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chunk.c
1097 lines (929 loc) · 39.7 KB
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chunk.c
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/*
Copyright (c) 2017-2018 ByteBit
This file is part of BetterSpades.
BetterSpades is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
BetterSpades is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with BetterSpades. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include <pthread.h>
#include <signal.h>
struct chunk chunks[CHUNKS_PER_DIM*CHUNKS_PER_DIM] = {0};
int chunk_geometry_changed[CHUNKS_PER_DIM*CHUNKS_PER_DIM*2];
int chunk_geometry_changed_lenght = 0;
int chunk_lighting_changed[CHUNKS_PER_DIM*CHUNKS_PER_DIM*2];
int chunk_lighting_changed_lenght = 0;
int chunk_render_mode = 0;
struct chunk_d {
int x,y;
};
struct chunk_worker chunk_workers[CHUNK_WORKERS_MAX];
int chunk_enabled_cores;
pthread_rwlock_t* chunk_map_locks;
pthread_mutex_t chunk_minimap_lock;
static int chunk_sort(const void* a, const void* b) {
struct chunk_d* aa = (struct chunk_d*)a;
struct chunk_d* bb = (struct chunk_d*)b;
return distance2D(aa->x+CHUNK_SIZE/2,aa->y+CHUNK_SIZE/2,camera_x,camera_z)
-distance2D(bb->x+CHUNK_SIZE/2,bb->y+CHUNK_SIZE/2,camera_x,camera_z);
}
void chunk_init() {
chunk_enabled_cores = min(max(window_cpucores()/2,1),CHUNK_WORKERS_MAX);
log_info("%i cores enabled for chunk generation",chunk_enabled_cores);
pthread_mutex_init(&chunk_minimap_lock,NULL);
chunk_map_locks = malloc(map_size_x*map_size_z*sizeof(pthread_rwlock_t));
CHECK_ALLOCATION_ERROR(chunk_map_locks);
for(int k=0;k<map_size_x*map_size_z;k++)
pthread_rwlock_init(&chunk_map_locks[k],NULL);
for(int k=0;k<chunk_enabled_cores;k++) {
chunk_workers[k].state = CHUNK_WORKERSTATE_IDLE;
chunk_workers[k].mem_size = 0;
chunk_workers[k].vertex_data = NULL;
chunk_workers[k].color_data = NULL;
pthread_mutex_init(&chunk_workers[k].state_lock,NULL);
pthread_create(&chunk_workers[k].thread,NULL,chunk_generate,&chunk_workers[k]);
}
}
void chunk_draw_visible() {
struct chunk_d chunks_draw[CHUNKS_PER_DIM*CHUNKS_PER_DIM*2];
int index = 0;
//go through all possible chunks and store all in range and view
for(int y=-9;y<CHUNKS_PER_DIM+9;y++) {
for(int x=-9;x<CHUNKS_PER_DIM+9;x++) {
if(((x*CHUNK_SIZE-camera_x)*(x*CHUNK_SIZE-camera_x)+(y*CHUNK_SIZE-camera_z)*(y*CHUNK_SIZE-camera_z))<(settings.render_distance+CHUNK_SIZE)*(settings.render_distance+CHUNK_SIZE)) {
int tmp_x = x, tmp_y = y;
if(tmp_x<0)
tmp_x += CHUNKS_PER_DIM;
if(tmp_y<0)
tmp_y += CHUNKS_PER_DIM;
if(tmp_x>=CHUNKS_PER_DIM)
tmp_x -= CHUNKS_PER_DIM;
if(tmp_y>=CHUNKS_PER_DIM)
tmp_y -= CHUNKS_PER_DIM;
if(camera_CubeInFrustum(x*CHUNK_SIZE+CHUNK_SIZE/2,0.0F,y*CHUNK_SIZE+CHUNK_SIZE/2,CHUNK_SIZE/2,chunks[tmp_y*CHUNKS_PER_DIM+tmp_x].max_height))
chunks_draw[index++] = (struct chunk_d){x*CHUNK_SIZE,y*CHUNK_SIZE};
}
}
}
//sort all chunks to draw those in front first
qsort(chunks_draw,index,sizeof(struct chunk_d),chunk_sort);
for(int k=0;k<index;k++)
chunk_render(chunks_draw[k].x/CHUNK_SIZE,chunks_draw[k].y/CHUNK_SIZE);
}
void chunk_set_render_mode(int r) {
chunk_render_mode = r;
}
void chunk_rebuild_all() {
for(int d=0;d<CHUNKS_PER_DIM*CHUNKS_PER_DIM;d++) {
chunk_geometry_changed[d] = d;
}
chunk_geometry_changed_lenght = CHUNKS_PER_DIM*CHUNKS_PER_DIM;
}
void chunk_render(int x, int y) {
matrix_push();
matrix_translate((x<0)*-map_size_x+(x>=CHUNKS_PER_DIM)*map_size_x,0.0F,(y<0)*-map_size_z+(y>=CHUNKS_PER_DIM)*map_size_z);
matrix_upload();
if(x<0)
x += CHUNKS_PER_DIM;
if(y<0)
y += CHUNKS_PER_DIM;
if(x>=CHUNKS_PER_DIM)
x -= CHUNKS_PER_DIM;
if(y>=CHUNKS_PER_DIM)
y -= CHUNKS_PER_DIM;
//glPolygonMode(GL_FRONT,GL_LINE);
if(chunks[((y*CHUNKS_PER_DIM)|x)].created)
glx_displaylist_draw(&chunks[((y*CHUNKS_PER_DIM)|x)].display_list,GLX_DISPLAYLIST_NORMAL);
//glPolygonMode(GL_FRONT,GL_FILL);
matrix_pop();
}
void* chunk_generate(void* data) {
struct chunk_worker* worker = (struct chunk_worker*)data;
while(1) {
int state = -1;
pthread_mutex_lock(&worker->state_lock);
state = worker->state;
pthread_mutex_unlock(&worker->state_lock);
if(state==CHUNK_WORKERSTATE_BUSY) {
pthread_mutex_lock(&chunk_minimap_lock);
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
if((x%64)>0 && (z%64)>0) {
pthread_rwlock_rdlock(&chunk_map_locks[x+z*map_size_x]);
for(int y=map_size_y-1;y>=0;y--) {
if(map_colors[x+(y*map_size_z+z)*map_size_x]!=0xFFFFFFFF) {
map_minimap[(x+z*map_size_x)*4+0] = red(map_colors[x+(y*map_size_z+z)*map_size_x]);
map_minimap[(x+z*map_size_x)*4+1] = green(map_colors[x+(y*map_size_z+z)*map_size_x]);
map_minimap[(x+z*map_size_x)*4+2] = blue(map_colors[x+(y*map_size_z+z)*map_size_x]);
break;
}
}
pthread_rwlock_unlock(&chunk_map_locks[x+z*map_size_x]);
}
}
}
pthread_mutex_unlock(&chunk_minimap_lock);
if(settings.greedy_meshing)
chunk_generate_greedy(worker);
else
chunk_generate_naive(worker);
pthread_mutex_lock(&worker->state_lock);
worker->state = CHUNK_WORKERSTATE_FINISHED;
pthread_mutex_unlock(&worker->state_lock);
}
usleep(10);
}
return NULL;
}
void chunk_generate_greedy(struct chunk_worker* worker) {
int size = 0;
int max_height = 0;
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
for(int y=0;y<map_size_y;y++) {
int index = x+(y*map_size_z+z)*map_size_x;
if(map_colors[index]!=0xFFFFFFFF) {
if(max_height<y)
max_height = y;
if(y==map_size_y-1 || map_colors[x+((y+1)*map_size_z+z)*map_size_x]==0xFFFFFFFF) { size++; }
if(y>0 && map_colors[x+((y-1)*map_size_z+z)*map_size_x]==0xFFFFFFFF) { size++; }
if((x==0 && map_colors[map_size_x-1+(y*map_size_z+z)*map_size_x]==0xFFFFFFFF) || (x>0 && map_colors[index-1]==0xFFFFFFFF)) { size++; }
if((x==map_size_x-1 && map_colors[(y*map_size_z+z)*map_size_x]==0xFFFFFFFF) || (x<map_size_x-1 && map_colors[index+1]==0xFFFFFFFF)) { size++; }
if((z==0 && map_colors[x+(y*map_size_z+map_size_z-1)*map_size_x]==0xFFFFFFFF) || (z>0 && map_colors[x+(y*map_size_z+z-1)*map_size_x]==0xFFFFFFFF)) { size++; }
if((z==map_size_z-1 && map_colors[x+(y*map_size_z)*map_size_x]==0xFFFFFFFF) || (z<map_size_z-1 && map_colors[x+(y*map_size_z+z+1)*map_size_x]==0xFFFFFFFF)) { size++; }
}
}
}
}
max_height++;
short* chunk_vertex_data = malloc(size*24);
CHECK_ALLOCATION_ERROR(chunk_vertex_data)
unsigned char* chunk_color_data = malloc(size*12);
CHECK_ALLOCATION_ERROR(chunk_color_data)
int chunk_vertex_index = 0;
int chunk_color_index = 0;
unsigned char checked_voxels[2][CHUNK_SIZE*CHUNK_SIZE];
unsigned char checked_voxels2[2][CHUNK_SIZE*map_size_y];
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
for(int k=0;k<CHUNK_SIZE*map_size_y;k++) {
checked_voxels2[0][k] = 0;
checked_voxels2[1][k] = 0;
}
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
for(int y=0;y<map_size_y;y++) {
unsigned int col = map_get(x,y,z);
if(col!=0xFFFFFFFF) {
unsigned char r = (col&0xFF);
unsigned char g = ((col>>8)&0xFF);
unsigned char b = ((col>>16)&0xFF);
if((z==0 && map_isair(x,y,map_size_z-1)) || (z>0 && map_isair(x,y,z-1))) {
if(checked_voxels2[0][y+(x-worker->chunk_x)*map_size_y]==0) {
int len_y = 0;
int len_x = 1;
for(int a=0;a<map_size_y-y;a++) {
if(map_get(x,y+a,z)==col && checked_voxels2[0][y+a+(x-worker->chunk_x)*map_size_y]==0 && ((z==0 && map_isair(x,y+a,map_size_z-1)) || (z>0 && map_isair(x,y+a,z-1))))
len_y++;
else
break;
}
for(int b=1;b<(worker->chunk_x+CHUNK_SIZE-x);b++) {
int a;
for(a=0;a<len_y;a++) {
if(map_get(x+b,y+a,z)!=col || checked_voxels2[0][y+a+(x+b-worker->chunk_x)*map_size_y]!=0 || !((z==0 && map_isair(x+b,y+a,map_size_z-1)) || (z>0 && map_isair(x+b,y+a,z-1))))
break;
}
if(a==len_y)
len_x++;
else
break;
}
for(int b=0;b<len_x;b++)
for(int a=0;a<len_y;a++)
checked_voxels2[0][y+a+(x+b-worker->chunk_x)*map_size_y] = 1;
chunk_color_data[chunk_color_index++] = (int)(r*0.7F);
chunk_color_data[chunk_color_index++] = (int)(g*0.7F);
chunk_color_data[chunk_color_index++] = (int)(b*0.7F);
chunk_color_data[chunk_color_index++] = (int)(r*0.7F);
chunk_color_data[chunk_color_index++] = (int)(g*0.7F);
chunk_color_data[chunk_color_index++] = (int)(b*0.7F);
chunk_color_data[chunk_color_index++] = (int)(r*0.7F);
chunk_color_data[chunk_color_index++] = (int)(g*0.7F);
chunk_color_data[chunk_color_index++] = (int)(b*0.7F);
chunk_color_data[chunk_color_index++] = (int)(r*0.7F);
chunk_color_data[chunk_color_index++] = (int)(g*0.7F);
chunk_color_data[chunk_color_index++] = (int)(b*0.7F);
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
}
}
if((z==map_size_z-1 && map_isair(x,y,0)) || (z<map_size_z-1 && map_isair(x,y,z+1))) {
if(checked_voxels2[1][y+(x-worker->chunk_x)*map_size_y]==0) {
int len_y = 0;
int len_x = 1;
for(int a=0;a<map_size_y-y;a++) {
if(map_get(x,y+a,z)==col && checked_voxels2[1][y+a+(x-worker->chunk_x)*map_size_y]==0 && ((z==map_size_z-1 && map_isair(x,y+a,0)) || (z<map_size_z-1 && map_isair(x,y+a,z+1))))
len_y++;
else
break;
}
for(int b=1;b<(worker->chunk_x+CHUNK_SIZE-x);b++) {
int a;
for(a=0;a<len_y;a++) {
if(map_get(x+b,a+a,z)!=col || checked_voxels2[1][y+a+(x+b-worker->chunk_x)*map_size_y]!=0 || !((z==map_size_z-1 && map_isair(x+b,y+a,0)) || (z<map_size_z-1 && map_isair(x+b,y+a,z+1))))
break;
}
if(a==len_y)
len_x++;
else
break;
}
for(int b=0;b<len_x;b++)
for(int a=0;a<len_y;a++)
checked_voxels2[1][y+a+(x+b-worker->chunk_x)*map_size_y] = 1;
chunk_color_data[chunk_color_index++] = (int)(r*0.6F);
chunk_color_data[chunk_color_index++] = (int)(g*0.6F);
chunk_color_data[chunk_color_index++] = (int)(b*0.6F);
chunk_color_data[chunk_color_index++] = (int)(r*0.6F);
chunk_color_data[chunk_color_index++] = (int)(g*0.6F);
chunk_color_data[chunk_color_index++] = (int)(b*0.6F);
chunk_color_data[chunk_color_index++] = (int)(r*0.6F);
chunk_color_data[chunk_color_index++] = (int)(g*0.6F);
chunk_color_data[chunk_color_index++] = (int)(b*0.6F);
chunk_color_data[chunk_color_index++] = (int)(r*0.6F);
chunk_color_data[chunk_color_index++] = (int)(g*0.6F);
chunk_color_data[chunk_color_index++] = (int)(b*0.6F);
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+1;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+1;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z+1;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z+1;
}
}
}
}
}
}
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
for(int k=0;k<CHUNK_SIZE*map_size_y;k++) {
checked_voxels2[0][k] = 0;
checked_voxels2[1][k] = 0;
}
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
for(int y=0;y<map_size_y;y++) {
unsigned int col = map_get(x,y,z);
if(col!=0xFFFFFFFF) {
unsigned char r = (col&0xFF);
unsigned char g = ((col>>8)&0xFF);
unsigned char b = ((col>>16)&0xFF);
if((x==0 && map_isair(map_size_x-1,y,z)) || (x>0 && map_isair(x-1,y,z))) {
if(checked_voxels2[0][y+(z-worker->chunk_y)*map_size_y]==0) {
int len_y = 0;
int len_z = 1;
for(int a=0;a<map_size_y-y;a++) {
if(map_get(x,y+a,z)==col && checked_voxels2[0][y+a+(z-worker->chunk_y)*map_size_y]==0 && ((x==0 && map_isair(map_size_x-1,y+a,z)) || (x>0 && map_isair(x-1,y+a,z))))
len_y++;
else
break;
}
for(int b=1;b<(worker->chunk_y+CHUNK_SIZE-z);b++) {
int a;
for(a=0;a<len_y;a++) {
if(map_get(x,y+a,z+b)!=col || checked_voxels2[0][y+a+(z+b-worker->chunk_y)*map_size_y]!=0 || !((x==0 && map_isair(map_size_x-1,y+a,z+b)) || (x>0 && map_isair(x-1,y+a,z+b))))
break;
}
if(a==len_y)
len_z++;
else
break;
}
for(int b=0;b<len_z;b++)
for(int a=0;a<len_y;a++)
checked_voxels2[0][y+a+(z+b-worker->chunk_y)*map_size_y] = 1;
chunk_color_data[chunk_color_index++] = (int)(r*0.9F);
chunk_color_data[chunk_color_index++] = (int)(g*0.9F);
chunk_color_data[chunk_color_index++] = (int)(b*0.9F);
chunk_color_data[chunk_color_index++] = (int)(r*0.9F);
chunk_color_data[chunk_color_index++] = (int)(g*0.9F);
chunk_color_data[chunk_color_index++] = (int)(b*0.9F);
chunk_color_data[chunk_color_index++] = (int)(r*0.9F);
chunk_color_data[chunk_color_index++] = (int)(g*0.9F);
chunk_color_data[chunk_color_index++] = (int)(b*0.9F);
chunk_color_data[chunk_color_index++] = (int)(r*0.9F);
chunk_color_data[chunk_color_index++] = (int)(g*0.9F);
chunk_color_data[chunk_color_index++] = (int)(b*0.9F);
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z;
}
}
if((x==map_size_x-1 && map_isair(0,y,z)) || (x<map_size_x-1 && map_isair(x+1,y,z))) {
if(checked_voxels2[1][y+(z-worker->chunk_y)*map_size_y]==0) {
int len_y = 0;
int len_z = 1;
for(int a=0;a<map_size_y-y;a++) {
if(map_get(x,y+a,z)==col && checked_voxels2[1][y+a+(z-worker->chunk_y)*map_size_y]==0 && ((x==map_size_x-1 && map_isair(0,y+a,z)) || (x<map_size_x-1 && map_isair(x+1,y+a,z))))
len_y++;
else
break;
}
for(int b=1;b<(worker->chunk_y+CHUNK_SIZE-z);b++) {
int a;
for(a=0;a<len_y;a++) {
if(map_get(x,y+a,z+b)!=col || checked_voxels2[1][y+a+(z+b-worker->chunk_y)*map_size_y]!=0 || !((x==map_size_x-1 && map_isair(0,y+a,z+b)) || (x<map_size_x-1 && map_isair(x+1,y+a,z+b))))
break;
}
if(a==len_y)
len_z++;
else
break;
}
for(unsigned char b=0;b<len_z;b++)
for(unsigned char a=0;a<len_y;a++)
checked_voxels2[1][y+a+(z+b-worker->chunk_y)*map_size_y] = 1;
chunk_color_data[chunk_color_index++] = (int)(r*0.8F);
chunk_color_data[chunk_color_index++] = (int)(g*0.8F);
chunk_color_data[chunk_color_index++] = (int)(b*0.8F);
chunk_color_data[chunk_color_index++] = (int)(r*0.8F);
chunk_color_data[chunk_color_index++] = (int)(g*0.8F);
chunk_color_data[chunk_color_index++] = (int)(b*0.8F);
chunk_color_data[chunk_color_index++] = (int)(r*0.8F);
chunk_color_data[chunk_color_index++] = (int)(g*0.8F);
chunk_color_data[chunk_color_index++] = (int)(b*0.8F);
chunk_color_data[chunk_color_index++] = (int)(r*0.8F);
chunk_color_data[chunk_color_index++] = (int)(g*0.8F);
chunk_color_data[chunk_color_index++] = (int)(b*0.8F);
chunk_vertex_data[chunk_vertex_index++] = x+1;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+1;
chunk_vertex_data[chunk_vertex_index++] = y+len_y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+1;
chunk_vertex_data[chunk_vertex_index++] = y+len_y,
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x+1;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
}
}
}
}
}
}
for(int y=0;y<map_size_y;y++) {
for(int k=0;k<CHUNK_SIZE*CHUNK_SIZE;k++) {
checked_voxels[0][k] = 0;
checked_voxels[1][k] = 0;
}
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
unsigned int col = map_get(x,y,z);
if(col!=0xFFFFFFFF) {
unsigned char r = (col&0xFF);
unsigned char g = ((col>>8)&0xFF);
unsigned char b = ((col>>16)&0xFF);
if(y==map_size_y-1 || map_isair(x,y+1,z)) {
if(checked_voxels[0][(x-worker->chunk_x)+(z-worker->chunk_y)*CHUNK_SIZE]==0) {
int len_x = 0;
int len_z = 1;
for(int a=0;a<(worker->chunk_x+CHUNK_SIZE-x);a++) {
if(map_get(x+a,y,z)==col && checked_voxels[0][(x+a-worker->chunk_x)+(z-worker->chunk_y)*CHUNK_SIZE]==0 && (y==map_size_y-1 || map_isair(x+a,y+1,z)))
len_x++;
else
break;
}
for(int b=1;b<(worker->chunk_y+CHUNK_SIZE-z);b++) {
int a;
for(a=0;a<len_x;a++) {
if(map_get(x+a,y,z+b)!=col || checked_voxels[0][(x+a-worker->chunk_x)+(z+b-worker->chunk_y)*CHUNK_SIZE]!=0 || !(y==map_size_y-1 || map_isair(x+a,y+1,z+b)))
break;
}
if(a==len_x)
len_z++;
else
break;
}
for(int b=0;b<len_z;b++)
for(int a=0;a<len_x;a++)
checked_voxels[0][(x+a-worker->chunk_x)+(z+b-worker->chunk_y)*CHUNK_SIZE] = 1;
chunk_color_data[chunk_color_index++] = (int)(r);
chunk_color_data[chunk_color_index++] = (int)(g);
chunk_color_data[chunk_color_index++] = (int)(b);
chunk_color_data[chunk_color_index++] = (int)(r);
chunk_color_data[chunk_color_index++] = (int)(g);
chunk_color_data[chunk_color_index++] = (int)(b);
chunk_color_data[chunk_color_index++] = (int)(r);
chunk_color_data[chunk_color_index++] = (int)(g);
chunk_color_data[chunk_color_index++] = (int)(b);
chunk_color_data[chunk_color_index++] = (int)(r);
chunk_color_data[chunk_color_index++] = (int)(g);
chunk_color_data[chunk_color_index++] = (int)(b);
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+1;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y+1;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y+1;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y+1;
chunk_vertex_data[chunk_vertex_index++] = z;
}
}
if(y>0 && map_isair(x,y-1,z)) {
if(checked_voxels[1][(x-worker->chunk_x)+(z-worker->chunk_y)*CHUNK_SIZE]==0) {
int len_x = 0;
int len_z = 1;
for(int a=0;a<(worker->chunk_x+CHUNK_SIZE-x);a++) {
if(map_get(x+a,y,z)==col && checked_voxels[1][(x+a-worker->chunk_x)+(z-worker->chunk_y)*CHUNK_SIZE]==0 && (y>0 && map_isair(x+a,y-1,z)))
len_x++;
else
break;
}
for(int b=1;b<(worker->chunk_y+CHUNK_SIZE-z);b++) {
int a;
for(a=0;a<len_x;a++) {
if(map_get(x+a,y,z+b)!=col || checked_voxels[1][(x+a-worker->chunk_x)+(z+b-worker->chunk_y)*CHUNK_SIZE]!=0 || !(y>0 && map_isair(x+a,y-1,z+b)))
break;
}
if(a==len_x)
len_z++;
else
break;
}
for(int b=0;b<len_z;b++)
for(int a=0;a<len_x;a++)
checked_voxels[1][(x+a-worker->chunk_x)+(z+b-worker->chunk_y)*CHUNK_SIZE] = 1;
chunk_color_data[chunk_color_index++] = (int)(r*0.5F);
chunk_color_data[chunk_color_index++] = (int)(g*0.5F);
chunk_color_data[chunk_color_index++] = (int)(b*0.5F);
chunk_color_data[chunk_color_index++] = (int)(r*0.5F);
chunk_color_data[chunk_color_index++] = (int)(g*0.5F);
chunk_color_data[chunk_color_index++] = (int)(b*0.5F);
chunk_color_data[chunk_color_index++] = (int)(r*0.5F);
chunk_color_data[chunk_color_index++] = (int)(g*0.5F);
chunk_color_data[chunk_color_index++] = (int)(b*0.5F);
chunk_color_data[chunk_color_index++] = (int)(r*0.5F);
chunk_color_data[chunk_color_index++] = (int)(g*0.5F);
chunk_color_data[chunk_color_index++] = (int)(b*0.5F);
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z;
chunk_vertex_data[chunk_vertex_index++] = x+len_x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
chunk_vertex_data[chunk_vertex_index++] = x;
chunk_vertex_data[chunk_vertex_index++] = y;
chunk_vertex_data[chunk_vertex_index++] = z+len_z;
}
}
}
}
}
}
worker->vertex_data = chunk_vertex_data;
worker->color_data = chunk_color_data;
worker->data_size = chunk_vertex_index/3;
worker->max_height = max_height;
}
//+X = 0.75
//-X = 0.75
//+Y = 1.0
//-Y = 0.5
//+Z = 0.625
//-Z = 0.875
#ifdef OPENGL_ES
#define VERTEX_ADVANCE (3*6*sizeof(short))
#define COLOR_ADVANCE (4*6*sizeof(unsigned char))
#else
#define VERTEX_ADVANCE (3*4*sizeof(short))
#define COLOR_ADVANCE (3*4*sizeof(unsigned char))
#endif
void chunk_generate_naive(struct chunk_worker* worker) {
int size = 0;
int max_height = 0;
int chunk_vertex_index = 0;
int chunk_color_index = 0;
for(int z=worker->chunk_y;z<worker->chunk_y+CHUNK_SIZE;z++) {
for(int x=worker->chunk_x;x<worker->chunk_x+CHUNK_SIZE;x++) {
pthread_rwlock_rdlock(&chunk_map_locks[x+z*map_size_x]);
for(int y=0;y<map_size_y;y++) {
unsigned long long col = map_colors[x+(y*map_size_z+z)*map_size_x];
if(col!=0xFFFFFFFF) {
if(max_height<y) {
max_height = y;
}
unsigned char r = (col&0xFF);
unsigned char g = ((col>>8)&0xFF);
unsigned char b = ((col>>16)&0xFF);
float shade = map_sunblock(x,y,z);
r *= shade;
g *= shade;
b *= shade;
if(z==0) {
pthread_rwlock_rdlock(&chunk_map_locks[x+(map_size_z-1)*map_size_x]);
}
if(z>0) {
pthread_rwlock_rdlock(&chunk_map_locks[x+(z-1)*map_size_x]);
}
if((z==0 && map_colors[x+(y*map_size_z+map_size_z-1)*map_size_x]==0xFFFFFFFF) || (z>0 && map_colors[x+(y*map_size_z+z-1)*map_size_x]==0xFFFFFFFF)) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r*0.875F);
worker->color_data[chunk_color_index++] = (int)(g*0.875F);
worker->color_data[chunk_color_index++] = (int)(b*0.875F);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
#ifdef OPENGL_ES
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
#endif
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
}
if(z==0) {
pthread_rwlock_unlock(&chunk_map_locks[x+(map_size_z-1)*map_size_x]);
}
if(z>0) {
pthread_rwlock_unlock(&chunk_map_locks[x+(z-1)*map_size_x]);
}
if(z==map_size_z-1) {
pthread_rwlock_rdlock(&chunk_map_locks[x]);
}
if(z<map_size_z-1) {
pthread_rwlock_rdlock(&chunk_map_locks[x+(z+1)*map_size_x]);
}
if((z==map_size_z-1 && map_colors[x+(y*map_size_z)*map_size_x]==0xFFFFFFFF) || (z<map_size_z-1 && map_colors[x+(y*map_size_z+z+1)*map_size_x]==0xFFFFFFFF)) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r*0.625F);
worker->color_data[chunk_color_index++] = (int)(g*0.625F);
worker->color_data[chunk_color_index++] = (int)(b*0.625F);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z+1;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z+1;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#ifdef OPENGL_ES
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z+1;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#endif
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1,
worker->vertex_data[chunk_vertex_index++] = z+1;
}
if(z==map_size_z-1) {
pthread_rwlock_unlock(&chunk_map_locks[x]);
}
if(z<map_size_z-1) {
pthread_rwlock_unlock(&chunk_map_locks[x+(z+1)*map_size_x]);
}
if(x==0) {
pthread_rwlock_rdlock(&chunk_map_locks[(map_size_x-1)+z*map_size_x]);
}
if(x>0) {
pthread_rwlock_rdlock(&chunk_map_locks[(x-1)+z*map_size_x]);
}
if((x==0 && map_colors[map_size_x-1+(y*map_size_z+z)*map_size_x]==0xFFFFFFFF) || (x>0 && map_colors[x+(y*map_size_z+z)*map_size_x-1]==0xFFFFFFFF)) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r*0.75F);
worker->color_data[chunk_color_index++] = (int)(g*0.75F);
worker->color_data[chunk_color_index++] = (int)(b*0.75F);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z+1;
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#ifdef OPENGL_ES
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#endif
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
}
if(x==0) {
pthread_rwlock_unlock(&chunk_map_locks[(map_size_x-1)+z*map_size_x]);
}
if(x>0) {
pthread_rwlock_unlock(&chunk_map_locks[(x-1)+z*map_size_x]);
}
if(x==map_size_x-1) {
pthread_rwlock_rdlock(&chunk_map_locks[z*map_size_x]);
}
if(x<map_size_x-1) {
pthread_rwlock_rdlock(&chunk_map_locks[(x+1)+z*map_size_x]);
}
if((x==map_size_x-1 && map_colors[(y*map_size_z+z)*map_size_x]==0xFFFFFFFF) || (x<map_size_x-1 && map_colors[x+(y*map_size_z+z)*map_size_x+1]==0xFFFFFFFF)) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r*0.75F);
worker->color_data[chunk_color_index++] = (int)(g*0.75F);
worker->color_data[chunk_color_index++] = (int)(b*0.75F);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#ifdef OPENGL_ES
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1,
worker->vertex_data[chunk_vertex_index++] = z+1;
#endif
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z+1;
}
if(x==map_size_x-1) {
pthread_rwlock_unlock(&chunk_map_locks[z*map_size_x]);
}
if(x<map_size_x-1) {
pthread_rwlock_unlock(&chunk_map_locks[(x+1)+z*map_size_x]);
}
if(y==map_size_y-1 || map_colors[x+((y+1)*map_size_z+z)*map_size_x]==0xFFFFFFFF) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r);
worker->color_data[chunk_color_index++] = (int)(g);
worker->color_data[chunk_color_index++] = (int)(b);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#ifdef OPENGL_ES
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z+1;
#endif
worker->vertex_data[chunk_vertex_index++] = x+1;
worker->vertex_data[chunk_vertex_index++] = y+1;
worker->vertex_data[chunk_vertex_index++] = z;
}
if(y>0 && map_colors[x+((y-1)*map_size_z+z)*map_size_x]==0xFFFFFFFF) {
if((size+1)>worker->mem_size) {
worker->mem_size += 512; //allow for 512 more quads
worker->vertex_data = realloc(worker->vertex_data,worker->mem_size*VERTEX_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->vertex_data)
worker->color_data = realloc(worker->color_data,worker->mem_size*COLOR_ADVANCE);
CHECK_ALLOCATION_ERROR(worker->color_data)
}
size++;
#ifdef OPENGL_ES
for(int l=0;l<6;l++) {
#else
for(int l=0;l<4;l++) {
#endif
worker->color_data[chunk_color_index++] = (int)(r*0.5F);
worker->color_data[chunk_color_index++] = (int)(g*0.5F);
worker->color_data[chunk_color_index++] = (int)(b*0.5F);
#ifdef OPENGL_ES
worker->color_data[chunk_color_index++] = 255;
#endif
}
worker->vertex_data[chunk_vertex_index++] = x;
worker->vertex_data[chunk_vertex_index++] = y;
worker->vertex_data[chunk_vertex_index++] = z;