summaryrefslogtreecommitdiff
path: root/src/ai/api/ai_error.cpp
blob: 4c21db726c98fe4b9a0893c89e9af06f15880084 (plain)
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
/* $Id$ */

/** @file ai_error.cpp Implementation of AIError. */

#include "ai_error.hpp"
#include "table/strings.h"
#include "../../core/bitmath_func.hpp"

AIError::AIErrorMap AIError::error_map = AIError::AIErrorMap();
AIError::AIErrorMapString AIError::error_map_string = AIError::AIErrorMapString();

/* static */ AIErrorType AIError::GetLastError()
{
	return AIObject::GetLastError();
}

/* static */ const char *AIError::GetLastErrorString()
{
	return (*error_map_string.find(AIError::GetLastError())).second;
}

/* static */ AIErrorType AIError::StringToError(StringID internal_string_id)
{
	uint index = GB(internal_string_id, 11, 5);
	switch (GB(internal_string_id, 11, 5)) {
		case 26: case 28: case 29: case 30: // NewGRF strings.
			return ERR_NEWGRF_SUPPLIED_ERROR;

		/* DO NOT SWAP case 14 and 4 because that will break StringToError due
		 * to the index dependency that relies on FALL THROUGHs. */
		case 14: if (index < 0xE4) break; // Player name
		case 4:  if (index < 0xC0) break; // Town name
		case 15: // Custom name
		case 31: // Dynamic strings
			/* These strings are 'random' and have no meaning.
			 * They actually shouldn't even be returned as error messages. */
			return ERR_UNKNOWN;

		default:
			break;
	}

	AIErrorMap::iterator it = error_map.find(internal_string_id);
	if (it == error_map.end()) return ERR_UNKNOWN;
	return (*it).second;
}

/* static */ void AIError::RegisterErrorMap(StringID internal_string_id, AIErrorType ai_error_msg)
{
	error_map[internal_string_id] = ai_error_msg;
}

/* static */ void AIError::RegisterErrorMapString(AIErrorType ai_error_msg, const char *message)
{
	error_map_string[ai_error_msg] = message;
}

/* static */ AIError::ErrorCategories AIError::GetErrorCategory() {
	return (AIError::ErrorCategories)(GetLastError() >> (uint)ERR_CAT_BIT_SIZE);
}