![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
Updated Space Invaders on the mbed. Improved upon Michael Son's "Mbed Space Invaders" at https://os.mbed.com/users/michaeljson/notebook/mbed-space-invaders/.
Dependencies: mbed wave_player mbed-rtos 4DGL-uLCD-SE SparkfunAnalogJoystick SDFileSystem LSM9DS1_Library_cal_updated
Fork of Two-PlayerSpaceInvaders by
test
Diff: main.cpp
- Revision:
- 13:36cc024dcf6b
- Parent:
- 12:22aedb2598b1
- Child:
- 14:4e7608619043
diff -r 22aedb2598b1 -r 36cc024dcf6b main.cpp --- a/main.cpp Mon Apr 19 19:35:11 2021 +0000 +++ b/main.cpp Wed Apr 21 04:24:56 2021 +0000 @@ -114,6 +114,8 @@ volatile int numWins = 0; volatile bool two_player_win = false; volatile bool two_player_lose = false; +Timer bestTimer; +Mutex SDLock; Mutex mbedLock; // Initialize global player object @@ -128,7 +130,7 @@ // Function Prototypes void move_enemy_down(); -void playstart(void const *args); +//void playstart(void const *args); // PUT BACK IN // Draws the enemies at the initial starting location void draw_enemies_level() @@ -416,10 +418,12 @@ // plays intro music during menu screen while(game_menu) { + SDLock.lock(); wave_file=fopen("/sd/wavfiles/futureEdit2.wav","r"); if(wave_file==NULL) pc.printf("file open error!\n\n\r"); // added this for open error check waver.play(wave_file); fclose(wave_file); + SDLock.unlock(); } // Checks in game sound conditions @@ -428,30 +432,36 @@ // play firing sound when the player fires if(!pb && missile.status == PLAYER_MISSILE_INACTIVE) { + SDLock.lock(); wave_file=fopen("/sd/wavfiles/laserEdit.wav","r"); if(wave_file==NULL) pc.printf("laser file open error!\n\n\r"); // added this for open error check waver.play(wave_file); fclose(wave_file); + SDLock.unlock(); } // if player hit, play hit sound if (hit_player) { + SDLock.lock(); wave_file=fopen("/sd/wavfiles/bigExplosionEdit2.wav","r"); if(wave_file==NULL) pc.printf("explosion file open error!\n\n\r"); // added this for open error check waver.play(wave_file); fclose(wave_file); + SDLock.unlock(); } } // players gameover voice if player loses while(gameover) { + SDLock.lock(); wave_file=fopen("/sd/wavfiles/comicalgameoverEdit.wav","r"); if(wave_file==NULL) pc.printf("gameover file open error!\n\n\r"); // added this for open error check waver.play(wave_file); fclose(wave_file); + SDLock.unlock(); } } } @@ -718,7 +728,7 @@ int blk_x, blk_y; pb.mode(PullUp); - Thread thread(playstart); // intializes the thread to play sound + //Thread thread(playstart); // intializes the thread to play sound // Should only have the Slave thread uncommented if second player. // Should only have the Master thread uncommented if first player. //Thread thread2(mbedSlave); // uncommented if second player -- Brice @@ -739,9 +749,9 @@ int gameover_x_pos = 5; // gameover label x-position int gameover_y_pos = 5; // gameover label y-position int win_x_pos = 2; // congratulations label x-position - int win_y_pos = 5; // congratulations label y-position + int win_y_pos = 4; // congratulations label y-position int startover_x_pos = 3; // startover label x-position - int startover_y_pos = 8; // startover label y-position + int startover_y_pos = 7; // startover label y-position // intialize temporary score and current score int temp = 0; @@ -808,6 +818,9 @@ numWins = 0; } else { begin_game = true; // defaults begin_game to true + + // Start timer to check for best time in single player. + bestTimer.start(); } uLCD.cls(); @@ -913,19 +926,57 @@ // checks if player destroyed all enemies if (numOfEnemies == 0) { + // idea for best-time reading and updating: https://os.mbed.com/questions/75718/i-want-to-assign-int-value-saved-in-sd-t/ + int time = bestTimer.read(); + bestTimer.stop(); + bestTimer.reset(); uLCD.cls(); + char buffer[3] = {0}; + char c = {0}; + char *token; + int i = 0; + int storedTime = 999; + SDLock.lock(); + FILE *sdtime; + sdtime=fopen("/sd/besttime.txt","r"); + if(sdtime==NULL) pc.printf("file open error!\n\n\r"); // added this for open error check + while ((c != '\n') && (i < 3)) { + c = fgetc(sdtime); + buffer[i] = c; + i++; + } + token = strtok(buffer, "\n"); + storedTime = atoi(token); // convert string from file to integer + fclose(sdtime); + if (time < storedTime) { + uLCD.locate(2,10); + uLCD.printf("NEW BEST TIME!"); + uLCD.locate(2,11); + uLCD.printf("%d seconds!", time); + sdtime = fopen("/sd/besttime.txt", "w"); + if (sdtime != NULL) { + fprintf(sdtime, "%d\r\n", time); + fclose(sdtime); + } else { + pc.printf("write: failed!\r\n"); + } + } + SDLock.unlock(); + bool win = true; // sets win to true, for win screen begin_game = false; - // displays video clip + // displays video clip ???? + /* uLCD.cls(); uLCD.media_init(); uLCD.set_sector_address(0x00, 0x00); uLCD.display_video(0,0); Thread::wait(1000); // changed from wait(1) to Thread::wait(1000) since we're using threads -- Brice + */ - uLCD.cls(); + //uLCD.cls(); // prints "Congratulations" on uLCD uLCD.locate(win_x_pos,win_y_pos); @@ -1086,12 +1137,14 @@ two_player_win = true; } - // displays video clip + // displays video clip ??? + /* uLCD.cls(); uLCD.media_init(); uLCD.set_sector_address(0x00, 0x00); uLCD.display_video(0,0); - Thread::wait(1000); // changed from wait(1) + Thread::wait(1000); // changed from wait(1) + */ uLCD.cls(); if (!two_player_win) {