1D-Pong game based on a LED strip with 150 LPD6803-controlled pixels. Game keeps score for 'best-of-21' game. Written for KL25Z
main.cpp@0:cde34c55fa20, 2013-08-21 (annotated)
- Committer:
- vsluiter
- Date:
- Wed Aug 21 16:52:51 2013 +0000
- Revision:
- 0:cde34c55fa20
- Child:
- 1:7a2ec350cdf5
Demo application
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
vsluiter | 0:cde34c55fa20 | 1 | #include "mbed.h" |
vsluiter | 0:cde34c55fa20 | 2 | |
vsluiter | 0:cde34c55fa20 | 3 | #define NUMBER_OF_PIXELS 50 |
vsluiter | 0:cde34c55fa20 | 4 | #define PADDLE_LENGTH 5 |
vsluiter | 0:cde34c55fa20 | 5 | |
vsluiter | 0:cde34c55fa20 | 6 | void Randomblinks(float seconds, bool colored = false); |
vsluiter | 0:cde34c55fa20 | 7 | void PaddleDemo(float seconds, uint8_t red, uint8_t green, uint8_t blue); |
vsluiter | 0:cde34c55fa20 | 8 | |
vsluiter | 0:cde34c55fa20 | 9 | uint16_t totalstrip[NUMBER_OF_PIXELS]; |
vsluiter | 0:cde34c55fa20 | 10 | volatile int8_t paddlestart= 0; |
vsluiter | 0:cde34c55fa20 | 11 | SPI ledstrip(PTD2,NC,PTD1); |
vsluiter | 0:cde34c55fa20 | 12 | |
vsluiter | 0:cde34c55fa20 | 13 | void UpdatePaddle(void) |
vsluiter | 0:cde34c55fa20 | 14 | { |
vsluiter | 0:cde34c55fa20 | 15 | static uint8_t direction = 1; |
vsluiter | 0:cde34c55fa20 | 16 | if(direction) { |
vsluiter | 0:cde34c55fa20 | 17 | paddlestart++; |
vsluiter | 0:cde34c55fa20 | 18 | } else { |
vsluiter | 0:cde34c55fa20 | 19 | paddlestart--; |
vsluiter | 0:cde34c55fa20 | 20 | } |
vsluiter | 0:cde34c55fa20 | 21 | |
vsluiter | 0:cde34c55fa20 | 22 | if(paddlestart > (NUMBER_OF_PIXELS - PADDLE_LENGTH)) |
vsluiter | 0:cde34c55fa20 | 23 | direction = 0; |
vsluiter | 0:cde34c55fa20 | 24 | if(paddlestart < 0) |
vsluiter | 0:cde34c55fa20 | 25 | direction = 1; |
vsluiter | 0:cde34c55fa20 | 26 | |
vsluiter | 0:cde34c55fa20 | 27 | } |
vsluiter | 0:cde34c55fa20 | 28 | |
vsluiter | 0:cde34c55fa20 | 29 | void UpdateLEDstrip(void) |
vsluiter | 0:cde34c55fa20 | 30 | { |
vsluiter | 0:cde34c55fa20 | 31 | uint8_t pixelcounter; |
vsluiter | 0:cde34c55fa20 | 32 | /*start by writing 32 zeroes */ |
vsluiter | 0:cde34c55fa20 | 33 | ledstrip.write(0); |
vsluiter | 0:cde34c55fa20 | 34 | ledstrip.write(0); |
vsluiter | 0:cde34c55fa20 | 35 | ledstrip.write(0); |
vsluiter | 0:cde34c55fa20 | 36 | ledstrip.write(0); |
vsluiter | 0:cde34c55fa20 | 37 | for(pixelcounter = 0 ; pixelcounter < NUMBER_OF_PIXELS; pixelcounter++) { |
vsluiter | 0:cde34c55fa20 | 38 | ledstrip.write( uint8_t(totalstrip[pixelcounter]>>8));//uint8_t(temp16));//(totalstrip.ledcounter[pixelcounter].red << 2) | (totalstrip.ledcounter[pixelcounter].high << 7) |(totalstrip.ledcounter[pixelcounter].green & 0x << 2) ); |
vsluiter | 0:cde34c55fa20 | 39 | ledstrip.write( uint8_t(totalstrip[pixelcounter]));//(*(uint16_t *)(&totalstrip[pixelcounter]))>>8); |
vsluiter | 0:cde34c55fa20 | 40 | } |
vsluiter | 0:cde34c55fa20 | 41 | } |
vsluiter | 0:cde34c55fa20 | 42 | |
vsluiter | 0:cde34c55fa20 | 43 | void write_led(uint16_t * led, uint8_t red, uint8_t green, uint8_t blue) |
vsluiter | 0:cde34c55fa20 | 44 | { |
vsluiter | 0:cde34c55fa20 | 45 | *led = (1<<15) | ((green >> 3)<<10) | ((red >>3)<< 5) | (blue >>3); |
vsluiter | 0:cde34c55fa20 | 46 | } |
vsluiter | 0:cde34c55fa20 | 47 | int main() |
vsluiter | 0:cde34c55fa20 | 48 | { |
vsluiter | 0:cde34c55fa20 | 49 | Ticker updater; |
vsluiter | 0:cde34c55fa20 | 50 | Ticker paddlepos; |
vsluiter | 0:cde34c55fa20 | 51 | uint8_t ledcounter; |
vsluiter | 0:cde34c55fa20 | 52 | updater.attach(UpdateLEDstrip, .05); |
vsluiter | 0:cde34c55fa20 | 53 | paddlepos.attach(UpdatePaddle, .03); |
vsluiter | 0:cde34c55fa20 | 54 | ledstrip.format(8,0); //15 bits, mode '0' |
vsluiter | 0:cde34c55fa20 | 55 | ledstrip.frequency(100000); |
vsluiter | 0:cde34c55fa20 | 56 | for(ledcounter = 0; ledcounter < NUMBER_OF_PIXELS; ledcounter++) { |
vsluiter | 0:cde34c55fa20 | 57 | write_led(&totalstrip[ledcounter], 0,0,0); |
vsluiter | 0:cde34c55fa20 | 58 | } |
vsluiter | 0:cde34c55fa20 | 59 | while(1) { |
vsluiter | 0:cde34c55fa20 | 60 | PaddleDemo(5,255,10,100); |
vsluiter | 0:cde34c55fa20 | 61 | Randomblinks(5, true); |
vsluiter | 0:cde34c55fa20 | 62 | } |
vsluiter | 0:cde34c55fa20 | 63 | } |
vsluiter | 0:cde34c55fa20 | 64 | |
vsluiter | 0:cde34c55fa20 | 65 | void PaddleDemo(float seconds, uint8_t red, uint8_t green, uint8_t blue) |
vsluiter | 0:cde34c55fa20 | 66 | { |
vsluiter | 0:cde34c55fa20 | 67 | uint8_t ledcounter; |
vsluiter | 0:cde34c55fa20 | 68 | Timer timer; |
vsluiter | 0:cde34c55fa20 | 69 | timer.start(); |
vsluiter | 0:cde34c55fa20 | 70 | while( timer.read() < seconds) |
vsluiter | 0:cde34c55fa20 | 71 | { |
vsluiter | 0:cde34c55fa20 | 72 | for(ledcounter = 0; ledcounter < NUMBER_OF_PIXELS; ledcounter++) |
vsluiter | 0:cde34c55fa20 | 73 | { |
vsluiter | 0:cde34c55fa20 | 74 | if((ledcounter >= paddlestart) && ( ledcounter <= paddlestart+PADDLE_LENGTH)) |
vsluiter | 0:cde34c55fa20 | 75 | write_led(&totalstrip[ledcounter], red,green,blue); |
vsluiter | 0:cde34c55fa20 | 76 | else |
vsluiter | 0:cde34c55fa20 | 77 | write_led(&totalstrip[ledcounter], 0,0,0); |
vsluiter | 0:cde34c55fa20 | 78 | } |
vsluiter | 0:cde34c55fa20 | 79 | } |
vsluiter | 0:cde34c55fa20 | 80 | } |
vsluiter | 0:cde34c55fa20 | 81 | |
vsluiter | 0:cde34c55fa20 | 82 | void Randomblinks(float seconds, bool colored) |
vsluiter | 0:cde34c55fa20 | 83 | { |
vsluiter | 0:cde34c55fa20 | 84 | uint8_t ledcounter; |
vsluiter | 0:cde34c55fa20 | 85 | uint8_t test; |
vsluiter | 0:cde34c55fa20 | 86 | Timer timer; |
vsluiter | 0:cde34c55fa20 | 87 | timer.start(); |
vsluiter | 0:cde34c55fa20 | 88 | while( timer.read() < seconds ) |
vsluiter | 0:cde34c55fa20 | 89 | { |
vsluiter | 0:cde34c55fa20 | 90 | test = 50.0*rand()/(RAND_MAX*1.0); |
vsluiter | 0:cde34c55fa20 | 91 | for(ledcounter = 0; ledcounter < NUMBER_OF_PIXELS; ledcounter++) |
vsluiter | 0:cde34c55fa20 | 92 | { |
vsluiter | 0:cde34c55fa20 | 93 | if(ledcounter == test) |
vsluiter | 0:cde34c55fa20 | 94 | { |
vsluiter | 0:cde34c55fa20 | 95 | if(colored) |
vsluiter | 0:cde34c55fa20 | 96 | write_led(&totalstrip[ledcounter], test*5,(test%10)*25,(test%15)*15); |
vsluiter | 0:cde34c55fa20 | 97 | else |
vsluiter | 0:cde34c55fa20 | 98 | write_led(&totalstrip[ledcounter], 255,255,255); |
vsluiter | 0:cde34c55fa20 | 99 | } |
vsluiter | 0:cde34c55fa20 | 100 | else |
vsluiter | 0:cde34c55fa20 | 101 | write_led(&totalstrip[ledcounter], 0,0,0); |
vsluiter | 0:cde34c55fa20 | 102 | } |
vsluiter | 0:cde34c55fa20 | 103 | } |
vsluiter | 0:cde34c55fa20 | 104 | } |
vsluiter | 0:cde34c55fa20 | 105 | |
vsluiter | 0:cde34c55fa20 | 106 | //DigitalOut myled(LED1); |
vsluiter | 0:cde34c55fa20 | 107 | |
vsluiter | 0:cde34c55fa20 | 108 | //int main() { |
vsluiter | 0:cde34c55fa20 | 109 | // while(1) { |
vsluiter | 0:cde34c55fa20 | 110 | // myled = 1; |
vsluiter | 0:cde34c55fa20 | 111 | // wait(0.2); |
vsluiter | 0:cde34c55fa20 | 112 | // myled = 0; |
vsluiter | 0:cde34c55fa20 | 113 | // wait(0.2); |
vsluiter | 0:cde34c55fa20 | 114 | // } |
vsluiter | 0:cde34c55fa20 | 115 | //} |