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Added amb466 - Random Sorting

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--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401923
This commit is contained in:
Matt Woodrow
2008-03-03 06:28:41 +00:00
parent 1f96e25121
commit 211b0159e5
3 changed files with 90 additions and 7 deletions
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core/smn_sorting.cpp
+61 -3
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@@ -86,8 +86,26 @@ enum SortOrder
{
Sort_Ascending = 0,
Sort_Descending = 1,
Sort_Random = 2,
};
void sort_random(cell_t *array, cell_t size)
{
srand((unsigned int)time(NULL));
for (int i = size-1; i > 0; i--)
{
int n = (rand() % i) + 1;
if (array[i] != array[n])
{
array[i] ^= array[n];
array[n] ^= array[i];
array[i] ^= array[n];
}
}
}
int sort_ints_asc(const void *int1, const void *int2)
{
return (*(int *)int1) - (*(int *)int2);
@@ -109,9 +127,15 @@ static cell_t sm_SortIntegers(IPluginContext *pContext, const cell_t *params)
if (type == Sort_Ascending)
{
qsort(array, array_size, sizeof(cell_t), sort_ints_asc);
} else {
}
else if (type == Sort_Descending)
{
qsort(array, array_size, sizeof(cell_t), sort_ints_desc);
}
else
{
sort_random(array, array_size);
}
return 1;
}
@@ -157,9 +181,15 @@ static cell_t sm_SortFloats(IPluginContext *pContext, const cell_t *params)
if (type == Sort_Ascending)
{
qsort(array, array_size, sizeof(cell_t), sort_floats_asc);
} else {
}
else if (type == Sort_Descending)
{
qsort(array, array_size, sizeof(cell_t), sort_floats_desc);
}
else
{
sort_random(array, array_size);
}
return 1;
}
@@ -217,9 +247,15 @@ static cell_t sm_SortStrings(IPluginContext *pContext, const cell_t *params)
if (type == Sort_Ascending)
{
qsort(array, array_size, sizeof(cell_t), sort_strings_asc);
} else {
}
else if (type == Sort_Descending)
{
qsort(array, array_size, sizeof(cell_t), sort_strings_desc);
}
else
{
sort_random(array, array_size);
}
/* END HACKHACK - restore what we damaged so Pawn doesn't throw up.
* We'll browse through each index of the array and patch up the distance.
@@ -392,6 +428,20 @@ int sort_adtarray_strings_desc(const void *str1, const void *str2)
return strcmp((char *) str2, (char *) str1);
}
void sort_adt_random(CellArray *cArray)
{
size_t arraysize = cArray->size();
srand((unsigned int)time(NULL));
for (int i = arraysize-1; i > 0; i--)
{
int n = (rand() % i) + 1;
cArray->swap(i, n);
}
}
static cell_t sm_SortADTArray(IPluginContext *pContext, const cell_t *params)
{
CellArray *cArray;
@@ -405,6 +455,14 @@ static cell_t sm_SortADTArray(IPluginContext *pContext, const cell_t *params)
}
cell_t order = params[2];
if (order == Sort_Random)
{
sort_adt_random(cArray);
return 1;
}
cell_t type = params[3];
size_t arraysize = cArray->size();
size_t blocksize = cArray->blocksize();