Play with Classical Ship

Game Discussion & Design Details

🕹 Discussion Time: 10-15 minutes

1️⃣ Observing the Game Elements: What objects do you see? What are their properties?

• The game features one large green object (the player’s ship) and multiple small red enemies.
• Background: Black.
• Shapes: The ship and enemies are rectangles.
• Properties:
  • Each object has dimensions (width, height).
  • Each object has a background color.
  • The ship starts at the top-left and has defined x (horizontal) and y (vertical) positions.
  • Enemies spawn on the right with random starting positions (x, y).

2️⃣ Game Mechanics

• Ship Movement:
  • The ship moves using arrow keys.
  • It cannot move outside the game screen.
• Enemy Behavior:
  • Enemies automatically move left at random speeds.
  • They disappear when they reach the left edge.
• Game Over Condition:
  • If the ship collides with an enemy, the game ends.
  • When the ship is hit by an enemy, the game is over.

3️⃣ Developing the Game with Pygame

• ✅ Why Pygame?
  • It simplifies game design by handling graphics, input, and game logic.
  • This game is coded in just 100 lines of Python.
  • We will develop it step by step together.
• 🕹 How Pygame Works
  • Pygame runs a game loop that continuously updates the game screen.
  • Each cycle of this loop is called a frame.
  • We control the frame rate (maximum frames per second).
• 🔄 In Each Frame, We:
  • Check for user input (key presses).
  • Update the ship’s position based on input.
  • Move enemies across the screen.
  • Detect collisions between the ship and enemies.
  • End the game if there’s a collision or the user presses ESC.

4️⃣ Program Structure

1. Import libraries
2. Define variables
3. Initialize Pygame
4. Create the ship
5. Define functions:
• updatePlayer(): Update ship position
• createEnemy(): Spawn new enemies
• updateEnemies(): Move enemies across the screen
6. Start the Game Loop
• Each iteration = one frame
• Check forevents (key presses)
• Create new enemies
• Set background color
• Update ship and enemies
• Detect collisions
• Draw everything on the screen
• Show the updated frame