truebrain@9844: /* $Id$ */
truebrain@9844: 
truebrain@9849: /** @file ai_error.cpp Implementation of AIError. */
truebrain@9844: 
truebrain@9844: #include "ai_error.hpp"
truebrain@9844: #include "table/strings.h"
rubidium@9871: #include "../../core/bitmath_func.hpp"
truebrain@9844: 
truebrain@9844: AIError::AIErrorMap AIError::error_map = AIError::AIErrorMap();
truebrain@9844: AIError::AIErrorMapString AIError::error_map_string = AIError::AIErrorMapString();
truebrain@9844: 
rubidium@9864: /* static */ AIErrorType AIError::GetLastError()
truebrain@9844: {
rubidium@9863: 	return AIObject::GetLastError();
truebrain@9844: }
truebrain@9844: 
truebrain@9844: /* static */ const char *AIError::GetLastErrorString()
truebrain@9844: {
rubidium@9861: 	return (*error_map_string.find(AIError::GetLastError())).second;
truebrain@9844: }
truebrain@9844: 
rubidium@9864: /* static */ AIErrorType AIError::StringToError(StringID internal_string_id)
rubidium@9863: {
rubidium@9871: 	uint index = GB(internal_string_id, 11, 5);
rubidium@9871: 	switch (GB(internal_string_id, 11, 5)) {
rubidium@9871: 		case 26: case 28: case 29: case 30: // NewGRF strings.
rubidium@9871: 			return ERR_NEWGRF_SUPPLIED_ERROR;
rubidium@9871: 
rubidium@9871: 		/* DO NOT SWAP case 14 and 4 because that will break StringToError due
rubidium@9871: 		 * to the index dependency that relies on FALL THROUGHs. */
rubidium@9871: 		case 14: if (index < 0xE4) break; // Player name
rubidium@9871: 		case 4:  if (index < 0xC0) break; // Town name
rubidium@9871: 		case 15: // Custom name
rubidium@9871: 		case 31: // Dynamic strings
rubidium@9871: 			/* These strings are 'random' and have no meaning.
rubidium@9871: 			 * They actually shouldn't even be returned as error messages. */
rubidium@9871: 			return ERR_UNKNOWN;
rubidium@9871: 
rubidium@9871: 		default:
rubidium@9871: 			break;
rubidium@9871: 	}
rubidium@9871: 
rubidium@9863: 	AIErrorMap::iterator it = error_map.find(internal_string_id);
rubidium@9863: 	if (it == error_map.end()) return ERR_UNKNOWN;
rubidium@9863: 	return (*it).second;
rubidium@9863: }
rubidium@9863: 
rubidium@9864: /* static */ void AIError::RegisterErrorMap(StringID internal_string_id, AIErrorType ai_error_msg)
truebrain@9844: {
truebrain@9844: 	error_map[internal_string_id] = ai_error_msg;
truebrain@9844: }
truebrain@9844: 
rubidium@9864: /* static */ void AIError::RegisterErrorMapString(AIErrorType ai_error_msg, const char *message)
truebrain@9844: {
rubidium@9861: 	error_map_string[ai_error_msg] = message;
truebrain@9844: }
truebrain@9844: 
truebrain@9844: /* static */ AIError::ErrorCategories AIError::GetErrorCategory() {
truebrain@9844: 	return (AIError::ErrorCategories)(GetLastError() >> (uint)ERR_CAT_BIT_SIZE);
truebrain@9844: }