Items

• Background
• Enemy and its health bar
• Game menu
  • Start button
  • Pause button
  • Sound button
  • Muse button
• HP
• Game timer

List

• Let the enemy move along the path
• Let the enemies campaign in sequence in a round
• Re-generate the enemies (when user press the “n” button)
• Let the enemy move along the right path and alternate the enemy path to the other one in the next wave

Process

• Establish a tower then set the attack range
• Generate enemy and its health bar
• Determine whether enemy is in the attack range
  • Attack range : extend a circle with a radius of 150 from the center of the tower
  • Calculate whether the enemy distance <= radius (If yes launch an attack)
• The attack range is displayed when clicking on the tower

Process

• Create the menu
• The “upgrade” button and “sell” button on the menu

Process

• Its buttons on the yellow spot

• The PCR tower is built when someone clicks the corresponding button on the build menu

• Change the attack mode of a PCR tower. (Note: The ability is one shot one kill)

Process

• Create the buttons that can play the music or mute the game when we click the corresponding button

  • The buttons can show a white frame when we move the cursor to the button

• Show the information on the black region

• When an enemy is killed, we get 15 unit of money; When an enemy reach the base, our hp drop 1 unit

Till now we have finished this simple tower defence game .