ELEC2645 (2015/16) / Mbed 2 deprecated L2_SpaceInvaders

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Dependencies:   Joystick N5110 SDFileSystem mbed

main.h@11:eab3fb334bde, 2016-05-05 (annotated)

Committer:
avi23
Date:
Thu May 05 13:58:33 2016 +0000
Revision:
11:eab3fb334bde
Parent:
9:cbb982b7e353 
Fixed Mute option leaving a trailing 'f'

Who changed what in which revision?

UserRevisionLine numberNew contents of line
avi23 7:babc367a3333 1 /**
avi23 7:babc367a3333 2 @file main.h
avi23 7:babc367a3333 3 @brief Header file containing function prototypes, defines and global variables
avi23 7:babc367a3333 4 @author Avinash Patel
avi23 7:babc367a3333 5 @date April 2016
avi23 7:babc367a3333 6 */
avi23 7:babc367a3333 7
avi23 7:babc367a3333 8 #ifndef MAIN_H
avi23 7:babc367a3333 9 #define MAIN_H
avi23 7:babc367a3333 10
avi23 7:babc367a3333 11 #include "mbed.h"
avi23 7:babc367a3333 12 #include "N5110.h"
avi23 7:babc367a3333 13 #include "Joystick.h"
avi23 8:b2faec20ed8f 14 #include "SDFileSystem.h"
avi23 9:cbb982b7e353 15 #include <algorithm>
avi23 9:cbb982b7e353 16 #include <fstream>
avi23 7:babc367a3333 17
avi23 7:babc367a3333 18 //Direction invaders are travelling
avi23 7:babc367a3333 19 #define LEFT 0
avi23 7:babc367a3333 20 #define RIGHT 1
avi23 7:babc367a3333 21
avi23 7:babc367a3333 22 /**
avi23 7:babc367a3333 23 @namespace r_led
avi23 7:babc367a3333 24 @brief K64F Red LED
avi23 7:babc367a3333 25 */
avi23 7:babc367a3333 26 DigitalOut r_led(LED_RED);
avi23 7:babc367a3333 27 /**
avi23 7:babc367a3333 28 @namespace g_led
avi23 7:babc367a3333 29 @brief K64F Green LED
avi23 7:babc367a3333 30 */
avi23 7:babc367a3333 31 DigitalOut g_led(LED_GREEN);
avi23 7:babc367a3333 32 /**
avi23 7:babc367a3333 33 @namespace b_led
avi23 7:babc367a3333 34 @brief K64F Blue LED
avi23 7:babc367a3333 35 */
avi23 7:babc367a3333 36 DigitalOut b_led(LED_BLUE);
avi23 7:babc367a3333 37
avi23 7:babc367a3333 38 /**
avi23 7:babc367a3333 39 @namespace sw2
avi23 7:babc367a3333 40 @brief Connects SW2 on the K64F as an Interrupt
avi23 7:babc367a3333 41 */
avi23 7:babc367a3333 42 InterruptIn sw2(SW2);
avi23 7:babc367a3333 43 /**
avi23 7:babc367a3333 44 @namespace sw3
avi23 7:babc367a3333 45 @brief Connects SW3 on the K64F as an Interrupt
avi23 7:babc367a3333 46 */
avi23 7:babc367a3333 47 InterruptIn sw3(SW3);
avi23 7:babc367a3333 48
avi23 7:babc367a3333 49 /**
avi23 8:b2faec20ed8f 50 @namespace sd
avi23 8:b2faec20ed8f 51 @brief Configures the sd card file system
avi23 8:b2faec20ed8f 52 */
avi23 8:b2faec20ed8f 53 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
avi23 8:b2faec20ed8f 54
avi23 8:b2faec20ed8f 55 /**
avi23 7:babc367a3333 56 @namespace pc
avi23 7:babc367a3333 57 @brief Serial output to USB for debugging
avi23 7:babc367a3333 58 */
avi23 7:babc367a3333 59 Serial pc(USBTX,USBRX);
avi23 7:babc367a3333 60
avi23 7:babc367a3333 61 /**
avi23 7:babc367a3333 62 @namespace Joystick
avi23 7:babc367a3333 63 @brief Creates the joystick object
avi23 7:babc367a3333 64 @brief X potentiometer, Y potentiometer, joystick button
avi23 7:babc367a3333 65 */
avi23 7:babc367a3333 66 Joystick joystick(PTB3, PTB2, PTB11);
avi23 7:babc367a3333 67
avi23 7:babc367a3333 68 /**
avi23 7:babc367a3333 69 @namespace shoot_button
avi23 7:babc367a3333 70 @brief Connects the shoot button as an Interrupt
avi23 7:babc367a3333 71 */
avi23 7:babc367a3333 72 InterruptIn shoot_button(PTB18);
avi23 7:babc367a3333 73
avi23 7:babc367a3333 74 /**
avi23 8:b2faec20ed8f 75 @namespace buzzer
avi23 8:b2faec20ed8f 76 @brief Configures the buzzer as a PwmOut
avi23 8:b2faec20ed8f 77 */
avi23 8:b2faec20ed8f 78 PwmOut buzzer(PTA2);
avi23 8:b2faec20ed8f 79
avi23 8:b2faec20ed8f 80 /**
avi23 7:babc367a3333 81 @namespace lcd
avi23 7:babc367a3333 82 @brief Interfaces the N5110 Screen with the mbed
avi23 7:babc367a3333 83 <<library /users/eencae/code/N5110/>>
avi23 7:babc367a3333 84 */
avi23 7:babc367a3333 85 // VCC, SCE, RST, D/C, MOSI, SCLK, LED
avi23 7:babc367a3333 86 N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
avi23 7:babc367a3333 87
avi23 7:babc367a3333 88 /**
avi23 7:babc367a3333 89 @namespace update_screen
avi23 7:babc367a3333 90 @brief Ticker object which will be used to update the screen every 0.05s
avi23 7:babc367a3333 91 */
avi23 7:babc367a3333 92 Ticker update_screen;
avi23 7:babc367a3333 93 /**
avi23 7:babc367a3333 94 @namespace move_joystick
avi23 7:babc367a3333 95 @brief Ticker object which will query the status of the joystick
avi23 7:babc367a3333 96 @brief Fires every 0.05s
avi23 7:babc367a3333 97 */
avi23 7:babc367a3333 98 Ticker move_joystick;
avi23 7:babc367a3333 99 /**
avi23 7:babc367a3333 100 @namespace move_cannon_missile
avi23 7:babc367a3333 101 @brief Ticker object which will move the cannon's missile up the screen
avi23 7:babc367a3333 102 @brief Is only attached when a missile is on the screen
avi23 7:babc367a3333 103 @brief Fires every 0.05s
avi23 7:babc367a3333 104 */
avi23 7:babc367a3333 105 Ticker move_cannon_missile;
avi23 7:babc367a3333 106 /**
avi23 7:babc367a3333 107 @namespace move_enemies
avi23 7:babc367a3333 108 @brief Ticker object which moves the enemies across and down the screen
avi23 7:babc367a3333 109 @brief Inital firing speed is 1s - Decreses as no of invaders alive decreses up to 0.1s
avi23 7:babc367a3333 110 */
avi23 7:babc367a3333 111 Ticker move_enemies;
avi23 7:babc367a3333 112 /**
avi23 7:babc367a3333 113 @namespace move_invader_normal_missile
avi23 7:babc367a3333 114 @brief Array of tickers which move the invaders missiles down the screen
avi23 7:babc367a3333 115 @brief 1 Ticker per missile
avi23 7:babc367a3333 116 @brief Only attached when the ticker's missile is visible
avi23 7:babc367a3333 117 @brief Fires every 0.1s
avi23 7:babc367a3333 118 */
avi23 7:babc367a3333 119 Ticker move_invader_normal_missile[2];
avi23 8:b2faec20ed8f 120 /**
avi23 8:b2faec20ed8f 121 @namespace move_ufo
avi23 8:b2faec20ed8f 122 @brief Ticker object which moves the UFO across the screen
avi23 8:b2faec20ed8f 123 @brief Is only attached when the UFO is on the screen
avi23 8:b2faec20ed8f 124 @brief Fires every 0.1s
avi23 8:b2faec20ed8f 125 */
avi23 8:b2faec20ed8f 126 Ticker move_ufo;
avi23 8:b2faec20ed8f 127 /**
avi23 8:b2faec20ed8f 128 @namespace fire_buzzer
avi23 8:b2faec20ed8f 129 @brief Ticker object used to change buzzer output
avi23 8:b2faec20ed8f 130 @brief Fires half the period in which move enemies does
avi23 8:b2faec20ed8f 131 */
avi23 8:b2faec20ed8f 132 Ticker fire_buzzer;
avi23 7:babc367a3333 133
avi23 7:babc367a3333 134 /**
avi23 7:babc367a3333 135 @namespace joystick_cursor_regulator
avi23 7:babc367a3333 136 @brief Timeout object which is used to stop the menu cursor jumping
avi23 7:babc367a3333 137 @brief Fires 0.1s after being attached
avi23 7:babc367a3333 138 */
avi23 7:babc367a3333 139 Timeout joystick_cursor_regulator; //Stops the cursor from jumping
avi23 7:babc367a3333 140 /**
avi23 7:babc367a3333 141 @namespace shoot_button_debounce
avi23 7:babc367a3333 142 @brief Timeout object which is used to reduce noisy input from the shoot button
avi23 7:babc367a3333 143 @brief Fires 0.125s after being attached
avi23 7:babc367a3333 144 */
avi23 7:babc367a3333 145 Timeout shoot_button_debounce; //Stops the cannon from firing when transitioning from a menu to the game
avi23 9:cbb982b7e353 146 /**
avi23 9:cbb982b7e353 147 @namespace lp_wait
avi23 9:cbb982b7e353 148 @brief Timeout object to perform a low power wait
avi23 9:cbb982b7e353 149 @brief Fires at the users request
avi23 9:cbb982b7e353 150 */
avi23 9:cbb982b7e353 151 Timeout lp_wait;
avi23 9:cbb982b7e353 152 /**
avi23 9:cbb982b7e353 153 @namespace cannon_hit
avi23 9:cbb982b7e353 154 @brief Timeout object to keep cannon invunerable after it's been hit
avi23 9:cbb982b7e353 155 @brief Fires 1s after being attached
avi23 9:cbb982b7e353 156 */
avi23 9:cbb982b7e353 157 Timeout cannon_hit;
avi23 7:babc367a3333 158
avi23 7:babc367a3333 159 int screen_buffer[84][48]; /*!< Screen Buffer. Each object on the screen has a different integer assigned to it */
avi23 7:babc367a3333 160 const int empty_pixel = 0 ; /*!< Empty Pixels */
avi23 7:babc367a3333 161 const int cannon_pixel = 1; /*!< Pixel number for cannon */
avi23 7:babc367a3333 162 const int first_barrier_pixel = 2; /*!< Pixel number of barrier no 1 */
avi23 7:babc367a3333 163 const int first_large_invader_pixel = 5; /*!< Pixel number of large invader no 1 */
avi23 7:babc367a3333 164 const int first_medium_invader_pixel = 10; /*!< Pixel number of medium invader no 1 */
avi23 7:babc367a3333 165 const int first_small_invader_pixel = 15; /*!< Pixel number of large invader no 1 */
avi23 7:babc367a3333 166 const int ufo_pixel = 20; /*!< Pixel number for UFO */
avi23 7:babc367a3333 167 const int cannon_missile_pixel = 21; /*!< Pixel number for the cannon's missile */
avi23 7:babc367a3333 168 const int invader_normal_missile_pixel = 22; /*!< Pixel number for the invader's normal missile */
avi23 7:babc367a3333 169
avi23 7:babc367a3333 170 //Booleans
avi23 7:babc367a3333 171 //Invader related bools
avi23 7:babc367a3333 172 bool invaders_in_state2 = true; /*!< Viewing state the invaders are in */
avi23 7:babc367a3333 173 bool invader_direction = RIGHT; /*!< Direction the invaders are travalling */
avi23 7:babc367a3333 174 //Cannon missile bool
avi23 7:babc367a3333 175 bool cannon_missile_on_screen = false; /*!< Stores whether the cannon has a missile on screen */
avi23 8:b2faec20ed8f 176 //UFO bool
avi23 8:b2faec20ed8f 177 bool ufo_on_screen = false; /*!< Stores whether the UFO is on the screen */
avi23 8:b2faec20ed8f 178 bool ufo_direction = RIGHT; /*!< Stores the direction of the UFO */
avi23 8:b2faec20ed8f 179 bool ufo_bonus = false; /*!< Player has activated UFO bonus scoring */
avi23 8:b2faec20ed8f 180 //Buzzer bool
avi23 8:b2faec20ed8f 181 bool is_muted = true; /*!< Whether game is muted */
avi23 8:b2faec20ed8f 182 bool play_sound = true; /*!< Whether the buzzer is in a sound playing state */
avi23 7:babc367a3333 183
avi23 7:babc367a3333 184 //Integers
avi23 7:babc367a3333 185 int score = 0; /*!< Current score*/
avi23 7:babc367a3333 186 int fsm_state = 0; /*!< Menu FSM state */
avi23 9:cbb982b7e353 187 int brightness_state = 4; /*!< Brightness FSM state */
avi23 8:b2faec20ed8f 188 int buzzer_state = 0; /*!< Buzzer FSM state */
avi23 7:babc367a3333 189 int cursor_y_pos = 0; /*!< Cursor position */
avi23 8:b2faec20ed8f 190 int shot_count; /*!< No of missiles player has fired for ufo bonus */
avi23 7:babc367a3333 191 //Cannon related integers
avi23 7:babc367a3333 192 int number_of_lives = 3; /*!< Number of lives remaining */
avi23 8:b2faec20ed8f 193 int cannon_xpos = 15; /*!< X position of the cannon */
avi23 7:babc367a3333 194 const int cannon_ypos = 43; /*!< Y position of the cannon */
avi23 7:babc367a3333 195 //Cannon missile related integers
avi23 7:babc367a3333 196 int cannon_missile_x_pos = 28; /*!< X position of the cannon's missile */
avi23 7:babc367a3333 197 int cannon_missile_y_pos = 40; /*!< Y position of the cannon's missile */
avi23 7:babc367a3333 198 //Invader related integers
avi23 7:babc367a3333 199 int no_of_alive_invaders = 15; /*!< Number of alive invaders */
avi23 8:b2faec20ed8f 200 int down_count = 0; /*!< Times invaders have gone down */
avi23 7:babc367a3333 201 //Invader missile related integers
avi23 7:babc367a3333 202 int invader_strong_missile_x_pos;
avi23 7:babc367a3333 203 int invader_strong_missile_y_pos;
avi23 8:b2faec20ed8f 204 //UFO integers
avi23 8:b2faec20ed8f 205 int ufo_x_pos; /*!< X position of the UFO */
avi23 8:b2faec20ed8f 206 const int ufo_y_pos = 1; /*!< Y position of the UFO */
avi23 7:babc367a3333 207
avi23 7:babc367a3333 208 //Floats
avi23 7:babc367a3333 209 float ticker_period = 1; /*!< Time period the move enemies ticker refreshes */
avi23 7:babc367a3333 210
avi23 7:babc367a3333 211 //Enums
avi23 7:babc367a3333 212 /*! Enum containing invader status */
avi23 7:babc367a3333 213 enum Status {
avi23 7:babc367a3333 214 dead, /*!< Invader is dead - no longer on screen */
avi23 7:babc367a3333 215 dying, /*!< Invader is dying - has been hit with cannon missile but still on the screen */
avi23 7:babc367a3333 216 alive /*!< Invader is alive */
avi23 7:babc367a3333 217 };
avi23 7:babc367a3333 218 /*! Enum containing invader type */
avi23 7:babc367a3333 219 enum Invader {
avi23 7:babc367a3333 220 small, /*!< Small invader */
avi23 7:babc367a3333 221 medium, /*!< Medium invader */
avi23 7:babc367a3333 222 large, /*!< Large invader */
avi23 7:babc367a3333 223 none /*!< No invader */
avi23 7:babc367a3333 224 };
avi23 7:babc367a3333 225 /*! Enum containing game status */
avi23 7:babc367a3333 226 enum GameState {
avi23 7:babc367a3333 227 menu, /*!< Menu state */
avi23 7:babc367a3333 228 game, /*!< Game state */
avi23 7:babc367a3333 229 paused, /*!< Pause game state */
avi23 7:babc367a3333 230 save, /*!< Save game state */
avi23 7:babc367a3333 231 load, /*!< Load game state */
avi23 7:babc367a3333 232 scores, /*!< High scores state */
avi23 9:cbb982b7e353 233 settings, /*!< Setting screen state */
avi23 9:cbb982b7e353 234 over /*!< Game over state */
avi23 7:babc367a3333 235 };
avi23 7:babc367a3333 236 GameState game_state = menu; /*!< Holds what state the game is currently in */
avi23 7:babc367a3333 237
avi23 7:babc367a3333 238 //Bit-maps
avi23 7:babc367a3333 239 /*! Bitmap of cannon */
avi23 7:babc367a3333 240 const bool cannon_bitmap[5][9] = {
avi23 7:babc367a3333 241 {0, 0, 0, 0, 1, 0, 0, 0, 0},
avi23 7:babc367a3333 242 {0, 0, 0, 1, 1, 1, 0, 0, 0},
avi23 7:babc367a3333 243 {0, 1, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 244 {1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 245 {1, 1, 1, 1, 1, 1, 1, 1, 1}
avi23 7:babc367a3333 246 };
avi23 7:babc367a3333 247 //Bitmaps for small invaders
avi23 7:babc367a3333 248 /*! Bitmap of 1st state small invader */
avi23 7:babc367a3333 249 const bool small_invader_bitmap_1[6][8] = { //First state
avi23 7:babc367a3333 250 {0, 0, 0, 1, 1, 0, 0, 0},
avi23 7:babc367a3333 251 {0, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 252 {1, 1, 0, 1, 1, 0, 1, 1},
avi23 7:babc367a3333 253 {1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 254 {0, 1, 0, 1, 1, 0, 1, 0},
avi23 7:babc367a3333 255 {1, 0, 1, 0, 0, 1, 0, 1}
avi23 7:babc367a3333 256 };
avi23 7:babc367a3333 257 /*! Bitmap of 2nd state small invader */
avi23 7:babc367a3333 258 const bool small_invader_bitmap_2[6][8] = { //Second state
avi23 7:babc367a3333 259 {0, 0, 0, 1, 1, 0, 0, 0},
avi23 7:babc367a3333 260 {0, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 261 {1, 1, 0, 1, 1, 0, 1, 1},
avi23 7:babc367a3333 262 {1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 263 {1, 0, 0, 0, 0, 0, 0, 1},
avi23 7:babc367a3333 264 {0, 1, 0, 0, 0, 0, 1, 0}
avi23 7:babc367a3333 265 };
avi23 7:babc367a3333 266 //Bitmaps for medium invaders
avi23 7:babc367a3333 267 /*! Bitmap of 1st state medium invader */
avi23 7:babc367a3333 268 const bool medium_invader_bitmap_1[6][10] = { //First state
avi23 7:babc367a3333 269 {1, 0, 0, 1, 0, 0, 1, 0, 0, 1},
avi23 7:babc367a3333 270 {1, 0, 1, 1, 1, 1, 1, 1, 0, 1},
avi23 7:babc367a3333 271 {1, 1, 1, 0, 1, 1, 0, 1, 1, 1},
avi23 7:babc367a3333 272 {0, 1, 1, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 273 {0, 0, 1, 0, 0, 0, 0, 1, 0, 0},
avi23 7:babc367a3333 274 {0, 1, 0, 0, 0, 0, 0, 0, 1, 0}
avi23 7:babc367a3333 275 };
avi23 7:babc367a3333 276 /*! Bitmap of 2nd state medium invader */
avi23 7:babc367a3333 277 const bool medium_invader_bitmap_2[6][10] = { //Second state
avi23 7:babc367a3333 278 {0, 0, 0, 1, 0, 0, 1, 0, 0, 0},
avi23 7:babc367a3333 279 {0, 0, 1, 1, 1, 1, 1, 1, 0, 0},
avi23 7:babc367a3333 280 {0, 1, 1, 0, 1, 1, 0, 1, 1, 0},
avi23 7:babc367a3333 281 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 282 {1, 0, 1, 0, 0, 0, 0, 1, 0, 1},
avi23 7:babc367a3333 283 {0, 0, 0, 1, 1, 1, 1, 0, 0, 0}
avi23 7:babc367a3333 284 };
avi23 7:babc367a3333 285 //Bitmaps for large invaders
avi23 7:babc367a3333 286 /*! Bitmap of 1st state large invader */
avi23 7:babc367a3333 287 const bool large_invader_bitmap_1[6][12] = { //First state
avi23 7:babc367a3333 288 {0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0},
avi23 7:babc367a3333 289 {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 290 {1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1},
avi23 7:babc367a3333 291 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 292 {0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0},
avi23 7:babc367a3333 293 {0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0}
avi23 7:babc367a3333 294 };
avi23 7:babc367a3333 295 /*! Bitmap of 2nd state large invader */
avi23 7:babc367a3333 296 const bool large_invader_bitmap_2[6][12] = { //Second state
avi23 7:babc367a3333 297 {0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0},
avi23 7:babc367a3333 298 {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0},
avi23 7:babc367a3333 299 {1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1},
avi23 7:babc367a3333 300 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 301 {0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0},
avi23 7:babc367a3333 302 {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}
avi23 7:babc367a3333 303 };
avi23 7:babc367a3333 304 /*! Bitmap of invaders normal missile */
avi23 7:babc367a3333 305 const bool invader_normal_missile_bitmap[4][3] = {
avi23 7:babc367a3333 306 {0, 1, 0},
avi23 7:babc367a3333 307 {1, 1, 1},
avi23 7:babc367a3333 308 {0, 1, 0},
avi23 7:babc367a3333 309 {0, 1, 0}
avi23 7:babc367a3333 310 };
avi23 7:babc367a3333 311 /*! Bitmap of barriers */
avi23 7:babc367a3333 312 const bool barrier_bitmap[8][14] = {
avi23 7:babc367a3333 313 {0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0},
avi23 7:babc367a3333 314 {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0},
avi23 7:babc367a3333 315 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 316 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 317 {1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 318 {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1},
avi23 7:babc367a3333 319 {1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1},
avi23 7:babc367a3333 320 {1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1}
avi23 7:babc367a3333 321 };
avi23 7:babc367a3333 322 /*! Damage bitmap applied when cannon missile hits barrier */
avi23 7:babc367a3333 323 const bool barrier_cannon_missile_damage_bitmap[3][3] = {
avi23 7:babc367a3333 324 {0, 1, 0},
avi23 7:babc367a3333 325 {1, 0, 0},
avi23 7:babc367a3333 326 {1, 0, 1}
avi23 7:babc367a3333 327 };
avi23 7:babc367a3333 328 /*! Damage bitmap applied when normal invader missile hits barrier */
avi23 7:babc367a3333 329 const bool barrier_invader_normal_missile_damage_bitmap[2][3] = {
avi23 7:babc367a3333 330 {1, 0, 1},
avi23 7:babc367a3333 331 {0, 1, 0}
avi23 7:babc367a3333 332 };
avi23 7:babc367a3333 333 /*! UFO bitmap */
avi23 7:babc367a3333 334 const bool ufo_bitmap[5][14] = {
avi23 7:babc367a3333 335 {0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0},
avi23 7:babc367a3333 336 {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0},
avi23 7:babc367a3333 337 {0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0},
avi23 7:babc367a3333 338 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
avi23 7:babc367a3333 339 {0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0}
avi23 7:babc367a3333 340 };
avi23 7:babc367a3333 341
avi23 7:babc367a3333 342 /**
avi23 7:babc367a3333 343 @struct Invaders
avi23 7:babc367a3333 344 @brief Holds data for each invader
avi23 7:babc367a3333 345 */
avi23 7:babc367a3333 346 struct Invaders {
avi23 7:babc367a3333 347 int x_pos; /*!< X position of invader */
avi23 7:babc367a3333 348 int y_pos; /*!< Y position of invader */
avi23 7:babc367a3333 349 enum Status status; /*!< Status of invader */
avi23 7:babc367a3333 350 };
avi23 7:babc367a3333 351 Invaders small_invader[5]; /*!< Declares 5 Small Invaders */
avi23 7:babc367a3333 352 Invaders medium_invader[5]; /*!< Declares 5 Medium Invaders */
avi23 7:babc367a3333 353 Invaders large_invader[5]; /*!< Declairs 5 Large Invaders */
avi23 7:babc367a3333 354 /**
avi23 7:babc367a3333 355 @struct InvaderNormalMissiles
avi23 7:babc367a3333 356 @brief Hold data for normal invader missiles
avi23 7:babc367a3333 357 */
avi23 7:babc367a3333 358 struct InvaderNormalMissiles {
avi23 7:babc367a3333 359 int x_pos; /*!< X position of missile */
avi23 7:babc367a3333 360 int y_pos; /*!< Y position of missile */
avi23 7:babc367a3333 361 bool fired; /*!< Whether missile is on the screen */
avi23 7:babc367a3333 362 };
avi23 7:babc367a3333 363 InvaderNormalMissiles invader_normal_missile[2]; /*!< Declares 2 normal invaders */
avi23 7:babc367a3333 364 /**
avi23 7:babc367a3333 365 @struct Barriers
avi23 7:babc367a3333 366 @brief Holds barrier data
avi23 7:babc367a3333 367 */
avi23 7:babc367a3333 368 struct Barriers {
avi23 7:babc367a3333 369 int x_pos; /*!< X position of barrier */
avi23 7:babc367a3333 370 int y_pos; /*!< Y position of barrier */
avi23 7:babc367a3333 371 bool before_bitmap[8][14]; /*!< State of the displayed barrier */
avi23 7:babc367a3333 372 bool after_bitmap[8][14]; /*!< State of barrier to be displayed */
avi23 7:babc367a3333 373 };
avi23 7:babc367a3333 374 Barriers barrier[3]; /*!< Declares 3 barriers */
avi23 7:babc367a3333 375 /**
avi23 9:cbb982b7e353 376 @struct HighScores
avi23 9:cbb982b7e353 377 @brief Holds leaderboard data
avi23 9:cbb982b7e353 378 */
avi23 9:cbb982b7e353 379 struct HighScores {
avi23 9:cbb982b7e353 380 char name[3];
avi23 9:cbb982b7e353 381 int score;
avi23 9:cbb982b7e353 382 };
avi23 9:cbb982b7e353 383 HighScores high_scores[3]; /*!< Holds data for 5 scores */
avi23 9:cbb982b7e353 384 /**
avi23 7:babc367a3333 385 @struct FSMMenus
avi23 7:babc367a3333 386 @brief Hold the transition data for menus
avi23 7:babc367a3333 387 */
avi23 7:babc367a3333 388 struct FSMMenus {
avi23 7:babc367a3333 389 const GameState output; /*!< Output of the current state */
avi23 7:babc367a3333 390 /**
avi23 7:babc367a3333 391 @var next_state
avi23 7:babc367a3333 392 @brief Stores the next state of the FSM
avi23 7:babc367a3333 393 @brief Index 0 is when joystick is down
avi23 7:babc367a3333 394 @brief Index 1 is when joystick is up
avi23 7:babc367a3333 395 */
avi23 7:babc367a3333 396 const int next_state[2];
avi23 7:babc367a3333 397 };
avi23 7:babc367a3333 398 /*! 4 state FSM for main menu */
avi23 7:babc367a3333 399 FSMMenus fsm_main_menu[4] = {
avi23 7:babc367a3333 400 {game, {1, 3}},
avi23 7:babc367a3333 401 {load, {2, 0}},
avi23 7:babc367a3333 402 {scores, {3, 1}},
avi23 7:babc367a3333 403 {settings, {0, 2}}
avi23 7:babc367a3333 404 };
avi23 7:babc367a3333 405 /*! 3 state FSM for pause menu */
avi23 7:babc367a3333 406 FSMMenus fsm_paused[3] = {
avi23 7:babc367a3333 407 {game, {1, 2}},
avi23 7:babc367a3333 408 {save, {2, 0}},
avi23 7:babc367a3333 409 {menu, {0, 1}}
avi23 7:babc367a3333 410 };
avi23 9:cbb982b7e353 411
avi23 9:cbb982b7e353 412 /*! 4 state fsm for settings menu */
avi23 9:cbb982b7e353 413 FSMMenus fsm_settings[4] = {
avi23 9:cbb982b7e353 414 {settings, {1, 3}},
avi23 9:cbb982b7e353 415 {settings, {2, 0}},
avi23 9:cbb982b7e353 416 {settings, {3, 1}},
avi23 9:cbb982b7e353 417 {settings, {0, 2}}
avi23 9:cbb982b7e353 418 };
avi23 9:cbb982b7e353 419 /**
avi23 9:cbb982b7e353 420 @struct FSMBrightness
avi23 9:cbb982b7e353 421 @brief Holds the brightness transition data
avi23 9:cbb982b7e353 422 */
avi23 9:cbb982b7e353 423 struct FSMBrightness {
avi23 9:cbb982b7e353 424 float output;
avi23 9:cbb982b7e353 425 int next_state;
avi23 9:cbb982b7e353 426 };
avi23 9:cbb982b7e353 427 /*! 5 state fsm for brightness storage */
avi23 9:cbb982b7e353 428 FSMBrightness fsm_brightness[5] = {
avi23 9:cbb982b7e353 429 {0.00, 1},
avi23 9:cbb982b7e353 430 {0.25, 2},
avi23 9:cbb982b7e353 431 {0.50, 3},
avi23 9:cbb982b7e353 432 {0.75, 4},
avi23 9:cbb982b7e353 433 {1.00, 0}
avi23 9:cbb982b7e353 434 };
avi23 8:b2faec20ed8f 435 /**
avi23 8:b2faec20ed8f 436 @struct FSMBuzzer
avi23 8:b2faec20ed8f 437 @brief Holds the transition infomation for the buzzer
avi23 8:b2faec20ed8f 438 */
avi23 8:b2faec20ed8f 439 struct FSMBuzzer {
avi23 8:b2faec20ed8f 440 const float frequency;
avi23 8:b2faec20ed8f 441 const int next_state;
avi23 8:b2faec20ed8f 442 };
avi23 8:b2faec20ed8f 443 /*! 4 state FSM holding buzzer frequencies */
avi23 8:b2faec20ed8f 444 FSMBuzzer fsm_buzzer[] = {
avi23 8:b2faec20ed8f 445 {235.0, 1},
avi23 8:b2faec20ed8f 446 {235.0, 2},
avi23 8:b2faec20ed8f 447 {196.0, 3},
avi23 8:b2faec20ed8f 448 {275.0, 0}
avi23 8:b2faec20ed8f 449 };
avi23 7:babc367a3333 450
avi23 7:babc367a3333 451 /** @name ISR Flags
avi23 7:babc367a3333 452 * Flags set in ISR's
avi23 7:babc367a3333 453 */
avi23 7:babc367a3333 454 ///@{
avi23 7:babc367a3333 455 volatile bool g_update_screen_flag = true; /*!< Update screen flag */
avi23 7:babc367a3333 456 volatile bool g_move_joystick_flag = true; /*!< Move joystick flag */
avi23 7:babc367a3333 457 volatile bool g_move_enemies_flag = true; /*!< Move enemies flag */
avi23 7:babc367a3333 458 volatile bool g_shoot_pressed_flag = false; /*!< Shoot pressed flag */
avi23 7:babc367a3333 459 volatile bool g_move_cannon_missile_flag = false; /*!< Move cannon missile flag */
avi23 7:babc367a3333 460 volatile bool g_move_invader_normal_missile_flag[2] = {false, false}; /*!< Move invader normal missile flags */
avi23 7:babc367a3333 461 volatile bool g_cannon_hit_flag = false; /*!< Cannon hit flag */
avi23 7:babc367a3333 462 volatile bool g_joystick_cursor_regulator_flag = false; /*!< Joystick regulator flag */
avi23 7:babc367a3333 463 volatile bool g_shoot_button_debounce_flag = false; /*!< Shoot button debounce flag */
avi23 8:b2faec20ed8f 464 volatile bool g_move_ufo_flag = false; /*!< Move UFO flag */
avi23 8:b2faec20ed8f 465 volatile bool g_fire_buzzer_flag = true; /*!< Fire Buzzer flag */
avi23 9:cbb982b7e353 466 volatile bool g_lp_wait_flag = false; /*!< LP Wait flag */
avi23 7:babc367a3333 467 ///@}
avi23 7:babc367a3333 468
avi23 7:babc367a3333 469 //Function prototypes
avi23 7:babc367a3333 470 //ISR's
avi23 7:babc367a3333 471 /** @name ISR Functions
avi23 7:babc367a3333 472 * Functions to set ISR values
avi23 7:babc367a3333 473 */
avi23 7:babc367a3333 474 ///@{
avi23 7:babc367a3333 475 void update_screen_isr(); /*!< Sets the update screen flag when called */
avi23 7:babc367a3333 476 void move_joystick_isr(); /*!< Sets the move joystick flag when called */
avi23 7:babc367a3333 477 void move_enemies_isr(); /*!< Sets the move enemies flag when called */
avi23 7:babc367a3333 478 void shoot_pressed_isr(); /*!< Sets the shoot pressed flag when called */
avi23 7:babc367a3333 479 void move_cannon_missile_isr(); /*!< Sets the move cannon missile flag when called */
avi23 9:cbb982b7e353 480 void cannon_hit_isr(); /*!< Clears the cannon hit flag when called */
avi23 7:babc367a3333 481 void joystick_cursor_regulator_isr(); /*!< Sets the joystick regulator flag when called */
avi23 7:babc367a3333 482 void shoot_button_debounce_isr(); /*!< Sets the shoot button debounce flag when called */
avi23 7:babc367a3333 483 //Function pointer to move invader normal missile isr
avi23 7:babc367a3333 484 void (*move_invader_normal_missile_isr[2])(); /*!< Function pointer to help attach move invader normal missile isr's */
avi23 7:babc367a3333 485 void move_invader_normal_missile_0_isr(); /*!< Sets the move invader normal missile [0] flag when called */
avi23 7:babc367a3333 486 void move_invader_normal_missile_1_isr(); /*!< Sets the move invader normal missile [1] flag when called */
avi23 8:b2faec20ed8f 487 void move_ufo_isr(); /*!< Sets the move ufo flag when called */
avi23 8:b2faec20ed8f 488 void fire_buzzer_isr(); /*!< Sets the fire buzzer flag when called */
avi23 9:cbb982b7e353 489 void lp_wait_isr(); /*!< Clear the lp wait flag when called */
avi23 9:cbb982b7e353 490 void shoot_pressed_rise_isr(); /*!< Attaches shoot button debounce timeout */
avi23 7:babc367a3333 491 ///@}
avi23 7:babc367a3333 492 //Other functions
avi23 7:babc367a3333 493 /** Hangs - flashing an LED
avi23 7:babc367a3333 494 */
avi23 7:babc367a3333 495 void error();
avi23 7:babc367a3333 496 /** Sets up serial port to 115200 baud
avi23 7:babc367a3333 497 */
avi23 7:babc367a3333 498 void init_serial();
avi23 7:babc367a3333 499 /** Set-up the on-board LEDs and switches
avi23 7:babc367a3333 500 */
avi23 7:babc367a3333 501 void init_K64F();
avi23 7:babc367a3333 502 /** Configures the shoot button
avi23 7:babc367a3333 503 @brief Sets the shoot button to PullUp mode.
avi23 7:babc367a3333 504 @brief Sets the falling edge of the swich to call the shoot_pressed_isr
avi23 7:babc367a3333 505 */
avi23 7:babc367a3333 506 void init_shoot();
avi23 7:babc367a3333 507 /** Seeds the random number generator with noise from an analog in pin
avi23 7:babc367a3333 508 */
avi23 7:babc367a3333 509 void init_rng();
avi23 7:babc367a3333 510 /** Clears the screen buffer and runs invader and barrier initalisation functions
avi23 7:babc367a3333 511 @brief Sets the flags so invaders show up straight away.
avi23 7:babc367a3333 512 @brief Clears the missile fired flags
avi23 7:babc367a3333 513 */
avi23 7:babc367a3333 514 void InitaliseGame();
avi23 7:babc367a3333 515 /** Contains game logic
avi23 7:babc367a3333 516 @brief Calls screen refresh, cannon movement, barrier drawing, invader movement, missile movement, pause and game over transition functions
avi23 7:babc367a3333 517 @brief Only calls functions when ISR flags are set
avi23 7:babc367a3333 518 */
avi23 7:babc367a3333 519 void Game();
avi23 7:babc367a3333 520 /** Loops through the screen buffer
avi23 7:babc367a3333 521 @brief If pixels are set in the screen buffer set them on the lcd
avi23 7:babc367a3333 522 @brief Otherwise clear them
avi23 7:babc367a3333 523 */
avi23 7:babc367a3333 524 void UpdateScreen();
avi23 7:babc367a3333 525 /** Clears the cannon from the buffer
avi23 7:babc367a3333 526 @brief Increments or decrements the x coordinate of the cannon depending on joystick position - Capped between 0 and 75
avi23 7:babc367a3333 527 @brief Redraws the cannon onto the buffer
avi23 7:babc367a3333 528 */
avi23 7:babc367a3333 529 void MoveCannon();
avi23 7:babc367a3333 530 /** @fn Sets the position and status of the small invaders
avi23 7:babc367a3333 531 */
avi23 7:babc367a3333 532 void InitSmallInvaders();
avi23 7:babc367a3333 533 /** @fn Cycles through small invaders
avi23 7:babc367a3333 534 @brief If their status is not equal to dead clear them from the buffer
avi23 7:babc367a3333 535 */
avi23 7:babc367a3333 536 void ClearSmallInvaders();
avi23 7:babc367a3333 537 /** Cycles through the small invader current bitmap and sets the pixels it occupys in the buffer to empty
avi23 7:babc367a3333 538 @param invader_no - Small invader object number between 0-4
avi23 7:babc367a3333 539 */
avi23 7:babc367a3333 540 void ClearSingleSmallInvader(int invader_no);
avi23 7:babc367a3333 541 /** Cycles through small invaders
avi23 7:babc367a3333 542 @brief If their status is equal to alive set them in the buffer
avi23 7:babc367a3333 543 */
avi23 7:babc367a3333 544 void DrawSmallInvaders();
avi23 7:babc367a3333 545 /** Cycles through the small invader current bitmap and sets the pixels it occupys in the buffer to first_small_invader_pixel + invader_no
avi23 7:babc367a3333 546 @param invader_no - Small invader object number between 0-4
avi23 7:babc367a3333 547 */
avi23 7:babc367a3333 548 void DrawSingleSmallInvader(int invader_no);
avi23 7:babc367a3333 549 /** Sets the position and status of the medium invaders
avi23 7:babc367a3333 550 */
avi23 7:babc367a3333 551 void InitMediumInvaders();
avi23 7:babc367a3333 552 /** Cycles through medium invaders
avi23 7:babc367a3333 553 @brief If their status is not equal to dead clear them from the buffer
avi23 7:babc367a3333 554 */
avi23 7:babc367a3333 555 void ClearMediumInvaders();
avi23 7:babc367a3333 556 /** Cycles through the medium invader current bitmap and sets the pixels it occupys in the buffer to empty
avi23 7:babc367a3333 557 @param invader_no - Medium invader object number between 0-4
avi23 7:babc367a3333 558 */
avi23 7:babc367a3333 559 void ClearSingleMediumInvader(int invader_no);
avi23 7:babc367a3333 560 /** Cycles through medium invaders
avi23 7:babc367a3333 561 @brief If their status is equal to alive set them in the buffer
avi23 7:babc367a3333 562 */
avi23 7:babc367a3333 563 void DrawMediumInvaders();
avi23 7:babc367a3333 564 /** Cycles through the medium invader current bitmap and sets the pixels it occupys in the buffer to first_medium_invader_pixel + invader_no
avi23 7:babc367a3333 565 @param invader_no - Medium invader object number between 0-4
avi23 7:babc367a3333 566 */
avi23 7:babc367a3333 567 void DrawSingleMediumInvader(int invader_no);
avi23 7:babc367a3333 568 /** Sets the position and status of the large invaders
avi23 7:babc367a3333 569 */
avi23 7:babc367a3333 570 void InitLargeInvaders();
avi23 7:babc367a3333 571 /** Cycles through large invaders
avi23 7:babc367a3333 572 @brief If their status is not equal to dead clear them from the buffer
avi23 7:babc367a3333 573 */
avi23 7:babc367a3333 574 void ClearLargeInvaders();
avi23 7:babc367a3333 575 /** Cycles through the large invader current bitmap and sets the pixels it occupys in the buffer to empty
avi23 7:babc367a3333 576 @param invader_no - Large invader object number between 0-4
avi23 7:babc367a3333 577 */
avi23 7:babc367a3333 578 void ClearSingleLargeInvader(int invader_no);
avi23 7:babc367a3333 579 /** Cycles through large invaders
avi23 7:babc367a3333 580 @brief If their status is equal to alive set them in the buffer
avi23 7:babc367a3333 581 */
avi23 7:babc367a3333 582 void DrawLargeInvaders();
avi23 7:babc367a3333 583 /** Cycles through the large invader current bitmap and sets the pixels it occupys in the buffer to first_large_invader_pixel + invader_no
avi23 7:babc367a3333 584 @param invader_no - Large invader object number between 0-4
avi23 7:babc367a3333 585 */
avi23 7:babc367a3333 586 void DrawSingleLargeInvader(int invader_no);
avi23 7:babc367a3333 587 /** Sets the position and loads the bitmap into the barrier objects
avi23 7:babc367a3333 588 */
avi23 7:babc367a3333 589 void InitBarriers();
avi23 7:babc367a3333 590 /** Clears the barrier with the before bitmap and redraw it from the after bitmap which has the damage applied
avi23 7:babc367a3333 591 @brief Copies the after bitmap to the before bitmap
avi23 7:babc367a3333 592 */
avi23 7:babc367a3333 593 void DrawBarriers();
avi23 7:babc367a3333 594 /** If the invader direction is right, calculate the right limit and move the invaders right
avi23 7:babc367a3333 595 @brief Otherwise calculate the left limit and move the invaders left
avi23 7:babc367a3333 596 */
avi23 7:babc367a3333 597 void MoveInvaderXPositions();
avi23 7:babc367a3333 598 /** Checks the status off the invaders per column, starting from the left
avi23 7:babc367a3333 599 @brief If they're alive return the row number
avi23 7:babc367a3333 600 @returns The left-most column invaders are alive
avi23 7:babc367a3333 601 */
avi23 7:babc367a3333 602 int CalculateInvaderLeftLimit();
avi23 7:babc367a3333 603 /** Checks the status off the invaders per column, starting from the right
avi23 7:babc367a3333 604 @brief If they're alive return the row number
avi23 7:babc367a3333 605 @returns The right-most column invaders are alive
avi23 7:babc367a3333 606 */
avi23 7:babc367a3333 607 int CalculateInvaderRightLimit();
avi23 7:babc367a3333 608 /** If there is still room for the invaders to move, move them 2 to the left
avi23 7:babc367a3333 609 @brief Otherwise move them down
avi23 7:babc367a3333 610 @param limit - Large invader object to check for space against
avi23 7:babc367a3333 611 */
avi23 7:babc367a3333 612 void MoveInvadersLeft(int limit);
avi23 7:babc367a3333 613 /** If there is still room for the invaders to move, move them 2 to the right
avi23 7:babc367a3333 614 @brief Otherwise move them down
avi23 7:babc367a3333 615 @param limit - Large invader object to check for space against
avi23 7:babc367a3333 616 */
avi23 7:babc367a3333 617 void MoveInvadersRight(int limit);
avi23 7:babc367a3333 618 /** Calculates the lowest alive invader
avi23 7:babc367a3333 619 @brief If there is still space for the invader to move, move them 3 pixels down
avi23 7:babc367a3333 620 @brief Otherwise end the game
avi23 7:babc367a3333 621 */
avi23 7:babc367a3333 622 void MoveInvaderYPositions(bool new_direction);
avi23 7:babc367a3333 623 /** Checks each row of invaders to find the lowest row which has an alive invader
avi23 7:babc367a3333 624 @returns The lowest row which has an alive invader
avi23 7:babc367a3333 625 */
avi23 7:babc367a3333 626 Invader CalculateInvaderYLimit();
avi23 7:babc367a3333 627 /** Queries the invaders on their status in the specified column
avi23 7:babc367a3333 628 @param column - The column to query
avi23 7:babc367a3333 629 @returns The lowest invader alive in that column
avi23 7:babc367a3333 630 */
avi23 7:babc367a3333 631 Invader LowestInvaderInColumn(int column);
avi23 7:babc367a3333 632 /** Sets the cannon fired flag to true
avi23 7:babc367a3333 633 @brief Configures the start coordinates
avi23 7:babc367a3333 634 @brief Attaches the move cannon missile ticker to fire every 0.05s
avi23 7:babc367a3333 635 */
avi23 7:babc367a3333 636 void FireCannonMissile();
avi23 7:babc367a3333 637 /** If the missile is not beyond the bounds of the screen, clear it, increment the shot and run collision detection
avi23 7:babc367a3333 638 @brief Otherwise clear the last 3 pixels of the missile, mark it as no longer on the screen and detach the ticker
avi23 7:babc367a3333 639 */
avi23 7:babc367a3333 640 void MoveCannonMissile();
avi23 7:babc367a3333 641 /** If the missile hits an invader it will clear it and increment the score or if it hits a barrier apply the appropiate damage to it
avi23 7:babc367a3333 642 @brief Otherwise push the missile to the screen buffer
avi23 7:babc367a3333 643 */
avi23 7:babc367a3333 644 void CollisionDetectionCannonMissile();
avi23 7:babc367a3333 645 /** Finds the invader number the missile hits, sets the hit invader to dying, decrements the no_of_alive_invaders
avi23 7:babc367a3333 646 @brief Stops the missile from travalling up the screen
avi23 7:babc367a3333 647 @param first_pixel - Start no of invader group hit
avi23 7:babc367a3333 648 @param row - What part of the missile hit the invader
avi23 7:babc367a3333 649 @param invader[5] - Struct of the invader group which was hit
avi23 7:babc367a3333 650 @returns The invader number which was hit
avi23 7:babc367a3333 651 */
avi23 7:babc367a3333 652 int CannonMissileHitInvader(int first_pixel, int row, struct Invaders (&invader)[5]);
avi23 7:babc367a3333 653 /** Calculates where to start drawing the damage bitmap over the barrier bitmap and performs the operation
avi23 7:babc367a3333 654 @param row - Which part of the missile hit the barrier
avi23 7:babc367a3333 655 */
avi23 7:babc367a3333 656 void CannonMissileHitBarrier(int row);
avi23 7:babc367a3333 657 /** Random chance of 1/18, decrementing to a 1/3 depending on no of alive invaders, to fire a missile
avi23 7:babc367a3333 658 @brief Only fires if they're are less than 2 on the screen
avi23 7:babc367a3333 659 */
avi23 7:babc367a3333 660 void AttemptToFireInvaderNormalMissiles();
avi23 7:babc367a3333 661 /** Finds the centre point of the chosen invader and fires the missile
avi23 7:babc367a3333 662 @brief Attaches the ticker to move the missile every 0.05s
avi23 7:babc367a3333 663 @param missile_no - Which missile will be fired
avi23 7:babc367a3333 664 @param source - Type of invader which missile will be fired from (Used to calculate start position)
avi23 7:babc367a3333 665 @param invader - Invader which missile will orginiate from
avi23 7:babc367a3333 666 */
avi23 7:babc367a3333 667 void FireNormalInvaderMissile(int missile_no, Invader source, const struct Invaders (&invader));
avi23 7:babc367a3333 668 /** Clears the missile from the screen buffer
avi23 7:babc367a3333 669 @brief Increments the missile up the screen and runs collision detection if within screen bounds, otherwise set fired flag as false and detach the ticker
avi23 7:babc367a3333 670 @param missile_no - Which missile is being moved
avi23 7:babc367a3333 671 */
avi23 7:babc367a3333 672 void MoveInvaderNormalMissile(int missile_no);
avi23 7:babc367a3333 673 /** Checks the bottom centre point for a collision. If it hasn't push the missile to the screen buffer
avi23 7:babc367a3333 674 @param missile_no - Which missile is being checked
avi23 7:babc367a3333 675 */
avi23 7:babc367a3333 676 void CollisionDetectionInvaderNormalMissile(int missile_no);
avi23 7:babc367a3333 677 /** Decrements the number of lives and pauses the game for 2 seconds
avi23 7:babc367a3333 678 */
avi23 7:babc367a3333 679 void InvaderNormalMissileHitCannon();
avi23 7:babc367a3333 680 /** Calculates where to start drawing the damage bitmap over the barrier bitmap and performs the operation
avi23 7:babc367a3333 681 @param missile - Missile which hit the barrier
avi23 7:babc367a3333 682 */
avi23 7:babc367a3333 683 void InvaderNormalMissileHitBarrier(const struct InvaderNormalMissiles (&missile));
avi23 7:babc367a3333 684 /** Detaches game related tickers
avi23 7:babc367a3333 685 */
avi23 7:babc367a3333 686 void DetachTickers();
avi23 7:babc367a3333 687 /** Attaches game related tickers
avi23 7:babc367a3333 688 */
avi23 7:babc367a3333 689 void AttachTickers();
avi23 7:babc367a3333 690 /** Prints the pause screen and draws the selection cursor
avi23 7:babc367a3333 691 */
avi23 7:babc367a3333 692 void PauseScreen();
avi23 7:babc367a3333 693 /** Prints the text on the pause screen
avi23 7:babc367a3333 694 */
avi23 7:babc367a3333 695 void PrintPauseScreen();
avi23 7:babc367a3333 696 /** Clears the cursor and sets the next state of the supplied fsm
avi23 7:babc367a3333 697 @brief Next state depends on joystick value
avi23 7:babc367a3333 698 @param fsm - Finite State Machine for the current menu
avi23 7:babc367a3333 699 */
avi23 7:babc367a3333 700 void MoveCursor(const struct FSMMenus *fsm);
avi23 8:b2faec20ed8f 701 /** Prints the menu screen and draws the selection cursor
avi23 8:b2faec20ed8f 702 */
avi23 8:b2faec20ed8f 703 void MenuScreen();
avi23 8:b2faec20ed8f 704 /** Prints menu screen text
avi23 8:b2faec20ed8f 705 */
avi23 8:b2faec20ed8f 706 void PrintMenuScreen();
avi23 8:b2faec20ed8f 707 /** Attempts a 1/8 chance to spawn a UFO
avi23 8:b2faec20ed8f 708 */
avi23 8:b2faec20ed8f 709 void AttemptToSpawnUFO();
avi23 8:b2faec20ed8f 710 /** Clears the UFO
avi23 8:b2faec20ed8f 711 */
avi23 8:b2faec20ed8f 712 void ClearUFO();
avi23 8:b2faec20ed8f 713 /** Draws the UFO
avi23 8:b2faec20ed8f 714 @brief If the coordinates extend past the screen the ticker is detached and the UFO is set to not on the screen
avi23 8:b2faec20ed8f 715 */
avi23 7:babc367a3333 716 void DrawUFO();
avi23 9:cbb982b7e353 717 /** Predicate function to sort high scores struct
avi23 9:cbb982b7e353 718 @param lhs - Object to be sorted
avi23 9:cbb982b7e353 719 @param rhs - Object to be sorted
avi23 9:cbb982b7e353 720 @returns lhs.score > rhs.score
avi23 9:cbb982b7e353 721 */
avi23 9:cbb982b7e353 722 bool high_scores_sorter(const struct HighScores (&lhs), const struct HighScores (&rhs));
avi23 9:cbb982b7e353 723 /** Prints the score screen
avi23 9:cbb982b7e353 724 */
avi23 9:cbb982b7e353 725 void ScoreScreen();
avi23 9:cbb982b7e353 726 /** Prints scores to screen
avi23 9:cbb982b7e353 727 */
avi23 9:cbb982b7e353 728 void PrintHighScores();
avi23 9:cbb982b7e353 729 /** Prints the game over screen
avi23 9:cbb982b7e353 730 @brief Name on the left, scores on the right
avi23 9:cbb982b7e353 731 */
avi23 9:cbb982b7e353 732 void GameOverScreen();
avi23 9:cbb982b7e353 733 /** Asks the user to input 3 charactors for name
avi23 9:cbb982b7e353 734 @param name[3] - Name to go with high score
avi23 9:cbb982b7e353 735 */
avi23 9:cbb982b7e353 736 void GetNameForScore(int (&name)[3]);
avi23 9:cbb982b7e353 737 /** Saves the high score structs to file
avi23 9:cbb982b7e353 738 @param name[3] - Name to go with high score
avi23 9:cbb982b7e353 739 */
avi23 9:cbb982b7e353 740 void SaveHighScore(const int (&name)[3]);
avi23 9:cbb982b7e353 741 /** Saves the status of the game to the sd card
avi23 9:cbb982b7e353 742 @brief File is called game_save.dat
avi23 9:cbb982b7e353 743 */
avi23 9:cbb982b7e353 744 void SaveGameData();
avi23 9:cbb982b7e353 745 /** Loads the status of the game to the sd card
avi23 9:cbb982b7e353 746 @brief File is called game_save.dat
avi23 9:cbb982b7e353 747 */
avi23 9:cbb982b7e353 748 void LoadGameData();
avi23 9:cbb982b7e353 749 /**Loads High scores
avi23 9:cbb982b7e353 750 */
avi23 9:cbb982b7e353 751 void LoadHighScores();
avi23 9:cbb982b7e353 752 /** Prints the settings screen
avi23 9:cbb982b7e353 753 */
avi23 9:cbb982b7e353 754 void SettingsScreen();
avi23 9:cbb982b7e353 755 /** Prints static text on screen
avi23 9:cbb982b7e353 756 */
avi23 9:cbb982b7e353 757 void PrintSettingsText();
avi23 9:cbb982b7e353 758 /** Prints changing options on screen
avi23 9:cbb982b7e353 759 */
avi23 9:cbb982b7e353 760 void PrintSettingsOptions();
avi23 9:cbb982b7e353 761 /** Changes requested value on settings screen
avi23 9:cbb982b7e353 762 */
avi23 9:cbb982b7e353 763 void EditOption();
avi23 9:cbb982b7e353 764 /** Deletes game data
avi23 9:cbb982b7e353 765 */
avi23 9:cbb982b7e353 766 void DeleteGameData();
avi23 9:cbb982b7e353 767 /** Attaches a timeout then sets the MCU to sleep until it fires
avi23 9:cbb982b7e353 768 @param t - Time to sleep
avi23 9:cbb982b7e353 769 */
avi23 9:cbb982b7e353 770 void LPWait(float t);
avi23 9:cbb982b7e353 771 /** Prints a splash screen and uses LPWait to wait for 3 seconds
avi23 9:cbb982b7e353 772 */
avi23 9:cbb982b7e353 773 void SplashScreen();
avi23 9:cbb982b7e353 774 /** Sets the buzzer frequency and activates or deactivates it
avi23 9:cbb982b7e353 775 */
avi23 9:cbb982b7e353 776 void PlayBuzzer();
avi23 7:babc367a3333 777
avi23 7:babc367a3333 778 #endif