1 #include <stdio.h>
2 #include <stdlib.h>
3 
4 #include "adventure.h"
5 
6 int
7 move_object(struct param *par, struct object *from, struct object *to)
8 {
9 	struct object *obj = par->object;
10 	enum distance dist = par->distance;
11 
12 	if (obj == NULL || dist == dist_unknown_obj || dist == dist_not_here)
13 		printf("I don't understand what item you mean.\n");
14 	else if (to == NULL)
15 		printf("There is nobody here to give that to.\n");
16 	else if (obj == to)
17 		printf("What's the meaning of putting a %s inside itself?\n",
18 			par->tag);
19 	else if (from != obj->location) {
20 		/* give the appropriate error message */
21 		switch (dist) {
22 		case dist_player:
23 			printf("You should not be doing that to yourself.\n");
24 			break;
25 
26 		case dist_held:
27 			printf("You already have %s.\n", obj->description);
28 			break;
29 
30 		case dist_location:
31 		case dist_overthere:
32 			printf("That's not an item.\n");
33 			break;
34 
35 		case dist_here:
36 			if (from == player)
37 				printf("You have no %s.\n", par->tag);
38 			else
39 				printf("Sorry, %s has no %s.\n",
40 					from->description, par->tag);
41 			break;
42 
43 		case dist_held_contained:
44 		case dist_here_contained:
45 			printf("Sorry, %s is holding it.\n",
46 				obj->location->description);
47 			break;
48 
49 		default:
50 			/* we should have handled all other cases
51 			 * before this point */
52 			abort();
53 		}
54 	} else if (obj->weight > to->capacity) {
55 		printf("That is way too heavy.\n");
56 	} else if (obj->weight + weight_of_contents(to) > to->capacity) {
57 		printf("That would becamo too heavy.\n");
58 	} else {
59 		obj->location = to;
60 		printf("OK.\n");
61 	}
62 
63 	return 1;
64 }