Diff: Car.cpp

Revision:

0:3b4906b8a747

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Car.cpp	Tue Dec 10 22:29:09 2019 +0000
@@ -0,0 +1,61 @@
+#include "Car.h"
+#include <stdlib.h>
+
+#define TICK 1000
+
+Car::Car(int id, Road* road, int flag) {
+    this->id = id;   
+    this->road = road;
+    this->flag = flag;
+    
+    cycle = 0;
+    
+    this->thread = NULL;
+}
+
+void Car::update() {
+    bool crossed = false;
+    while (true) {
+        ThisThread::sleep_for(TICK);
+        road->go_flags.wait_all(flag);
+        cycle++;
+        
+        position = position + speed;
+        
+        if (cycle % 5 == 0) {
+            speed = rand() % 11 + 5;
+        }
+        
+        if (position < 54) {
+            speed = std::min(speed, 54 - position);
+        } else if (!crossed && position == 54) {
+            speed = 0;
+            crossed = true;
+        } else if (position < 56) {
+            speed = 1;
+        }
+        
+        road->done_flags.set(flag);   
+    }
+}
+
+void Car::reset(int position, int speed) {
+    road->done_flags.clear(flag);
+    
+    if (thread != NULL) {
+        thread->terminate();   
+    }
+    
+    thread = new Thread();
+    thread->start( callback(this, &Car::update) );
+    
+    cycle = 0;
+    this->position = position;
+    this->speed = speed;
+}
+
+void Car::stop() {
+    if (thread != NULL) {
+        thread->terminate();   
+    } 
+}
\ No newline at end of file