int get_number_of_faces(int i, int j, int k)
{
int number_to_return = 0;
if(check_block_exists(i,j,k+1) == false)
{
number_to_return++;
}
if(check_block_exists(i,j,k-1) == false)
{
number_to_return++;
}
if(check_block_exists(i,j-1,k) == false)
{
number_to_return++;
}
if(check_block_exists(i,j+1,k) == false)
{
number_to_return++;
}
if(check_block_exists(i-1,j,k) == false)
{
number_to_return++;
}
if(check_block_exists(i+1,j,k) == false)
{
number_to_return++;
}
return number_to_return;
}
// This isn't used
// drawing in immediate mode
void draw_cube(int i, int j, int k)
{
glBindTexture(GL_TEXTURE_2D, NULL);
// draw different faces of the cube
// only if there isn't another cube
// adjacent on that side
glBegin(GL_QUADS);
if(world[i][j][k].type == DIRT)
{
glColor3f(1.0f,0.5f,0.1f);
}
else if(world[i][j][k].type == TOPSOIL)
{
glColor3f(0.0f,0.8f,0.0f);
}
if(check_block_exists(i,j,k+1) == false)
{
//front
glVertex3f(0.5f,0.5f,0.5f);
glVertex3f(-0.5f,0.5f,0.5f);
glVertex3f(-0.5f,-0.5f,0.5f);
glVertex3f(0.5f,-0.5f,0.5f);
}
if(check_block_exists(i,j,k-1) == false)
{
//back
glVertex3f(0.5f,0.5f,-0.5f);
glVertex3f(-0.5f,0.5f,-0.5f);
glVertex3f(-0.5f,-0.5f,-0.5f);
glVertex3f(0.5f,-0.5f,-0.5f);
}
if(check_block_exists(i,j-1,k) == false)
{
//top
glVertex3f(0.5f,-0.5f,0.5f);
glVertex3f(-0.5f,-0.5f,0.5f);
glVertex3f(-0.5f,-0.5f,-0.5f);
glVertex3f(0.5f,-0.5f,-0.5f);
}
if(check_block_exists(i,j+1,k) == false)
{
//bottom
glVertex3f(0.5f,0.5f,0.5f);
glVertex3f(-0.5f,0.5f,0.5f);
glVertex3f(-0.5f,0.5f,-0.5f);
glVertex3f(0.5f,0.5f,-0.5f);
}
if(check_block_exists(i-1,j,k) == false)
{
//left
glVertex3f(-0.5f,0.5f,0.5f);
glVertex3f(-0.5f,-0.5f,0.5f);
glVertex3f(-0.5f,-0.5f,-0.5f);
glVertex3f(-0.5f,0.5f,-0.5f);
}
if(check_block_exists(i+1,j,k) == false)
{
//right
glVertex3f(0.5f,0.5f,0.5f);
glVertex3f(0.5f,-0.5f,0.5f);
glVertex3f(0.5f,-0.5f,-0.5f);
glVertex3f(0.5f,0.5f,-0.5f);
}
glEnd();
glColor3f(1.0f,1.0f,1.0f);
}
int populate_verticies(float *vertex_buffer, float *color_buffer, float *texcoord_buffer)
{
int i,j,k;
int total=0;
int current_face = 0;
float *current_color;
float brown[3];
brown[0] = 1;
brown[1] = 1;
brown[2] = 1;
current_color = brown;
float green[3];
green[0] = 1;
green[1] = 1;
green[2] = 1;
float *current_texcoords;
float dirt_texcoords[8];
dirt_texcoords[0] = 0.0f;
dirt_texcoords[1] = 0.0f;
dirt_texcoords[2] = 0.5f;
dirt_texcoords[3] = 0.0f;
dirt_texcoords[4] = 0.5f;
dirt_texcoords[5] = 1.0f;
dirt_texcoords[6] = 0.0f;
dirt_texcoords[7] = 1.0f;
float grass_texcoords[8];
grass_texcoords[0] = 0.5f;
grass_texcoords[1] = 0.0f;
grass_texcoords[2] = 1.0f;
grass_texcoords[3] = 0.0f;
grass_texcoords[4] = 1.0f;
grass_texcoords[5] = 1.0f;
grass_texcoords[6] = 0.5f;
grass_texcoords[7] = 1.0f;
for(i=0; i<WORLD_SIZE; i++)
{
for(j=0; j<WORLD_SIZE; j++)
{
for(k=0; k<WORLD_SIZE; k++)
{
if(world[i][j][k].type > 0)
{
if(world[i][j][k].type == 1)
current_texcoords = dirt_texcoords;
else
current_texcoords = grass_texcoords;
if(check_block_exists(i,j,k+1) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = 0.5+i;
vertex_buffer[current_face*12+1] = 0.5+j;
vertex_buffer[current_face*12+2] = 0.5+k;
vertex_buffer[current_face*12+3] = -0.5+i;
vertex_buffer[current_face*12+4] = 0.5+j;
vertex_buffer[current_face*12+5] = 0.5+k;
vertex_buffer[current_face*12+6] = -0.5+i;
vertex_buffer[current_face*12+7] = -0.5+j;
vertex_buffer[current_face*12+8] = 0.5+k;
vertex_buffer[current_face*12+9] = 0.5+i;
vertex_buffer[current_face*12+10] = -0.5+j;
vertex_buffer[current_face*12+11] = 0.5+k;
current_face++;
}
if(check_block_exists(i,j,k-1) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = 0.5+i;
vertex_buffer[current_face*12+1] = 0.5+j;
vertex_buffer[current_face*12+2] = -0.5+k;
vertex_buffer[current_face*12+3] = -0.5+i;
vertex_buffer[current_face*12+4] = 0.5+j;
vertex_buffer[current_face*12+5] = -0.5+k;
vertex_buffer[current_face*12+6] = -0.5+i;
vertex_buffer[current_face*12+7] = -0.5+j;
vertex_buffer[current_face*12+8] = -0.5+k;
vertex_buffer[current_face*12+9] = 0.5+i;
vertex_buffer[current_face*12+10] = -0.5+j;
vertex_buffer[current_face*12+11] = -0.5+k;
current_face++;
}
if(check_block_exists(i,j-1,k) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = 0.5+i;
vertex_buffer[current_face*12+1] = -0.5+j;
vertex_buffer[current_face*12+2] = 0.5+k;
vertex_buffer[current_face*12+3] = -0.5+i;
vertex_buffer[current_face*12+4] = -0.5+j;
vertex_buffer[current_face*12+5] = 0.5+k;
vertex_buffer[current_face*12+6] = -0.5+i;
vertex_buffer[current_face*12+7] = -0.5+j;
vertex_buffer[current_face*12+8] = -0.5+k;
vertex_buffer[current_face*12+9] = 0.5+i;
vertex_buffer[current_face*12+10] = -0.5+j;
vertex_buffer[current_face*12+11] = -0.5+k;
current_face++;
}
if(check_block_exists(i,j+1,k) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = 0.5+i;
vertex_buffer[current_face*12+1] = 0.5+j;
vertex_buffer[current_face*12+2] = 0.5+k;
vertex_buffer[current_face*12+3] = -0.5+i;
vertex_buffer[current_face*12+4] = 0.5+j;
vertex_buffer[current_face*12+5] = 0.5+k;
vertex_buffer[current_face*12+6] = -0.5+i;
vertex_buffer[current_face*12+7] = 0.5+j;
vertex_buffer[current_face*12+8] = -0.5+k;
vertex_buffer[current_face*12+9] = 0.5+i;
vertex_buffer[current_face*12+10] = 0.5+j;
vertex_buffer[current_face*12+11] = -0.5+k;
current_face++;
}
if(check_block_exists(i-1,j,k) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = -0.5+i;
vertex_buffer[current_face*12+1] = 0.5+j;
vertex_buffer[current_face*12+2] = 0.5+k;
vertex_buffer[current_face*12+3] = -0.5+i;
vertex_buffer[current_face*12+4] = -0.5+j;
vertex_buffer[current_face*12+5] = 0.5+k;
vertex_buffer[current_face*12+6] = -0.5+i;
vertex_buffer[current_face*12+7] = -0.5+j;
vertex_buffer[current_face*12+8] = -0.5+k;
vertex_buffer[current_face*12+9] = -0.5+i;
vertex_buffer[current_face*12+10] = 0.5+j;
vertex_buffer[current_face*12+11] = -0.5+k;
current_face++;
}
if(check_block_exists(i+1,j,k) == false)
{
texcoord_buffer[current_face*8] = current_texcoords[0];
texcoord_buffer[current_face*8+1] = current_texcoords[1];
texcoord_buffer[current_face*8+2] = current_texcoords[2];
texcoord_buffer[current_face*8+3] = current_texcoords[3];
texcoord_buffer[current_face*8+4] = current_texcoords[4];
texcoord_buffer[current_face*8+5] = current_texcoords[5];
texcoord_buffer[current_face*8+6] = current_texcoords[6];
texcoord_buffer[current_face*8+7] = current_texcoords[7];
color_buffer[current_face*12] = current_color[0];
color_buffer[current_face*12+1] = current_color[1];
color_buffer[current_face*12+2] = current_color[2];
color_buffer[current_face*12+3] = current_color[0];
color_buffer[current_face*12+4] = current_color[1];
color_buffer[current_face*12+5] = current_color[2];
color_buffer[current_face*12+6] = current_color[0];
color_buffer[current_face*12+7] = current_color[1];
color_buffer[current_face*12+8] = current_color[2];
color_buffer[current_face*12+9] = current_color[0];
color_buffer[current_face*12+10] = current_color[1];
color_buffer[current_face*12+11] = current_color[2];
vertex_buffer[current_face*12] = 0.5+i;
vertex_buffer[current_face*12+1] = 0.5+j;
vertex_buffer[current_face*12+2] = 0.5+k;
vertex_buffer[current_face*12+3] = 0.5+i;
vertex_buffer[current_face*12+4] = -0.5+j;
vertex_buffer[current_face*12+5] = 0.5+k;
vertex_buffer[current_face*12+6] = 0.5+i;
vertex_buffer[current_face*12+7] = -0.5+j;
vertex_buffer[current_face*12+8] = -0.5+k;
vertex_buffer[current_face*12+9] = 0.5+i;
vertex_buffer[current_face*12+10] = 0.5+j;
vertex_buffer[current_face*12+11] = -0.5+k;
current_face++;
}
}
}
}
}
return current_face;
}
unsigned long long file_read_block(unsigned long long blocknr,
const char *filename, char *blockdata,
unsigned long long inode)
{
unsigned long long ret = 0;
DBT *data = NULL;
DBT *decrypted = NULL;
DBT *cachedata;
unsigned char *stiger;
unsigned char *dtiger;
compr *uncompdata = NULL;
INOBNO inobno;
BLKCACHE *blk;
bool compressed = 1;
QDTA *dta;
#ifndef SHA3
word64 res[3];
#endif
FUNC;
inobno.inode = inode;
inobno.blocknr = blocknr;
data = try_block_cache(inode, blocknr, 0);
if (NULL != data) {
LDEBUG("file_read_block : block %llu - %llu found in cache", inode,
blocknr);
memcpy(blockdata, data->data, data->size);
ret = data->size;
DBTfree(data);
return (ret);
}
data = check_block_exists(inobno);
if (NULL == data) {
LDEBUG("check_block_exists : Nothing found for inode %llu - %llu",
inobno.inode, inobno.blocknr);
LDEBUG("DONE ret = %llu",ret);
return (ret);
}
// Not needed to copy this.
stiger = s_malloc(data->size);
memcpy(stiger, data->data, data->size);
DBTfree(data);
// First try the cache
get_moddb_lock();
data = search_memhash(dbdtaq, stiger, config->hashlen);
if (NULL == data) {
decrypted = file_tgr_read_data(stiger);
if (NULL != decrypted) {
LDEBUG
("file_read_block : found inode %llu - %llu file_io",
inobno.inode, inobno.blocknr);
} else {
cachedata =
search_memhash(blkcache, &inobno.inode,
sizeof(unsigned long long));
if (NULL != cachedata) {
blk = (BLKCACHE *) cachedata->data;
#ifdef SHA3
dtiger=sha_binhash(blk->blockdata, BLKSIZE);
#else
binhash(blk->blockdata, BLKSIZE,res);
dtiger=(unsigned char *)&res;
#endif
if (0 == memcmp(dtiger, stiger, config->hashlen)) {
decrypted = s_malloc(sizeof(DBT));
decrypted->data = s_malloc(BLKSIZE);
decrypted->size = BLKSIZE;
memcpy(decrypted->data, blk->blockdata, BLKSIZE);
compressed = 0;
}
#ifdef SHA3
free(dtiger);
#endif
DBTfree(cachedata);
}
}
} else {
decrypted = s_malloc(sizeof(DBT));
dta = (QDTA *) data->data;
decrypted->data = s_malloc(dta->size);
memcpy(decrypted->data, dta->data, dta->size);
decrypted->size = dta->size;
DBTfree(data);
}
release_moddb_lock();
if (decrypted->size > BLKSIZE)
die_dataerr("file_read_block : data has grown beyond blocksize %lu",
decrypted->size);
if (compressed && decrypted->size != BLKSIZE) {
#ifdef LZO
uncompdata = lzo_decompress(decrypted->data, decrypted->size);
#else
uncompdata = clz_decompress(decrypted->data, decrypted->size);
#endif
memcpy(blockdata, uncompdata->data, uncompdata->size);
ret = uncompdata->size;
comprfree(uncompdata);
} else {
memcpy(blockdata, decrypted->data, decrypted->size);
ret = decrypted->size;
}
DBTfree(decrypted);
free(stiger);
EFUNC;
return (ret);
}