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Dependencies: mbed
Fork of ESE350-Whack-a-Mole1 by
Diff: WhackAMole_MASTER.cpp
- Revision:
- 2:20e1d264bc3f
- Parent:
- 1:7fae8b781c61
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WhackAMole_MASTER.cpp Thu Oct 22 23:09:41 2015 +0000 @@ -0,0 +1,211 @@ +#include "mbed.h" +#include "MRF24J40.h" + +#include <string> + +// RF tranceiver to link with handheld. +MRF24J40 mrf(p11, p12, p13, p14, p21); + +// LEDs you can treat these as variables (led2 = 1 will turn led2 on!) +DigitalOut led1(LED1); +DigitalOut led2(LED2); +DigitalOut led3(LED3); +DigitalOut led4(LED4); + +// Timer +Timer timer; +//Timer timeout_timer; +int timeout_ms = 5000; // ms +int mole = 0; + +// Serial port for showing RX data. +Serial pc(USBTX, USBRX); + +// Used for sending and receiving +char txBuffer[128]; +char rxBuffer[128]; +int rxLen; + +// funcs +int get_mole(); +void led_update(int i); + +// global vars +int total_time = 0; +int send_new_mole = 1; +int round = 0; + +//***************** Do not change these methods (please) *****************// + +/** +* Receive data from the MRF24J40. +* +* @param data A pointer to a char array to hold the data +* @param maxLength The max amount of data to read. +*/ +int rf_receive(char *data, uint8_t maxLength) +{ + uint8_t len = mrf.Receive((uint8_t *)data, maxLength); + uint8_t header[8]= {1, 8, 0, 0xA1, 0xB2, 0xC3, 0xD4, 0x00}; + + if(len > 10) { + //Remove the header and footer of the message + for(uint8_t i = 0; i < len-2; i++) { + if(i<8) { + //Make sure our header is valid first + if(data[i] != header[i]) + return 0; + } else { + data[i-8] = data[i]; + } + } + + //pc.printf("Received: %s length:%d\r\n", data, ((int)len)-10); + } + return ((int)len)-10; +} + +/** +* Send data to another MRF24J40. +* +* @param data The string to send +* @param maxLength The length of the data to send. +* If you are sending a null-terminated string you can pass strlen(data)+1 +*/ +void rf_send(char *data, uint8_t len) +{ + //We need to prepend the message with a valid ZigBee header + uint8_t header[8]= {1, 8, 0, 0xA1, 0xB2, 0xC3, 0xD4, 0x00}; + uint8_t *send_buf = (uint8_t *) malloc( sizeof(uint8_t) * (len+8) ); + + for(uint8_t i = 0; i < len+8; i++) { + //prepend the 8-byte header + send_buf[i] = (i<8) ? header[i] : data[i-8]; + } + //pc.printf("Sent: %s\r\n", send_buf+8); + + mrf.Send(send_buf, len+8); + free(send_buf); +} + + +//***************** You can start coding here *****************// +int main (void) +{ + + pc.printf("Press any key to Start!\n"); + pc.getc(); + pc.printf("Good luck...\n"); + + + uint8_t channel = 15; + + //Set the Channel. 0 is default, 15 is max + mrf.SetChannel(channel); + + //Start the timer + timer.start(); + + // seed rand num generator + srand(time(NULL)); + + while(true) { + //Try to receive some data + rxLen = rf_receive(rxBuffer, 128); + if(rxLen > 0) { + //Toggle the Led + led1 = led1^1; + pc.printf("Received: %s\r\n", rxBuffer); + + //if (strcmp(rxBuffer, "HIT")) { + total_time += timer.read_ms(); + send_new_mole = 1; + round++; + wait(0.5); + printf("Your current score = %d ms\r\n",total_time); + //} + + } + + if (round == 5) { + pc.printf("You hit 10 moles in %d seconds!\n",total_time); + pc.printf("Play again? (Y/N)\r\n"); + char answer = pc.getc(); + if (answer == 'N') { + exit (1); + } + else { + pc.printf("Good luck...\r\n"); + round = 0; + total_time = 0; + } + //exit(1); + } + + if (timer.read_ms() > timeout_ms) { + total_time += timer.read_ms(); + timer.reset(); + string msg2 = "T"; + //Add to the buffer. You may want to check out sprintf + strcpy(txBuffer, msg2.c_str()); + //Send the buffer + rf_send(txBuffer, strlen(txBuffer) + 1); + pc.printf("Sent: %s\r\n", txBuffer); + if (mole == 1) { + msg2 = "2"; + mole = 2; + } + else if (mole == 2) { + msg2 = "3"; + mole = 3; + } + else if (mole == 3) { + msg2 = "1"; + mole = 1; + } + //Add to the buffer. You may want to check out sprintf + strcpy(txBuffer, msg2.c_str()); + //Send the buffer + rf_send(txBuffer, strlen(txBuffer) + 1); + pc.printf("Sent: %s\r\n", txBuffer); + } + + //Send some data every second + if(send_new_mole) { + + send_new_mole = 0; + + //Reset the timer to 0 + timer.reset(); + + // get mole + string msg_out; + mole = get_mole(); + mole = 1; + if (mole == 1) msg_out = "1"; + if (mole == 2) msg_out = "2"; + if (mole == 3) msg_out = "3"; + led_update(mole); + + //Add to the buffer. You may want to check out sprintf + strcpy(txBuffer, msg_out.c_str()); + //Send the buffer + rf_send(txBuffer, strlen(txBuffer) + 1); + pc.printf("Sent: %s\r\n", txBuffer); + + } + } +} + +int get_mole() { + return rand()%3+1; +} + +void led_update(int i) { + led2 = 0; + led3 = 0; + led4 = 0; + if (i==1) led2 = 1; + if (i==2) led3 = 1; + if (i==3) led4 = 1; +}