Difference between revisions of "Asteroids"
From WLCS
Line 9: | Line 9: | ||
== Requirements == | == Requirements == | ||
=== Ship Movement === | === Ship Movement === | ||
− | * | + | * Pressing the Right-key turns the ship to the right |
− | * Pressing the | + | * Pressing the Left-key turns the ship to the right |
+ | * Pressing the Up-key will accelerate the ship and go forwards | ||
*# Create a '''speed''' variable and set it to 0 | *# Create a '''speed''' variable and set it to 0 | ||
*# If the W-key is pressed, then increase '''speed''' by a little bit (e.g. 0.5) | *# If the W-key is pressed, then increase '''speed''' by a little bit (e.g. 0.5) | ||
*# Else, if speed is greater than 0, then decrease '''speed''' by a little bit (e.g. -0.5) | *# Else, if speed is greater than 0, then decrease '''speed''' by a little bit (e.g. -0.5) | ||
*# Move the ship '''speed''' steps | *# Move the ship '''speed''' steps | ||
− | * Pressing the | + | * Pressing the Down-key will decelerate the ship and go backwards |
** Follow the same steps as the W-key, but reverse/negate everything | ** Follow the same steps as the W-key, but reverse/negate everything | ||
=== Firing Projectiles === | === Firing Projectiles === | ||
− | * Pressing | + | * Pressing space bar down will fire a projectile (use clones) |
** The projectile should disappear when it hits the edge of the screen | ** The projectile should disappear when it hits the edge of the screen | ||
** If the mouse is held down, a projectiles (clones) should be fired every 0.5 second | ** If the mouse is held down, a projectiles (clones) should be fired every 0.5 second |
Revision as of 13:34, 30 May 2013
Contents
Objectives
- You will create a game that mimics gameplay of Asteroids
- The player will be able to move around using the keyboard
- The player's ship will be affected by momentum and physics
- The player will be able to fire at asteroids and break them apart
- The player will be able to aim using the mouse
- Points will be given to the player for destroying asteroids
Requirements
Ship Movement
- Pressing the Right-key turns the ship to the right
- Pressing the Left-key turns the ship to the right
- Pressing the Up-key will accelerate the ship and go forwards
- Create a speed variable and set it to 0
- If the W-key is pressed, then increase speed by a little bit (e.g. 0.5)
- Else, if speed is greater than 0, then decrease speed by a little bit (e.g. -0.5)
- Move the ship speed steps
- Pressing the Down-key will decelerate the ship and go backwards
- Follow the same steps as the W-key, but reverse/negate everything
Firing Projectiles
- Pressing space bar down will fire a projectile (use clones)
- The projectile should disappear when it hits the edge of the screen
- If the mouse is held down, a projectiles (clones) should be fired every 0.5 second
- A laser/firing sound should be played when a projectile is fired
Asteroids
- Multiple asteroids should appear on the screen doing the following:
- Make an asteroid appear at a random edge of the screen
- Pick a random number between 1-4 (each number corresponds to a side)
- Use if-statements to check for each number 1 through 4,
- Tell the asteroid to appear at a random place along that side (will be different for each side)
- Give it a random direction (depends on the side the asteroid is located)
- Have the asteroid move across the screen
- The asteroid should disappear when it hits another edge
Asteroid Collisions
- If asteroids collide with the ship, then it's game over
- Play a sound for the collision
- If projectiles hit the asteroids, then the asteroid should explode and points given to the player
- Play a sound for the explosion
Aesthetics
- Use a basic star field for the background
- Find simple background music to use -- something appropriate for the theme of the game
Advanced Requirements
- Other flying objects on the screen give different point values
- Large asteroids that explode break apart into smaller asteroids and the smaller ones can be fire upon for points
- Use a cloud variable for the high score