added some functions

car.c

@@ -13,3 +13,31 @@ Car get_car(CarType carType) {
     Car car = {carType, RED, 0.0, 0.0, 0};
     return car;
 }
+
+CarType get_type(Car car) {
+    return car->type;
+}
+
+Color get_color(Car car) {
+    return car->color;
+}
+
+double get_fill_level(Car car) {
+    return car->fill_level;
+}
+
+double get_acceleration_rate(Car car) {
+    return car->acceleration_rate;
+}
+
+int get_speed(Car car) {
+    return car->speed;
+}
+
+void set_acceleration_rate(Car car, double acceleration_rate) {
+    car->acceleration_rate = acceleration_rate;
+}
+
+void accelerate(Car car) {
+    car->speed += 4;
+}