-        break;
-    case Type::DAMAGE:
-        drawTexture(renderer, itemTexture, i.x, i.y, 24, 24);
-        SDL_DestroyTexture(itemTexture);
 
-        break;
-    default: break;
-    }
+void InGameState::renderItem(SDL_Renderer* renderer, Item i) const {
+    SDL_Texture* itemTexture = IMG_LoadTexture(
+            renderer, i.type == Type::HEALTH ? "./res/heart.png" : "./res/damage.png");
+    drawTexture(renderer, itemTexture, i.x, i.y, 24, 24);
+    SDL_DestroyTexture(itemTexture);
 
     if (showHitboxes) {
         SDL_SetRenderDrawColor(renderer, 255, 0, 0, SDL_ALPHA_OPAQUE);
-        SDL_Rect hitbox = {i.x, i.y, 24, 24};
+        SDL_Rect hitbox = getItemHitbox(i);
         SDL_RenderDrawRect(renderer, &hitbox);
     }
 }
@@ -120,7 +133,7 @@ void InGameState::renderOpponent(SDL_Renderer* renderer, SDL_Texture* opponentTe
 
     if (showHitboxes) {
         SDL_SetRenderDrawColor(renderer, 255, 0, 0, SDL_ALPHA_OPAQUE);
-        SDL_Rect hitbox = {o.x, o.y, 80, 96};
+        SDL_Rect hitbox = getOpponentHitbox(o);
         SDL_RenderDrawRect(renderer, &hitbox);
     }
 }
@@ -133,9 +146,28 @@ void InGameState::renderHUD(SDL_Renderer* renderer, SDL_Texture* heart) const {
     for (int i = 0; i < this->player.health; i++) {
         drawTexture(renderer, heart, 10 + i * 30, 10, 24, 24);
     }
+
+    TTF_Font *font = TTF_OpenFont("./res/font.ttf", 24);
+    int score = SDL_GetTicks() / 100;
+
+    int marginL = 90;
+    if (score > 9) marginL = 70;
+    if (score > 99) marginL = 50;
+    if (score > 999) marginL = 20;
+    if (score > 9999) marginL = 0;
+
+    SDL_Rect highRect = {WINDOW_WIDTH - 120 + marginL - 10, 0, 120, 40};
+    SDL_RenderFillRect(renderer, &highRect);
+
+
+    drawText(renderer, font, std::to_string(score),WINDOW_WIDTH - 120 + marginL, 10,
+             {255, 255, 255, SDL_ALPHA_OPAQUE});
+    TTF_CloseFont(font);
 }
 
 void InGameState::init() {
+    std::cout << "Game state initialized\n";
+    SDL_ShowCursor(SDL_ENABLE);
     startTime = time(nullptr);
 }
 
@@ -175,27 +207,27 @@ void InGameState::handleEvents(SDL_Event& event) {
 }
 
 void InGameState::update() {
-
     checkCollision();
 
     if (rand() % 100 == 0) createOpponent();
 
     if (time(nullptr) - startTime > 5) {
-    startTime = time(nullptr);
-    spawnItem(Type::HEALTH);
+        startTime = time(nullptr);
+        spawnItem(Type::HEALTH);
     }
 
     for (Opponent& o : opponents) {
-        o.move(10);
+        o.move(3);
     }
 
-    if (keys[0]) player.moveY(-20);
-    if (keys[1]) player.moveX(-20);
-    if (keys[2]) player.moveY(20);
-    if (keys[3]) player.moveX(20);
+    int speed = 10;
+    if (keys[0]) player.moveY(speed * -1);
+    if (keys[1]) player.moveX(speed * -1);
+    if (keys[2]) player.moveY(speed);
+    if (keys[3]) player.moveX(speed);
 }
 
-void InGameState::render(SDL_Renderer* renderer) {
+void InGameState::render(SDL_Renderer* renderer, double deltaTime) {
     SDL_RenderClear(renderer);
 
     SDL_SetRenderDrawColor(renderer, 35, 39, 42, SDL_ALPHA_OPAQUE);
@@ -203,6 +235,10 @@ void InGameState::render(SDL_Renderer* renderer) {
     SDL_Texture* background = IMG_LoadTexture(renderer, "./res/background.png");
     drawTexture(renderer, background, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
 
+    for (Item i : this->items) {
+        renderItem(renderer, i);
+    }
+
     SDL_Texture* playerTexture = IMG_LoadTexture(renderer, "./res/player.png");
     renderPlayer(renderer, playerTexture, this->player);
 
@@ -211,17 +247,9 @@ void InGameState::render(SDL_Renderer* renderer) {
         renderOpponent(renderer, opponentTexture, o);
     }
 
-    for (Item i : this->items) {
-        renderItem(renderer, i);
-    }
-
     SDL_Texture* heart = IMG_LoadTexture(renderer, "./res/heart.png");
     renderHUD(renderer, heart);
 
-    TTF_Font* font = TTF_OpenFont("./res/font.ttf", 24);
-
-    drawText(renderer, font, "h: " + std::to_string(player.health), 30 * 3 + 15 + 10, 10);
-
     SDL_DestroyTexture(playerTexture);
     SDL_DestroyTexture(opponentTexture);
     SDL_DestroyTexture(heart);

src/states/InGameState.h

@@ -1,3 +1,6 @@
+#ifndef INGAME_STATE_H
+#define INGAME_STATE_H
+
 #include "../entities/Opponent.h"
 #include "GameState.h"
 #include <vector>
@@ -29,7 +32,11 @@ public:
     void init() override;
     void handleEvents(SDL_Event& event) override;
     void update() override;
-    void render(SDL_Renderer* renderer) override;
+    void render(SDL_Renderer* renderer, double deltaTime) override;
+
+    SDL_Rect getPlayerHitbox(const Player &player) const;
+    SDL_Rect getOpponentHitbox(const Opponent& o) const;
+    SDL_Rect getItemHitbox(const Item& i) const;
 
     void spawnItem(Type type);
     void createOpponent();
@@ -38,4 +45,7 @@ public:
     void renderItem(SDL_Renderer* renderer, Item i) const;
     void renderOpponent(SDL_Renderer* renderer, SDL_Texture* opponentTexture, Opponent o) const;
 
-};
+
+};
+
+#endif

src/states/MainMenuState.cpp

@@ -1,12 +1,32 @@
 #include "MainMenuState.h"
 #include <iostream>
+#include <SDL_image.h>
+
+#include "../Renderer.h"
+
+int mouseX = 0;
+int mouseY = 0;
+
+int randomR = 255;
+int randomG = 255;
+int randomB = 255;
+
+int randomSkip = 0;
+
+void MainMenuState::update() {
+    // hide cursor
+}
+
+void MainMenuState::init() {
+    std::cout << "Main menu state initialized\n";
+    SDL_ShowCursor(SDL_DISABLE);
+}
 
 void MainMenuState::handleEvents(SDL_Event& event) {
     if (event.type == SDL_KEYDOWN) {
         switch (event.key.keysym.sym) {
         case SDLK_RETURN:
             std::cout << "Switching to game state\n";
-            this->changeRoom("game");
             break;
         case SDLK_ESCAPE:
             std::cout << "Exiting game\n";
@@ -16,11 +36,41 @@ void MainMenuState::handleEvents(SDL_Event& event) {
             break;
         }
     }
+
+    if (event.type == SDL_MOUSEBUTTONDOWN) {
+        this->changeRoom("game");
+    }
+
+    if (event.type == SDL_MOUSEMOTION) {
+        mouseX = event.motion.x;
+        mouseY = event.motion.y;
+    }
 }
 
-void MainMenuState::render(SDL_Renderer* renderer) {
+void MainMenuState::render(SDL_Renderer* renderer, double deltaTime) {
     SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
     SDL_RenderClear(renderer);
 
+    SDL_Texture* title = IMG_LoadTexture(renderer, "./res/logo.png");
+
+    drawTexture(renderer, title, WINDOW_WIDTH/2-115, 100, 230, 125);
+
+    SDL_SetRenderDrawColor(renderer, 255, 255, 255, SDL_ALPHA_OPAQUE);
+    drawCircle(renderer, mouseX, mouseY, 10);
+    TTF_Font *font = TTF_OpenFont("./res/font.ttf", 24);
+
+    while (randomSkip == 30) {
+        randomR = rand() % 200 + 55;
+        randomG = rand() % 200 + 55;
+        randomB = rand() % 200 + 55;
+        randomSkip = 0;
+    }
+
+    drawText(renderer, font, "Click to Start", WINDOW_WIDTH/2-160, 320, {randomR, randomG, randomB, SDL_ALPHA_OPAQUE});
+
+    randomSkip++;
+
     SDL_RenderPresent(renderer);
+
+    SDL_Delay(deltaTime < 16 ? 16 - deltaTime : 0);
 }

src/states/MainMenuState.h

@@ -1,3 +1,6 @@
+#ifndef MAIN_MNU_STATE_H
+#define MAIN_MNU_STATE_H
+
 #include "GameState.h"
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_ttf.h>
@@ -7,5 +10,7 @@ public:
     void init() override;
     void handleEvents(SDL_Event& event) override;
     void update() override;
-    void render(SDL_Renderer* renderer) override;
+    void render(SDL_Renderer* renderer, double deltaTime) override;
 };
+
+#endif