Diff: main.cpp

Revision:

0:f4a1a7ba4cdc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Mar 12 15:00:59 2019 +0000
@@ -0,0 +1,133 @@
+#include "main.h"
+
+string readline_serial(){ //LO FANNO
+    string buffer = "";
+    
+    while(!expired){
+        if(pc.readable() > 0){
+            char c = pc.getc();
+            buffer = buffer + c;
+            if (c=='!'){
+                return buffer.substr(0, buffer.length()-1);
+            }
+        }
+    }
+    
+    expired = false;
+    return 0;
+    
+}
+
+string readline_questions(){ // LO MANTENGO
+    size_t pos = questions.find("!"); 
+    string buffer = questions.substr(0, pos);
+    read_questions += buffer;
+    questions = questions.substr(pos+1);
+    
+    return buffer;
+}
+
+void parse_line(string line, question_t *res){ //LO FANNO
+    int word = 0;
+    size_t i = 0;
+    string temp = "";
+    
+    for (word = 0; word < 5; word++){
+        size_t pos = line.find(";");
+        res[word].answer = line.substr(i, pos);
+        res[word].shown = 0;
+        line = line.substr(pos+1);
+            
+    }
+}
+
+void expired_timeout(){ //LO FANNO
+    expired = true;
+    timeout.detach(); 
+}
+
+void pressed(){ //LO FANNO
+    if (!answering) pc.printf(">>> GAME PAUSED FOR 30 seconds <<<\n\r");
+    
+    wait(30.0);
+    
+    pc.printf(">>> GAME RESUMED <<<\n\r");
+    
+}
+
+void toggling(){ //LO FANNO
+    while(answering){
+        led = !led;
+        wait(0.1);
+    }    
+}
+
+int main()
+{   
+    mybutton.fall(&pressed);
+    pc.printf("Welcome to IoTQuiz! Are you ready to play? When you are ready send !\n\r");
+    readline_serial();
+
+    pc.printf("How many players are there?\n\r");
+    number_of_participants = atoi(readline_serial().data());
+    
+    pc.printf("There are %d participants\n\r", number_of_participants);
+    int turn = 0;
+    int results[number_of_participants];
+    while (turn < TURN * number_of_participants){
+        
+        int participant = turn % number_of_participants;
+        if (turn < number_of_participants) results[participant] = 0; // properly initialization of results.
+        
+        pc.printf("It's the turn of player %d\n\r", participant);
+        wait(5.0);
+        
+        answering = true; //from now on no more pause
+        question_t parsed_line[5];
+        parse_line(readline_questions(), parsed_line);
+        pc.printf(">>> QUESTION: %s\n\r", parsed_line[0].answer.data());
+        parsed_line[0].shown = 1;
+        
+        //To order randomly the answers
+        int question_shown = 0;
+        while (question_shown < 4){
+                int i = rand() % 4 + 1;
+                if (parsed_line[i].shown == 0){
+                    pc.printf(">>> %d) %s\n\r", ++question_shown, parsed_line[i].answer.data());
+                    parsed_line[i].shown = 1;
+                    parsed_line[i].shown_as = question_shown;   
+                }
+        }
+        
+        pc.printf("\n\r>>> Select the correct answer, you have 10 seconds! (A number among 1 and 4)\n\r");
+        
+        //timeout starting
+        timeout.attach(&expired_timeout, 10.0);
+        Thread thread; //thread toggling led
+        thread.start(toggling); // starts
+        
+        int correct = atoi(readline_serial().data());
+        answering = false;
+        
+        //join the thread and detach the timeout
+        thread.join();
+        led = 0;
+        timeout.detach();
+        
+        if (correct == parsed_line[1].shown_as) {
+            results[participant] += 1;
+            pc.printf("\n\r>>>Right Answer!\n\r");
+        }
+        else{
+            pc.printf("\n\r>>> Wrong Answer or Time Expired!\n\r");
+        }
+    
+        turn +=1 ;
+        if (turn % number_of_participants == 0){
+            for (int i = 0; i<number_of_participants; i++){
+                pc.printf("\n\rPLAYER %d: %d points\n\r", i, results[i]);
+            }    
+        }
+    }
+    
+}