ELEC2645 (2018/19) / Mbed 2 deprecated el17dg

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

Fork of el17dg by Dmitrijs Griskovs

game/stars.h@31:becb8f6bf7b7, 2019-04-23 (annotated)

Committer:
Noximilien
Date:
Tue Apr 23 18:18:57 2019 +0000
Revision:
31:becb8f6bf7b7
Parent:
29:579e00b7f118
Child:
32:5403bb974294
Have changed comments structure as well as the content. Finished intro music. Have cleaned a code in some places to make it readable.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Noximilien 21:0eb394495b8a 1 #ifndef STARS_H
Noximilien 21:0eb394495b8a 2 #define STARS_H
Noximilien 21:0eb394495b8a 3
Noximilien 31:becb8f6bf7b7 4 /*const int max_small_stars = 5;
Noximilien 23:240bc00ef25b 5 const int max_medium_stars = 5;
Noximilien 27:f05f4e738ba9 6 const int small_star_speed = 2;
Noximilien 27:f05f4e738ba9 7 const int medium_star_speed = 6;
Noximilien 28:35af3843de8f 8 const int stars_delay_max = 5;
Noximilien 31:becb8f6bf7b7 9 int stars_delay;*/
Noximilien 23:240bc00ef25b 10
Noximilien 31:becb8f6bf7b7 11 /**
Noximilien 31:becb8f6bf7b7 12 * Stars Class
Noximilien 31:becb8f6bf7b7 13 * @brief Manages, updates and draws the background stars.
Noximilien 29:579e00b7f118 14 * @author Dmitrijs Griskovs
Noximilien 29:579e00b7f118 15 * @date 15/04/2019
Noximilien 29:579e00b7f118 16 */
Noximilien 27:f05f4e738ba9 17 class Stars {
Noximilien 23:240bc00ef25b 18 public:
Noximilien 31:becb8f6bf7b7 19 static const int max_small_stars = 10;
Noximilien 31:becb8f6bf7b7 20 static const int max_medium_stars = 5;
Noximilien 31:becb8f6bf7b7 21 static const int small_star_speed = 2;
Noximilien 31:becb8f6bf7b7 22 static const int medium_star_speed = 6;
Noximilien 31:becb8f6bf7b7 23 static const int stars_delay_max = 5;
Noximilien 31:becb8f6bf7b7 24 int stars_delay;
Noximilien 31:becb8f6bf7b7 25
Noximilien 23:240bc00ef25b 26 GameObject small_stars[max_small_stars];
Noximilien 23:240bc00ef25b 27 GameObject medium_stars[max_medium_stars];
Noximilien 23:240bc00ef25b 28
Noximilien 31:becb8f6bf7b7 29 /**
Noximilien 31:becb8f6bf7b7 30 * @brief Makes a small star active and gives it the start positions.
Noximilien 31:becb8f6bf7b7 31 * @details Searches through the small stars array and if a star is not active,
Noximilien 31:becb8f6bf7b7 32 * it becomes active and is given the position of x (which is 0) and.
Noximilien 31:becb8f6bf7b7 33 * and random position of y.
Noximilien 31:becb8f6bf7b7 34 */
Noximilien 23:240bc00ef25b 35 void newSmallStarFlies() {
Noximilien 23:240bc00ef25b 36 // Search the array of stars if inactive we can use it. - the same as with blasts
Noximilien 23:240bc00ef25b 37 int found = -1;
Noximilien 23:240bc00ef25b 38 for (int i = 0; i < max_small_stars; ++i) {
Noximilien 23:240bc00ef25b 39 if (!small_stars[i].active) {
Noximilien 23:240bc00ef25b 40 found = i;
Noximilien 23:240bc00ef25b 41 break;
Noximilien 23:240bc00ef25b 42 }
Noximilien 23:240bc00ef25b 43 }
Noximilien 23:240bc00ef25b 44
Noximilien 23:240bc00ef25b 45 if (found != -1) {
Noximilien 23:240bc00ef25b 46 small_stars[found].active = true;
Noximilien 23:240bc00ef25b 47 small_stars[found].pos.x = screen_width;
Noximilien 23:240bc00ef25b 48 small_stars[found].pos.y = rand() % screen_height + game_area_y;
Noximilien 21:0eb394495b8a 49 }
Noximilien 21:0eb394495b8a 50 }
Noximilien 31:becb8f6bf7b7 51 /**
Noximilien 31:becb8f6bf7b7 52 * @brief draws small stars on the screen.
Noximilien 31:becb8f6bf7b7 53 * @details when a small star is active, this function updates the position and
Noximilien 31:becb8f6bf7b7 54 * draws it on the screen. Also, When the star leaves the screen limits it
Noximilien 31:becb8f6bf7b7 55 * deactivates the star for a new star to fly.
Noximilien 31:becb8f6bf7b7 56 */
Noximilien 23:240bc00ef25b 57 void updateAndDrawSmallStars(){
Noximilien 23:240bc00ef25b 58 for (int i = 0; i < max_small_stars; ++i) {
Noximilien 23:240bc00ef25b 59 if (small_stars[i].active) {
Noximilien 23:240bc00ef25b 60 small_stars[i].pos.x -= small_star_speed;
Noximilien 23:240bc00ef25b 61 if (small_stars[i].pos.x <= 0){
Noximilien 23:240bc00ef25b 62 small_stars[i].active = false;
Noximilien 29:579e00b7f118 63 }
Noximilien 27:f05f4e738ba9 64 drawSprite(small_stars[i].pos, small_star_sprite);
Noximilien 21:0eb394495b8a 65 }
Noximilien 29:579e00b7f118 66 }
Noximilien 21:0eb394495b8a 67 }
Noximilien 31:becb8f6bf7b7 68 /**
Noximilien 31:becb8f6bf7b7 69 * @brief Makes a medium star active and gives it the start positions.
Noximilien 31:becb8f6bf7b7 70 * @details Searches through the medium stars array and if a star is not active,
Noximilien 31:becb8f6bf7b7 71 * it becomes active and is given the position of x (which is 0) and.
Noximilien 31:becb8f6bf7b7 72 * and random position of y.
Noximilien 31:becb8f6bf7b7 73 */
Noximilien 23:240bc00ef25b 74 void newMediumStarFlies() {
Noximilien 23:240bc00ef25b 75 // Search the array of stars if inactive we can use it. - the same as with blasts
Noximilien 23:240bc00ef25b 76 int found = -1;
Noximilien 23:240bc00ef25b 77 for (int i = 0; i < max_medium_stars; ++i) {
Noximilien 23:240bc00ef25b 78 if (!medium_stars[i].active) {
Noximilien 23:240bc00ef25b 79 found = i;
Noximilien 23:240bc00ef25b 80 break;
Noximilien 21:0eb394495b8a 81 }
Noximilien 23:240bc00ef25b 82 }
Noximilien 23:240bc00ef25b 83 if (found != -1) {
Noximilien 23:240bc00ef25b 84 medium_stars[found].active = true;
Noximilien 23:240bc00ef25b 85 medium_stars[found].pos.x = screen_width;
Noximilien 23:240bc00ef25b 86 medium_stars[found].pos.y = rand() % screen_height + game_area_y;
Noximilien 21:0eb394495b8a 87 }
Noximilien 21:0eb394495b8a 88 }
Noximilien 31:becb8f6bf7b7 89 /**
Noximilien 31:becb8f6bf7b7 90 * @brief draws medium stars on the screen.
Noximilien 31:becb8f6bf7b7 91 * @details when a medium star is active, this function updates the position and
Noximilien 31:becb8f6bf7b7 92 * draws it on the screen. Also, When the star leaves the screen limits it
Noximilien 31:becb8f6bf7b7 93 * deactivates the star for a new star to fly.
Noximilien 31:becb8f6bf7b7 94 */
Noximilien 23:240bc00ef25b 95 void updateAndDrawMediumStars(){
Noximilien 23:240bc00ef25b 96 for (int i = 0; i < max_medium_stars; ++i) {
Noximilien 23:240bc00ef25b 97 if (medium_stars[i].active) {
Noximilien 23:240bc00ef25b 98 medium_stars[i].pos.x -= medium_star_speed;
Noximilien 23:240bc00ef25b 99 if (medium_stars[i].pos.x <= -2){
Noximilien 23:240bc00ef25b 100 medium_stars[i].active = false;
Noximilien 23:240bc00ef25b 101 }
Noximilien 27:f05f4e738ba9 102 drawSprite(medium_stars[i].pos, medium_star_sprite);
Noximilien 23:240bc00ef25b 103 }
Noximilien 23:240bc00ef25b 104 }
Noximilien 23:240bc00ef25b 105 }
Noximilien 28:35af3843de8f 106
Noximilien 31:becb8f6bf7b7 107 /** @brief A separate function for delaying the stars spawn time.*/
Noximilien 28:35af3843de8f 108 void starsSpawnDelay(){
Noximilien 28:35af3843de8f 109 if (stars_delay == stars_delay_max){
Noximilien 31:becb8f6bf7b7 110 //This is dealy between stars generation.
Noximilien 31:becb8f6bf7b7 111 newSmallStarFlies();
Noximilien 31:becb8f6bf7b7 112 newMediumStarFlies();
Noximilien 31:becb8f6bf7b7 113 stars_delay = 0;
Noximilien 28:35af3843de8f 114 }
Noximilien 31:becb8f6bf7b7 115 else {
Noximilien 31:becb8f6bf7b7 116 stars_delay += 1;
Noximilien 31:becb8f6bf7b7 117 }
Noximilien 28:35af3843de8f 118 }
Noximilien 31:becb8f6bf7b7 119 private:
Noximilien 23:240bc00ef25b 120 };
Noximilien 21:0eb394495b8a 121 #endif