source code migrating from gitlab

2026-05-15 15:54:49 -04:00
commit 4bd960f53d
4 changed files with 321 additions and 0 deletions
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+cmake_minimum_required(VERSION 4.0)
+project(SnakeClone C)
+set(CMAKE_C_STANDARD 99)
+
+# Adding Raylib
+# include(FetchContent)
+# set(FETCHCONTENT_QUIET FALSE)
+# set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE) # don't build the supplied examples
+# set(BUILD_GAMES    OFF CACHE BOOL "" FORCE) # don't build the supplied example games
+#
+# FetchContent_Declare(
+#     raylib
+#     GIT_REPOSITORY "https://github.com/raysan5/raylib.git"
+#     GIT_TAG "master"
+#     GIT_PROGRESS TRUE
+# )
+#
+# FetchContent_MakeAvailable(raylib)
+
+# Adding our source files
+file(GLOB_RECURSE PROJECT_SOURCES CONFIGURE_DEPENDS "${CMAKE_CURRENT_LIST_DIR}/src/*.c") # Define PROJECT_SOURCES as a list of all source files
+set(PROJECT_INCLUDE "${CMAKE_CURRENT_LIST_DIR}/src/") # Define PROJECT_INCLUDE to be the path to the include directory of the project
+
+find_package(raylib REQUIRED)
+
+# Declaring our executable
+add_executable(${PROJECT_NAME})
+target_sources(${PROJECT_NAME} PRIVATE ${PROJECT_SOURCES})
+target_include_directories(${PROJECT_NAME} PRIVATE ${PROJECT_INCLUDE})
+target_link_libraries(${PROJECT_NAME} PRIVATE raylib)
+
+# Setting ASSETS_PATH
+target_compile_definitions(${PROJECT_NAME} PUBLIC ASSETS_PATH="${CMAKE_CURRENT_SOURCE_DIR}/assets/") # Set the asset path macro to the absolute path on the dev machine
+#target_compile_definitions(${PROJECT_NAME} PUBLIC ASSETS_PATH="./assets") # Set the asset path macro in release mode to a relative path that assumes the assets folder is in the same directory as the game executable
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+# SNAKE CLONE
+
+The first game we write should be relatively easy. There is always a lot of things to do with game development, such as writing the code, designing the levels, making the artwork and/or models for the game. So it's a really good idea to start small and build into making your Science Based Dragon MMO
+
+## Watch Here
+[YouTube](https://youtu.be/lEFoKvBfqHk)
+
+
+## What Next?
+
+I'd look at trying to clone another easy game, maybe easier than snake. Asteroids? Pong? Brick Breaker? Pacman? etc.. there's a ton of old school games that were made with far less resources than we have today.
@@ -0,0 +1,266 @@
+#include <raylib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define GRID_SIZE 25
+#define SCREEN_WIDTH 800
+#define SCREEN_HEIGHT 600
+#define MAX_SCORE 256
+
+int widthByGrid = SCREEN_WIDTH / GRID_SIZE;
+int heightByGrid = SCREEN_HEIGHT / GRID_SIZE;
+
+Vector2 head;
+Vector2 dir;
+Vector2 food;
+Vector2 segments[MAX_SCORE - 1];
+
+int score = 0;
+char scoreStr[32];
+bool isRunning = true;
+bool gameStart = false;
+
+const Color bg = {236, 239, 244, 255};
+const Color snakeRed = {191, 97, 106, 255};
+const Color snakeBlack = {46, 52, 64, 255};
+const Color foodColor = {163, 190, 140, 255};
+const Color textDark = {76, 85, 106, 255};
+const Color textOrange = {208, 135, 112, 255};
+const Color textGreen = {143, 188, 187, 255};
+const Color textBlue = {90, 129, 172, 255};
+
+void initGame();
+void quitGame();
+void draw();
+Vector2 spawnFood();
+bool collide(Vector2 a, Vector2 b);
+bool collideSelf(Vector2 self);
+void processInput();
+void update();
+void gameOver();
+void restartGame();
+void startScreen();
+
+int main(int argc, char *argv[]) {
+  initGame();
+
+  while (!WindowShouldClose()) {
+
+    processInput();
+    if (!gameStart) {
+      startScreen();
+    } else if (isRunning) {
+      update();
+    }
+    if (gameStart) {
+      draw();
+    }
+  }
+
+  quitGame();
+
+  return 0;
+}
+
+void initGame() {
+  time_t t;
+  srand(time(&t));
+  InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "Snake Clone");
+
+  SetTargetFPS(10);
+
+  sprintf(scoreStr, "SCORE: %d", score);
+
+  head.x = 0;
+  head.y = 0;
+  dir.x = 1;
+  dir.y = 0;
+
+  food = spawnFood();
+}
+
+Vector2 spawnFood() {
+
+  Vector2 snack = {1 + rand() % (GRID_SIZE - 2), 1 + rand() % (GRID_SIZE - 2)};
+
+  while (collide(head, snack) || collideSelf(snack)) {
+    snack.x = 1 + rand() % (GRID_SIZE - 2);
+    snack.y = 1 + rand() % (GRID_SIZE - 2);
+  }
+
+  return snack;
+}
+
+bool collide(Vector2 a, Vector2 b) { return (a.x == b.x && a.y == b.y); }
+
+bool collideSelf(Vector2 self) {
+  for (int i = 0; i < score; i++) {
+    if (collide(self, segments[i])) {
+      return true;
+    }
+  }
+  return false;
+}
+
+void processInput() {
+
+  if (IsKeyPressed(KEY_W) || IsKeyPressed(KEY_UP)) {
+    if (dir.y == 1)
+      return;
+    dir.x = 0;
+    dir.y = -1;
+  }
+
+  if (IsKeyPressed(KEY_A) || IsKeyPressed(KEY_LEFT)) {
+    if (dir.x == 1)
+      return;
+    dir.y = 0;
+    dir.x = -1;
+  }
+
+  if (IsKeyPressed(KEY_D) || IsKeyPressed(KEY_RIGHT)) {
+    if (dir.x == -1)
+      return;
+    dir.y = 0;
+    dir.x = 1;
+  }
+
+  if (IsKeyPressed(KEY_S) || IsKeyPressed(KEY_DOWN)) {
+    if (dir.y == -1)
+      return;
+    dir.y = 1;
+    dir.x = 0;
+  }
+
+  if (IsKeyPressed(KEY_SPACE) && !isRunning) {
+    restartGame();
+  }
+
+  if (IsKeyPressed(KEY_ESCAPE)) {
+    isRunning = false;
+    quitGame();
+  }
+
+  if (IsKeyPressed(KEY_ENTER)) {
+    gameStart = true;
+  }
+}
+
+void update() {
+
+  for (int i = score; i > 0; i--) {
+    segments[i] = segments[i - 1];
+  }
+
+  segments[0] = head;
+
+  head.x += dir.x;
+  head.y += dir.y;
+
+  if (collideSelf(head) || head.x < 0 || head.y < 0 || head.x >= GRID_SIZE ||
+      head.y >= GRID_SIZE) {
+    isRunning = false;
+  }
+
+  if (collide(head, food)) {
+    if (score < MAX_SCORE) {
+      score += 1;
+      sprintf(scoreStr, "SCORE: %d", score);
+    } else {
+      sprintf(scoreStr, "YOU WIN");
+    }
+    food = spawnFood();
+  }
+}
+
+void quitGame() {
+  printf("quitGame called\n");
+  CloseWindow();
+}
+
+void draw() {
+  BeginDrawing();
+
+  ClearBackground(bg);
+
+  DrawRectangle(food.x * widthByGrid, food.y * heightByGrid, widthByGrid,
+                heightByGrid, foodColor);
+
+  DrawRectangle(head.x * widthByGrid, head.y * heightByGrid, widthByGrid,
+                heightByGrid, snakeRed);
+
+  for (int i = 0; i < score; i++) {
+    if (i % 2 == 0) {
+      DrawRectangle(segments[i].x * widthByGrid, segments[i].y * heightByGrid,
+                    widthByGrid, heightByGrid, snakeBlack);
+    } else {
+      DrawRectangle(segments[i].x * widthByGrid, segments[i].y * heightByGrid,
+                    widthByGrid, heightByGrid, snakeRed);
+    }
+  }
+
+  DrawText(scoreStr, 10, 10, 30, textBlue);
+
+  if (!isRunning) {
+    gameOver();
+  }
+
+  EndDrawing();
+}
+
+void gameOver() {
+  DrawText("GAME OVER", 30, 120, 120, textOrange);
+
+  char *restartText = "Try Again? Press Space";
+  int resWidth = MeasureText(restartText, 28);
+  int resMid = (SCREEN_WIDTH - resWidth) / 2;
+  DrawText(restartText, resMid, SCREEN_HEIGHT / 2, 28, textGreen);
+
+  char *quitText = "Press Escape to Quit.";
+  int quitWidth = MeasureText(quitText, 28);
+  int quitMid = (SCREEN_WIDTH - quitWidth) / 2;
+  DrawText(quitText, quitMid, SCREEN_HEIGHT / 2 + 40, 28, textDark);
+}
+
+void restartGame() {
+
+  head.x = 0;
+  head.y = 0;
+
+  dir.x = 1;
+  dir.y = 0;
+
+  score = 0;
+  sprintf(scoreStr, "SCORE %d", score);
+  isRunning = true;
+  food = spawnFood();
+}
+
+void startScreen() {
+  BeginDrawing();
+
+  ClearBackground(bg);
+
+  DrawText("Snake Clone", 30, 120, 120, textGreen);
+
+  char *startText = "Press Enter to Start";
+  int restart = MeasureText(startText, 28);
+  int resX = (SCREEN_WIDTH - restart) / 2;
+  int resY = (SCREEN_HEIGHT / 2);
+  DrawText(startText, resX, restart, 28, textOrange);
+
+  char *quitText = "Press Escape to Quit";
+  int quit = MeasureText(quitText, 28);
+  int quitX = (SCREEN_WIDTH - quit) / 2;
+  int quitY = (SCREEN_HEIGHT / 2) + 40;
+  DrawText(quitText, quitX, quitY, 28, textDark);
+
+  char *helpText = "Use WASD or arrows to move";
+  int help = MeasureText(helpText, 24);
+  int helpX = (SCREEN_WIDTH - help) / 2;
+  int helpY = (SCREEN_HEIGHT / 2) + 80;
+  DrawText(helpText, helpX + 40, helpY, 24, textBlue);
+
+  EndDrawing();
+}
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+# Game Dev Tutorials
+
+These are tutorials mostly written in C and using RayLib
+
+### 1. Snake Clone
+
+If you want to do game dev, you should start off simple. In the first tutorial we will walk through cloning the very basic snake game.
+
+
+