ELEC2645 (2018/19) / Mbed 2 deprecated el17dg

Initial publish

Dependencies:   mbed

Fork of el17dg by Dmitrijs Griskovs

game/player.h@28:35af3843de8f, 2019-04-10 (annotated)

Committer:
Noximilien
Date:
Wed Apr 10 15:42:10 2019 +0000
Revision:
28:35af3843de8f
Parent:
27:f05f4e738ba9
Child:
29:579e00b7f118
Moved starSpawnDelay to stars.h. Made enemies move y-direction as the game score increase. Added more comments. Cleaned the code a bit. Changed struct to gameObject in the main.cpp. Made some functions less than 20 lines.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Noximilien 23:240bc00ef25b 1 #ifndef PLAYER_H
Noximilien 23:240bc00ef25b 2 #define PLAYER_H
Noximilien 23:240bc00ef25b 3
Noximilien 23:240bc00ef25b 4 #include "constants.h"
Noximilien 25:749f1efc31fc 5 #include "game.h"
Noximilien 23:240bc00ef25b 6
Noximilien 23:240bc00ef25b 7 const int max_player_blasts = 5;
Noximilien 23:240bc00ef25b 8 const int ship_speed = 2;
Noximilien 23:240bc00ef25b 9
Noximilien 23:240bc00ef25b 10 GameObject blasts[max_player_blasts];
Noximilien 23:240bc00ef25b 11 GameObject player;
Noximilien 23:240bc00ef25b 12 CircleBounds player_bounds;
Noximilien 23:240bc00ef25b 13 CircleBounds blast_bounds;
Noximilien 23:240bc00ef25b 14
Noximilien 28:35af3843de8f 15
Noximilien 28:35af3843de8f 16 class Player{
Noximilien 23:240bc00ef25b 17 public:
Noximilien 23:240bc00ef25b 18
Noximilien 28:35af3843de8f 19 /** A constructor for the palyer's sprite body circle area and the blast circle
Noximilien 28:35af3843de8f 20 * area. It sets the circle radius for collsion callculations.
Noximilien 28:35af3843de8f 21 */
Noximilien 23:240bc00ef25b 22 Player() {
Noximilien 23:240bc00ef25b 23 player_bounds.center.x = 5;
Noximilien 23:240bc00ef25b 24 player_bounds.center.y = 7;
Noximilien 23:240bc00ef25b 25 player_bounds.radius = 7;
Noximilien 23:240bc00ef25b 26
Noximilien 23:240bc00ef25b 27 blast_bounds.center.x = 0;
Noximilien 23:240bc00ef25b 28 blast_bounds.center.y = 1;
Noximilien 23:240bc00ef25b 29 blast_bounds.radius = 1;
Noximilien 23:240bc00ef25b 30 }
Noximilien 27:f05f4e738ba9 31 /** Will move every active blast to the left with blast speed.
Noximilien 28:35af3843de8f 32 * Will deactivate blasts when they live screen, for future reuse.
Noximilien 23:240bc00ef25b 33 */
Noximilien 23:240bc00ef25b 34 void updateAndDrawBlasts() {
Noximilien 23:240bc00ef25b 35 const int blast_speed = 5;
Noximilien 23:240bc00ef25b 36 for (int i = 0; i < max_player_blasts; ++i) {
Noximilien 23:240bc00ef25b 37 if (blasts[i].active) {
Noximilien 23:240bc00ef25b 38 blasts[i].pos.x += blast_speed;
Noximilien 23:240bc00ef25b 39 if (blasts[i].pos.x >= screen_width){
Noximilien 23:240bc00ef25b 40 blasts[i].active = false;
Noximilien 25:749f1efc31fc 41 game_score -= 10;
Noximilien 26:676874c42883 42 score_count_for_difficulty -= 50;
Noximilien 23:240bc00ef25b 43 }
Noximilien 23:240bc00ef25b 44 lcd.setPixel(blasts[i].pos.x, blasts[i].pos.y, 1);
Noximilien 23:240bc00ef25b 45 lcd.setPixel(blasts[i].pos.x+1, blasts[i].pos.y, 1);
Noximilien 23:240bc00ef25b 46 lcd.setPixel(blasts[i].pos.x+2, blasts[i].pos.y, 1);
Noximilien 23:240bc00ef25b 47 }
Noximilien 23:240bc00ef25b 48 }
Noximilien 23:240bc00ef25b 49 }
Noximilien 23:240bc00ef25b 50
Noximilien 27:f05f4e738ba9 51 /** This function searches the array for the inactive blasts,
Noximilien 23:240bc00ef25b 52 * If a blast is set to not active, it will set it active and start drawing
Noximilien 23:240bc00ef25b 53 * it accross the screen until it reaches the LCD border line.
Noximilien 23:240bc00ef25b 54 */
Noximilien 23:240bc00ef25b 55 void fireNewBlast() {
Noximilien 23:240bc00ef25b 56 // Search the array of blasts if inactive we can use it.
Noximilien 23:240bc00ef25b 57 int found = -1;
Noximilien 23:240bc00ef25b 58 for (int i = 0; i < max_player_blasts; ++i) {
Noximilien 23:240bc00ef25b 59 if (!blasts[i].active) {
Noximilien 23:240bc00ef25b 60 found = i;
Noximilien 23:240bc00ef25b 61 break;
Noximilien 23:240bc00ef25b 62 }
Noximilien 23:240bc00ef25b 63 }
Noximilien 23:240bc00ef25b 64
Noximilien 23:240bc00ef25b 65 if (found != -1) {
Noximilien 23:240bc00ef25b 66 blasts[found].active = true;
Noximilien 23:240bc00ef25b 67 blasts[found].pos.x = player.pos.x + spaceship1_width;
Noximilien 23:240bc00ef25b 68 blasts[found].pos.y = player.pos.y + (spaceship1_height/2);
Noximilien 23:240bc00ef25b 69 }
Noximilien 23:240bc00ef25b 70 }
Noximilien 27:f05f4e738ba9 71 /** The function reads the analog input signal from joystick and moves the
Noximilien 28:35af3843de8f 72 * player's ship on the LCD accordingly.(move joystick, the ship moves up
Noximilien 28:35af3843de8f 73 * move joystick right, the ship moves right).
Noximilien 23:240bc00ef25b 74 */
Noximilien 23:240bc00ef25b 75 void playerShipMovement(){
Noximilien 23:240bc00ef25b 76 if(x_dir.read() > joy_threshold_max_x){
Noximilien 23:240bc00ef25b 77 player.pos.x -= ship_speed;
Noximilien 23:240bc00ef25b 78 }
Noximilien 23:240bc00ef25b 79 else if(x_dir.read() < joy_threshold_min_x){
Noximilien 23:240bc00ef25b 80 player.pos.x += ship_speed;
Noximilien 23:240bc00ef25b 81 }
Noximilien 23:240bc00ef25b 82 if(y_dir.read() > joy_threshold_max_y){
Noximilien 23:240bc00ef25b 83 player.pos.y -= ship_speed;
Noximilien 23:240bc00ef25b 84 }
Noximilien 23:240bc00ef25b 85 else if(y_dir.read() < joy_threshold_min_y){
Noximilien 23:240bc00ef25b 86 player.pos.y += ship_speed;
Noximilien 23:240bc00ef25b 87 }
Noximilien 28:35af3843de8f 88 shipMovementLimits();
Noximilien 28:35af3843de8f 89 drawSpriteOnTop(player.pos, player_spaceship1_sprite);
Noximilien 28:35af3843de8f 90 }
Noximilien 28:35af3843de8f 91 private:
Noximilien 28:35af3843de8f 92 /** Prevents the player's ship to go beyond the playing zone limits.*/
Noximilien 28:35af3843de8f 93 void shipMovementLimits(){
Noximilien 23:240bc00ef25b 94 //Limits player ship on screen
Noximilien 23:240bc00ef25b 95 if (player.pos.x < game_area_x){ player.pos.x = game_area_x;}
Noximilien 23:240bc00ef25b 96 if (player.pos.y < game_area_y) { player.pos.y = game_area_y;}
Noximilien 23:240bc00ef25b 97 int max_player_x = game_area_x + game_area_width - spaceship1_width;
Noximilien 23:240bc00ef25b 98 int max_player_y = game_area_y + game_area_height - spaceship1_height;
Noximilien 23:240bc00ef25b 99 if (player.pos.x > max_player_x) player.pos.x = max_player_x;
Noximilien 23:240bc00ef25b 100 if (player.pos.y > max_player_y) player.pos.y = max_player_y;
Noximilien 25:749f1efc31fc 101 }
Noximilien 23:240bc00ef25b 102 };
Noximilien 23:240bc00ef25b 103 #endif