1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#ifndef MAGIC_EXPR_HPP
#define MAGIC_EXPR_HPP
#include "magic-interpreter.hpp"
/*
* Argument types:
* i : int
* d : dir
* s : string
* e : entity
* l : location
* a : area
* S : spell
* I : invocation
* . : any, except for fail/undef
* _ : any, including fail, but not undef
*/
struct fun_t
{
ZString name;
ZString signature;
char ret_ty;
int (*fun)(dumb_ptr<env_t> env, val_t *result, const_array<val_t> arga);
};
struct op_t
{
ZString name;
ZString signature;
int (*op)(dumb_ptr<env_t> env, const_array<val_t> arga);
};
/**
* Retrieves a function by name
* @param name The name to look up
* @return A function of that name, or NULL.
*/
fun_t *magic_get_fun(ZString name);
/**
* Retrieves an operation by name
* @param name The name to look up
* @return An operation of that name, or NULL, and a function index
*/
op_t *magic_get_op(ZString name);
/**
* Evaluates an expression and stores the result in `dest'
*/
void magic_eval(dumb_ptr<env_t> env, val_t *dest, dumb_ptr<expr_t> expr);
/**
* Evaluates an expression and coerces the result into an integer
*/
int magic_eval_int(dumb_ptr<env_t> env, dumb_ptr<expr_t> expr);
/**
* Evaluates an expression and coerces the result into a string
*/
FString magic_eval_str(dumb_ptr<env_t> env, dumb_ptr<expr_t> expr);
dumb_ptr<expr_t> magic_new_expr(EXPR ty);
void magic_clear_var(val_t *v);
void magic_copy_var(val_t *dest, val_t *src);
void magic_random_location(location_t *dest, dumb_ptr<area_t> area);
// ret -1: not a string, ret 1: no such item, ret 0: OK
int magic_find_item(const_array<val_t> args, int index, struct item *item, int *stackable);
#define GET_ARG_ITEM(index, dest, stackable) \
switch (magic_find_item(args, index, &dest, &stackable)) \
{ \
case -1: return 1; \
case 1: return 0; \
default: break; \
}
int magic_location_in_area(map_local *m, int x, int y, dumb_ptr<area_t> area);
#endif // MAGIC_EXPR_HPP
|
