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

Committer:
helioslyons
Date:
Tue Apr 14 14:09:33 2020 +0000
Revision:
6:e3a1bfbb1627
Parent:
5:72f59786b695
Child:
7:5fe9ac6522c5
Set army starting positions and simplified attributes. Use FSM for invader movement.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
helioslyons 4:c644522ff9d9 1 #include "Army.h"
helioslyons 5:72f59786b695 2 #include "Invader.h"
helioslyons 4:c644522ff9d9 3 #include "Bitmap.h"
helioslyons 4:c644522ff9d9 4 #include <vector>
helioslyons 4:c644522ff9d9 5
helioslyons 4:c644522ff9d9 6 Army::Army()
helioslyons 4:c644522ff9d9 7 {
helioslyons 6:e3a1bfbb1627 8
helioslyons 4:c644522ff9d9 9 }
helioslyons 6:e3a1bfbb1627 10
helioslyons 4:c644522ff9d9 11 Army::~Army()
helioslyons 4:c644522ff9d9 12 {
helioslyons 6:e3a1bfbb1627 13
helioslyons 4:c644522ff9d9 14 }
helioslyons 6:e3a1bfbb1627 15
helioslyons 4:c644522ff9d9 16 void Army::create_army()
helioslyons 4:c644522ff9d9 17 {
helioslyons 5:72f59786b695 18 Invader army[3][3];
helioslyons 5:72f59786b695 19
helioslyons 6:e3a1bfbb1627 20 int i, n;
helioslyons 5:72f59786b695 21 for(i=0; i < 4; i++) {
helioslyons 6:e3a1bfbb1627 22 //army[i][.setX(i);
helioslyons 6:e3a1bfbb1627 23
helioslyons 6:e3a1bfbb1627 24 for(n=0; n < 4; n++) {
helioslyons 5:72f59786b695 25 army[i][n].init(i+1, 1);
helioslyons 5:72f59786b695 26 }
helioslyons 6:e3a1bfbb1627 27 }
helioslyons 6:e3a1bfbb1627 28 }
helioslyons 6:e3a1bfbb1627 29
helioslyons 6:e3a1bfbb1627 30 void Army::create_boss()
helioslyons 6:e3a1bfbb1627 31 {
helioslyons 6:e3a1bfbb1627 32 Invader boss;
helioslyons 6:e3a1bfbb1627 33 boss.init(4, 4);
helioslyons 6:e3a1bfbb1627 34 }
helioslyons 6:e3a1bfbb1627 35
helioslyons 6:e3a1bfbb1627 36 void Army::start_pos(int rowX, int rowY)
helioslyons 6:e3a1bfbb1627 37 {
helioslyons 6:e3a1bfbb1627 38 int tempX = rowX;
helioslyons 6:e3a1bfbb1627 39
helioslyons 6:e3a1bfbb1627 40 for (int i = 0; i < 4; i++){ // Loop through each row and assign start_pos
helioslyons 6:e3a1bfbb1627 41 army[i][0].set_pos(rowX, rowY); // Based on X and Y inputs
helioslyons 6:e3a1bfbb1627 42 rowX += 13; // 2 above standard Invader width of 11
helioslyons 6:e3a1bfbb1627 43 }
helioslyons 6:e3a1bfbb1627 44 rowX = temp;
helioslyons 6:e3a1bfbb1627 45 rowY += 10;
helioslyons 6:e3a1bfbb1627 46 for (int i = 0; i < 4; i++){
helioslyons 6:e3a1bfbb1627 47 army[i][1].set_pos(rowX, rowY);
helioslyons 6:e3a1bfbb1627 48 rowX +=13;
helioslyons 6:e3a1bfbb1627 49 }
helioslyons 6:e3a1bfbb1627 50 rowX = temp;
helioslyons 6:e3a1bfbb1627 51 rowY += 10;
helioslyons 6:e3a1bfbb1627 52 for (int i = 0; i < 4; i++){
helioslyons 6:e3a1bfbb1627 53 army[i][2].set_pos(rowX, rowY);
helioslyons 6:e3a1bfbb1627 54 rowX +=13;
helioslyons 6:e3a1bfbb1627 55 }
helioslyons 6:e3a1bfbb1627 56 }
helioslyons 6:e3a1bfbb1627 57
helioslyons 6:e3a1bfbb1627 58 void Army::move_army(int move_distance)
helioslyons 6:e3a1bfbb1627 59 {
helioslyons 6:e3a1bfbb1627 60 _move_distance = move_distance;
helioslyons 6:e3a1bfbb1627 61 }