ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_mc18hal_v2

Helios Lyons 201239214

Dependencies:   mbed

Brief

My aim for this project was to create a FRDM K64F adapted version of the classic Space Invaders by Tomohiro Nishikado. The game itself has a number of clear features to implement;

  • Left to right movement for the player 'canon'
  • A fixed amount of player lives
  • Firing mechanics for both canon and invaders (hence collision systems)
  • Random firing from remaining invaders
  • Wave based combat

My own addition to these established ideas was Boss waves, featuring a single, larger sprite which fires at a faster interval than previous waves. The addition of a movement system using a basic for loop, as opposed to a velocity based system, will enhance the nostalgic feel of the game.

https://os.mbed.com/media/uploads/helioslyons/screenshot_2020-05-27_at_06.12.00.png

Gameplay

Movement is controlled with the joystick, moving the canon left or right. Fire by pressing A. Invaders spawn at set positions, but randomly fire at a set interval, which is higher for boss waves. Time is taken during each wave, and displayed at wave intervals, and if the play wins.

Controls are shown on the Gamepad below: (attribution: Craig A. Evans, ELEC2645 University of Leeds)

https://os.mbed.com/media/uploads/helioslyons/screenshot_2020-05-27_at_06.20.18.png

Diff: Canon/Canon.h

Revision:
11:1fd8fca23375
Parent:
10:19b250c7de5e
--- a/Canon/Canon.h	Mon May 18 18:14:35 2020 +0000
+++ b/Canon/Canon.h	Wed May 27 05:07:34 2020 +0000
@@ -14,26 +14,55 @@
 class Canon
 {
 public:
- 
+    /** Constructor */
     Canon();
-    ~Canon(); // destructor
+    /** Destructor */
+    ~Canon();
+    
+    /** Initialises variables
+    * @param boolean for ownership, position (XY - int), and speed (int)
+    */
+    void init(int y);
     
-    void init(int y);
+    /** Draws contents to LCD
+    * @param bitmap and position values (bit, int)
+    */
     void draw(N5110 &lcd);
+    
+    /** Updates position
+    * @param vector, position values (Vector2D, int), direction (char) and magnitude (float)
+    */
     void update(Direction d,float mag);
-    // int add_total_kills(); –– replaced by adding individual type kills
-
-    int kill(int sprite);
      
-    int get_score();
-    
+    /** Gets current position
+    * @return current position (Vector2D)
+    */    
     Vector2D get_pos();
-    int get_x_pos(); // pls delete dumbass
-    int get_y_pos();
+    
+    /** Gets current lives
+    * @return value for life (int)
+    */   
+    int get_life();
+    
+    /** Decrements current lives
+    * @return decremented value of lives (int)
+    */   
+    int remove_life();
     
-    int get_life();
-    int remove_life();
+    /** Resets current lives
+    * @return reset value of lives (int = 3)
+    */  
     int reset_life();
+    
+    /** Returns canon width
+    * @return width (int)
+    */  
+    int get_width();
+    
+    /** Returns canon height
+    * @return height (int)
+    */
+    int get_height();
  
 private:
 
@@ -42,12 +71,6 @@
     int _x;
     int _y;
     int _speed;
-    int _score;
-    int _inv1_kill;
-    int _inv2_kill;
-    int _inv3_kill;
-    int _boss_kill;
-    int _total_kill;
     int _life;
  
 };