2998d2a8f3
This can come in handy, to author physics data for Bullet from Blender, and directly get the physics data straight from the .blend file Thanks a lot to Adam D. Moss, to digg up this code and make it available under the MIT license It was mentioned several years ago in this thread: http://archives.seul.org/linuxgames/Apr-2005/msg00002.html
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include "abs-file.h"
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#include "readblend.h"
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void crawl(BlendFile* blend_file,
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BlendObject obj)
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{
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BlendObject data_obj;
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if (blend_object_structure_getfield(blend_file, &data_obj, obj, "totvert")) {
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if (blend_object_type(blend_file, data_obj) == BLEND_OBJ_LONG32) {
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long data1 = 123456;
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if (blend_object_getdata(blend_file, &data1, data_obj)) {
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fprintf(stderr, "TOTVERT=(%ld) ", data1);
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} else {
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fprintf(stderr, "FETCH ERROR\n");
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}
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}
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}
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if (blend_object_structure_getfield(blend_file, &data_obj, obj, "co")) {
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if (blend_object_type(blend_file, data_obj) == BLEND_OBJ_FLOAT) {
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float data1 = 123456.7;
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float data2 = 123456.8;
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float data3 = 123456.9;
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if (blend_object_array_getdata(blend_file, &data1, data_obj, 0,0) &&
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blend_object_array_getdata(blend_file, &data2, data_obj, 0,1) &&
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blend_object_array_getdata(blend_file, &data3, data_obj, 0,2)) {
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fprintf(stderr, "CO=(%f,%f,%f) ", data1, data2, data3);
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} else {
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fprintf(stderr, "FETCH ERROR\n");
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}
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}
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}
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}
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static BLENDBLOCKCALLBACK_RETURN
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blockiter(BLENDBLOCKCALLBACK_ARGS) {
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int i;
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int entry_count = blend_block_get_entry_count(blend_file, block);
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#if 0
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const char* tagname = blend_block_get_tagname(blend_file, block);
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const char* typename = blend_block_get_typename(blend_file, block);
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fprintf(stderr, "block: tag=%s type=%s entries=%d ",
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tagname, typename, entry_count);
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#endif
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for (i=0; i<entry_count; ++i) {
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BlendObject obj = blend_block_get_object(blend_file, block, i);
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crawl(blend_file, obj);
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}
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//fprintf(stderr, "\n");
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return 1;
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}
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int
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main(int argc, char *argv[])
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{
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MY_FILETYPE *file;
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BlendFile *bf;
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int rtn = 0;
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if (argc <= 1) {
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fprintf(stderr, "specify filename on command line.\n");
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return -1;
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}
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file = MY_OPEN_FOR_READ(argv[1]);
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if (!file) {
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fprintf(stderr, "couldn't open file. :(\n");
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return -1;
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}
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bf = blend_read(file);
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if (!bf) {
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fprintf(stderr, "couldn't read blender file. :(\n");
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rtn = -1;
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goto closeit;
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}
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blend_dump_typedefs(bf);
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blend_dump_blocks(bf);
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fflush(stdout);
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blend_foreach_block(bf, blockiter, NULL);
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{
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BlendObject obj;
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char want_name[] = "IMmetalrock.jpg";
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if (blend_object_get_by_IDname(bf,&obj, want_name)) {
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fprintf(stderr, "got %s.\n", want_name);
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}
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}
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blend_free(bf);
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closeit:
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MY_CLOSE(file);
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return rtn;
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}
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