void map::generate_lightmap()
{
memset(lm, 0, sizeof(lm));
memset(sm, 0, sizeof(sm));
/* Bulk light sources wastefully cast rays into neighbors; a burning hospital can produce
significant slowdown, so for stuff like fire and lava:
* Step 1: Store the position and luminance in buffer via add_light_source, for efficient
checking of neighbors.
* Step 2: After everything else, iterate buffer and apply_light_source only in non-redundant
directions
* Step 3: Profit!
*/
memset(light_source_buffer, 0, sizeof(light_source_buffer));
constexpr int dir_x[] = { 0, -1 , 1, 0 }; // [0]
constexpr int dir_y[] = { -1, 0 , 0, 1 }; // [1][X][2]
constexpr int dir_d[] = { 180, 270, 0, 90 }; // [3]
const bool u_is_inside = !is_outside(g->u.posx(), g->u.posy());
const float natural_light = g->natural_light_level();
const float hl = natural_light / 2;
if (natural_light > LIGHT_SOURCE_BRIGHT) {
// Apply sunlight, first light source so just assign
for (int sx = DAYLIGHT_LEVEL - hl; sx < LIGHTMAP_CACHE_X - hl; ++sx) {
for (int sy = DAYLIGHT_LEVEL - hl; sy < LIGHTMAP_CACHE_Y - hl; ++sy) {
// In bright light indoor light exists to some degree
if (!is_outside(sx, sy)) {
lm[sx][sy] = LIGHT_AMBIENT_LOW;
} else if (g->u.posx() == sx && g->u.posy() == sy ) {
//Only apply daylight on square where player is standing to avoid flooding
// the lightmap when in less than total sunlight.
lm[sx][sy] = natural_light;
}
}
}
}
apply_character_light( g->u );
for( auto &n : g->active_npc ) {
apply_character_light( *n );
}
// LIGHTMAP_CACHE_X = MAPSIZE * SEEX
// LIGHTMAP_CACHE_Y = MAPSIZE * SEEY
// Traverse the submaps in order
for (int smx = 0; smx < my_MAPSIZE; ++smx) {
for (int smy = 0; smy < my_MAPSIZE; ++smy) {
auto const cur_submap = get_submap_at_grid( smx, smy );
for (int sx = 0; sx < SEEX; ++sx) {
for (int sy = 0; sy < SEEY; ++sy) {
const int x = sx + smx * SEEX;
const int y = sy + smy * SEEY;
// When underground natural_light is 0, if this changes we need to revisit
// Only apply this whole thing if the player is inside,
// buildings will be shadowed when outside looking in.
if (natural_light > LIGHT_SOURCE_BRIGHT && u_is_inside && !is_outside(x, y)) {
// Apply light sources for external/internal divide
for(int i = 0; i < 4; ++i) {
if (INBOUNDS(x + dir_x[i], y + dir_y[i]) &&
is_outside(x + dir_x[i], y + dir_y[i])) {
lm[x][y] = natural_light;
if (light_transparency(x, y) > LIGHT_TRANSPARENCY_SOLID) {
apply_light_arc(x, y, dir_d[i], natural_light);
}
}
}
}
if (cur_submap->lum[sx][sy]) {
auto items = i_at(x, y);
add_light_from_items(x, y, items.begin(), items.end());
}
const ter_id terrain = cur_submap->ter[sx][sy];
if (terrain == t_lava) {
add_light_source(x, y, 50 );
} else if (terrain == t_console) {
add_light_source(x, y, 3 );
} else if (terrain == t_utility_light) {
add_light_source(x, y, 35 );
}
for( auto &fld : cur_submap->fld[sx][sy] ) {
const field_entry *cur = &fld.second;
// TODO: [lightmap] Attach light brightness to fields
switch(cur->getFieldType()) {
case fd_fire:
if (3 == cur->getFieldDensity()) {
add_light_source(x, y, 160);
} else if (2 == cur->getFieldDensity()) {
add_light_source(x, y, 60);
} else {
add_light_source(x, y, 16);
}
break;
case fd_fire_vent:
case fd_flame_burst:
add_light_source(x, y, 8);
break;
case fd_electricity:
case fd_plasma:
if (3 == cur->getFieldDensity()) {
add_light_source(x, y, 8);
} else if (2 == cur->getFieldDensity()) {
add_light_source(x, y, 1);
} else {
apply_light_source(x, y, LIGHT_SOURCE_LOCAL,
trigdist); // kinda a hack as the square will still get marked
}
break;
case fd_incendiary:
if (3 == cur->getFieldDensity()) {
add_light_source(x, y, 30);
} else if (2 == cur->getFieldDensity()) {
add_light_source(x, y, 16);
} else {
add_light_source(x, y, 8);
}
break;
case fd_laser:
apply_light_source(x, y, 1, trigdist);
break;
case fd_spotlight:
add_light_source(x, y, 20);
break;
case fd_dazzling:
add_light_source(x, y, 2);
break;
default:
//Suppress warnings
break;
}
}
}
}
}
}
for (size_t i = 0; i < g->num_zombies(); ++i) {
auto &critter = g->zombie(i);
if(critter.is_hallucination()) {
continue;
}
int mx = critter.posx();
int my = critter.posy();
if (INBOUNDS(mx, my)) {
if (critter.has_effect("onfire")) {
apply_light_source(mx, my, 3, trigdist);
}
// TODO: [lightmap] Attach natural light brightness to creatures
// TODO: [lightmap] Allow creatures to have light attacks (ie: eyebot)
// TODO: [lightmap] Allow creatures to have facing and arc lights
if (critter.type->luminance > 0) {
apply_light_source(mx, my, critter.type->luminance, trigdist);
}
}
}
// Apply any vehicle light sources
VehicleList vehs = get_vehicles();
for( auto &vv : vehs ) {
vehicle *v = vv.v;
if(v->lights_on) {
int dir = v->face.dir();
float veh_luminance = 0.0;
float iteration = 1.0;
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_CONE_LIGHT);
for( auto &light_indice : light_indices ) {
veh_luminance += ( v->part_info( light_indice ).bonus / iteration );
iteration = iteration * 1.1;
}
if (veh_luminance > LL_LIT) {
for( auto &light_indice : light_indices ) {
int px = vv.x + v->parts[light_indice].precalc[0].x;
int py = vv.y + v->parts[light_indice].precalc[0].y;
if(INBOUNDS(px, py)) {
add_light_source(px, py, SQRT_2); // Add a little surrounding light
apply_light_arc( px, py, dir + v->parts[light_indice].direction,
veh_luminance, 45 );
}
}
}
}
if(v->overhead_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_CIRCLE_LIGHT);
for( auto &light_indice : light_indices ) {
if( ( calendar::turn % 2 &&
v->part_info( light_indice ).has_flag( VPFLAG_ODDTURN ) ) ||
( !( calendar::turn % 2 ) &&
v->part_info( light_indice ).has_flag( VPFLAG_EVENTURN ) ) ||
( !v->part_info( light_indice ).has_flag( VPFLAG_EVENTURN ) &&
!v->part_info( light_indice ).has_flag( VPFLAG_ODDTURN ) ) ) {
int px = vv.x + v->parts[light_indice].precalc[0].x;
int py = vv.y + v->parts[light_indice].precalc[0].y;
if(INBOUNDS(px, py)) {
add_light_source( px, py, v->part_info( light_indice ).bonus );
}
}
}
}
// why reinvent the [lightmap] wheel
if(v->dome_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_DOME_LIGHT);
for( auto &light_indice : light_indices ) {
int px = vv.x + v->parts[light_indice].precalc[0].x;
int py = vv.y + v->parts[light_indice].precalc[0].y;
if(INBOUNDS(px, py)) {
add_light_source( px, py, v->part_info( light_indice ).bonus );
}
}
}
if(v->aisle_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_AISLE_LIGHT);
for( auto &light_indice : light_indices ) {
int px = vv.x + v->parts[light_indice].precalc[0].x;
int py = vv.y + v->parts[light_indice].precalc[0].y;
if(INBOUNDS(px, py)) {
add_light_source( px, py, v->part_info( light_indice ).bonus );
}
}
}
if(v->has_atomic_lights) {
// atomic light is always on
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_ATOMIC_LIGHT);
for( auto &light_indice : light_indices ) {
int px = vv.x + v->parts[light_indice].precalc[0].x;
int py = vv.y + v->parts[light_indice].precalc[0].y;
if(INBOUNDS(px, py)) {
add_light_source( px, py, v->part_info( light_indice ).bonus );
}
}
}
for( size_t p = 0; p < v->parts.size(); ++p ) {
int px = vv.x + v->parts[p].precalc[0].x;
int py = vv.y + v->parts[p].precalc[0].y;
if( !INBOUNDS( px, py ) ) {
continue;
}
if( v->part_flag( p, VPFLAG_CARGO ) && !v->part_flag( p, "COVERED" ) ) {
add_light_from_items( px, py, v->get_items(p).begin(), v->get_items(p).end() );
}
}
}
/* Now that we have position and intensity of all bulk light sources, apply_ them
This may seem like extra work, but take a 12x12 raging inferno:
unbuffered: (12^2)*(160*4) = apply_light_ray x 92160
buffered: (12*4)*(160) = apply_light_ray x 7680
*/
for(int sx = 0; sx < LIGHTMAP_CACHE_X; ++sx) {
for(int sy = 0; sy < LIGHTMAP_CACHE_Y; ++sy) {
if ( light_source_buffer[sx][sy] > 0. ) {
apply_light_source(sx, sy, light_source_buffer[sx][sy],
( trigdist && light_source_buffer[sx][sy] > 3. ) );
}
}
}
if (g->u.has_active_bionic("bio_night") ) {
for(int sx = 0; sx < LIGHTMAP_CACHE_X; ++sx) {
for(int sy = 0; sy < LIGHTMAP_CACHE_Y; ++sy) {
if (rl_dist(sx, sy, g->u.posx(), g->u.posy()) < 15) {
lm[sx][sy] = 0;
}
}
}
}
}
void map::generate_lightmap( const int zlev )
{
auto &map_cache = get_cache( zlev );
auto &lm = map_cache.lm;
auto &sm = map_cache.sm;
auto &outside_cache = map_cache.outside_cache;
std::memset(lm, 0, sizeof(lm));
std::memset(sm, 0, sizeof(sm));
/* Bulk light sources wastefully cast rays into neighbors; a burning hospital can produce
significant slowdown, so for stuff like fire and lava:
* Step 1: Store the position and luminance in buffer via add_light_source, for efficient
checking of neighbors.
* Step 2: After everything else, iterate buffer and apply_light_source only in non-redundant
directions
* Step 3: ????
* Step 4: Profit!
*/
auto &light_source_buffer = map_cache.light_source_buffer;
std::memset(light_source_buffer, 0, sizeof(light_source_buffer));
constexpr int dir_x[] = { 0, -1 , 1, 0 }; // [0]
constexpr int dir_y[] = { -1, 0 , 0, 1 }; // [1][X][2]
constexpr int dir_d[] = { 90, 0, 180, 270 }; // [3]
const float natural_light = g->natural_light_level( zlev );
const float inside_light = (natural_light > LIGHT_SOURCE_BRIGHT) ?
LIGHT_AMBIENT_LOW + 1.0 : LIGHT_AMBIENT_MINIMAL;
// Apply sunlight, first light source so just assign
for( int sx = 0; sx < LIGHTMAP_CACHE_X; ++sx ) {
for( int sy = 0; sy < LIGHTMAP_CACHE_Y; ++sy ) {
// In bright light indoor light exists to some degree
if( !outside_cache[sx][sy] ) {
lm[sx][sy] = inside_light;
} else {
lm[sx][sy] = natural_light;
}
}
}
apply_character_light( g->u );
for( auto &n : g->active_npc ) {
apply_character_light( *n );
}
// Traverse the submaps in order
for (int smx = 0; smx < my_MAPSIZE; ++smx) {
for (int smy = 0; smy < my_MAPSIZE; ++smy) {
auto const cur_submap = get_submap_at_grid( smx, smy, zlev );
for (int sx = 0; sx < SEEX; ++sx) {
for (int sy = 0; sy < SEEY; ++sy) {
const int x = sx + smx * SEEX;
const int y = sy + smy * SEEY;
const tripoint p( x, y, zlev );
// Project light into any openings into buildings.
if (natural_light > LIGHT_SOURCE_BRIGHT && !outside_cache[p.x][p.y]) {
// Apply light sources for external/internal divide
for(int i = 0; i < 4; ++i) {
if (INBOUNDS(p.x + dir_x[i], p.y + dir_y[i]) &&
outside_cache[p.x + dir_x[i]][p.y + dir_y[i]]) {
lm[p.x][p.y] = natural_light;
if (light_transparency( p ) > LIGHT_TRANSPARENCY_SOLID) {
apply_directional_light( p, dir_d[i], natural_light );
}
}
}
}
if( cur_submap->lum[sx][sy] && has_items( p ) ) {
auto items = i_at( p );
add_light_from_items( p, items.begin(), items.end() );
}
const ter_id terrain = cur_submap->ter[sx][sy];
if (terrain == t_lava) {
add_light_source( p, 50 );
} else if (terrain == t_console) {
add_light_source( p, 10 );
} else if (terrain == t_utility_light) {
add_light_source( p, 240 );
}
for( auto &fld : cur_submap->fld[sx][sy] ) {
const field_entry *cur = &fld.second;
// TODO: [lightmap] Attach light brightness to fields
switch(cur->getFieldType()) {
case fd_fire:
if (3 == cur->getFieldDensity()) {
add_light_source( p, 160 );
} else if (2 == cur->getFieldDensity()) {
add_light_source( p, 60 );
} else {
add_light_source( p, 20 );
}
break;
case fd_fire_vent:
case fd_flame_burst:
add_light_source( p, 20 );
break;
case fd_electricity:
case fd_plasma:
if (3 == cur->getFieldDensity()) {
add_light_source( p, 20 );
} else if (2 == cur->getFieldDensity()) {
add_light_source( p, 4 );
} else {
// Kinda a hack as the square will still get marked.
apply_light_source( p, LIGHT_SOURCE_LOCAL );
}
break;
case fd_incendiary:
if (3 == cur->getFieldDensity()) {
add_light_source( p, 160 );
} else if (2 == cur->getFieldDensity()) {
add_light_source( p, 60 );
} else {
add_light_source( p, 20 );
}
break;
case fd_laser:
apply_light_source( p, 4 );
break;
case fd_spotlight:
add_light_source( p, 80 );
break;
case fd_dazzling:
add_light_source( p, 5 );
break;
default:
//Suppress warnings
break;
}
}
}
}
}
}
for (size_t i = 0; i < g->num_zombies(); ++i) {
auto &critter = g->zombie(i);
if(critter.is_hallucination()) {
continue;
}
const tripoint &mp = critter.pos();
if( inbounds( mp ) ) {
if (critter.has_effect( effect_onfire)) {
apply_light_source( mp, 8 );
}
// TODO: [lightmap] Attach natural light brightness to creatures
// TODO: [lightmap] Allow creatures to have light attacks (ie: eyebot)
// TODO: [lightmap] Allow creatures to have facing and arc lights
if (critter.type->luminance > 0) {
apply_light_source( mp, critter.type->luminance );
}
}
}
// Apply any vehicle light sources
VehicleList vehs = get_vehicles();
for( auto &vv : vehs ) {
vehicle *v = vv.v;
if(v->lights_on) {
int dir = v->face.dir();
float veh_luminance = 0.0;
float iteration = 1.0;
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_CONE_LIGHT);
for( auto &light_indice : light_indices ) {
veh_luminance += ( v->part_info( light_indice ).bonus / iteration );
iteration = iteration * 1.1;
}
if (veh_luminance > LL_LIT) {
for( auto &light_indice : light_indices ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[light_indice].precalc[0];
if( inbounds( pp ) ) {
add_light_source( pp, SQRT_2 ); // Add a little surrounding light
apply_light_arc( pp, dir + v->parts[light_indice].direction,
veh_luminance, 45 );
}
}
}
}
if(v->overhead_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_CIRCLE_LIGHT);
for( auto &light_indice : light_indices ) {
if( ( calendar::turn % 2 &&
v->part_info( light_indice ).has_flag( VPFLAG_ODDTURN ) ) ||
( !( calendar::turn % 2 ) &&
v->part_info( light_indice ).has_flag( VPFLAG_EVENTURN ) ) ||
( !v->part_info( light_indice ).has_flag( VPFLAG_EVENTURN ) &&
!v->part_info( light_indice ).has_flag( VPFLAG_ODDTURN ) ) ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[light_indice].precalc[0];
if(inbounds( pp )) {
add_light_source( pp, v->part_info( light_indice ).bonus );
}
}
}
}
// why reinvent the [lightmap] wheel
if(v->dome_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_DOME_LIGHT);
for( auto &light_indice : light_indices ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[light_indice].precalc[0];
if( inbounds( pp )) {
add_light_source( pp, v->part_info( light_indice ).bonus );
}
}
}
if(v->aisle_lights_on) {
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_AISLE_LIGHT);
for( auto &light_indice : light_indices ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[light_indice].precalc[0];
if( inbounds( pp )) {
add_light_source( pp, v->part_info( light_indice ).bonus );
}
}
}
if(v->has_atomic_lights) {
// atomic light is always on
std::vector<int> light_indices = v->all_parts_with_feature(VPFLAG_ATOMIC_LIGHT);
for( auto &light_indice : light_indices ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[light_indice].precalc[0];
if(inbounds( pp )) {
add_light_source( pp, v->part_info( light_indice ).bonus );
}
}
}
for( size_t p = 0; p < v->parts.size(); ++p ) {
tripoint pp = tripoint( vv.x, vv.y, vv.z ) +
v->parts[p].precalc[0];
if( !inbounds( pp ) ) {
continue;
}
if( v->part_flag( p, VPFLAG_CARGO ) && !v->part_flag( p, "COVERED" ) ) {
add_light_from_items( pp, v->get_items(p).begin(), v->get_items(p).end() );
}
}
}
/* Now that we have position and intensity of all bulk light sources, apply_ them
This may seem like extra work, but take a 12x12 raging inferno:
unbuffered: (12^2)*(160*4) = apply_light_ray x 92160
buffered: (12*4)*(160) = apply_light_ray x 7680
*/
const tripoint cache_start( 0, 0, zlev );
const tripoint cache_end( LIGHTMAP_CACHE_X, LIGHTMAP_CACHE_Y, zlev );
for( const tripoint &p : points_in_rectangle( cache_start, cache_end ) ) {
if( light_source_buffer[p.x][p.y] > 0.0 ) {
apply_light_source( p, light_source_buffer[p.x][p.y] );
}
}
if (g->u.has_active_bionic("bio_night") ) {
for( const tripoint &p : points_in_rectangle( cache_start, cache_end ) ) {
if( rl_dist( p, g->u.pos() ) < 15 ) {
lm[p.x][p.y] = LIGHT_AMBIENT_MINIMAL;
}
}
}
}
