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Totally Immersed: C++ Classes and Object-Oriented Programming
7: Airplane::Airplane(const char* _name, int _type) :
8: type(_type),
9: status(ONRAMP),
10: speed(0),
11: altitude(0),
12: heading(0)
13: {
14: switch (type) {
15: case AIRLINER : ceiling = 35000; break;
16: case COMMUTER : ceiling = 20000; break;
17: case PRIVATE : ceiling = 8000;
18: }
19: name = new char[50];
20: strcpy(name, _name);
21: }
22: //
23: // Destructor performs cleanup.
24: //
25: Airplane::~Airplane()
26: {
27: delete[] name;
28: }
29: //
30: // Gets a message from the user.
31: //
32: bool
33: Airplane::SendMessage(int msg, char* response,
34: int spd, int dir, int alt)
35: {
36: //
37: // Check for bad commands.
38: //
39: if (spd > 500) {
40: strcpy(response, “Speed cannot be more than 500.”);
41: return false;
42: }
43: if (dir > 360) {
44: strcpy(response, “Heading cannot be over 360 degrees.”);
45: return false;
46: }
47: if (alt < 100 && alt != -1) {
48: strcpy(response, “I’d crash, bonehead!”);
49: return false;
50: }
51: if (alt > ceiling) {
52: strcpy(response, “I can’t go that high.”);
53: return false;
54: }
55: //
56: // Do something base on which command was sent.
57: //
58: switch (msg) {
111
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