paysages : Terrain painting improvements (WIP).
git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@551 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
This commit is contained in:
ThunderK
parent
3e14fedbca
commit
82d291d903
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@ -1,22 +0,0 @@
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#ifndef _PAYSAGES_ARRAY_H_
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#define _PAYSAGES_ARRAY_H_
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#include "shared/types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void arrayCreate(Array* array, int item_size);
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void arrayDelete(Array* array);
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void* arrayAppend(Array* array, void* item);
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void arrayInsert(Array* array, void* item, int position);
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void arrayReplace(Array* array, void* item, int position);
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void arrayLStrip(Array* array, int count);
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void arrayClear(Array* array);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -10,15 +10,6 @@ extern "C" {
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typedef struct Renderer Renderer;
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typedef struct
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{
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int length;
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int alloc_length;
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int item_size;
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int dirty;
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void* data;
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} Array;
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typedef struct
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{
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int hit;
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@ -10,6 +10,226 @@
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#include <math.h>
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#include "../tools/memory.h"
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#include "../tools.h"
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#include "../tools/array.h"
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typedef struct
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{
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int xstart;
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int xend;
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double* height;
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} HeightMapPixelGroup;
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typedef struct
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{
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int z;
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int memsize;
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int pixel_groups_count;
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HeightMapPixelGroup* pixel_groups;
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} HeightMapRow;
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typedef struct
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{
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int memsize;
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int rows_count;
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HeightMapRow* rows;
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} HeightMapData;
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struct TerrainHeightMap
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{
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TerrainDefinition* terrain;
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HeightMapData merged_data;
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HeightMapData brush_data;
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};
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static void _initData(HeightMapData* data)
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{
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data->rows_count = 0;
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data->rows = malloc(1);
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}
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static void _clearData(HeightMapData* data)
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{
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int i, j;
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for (i = 0; i < data->rows_count; i++)
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{
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for (j = 0; j < data->rows[i].pixel_groups_count; j++)
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{
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free(data->rows[i].pixel_groups[j].height);
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}
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free(data->rows[i].pixel_groups);
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}
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data->rows_count = 0;
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data->rows = realloc(data->rows, 1);
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}
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static void _deleteData(HeightMapData* data)
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{
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_clearData(data);
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free(data->rows);
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}
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static void _copyData(HeightMapData* source, HeightMapData* destination)
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{
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_clearData(destination);
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/* TODO */
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}
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static void _saveData(PackStream* stream, HeightMapData* data)
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{
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int i, j, k;
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packWriteInt(stream, &data->rows_count);
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for (i = 0; i < data->rows_count; i++)
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{
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packWriteInt(stream, &data->rows[i].z);
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packWriteInt(stream, &data->rows[i].pixel_groups_count);
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for (j = 0; j < data->rows[i].pixel_groups_count; j++)
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{
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packWriteInt(stream, &data->rows[i].pixel_groups[j].xstart);
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packWriteInt(stream, &data->rows[i].pixel_groups[j].xend);
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for (k = 0; k < data->rows[i].pixel_groups[j].xend - data->rows[i].pixel_groups[j].xstart; k++)
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{
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packWriteDouble(stream, &data->rows[i].pixel_groups[j].height[k]);
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}
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}
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}
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}
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static void _loadData(PackStream* stream, HeightMapData* data)
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{
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int i, j, k, n;
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_clearData(data);
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packReadInt(stream, &data->rows_count);
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data->rows = realloc(data->rows, sizeof(HeightMapRow) * data->rows_count);
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for (i = 0; i < data->rows_count; i++)
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{
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packReadInt(stream, &data->rows[i].z);
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packReadInt(stream, &data->rows[i].pixel_groups_count);
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data->rows[i].pixel_groups = malloc(sizeof(HeightMapPixelGroup) * data->rows[i].pixel_groups_count);
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for (j = 0; j < data->rows[i].pixel_groups_count; j++)
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{
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packReadInt(stream, &data->rows[i].pixel_groups[j].xstart);
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packReadInt(stream, &data->rows[i].pixel_groups[j].xend);
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n = data->rows[i].pixel_groups[j].xend - data->rows[i].pixel_groups[j].xstart;
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data->rows[i].pixel_groups[j].height = malloc(sizeof(double) * n);
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for (k = 0; k < n; k++)
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{
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packReadDouble(stream, &data->rows[i].pixel_groups[j].height[k]);
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}
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}
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}
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}
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/*
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* Get a pointer to the data in a heightmap, to a certain location.
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* If the location is not already in the heightmap, it is initialized with the terrain height.
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* This method will grow the heightmap as necessary (if 'grow' is set to false, NULL will be returned on missing pixels).
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*/
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static double* _getDataPointer(HeightMapData* data, int x, int z, TerrainDefinition* terrain, int grow)
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{
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int i;
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/* Find row */
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/* TODO Dichotomic search */
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HeightMapRow* row;
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i = 0;
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while (i < data->rows_count && data->rows[i].z < z)
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{
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i++;
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}
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if (i < data->rows_count && data->rows[i].z == z)
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{
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row = data->rows + i;
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}
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else if (grow)
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{
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row = naiveArrayInsert((void**)&data->rows, sizeof(HeightMapRow), data->rows_count, i);
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row->z = z;
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row->pixel_groups_count = 0;
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row->pixel_groups = malloc(1);
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data->rows_count++;
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}
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else
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{
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return NULL;
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}
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/* Find pixel group */
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HeightMapPixelGroup* pixel_group = NULL;
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for (i = 0; i < row->pixel_groups_count; i++)
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{
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if (x < row->pixel_groups[i].xstart - 1)
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{
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break;
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}
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if (x >= row->pixel_groups[i].xstart - 1 && x <= row->pixel_groups[i].xend + 1)
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{
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pixel_group = row->pixel_groups + i;
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}
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}
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/* Alter pixel group */
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double* pixel;
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int added = 1;
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if (!pixel_group)
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{
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if (!grow)
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{
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return NULL;
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}
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/* Create the pixel group with one pixel */
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pixel_group = naiveArrayInsert((void**)&row->pixel_groups, sizeof(HeightMapPixelGroup), row->pixel_groups_count, i);
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pixel_group->xstart = x;
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pixel_group->xend = x;
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pixel_group->height = malloc(sizeof(double));
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pixel = pixel_group->height;
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row->pixel_groups_count++;
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}
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else if (x == pixel_group->xstart - 1)
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{
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if (!grow)
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{
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return NULL;
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}
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/* Extend the rowgroup at start */
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pixel_group->xstart--;
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pixel = naiveArrayInsert((void**)&pixel_group->height, sizeof(double), pixel_group->xend - pixel_group->xstart, 0);
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}
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else if (x == pixel_group->xend + 1)
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{
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if (!grow)
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{
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return NULL;
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}
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/* Extend the rowgroup at end */
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pixel_group->xend++;
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pixel = naiveArrayInsert((void**)&pixel_group->height, sizeof(double), pixel_group->xend - pixel_group->xstart, pixel_group->xend - pixel_group->xstart);
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}
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else
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{
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assert(x >= pixel_group->xstart);
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assert(x <= pixel_group->xend);
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pixel = pixel_group->height + x - pixel_group->xstart;
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added = 0;
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}
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/* Reset pixel if it had been added */
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if (added && terrain)
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{
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*pixel = terrainGetGridHeight(terrain, x, z, 0);
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}
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return pixel;
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}
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TerrainHeightMap* terrainHeightMapCreate(TerrainDefinition* terrain)
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{
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@ -17,134 +237,41 @@ TerrainHeightMap* terrainHeightMapCreate(TerrainDefinition* terrain)
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result = malloc(sizeof(TerrainHeightMap));
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result->terrain = terrain;
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result->fixed_count = 0;
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result->fixed_data = malloc(sizeof(TerrainHeightMapChunk));
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result->floating_used = 0;
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result->floating_data.data = malloc(sizeof(double));
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_initData(&result->merged_data);
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_initData(&result->brush_data);
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return result;
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}
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void terrainHeightmapDelete(TerrainHeightMap* heightmap)
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{
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int i;
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for (i = 0; i < heightmap->fixed_count; i++)
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{
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free(heightmap->fixed_data[i].data);
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}
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free(heightmap->fixed_data);
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free(heightmap->floating_data.data);
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_deleteData(&heightmap->merged_data);
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_deleteData(&heightmap->brush_data);
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free(heightmap);
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}
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static void _setFixedCount(TerrainHeightMap* heightmap, int new_count)
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{
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int old_count = heightmap->fixed_count;
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int i;
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if (new_count > old_count)
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{
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heightmap->fixed_data = realloc(heightmap->fixed_data, sizeof(TerrainHeightMapChunk) * new_count);
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for (i = old_count; i < new_count; i++)
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{
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heightmap->fixed_data[i].data = malloc(sizeof(double));
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}
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}
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else if (new_count < old_count)
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{
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for (i = new_count; i < old_count; i++)
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{
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free(heightmap->fixed_data[i].data);
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}
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if (new_count > 0)
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{
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heightmap->fixed_data = realloc(heightmap->fixed_data, sizeof(TerrainHeightMapChunk) * new_count);
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}
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}
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heightmap->fixed_count = new_count;
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}
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void terrainHeightmapCopy(TerrainHeightMap* source, TerrainHeightMap* destination)
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{
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int i;
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destination->terrain = source->terrain;
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_setFixedCount(destination, source->fixed_count);
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for (i = 0; i < destination->fixed_count; i++)
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{
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TerrainHeightMapChunk* chunk_source = source->fixed_data + i;
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TerrainHeightMapChunk* chunk_destination = destination->fixed_data + i;
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size_t mapsize = sizeof(double) * chunk_source->rect.xsize * chunk_source->rect.zsize;
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chunk_destination->rect = chunk_source->rect;
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if (chunk_source->rect.xsize * chunk_source->rect.zsize > 0)
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{
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chunk_destination->data = realloc(chunk_destination->data, mapsize);
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memcpy(chunk_destination->data, chunk_source->data, mapsize);
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}
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}
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destination->floating_used = 0;
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_copyData(&source->merged_data, &destination->merged_data);
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_clearData(&destination->brush_data);
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}
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void terrainHeightmapSave(PackStream* stream, TerrainHeightMap* heightmap)
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{
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int i, j;
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packWriteInt(stream, &heightmap->fixed_count);
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for (i = 0; i < heightmap->fixed_count; i++)
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{
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TerrainHeightMapChunk* chunk = heightmap->fixed_data + i;
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packWriteInt(stream, &chunk->rect.xstart);
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packWriteInt(stream, &chunk->rect.xend);
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packWriteInt(stream, &chunk->rect.xsize);
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packWriteInt(stream, &chunk->rect.zstart);
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packWriteInt(stream, &chunk->rect.zend);
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packWriteInt(stream, &chunk->rect.zsize);
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for (j = 0; j < chunk->rect.xsize * chunk->rect.zsize; j++)
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{
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packWriteDouble(stream, &chunk->data[j]);
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}
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}
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_saveData(stream, &heightmap->merged_data);
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}
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void terrainHeightmapLoad(PackStream* stream, TerrainHeightMap* heightmap)
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{
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int new_count, i, j;
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packReadInt(stream, &new_count);
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_setFixedCount(heightmap, new_count);
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for (i = 0; i < heightmap->fixed_count; i++)
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{
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TerrainHeightMapChunk* chunk = heightmap->fixed_data + i;
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packReadInt(stream, &chunk->rect.xstart);
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packReadInt(stream, &chunk->rect.xend);
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packReadInt(stream, &chunk->rect.xsize);
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packReadInt(stream, &chunk->rect.zstart);
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packReadInt(stream, &chunk->rect.zend);
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packReadInt(stream, &chunk->rect.zsize);
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if (chunk->rect.xsize * chunk->rect.zsize > 0)
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{
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chunk->data = realloc(chunk->data, sizeof(double) * chunk->rect.xsize * chunk->rect.zsize);
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}
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for (j = 0; j < chunk->rect.xsize * chunk->rect.zsize; j++)
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{
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packReadDouble(stream, &chunk->data[j]);
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}
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}
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heightmap->floating_used = 0;
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_loadData(stream, &heightmap->merged_data);
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_clearData(&heightmap->brush_data);
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}
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static inline int _checkDataHit(TerrainHeightMapChunk* chunk, double x, double z, double* result)
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static inline int _getInterpolatedValue(HeightMapData* data, double x, double z, double* result, TerrainDefinition* terrain)
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{
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if ((int)floor(x) >= chunk->rect.xstart && (int)floor(x) <= chunk->rect.xend && (int)floor(z) >= (double)chunk->rect.zstart && (int)floor(z) <= (double)chunk->rect.zend)
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/*if ((int)floor(x) >= chunk->rect.xstart && (int)floor(x) <= chunk->rect.xend && (int)floor(z) >= (double)chunk->rect.zstart && (int)floor(z) <= (double)chunk->rect.zend)
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{
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double stencil[16];
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int ix, iz, cx, cz;
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@ -171,62 +298,24 @@ static inline int _checkDataHit(TerrainHeightMapChunk* chunk, double x, double z
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}
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}
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*result = toolsBicubicInterpolate(stencil, x - (double)xlow, z - (double)zlow);
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if (result)
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{
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*result = toolsBicubicInterpolate(stencil, x - (double)xlow, z - (double)zlow);
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}
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return 1;
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}
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else
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{
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return 0;
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}
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}*/
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return 0;
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}
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int terrainHeightmapGetHeight(TerrainHeightMap* heightmap, double x, double z, double* result)
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{
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int i;
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if (heightmap->floating_used && _checkDataHit(&heightmap->floating_data, x, z, result))
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{
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return 1;
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}
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else
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{
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for (i = heightmap->fixed_count - 1; i >= 0; i--)
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{
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if (_checkDataHit(heightmap->fixed_data + i, x, z, result))
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{
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return 1;
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}
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}
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return 0;
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}
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}
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static inline void _resetRect(TerrainHeightMap* heightmap, int x1, int x2, int z1, int z2)
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{
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int i, x, z;
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double result;
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for (x = x1; x <= x2; x++)
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{
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for (z = z1; z <= z2; z++)
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{
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/* Search for a previous fixed chunk */
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for (i = heightmap->fixed_count - 1; i >= 0; i--)
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{
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if (_checkDataHit(heightmap->fixed_data + i, x + heightmap->floating_data.rect.xstart, z + heightmap->floating_data.rect.zstart, &result))
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{
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heightmap->floating_data.data[z * heightmap->floating_data.rect.xsize + x] = result;
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break;
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}
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}
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if (i < 0)
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{
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/* No fixed chunk found */
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heightmap->floating_data.data[z * heightmap->floating_data.rect.xsize + x] = terrainGetGridHeight(heightmap->terrain, x + heightmap->floating_data.rect.xstart, z + heightmap->floating_data.rect.zstart, 0);
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}
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}
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}
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/* TODO */
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return 0;
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}
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static inline IntegerRect _getBrushRect(TerrainBrush* brush)
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@ -250,90 +339,27 @@ static inline int _isInRect(IntegerRect rect, int x, int z)
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return (x >= rect.xstart && x <= rect.xend && z >= rect.zstart && z <= rect.zend);
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}
|
||||
|
||||
static void _prepareBrushStroke(TerrainHeightMap* heightmap, TerrainBrush* brush)
|
||||
{
|
||||
IntegerRect brush_rect = _getBrushRect(brush);
|
||||
|
||||
/* Prepare floating data */
|
||||
if (heightmap->floating_used)
|
||||
{
|
||||
int gx1 = (brush_rect.xstart < heightmap->floating_data.rect.xstart) ? heightmap->floating_data.rect.xstart - brush_rect.xstart : 0;
|
||||
int gx2 = (brush_rect.xend > heightmap->floating_data.rect.xend) ? brush_rect.xend - heightmap->floating_data.rect.xend : 0;
|
||||
int gz1 = (brush_rect.zstart < heightmap->floating_data.rect.zstart) ? heightmap->floating_data.rect.zstart - brush_rect.zstart : 0;
|
||||
int gz2 = (brush_rect.zend > heightmap->floating_data.rect.zend) ? brush_rect.zend - heightmap->floating_data.rect.zend : 0;
|
||||
if (gx1 || gx2 || gz1 || gz2)
|
||||
{
|
||||
/* Floating area needs growing */
|
||||
int new_width = heightmap->floating_data.rect.xsize + gx1 + gx2;
|
||||
int new_height = heightmap->floating_data.rect.zsize + gz1 + gz2;
|
||||
|
||||
heightmap->floating_data.data = memory2dRealloc(heightmap->floating_data.data, sizeof(double), heightmap->floating_data.rect.xsize, heightmap->floating_data.rect.zsize, new_width, new_height, gx1, gz1);
|
||||
|
||||
heightmap->floating_data.rect.xstart -= gx1;
|
||||
heightmap->floating_data.rect.xend += gx2;
|
||||
heightmap->floating_data.rect.xsize += gx1 + gx2;
|
||||
heightmap->floating_data.rect.zstart -= gz1;
|
||||
heightmap->floating_data.rect.zend += gz2;
|
||||
heightmap->floating_data.rect.zsize += gz1 + gz2;
|
||||
|
||||
_resetRect(heightmap, 0, new_width - 1, 0, gz1 - 1);
|
||||
_resetRect(heightmap, 0, new_width - 1, new_height - gz2, new_height - 1);
|
||||
_resetRect(heightmap, 0, gx1 - 1, gz1, new_height - 1 - gz2);
|
||||
_resetRect(heightmap, new_width - gx2, new_width - 1, gz1, new_height - 1 - gz2);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Init floating area */
|
||||
heightmap->floating_data.rect = brush_rect;
|
||||
|
||||
size_t new_size;
|
||||
new_size = sizeof(double) * brush_rect.xsize * brush_rect.zsize;
|
||||
heightmap->floating_data.data = realloc(heightmap->floating_data.data, new_size);
|
||||
|
||||
_resetRect(heightmap, 0, brush_rect.xsize - 1, 0, brush_rect.zsize - 1);
|
||||
|
||||
heightmap->floating_used = 1;
|
||||
}
|
||||
}
|
||||
|
||||
size_t terrainGetMemoryStats(TerrainDefinition* definition)
|
||||
{
|
||||
TerrainHeightMap* heightmap = definition->height_map;
|
||||
size_t result = 0;
|
||||
int i;
|
||||
|
||||
if (heightmap->floating_used)
|
||||
/*if (heightmap->floating_used)
|
||||
{
|
||||
result += sizeof(double) * heightmap->floating_data.rect.xsize * heightmap->floating_data.rect.zsize;
|
||||
}
|
||||
for (i = 0; i < heightmap->fixed_count; i++)
|
||||
{
|
||||
result += sizeof(double) * heightmap->fixed_data[i].rect.xsize * heightmap->fixed_data[i].rect.zsize;
|
||||
}
|
||||
}*/
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
int terrainIsPainted(TerrainHeightMap* heightmap, int x, int z)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (heightmap->floating_used && _isInRect(heightmap->floating_data.rect, x, z))
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
for (i = 0; i < heightmap->fixed_count; i++)
|
||||
{
|
||||
if (_isInRect(heightmap->fixed_data[i].rect, x, z))
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
return _getDataPointer(&heightmap->brush_data, x, z, NULL, 0) || _getDataPointer(&heightmap->merged_data, x, z, NULL, 0);
|
||||
}
|
||||
|
||||
typedef double (*BrushCallback)(TerrainHeightMap* heightmap, TerrainBrush* brush, double x, double z, double basevalue, double influence, double force, void* data);
|
||||
|
|
@ -344,42 +370,32 @@ static inline void _applyBrush(TerrainHeightMap* heightmap, TerrainBrush* brush,
|
|||
int x, z;
|
||||
double dx, dz, distance, influence;
|
||||
|
||||
if (!heightmap->floating_used)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
for (x = brush_rect.xstart; x <= brush_rect.xend; x++)
|
||||
{
|
||||
dx = (double)x;
|
||||
for (z = brush_rect.zstart; z <= brush_rect.zend; z++)
|
||||
{
|
||||
if (_isInRect(heightmap->floating_data.rect, x, z)) /* TODO Rect intersection */
|
||||
{
|
||||
dz = (double)z;
|
||||
distance = sqrt((brush->relative_x - dx) * (brush->relative_x - dx) + (brush->relative_z - dz) * (brush->relative_z - dz));
|
||||
dz = (double)z;
|
||||
distance = sqrt((brush->relative_x - dx) * (brush->relative_x - dx) + (brush->relative_z - dz) * (brush->relative_z - dz));
|
||||
|
||||
if (distance > brush->hard_radius)
|
||||
if (distance > brush->hard_radius)
|
||||
{
|
||||
if (distance <= brush->hard_radius + brush->smoothed_size)
|
||||
{
|
||||
if (distance <= brush->hard_radius + brush->smoothed_size)
|
||||
{
|
||||
influence = (1.0 - (distance - brush->hard_radius) / brush->smoothed_size);
|
||||
}
|
||||
else
|
||||
{
|
||||
continue;
|
||||
}
|
||||
influence = (1.0 - (distance - brush->hard_radius) / brush->smoothed_size);
|
||||
}
|
||||
else
|
||||
{
|
||||
influence = 1.0;
|
||||
continue;
|
||||
}
|
||||
|
||||
int ix = x - heightmap->floating_data.rect.xstart;
|
||||
int iz = z - heightmap->floating_data.rect.zstart;
|
||||
double base_value = heightmap->floating_data.data[iz * heightmap->floating_data.rect.xsize + ix];
|
||||
heightmap->floating_data.data[iz * heightmap->floating_data.rect.xsize + ix] = callback(heightmap, brush, dx, dz, base_value, influence, force, data);
|
||||
}
|
||||
else
|
||||
{
|
||||
influence = 1.0;
|
||||
}
|
||||
|
||||
double* dpointer = _getDataPointer(&heightmap->brush_data, x, z, heightmap->terrain, 1);
|
||||
*dpointer = callback(heightmap, brush, dx, dz, *dpointer, influence, force, data);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -387,18 +403,23 @@ static inline void _applyBrush(TerrainHeightMap* heightmap, TerrainBrush* brush,
|
|||
static double _applyBrushElevation(TerrainHeightMap* heightmap, TerrainBrush* brush, double x, double z, double basevalue, double influence, double force, void* data)
|
||||
{
|
||||
UNUSED(heightmap);
|
||||
UNUSED(brush);
|
||||
UNUSED(data);
|
||||
UNUSED(x);
|
||||
UNUSED(z);
|
||||
|
||||
return basevalue + influence * force;
|
||||
}
|
||||
|
||||
void terrainBrushElevation(TerrainHeightMap* heightmap, TerrainBrush* brush, double value)
|
||||
{
|
||||
_prepareBrushStroke(heightmap, brush);
|
||||
_applyBrush(heightmap, brush, value, NULL, _applyBrushElevation);
|
||||
}
|
||||
|
||||
static double _applyBrushSmooth(TerrainHeightMap* heightmap, TerrainBrush* brush, double x, double z, double basevalue, double influence, double force, void* data)
|
||||
{
|
||||
UNUSED(data);
|
||||
|
||||
double ideal, factor;
|
||||
ideal = terrainGetInterpolatedHeight(heightmap->terrain, x + brush->total_radius * 0.5, z, 1);
|
||||
ideal += terrainGetInterpolatedHeight(heightmap->terrain, x - brush->total_radius * 0.5, z, 1);
|
||||
|
|
@ -415,19 +436,18 @@ static double _applyBrushSmooth(TerrainHeightMap* heightmap, TerrainBrush* brush
|
|||
|
||||
void terrainBrushSmooth(TerrainHeightMap* heightmap, TerrainBrush* brush, double value)
|
||||
{
|
||||
_prepareBrushStroke(heightmap, brush);
|
||||
_applyBrush(heightmap, brush, value, NULL, _applyBrushSmooth);
|
||||
}
|
||||
|
||||
static double _applyBrushAddNoise(TerrainHeightMap* heightmap, TerrainBrush* brush, double x, double z, double basevalue, double influence, double force, void* data)
|
||||
{
|
||||
UNUSED(heightmap);
|
||||
|
||||
return basevalue + noiseGet2DTotal((NoiseGenerator*)data, x / brush->total_radius, z / brush->total_radius) * influence * force * brush->total_radius;
|
||||
}
|
||||
|
||||
void terrainBrushAddNoise(TerrainHeightMap* heightmap, TerrainBrush* brush, NoiseGenerator* generator, double value)
|
||||
{
|
||||
_prepareBrushStroke(heightmap, brush);
|
||||
_applyBrush(heightmap, brush, value, generator, _applyBrushAddNoise);
|
||||
}
|
||||
|
||||
|
|
@ -442,26 +462,10 @@ static double _applyBrushReset(TerrainHeightMap* heightmap, TerrainBrush* brush,
|
|||
|
||||
void terrainBrushReset(TerrainHeightMap* heightmap, TerrainBrush* brush, double value)
|
||||
{
|
||||
_prepareBrushStroke(heightmap, brush);
|
||||
_applyBrush(heightmap, brush, value, NULL, _applyBrushReset);
|
||||
}
|
||||
|
||||
void terrainEndBrushStroke(TerrainHeightMap* heightmap)
|
||||
{
|
||||
/* Commit floating data to fixed */
|
||||
if (heightmap->floating_used)
|
||||
{
|
||||
/* TODO Find overlapping data and merge with them */
|
||||
|
||||
size_t mapsize = sizeof(double) * heightmap->floating_data.rect.xsize * heightmap->floating_data.rect.zsize;
|
||||
heightmap->fixed_data = realloc(heightmap->fixed_data, sizeof(TerrainHeightMapChunk) * (heightmap->fixed_count + 1));
|
||||
heightmap->fixed_data[heightmap->fixed_count].rect = heightmap->floating_data.rect;
|
||||
heightmap->fixed_data[heightmap->fixed_count].data = malloc(mapsize);
|
||||
memcpy(heightmap->fixed_data[heightmap->fixed_count].data, heightmap->floating_data.data, mapsize);
|
||||
|
||||
heightmap->fixed_count++;
|
||||
|
||||
heightmap->floating_used = 0;
|
||||
heightmap->floating_data.data = realloc(heightmap->floating_data.data, sizeof(double));
|
||||
}
|
||||
/* TODO Merge data */
|
||||
}
|
||||
|
|
|
|||
|
|
@ -13,21 +13,6 @@ typedef struct
|
|||
int zsize;
|
||||
} IntegerRect;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
IntegerRect rect;
|
||||
double* data;
|
||||
} TerrainHeightMapChunk;
|
||||
|
||||
struct TerrainHeightMap
|
||||
{
|
||||
TerrainDefinition* terrain;
|
||||
int fixed_count;
|
||||
TerrainHeightMapChunk* fixed_data;
|
||||
int floating_used;
|
||||
TerrainHeightMapChunk floating_data;
|
||||
};
|
||||
|
||||
TerrainHeightMap* terrainHeightMapCreate(TerrainDefinition* definition);
|
||||
void terrainHeightmapDelete(TerrainHeightMap* heightmap);
|
||||
void terrainHeightmapCopy(TerrainHeightMap* source, TerrainHeightMap* destination);
|
||||
|
|
|
|||
|
|
@ -1,8 +1,23 @@
|
|||
#include "array.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
void* naiveArrayInsert(void** array, size_t item_size, int item_count, int location)
|
||||
{
|
||||
assert(location >= 0);
|
||||
assert(location <= item_count);
|
||||
|
||||
*array = realloc(*array, item_size * (item_count + 1));
|
||||
if (location < item_count)
|
||||
{
|
||||
memmove(*array + item_size * (location + 1), *array + item_size * location, item_size * (item_count - location));
|
||||
}
|
||||
|
||||
return *array + item_size * location;
|
||||
}
|
||||
|
||||
void arrayCreate(Array* array, int item_size)
|
||||
{
|
||||
array->length = 0;
|
||||
41
lib_paysages/tools/array.h
Normal file
41
lib_paysages/tools/array.h
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
#ifndef _PAYSAGES_TOOLS_ARRAY_H_
|
||||
#define _PAYSAGES_TOOLS_ARRAY_H_
|
||||
|
||||
#include "../shared/types.h"
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**************** Naive methods (basic C arrays) ****************/
|
||||
|
||||
/*
|
||||
* Insert an item at a given position, rallocating the array, moving data and returning a pointer to the inserted element.
|
||||
*/
|
||||
void* naiveArrayInsert(void** array, size_t item_size, int item_count, int location);
|
||||
|
||||
/**************** Array object ****************/
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int length;
|
||||
int alloc_length;
|
||||
int item_size;
|
||||
int dirty;
|
||||
void* data;
|
||||
} Array;
|
||||
|
||||
void arrayCreate(Array* array, int item_size);
|
||||
void arrayDelete(Array* array);
|
||||
void* arrayAppend(Array* array, void* item);
|
||||
void arrayInsert(Array* array, void* item, int position);
|
||||
void arrayReplace(Array* array, void* item, int position);
|
||||
void arrayLStrip(Array* array, int count);
|
||||
void arrayClear(Array* array);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue