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dfhack/plugins/rendermax/renderer_light.cpp

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#include "renderer_light.hpp"
#include <functional>
#include <string>
#include "Types.h"
#include "modules/Gui.h"
#include "modules/Screen.h"
#include "modules/Maps.h"
#include "df/graphic.h"
#include "df/viewscreen_dwarfmodest.h"
#include "df/flow_info.h"
#include "df/world.h"
#include "df/building.h"
#include "df/building_doorst.h"
#include "df/plant.h"
#include "df/plant_raw.h"
using df::global::gps;
using namespace DFHack;
using df::coord2d;
const float levelDim=0.2f;
rect2d getMapViewport()
{
const int AREA_MAP_WIDTH = 23;
const int MENU_WIDTH = 30;
if(!gps || !df::viewscreen_dwarfmodest::_identity.is_instance(DFHack::Gui::getCurViewscreen()))
return mkrect_wh(0,0,0,0);
int w=gps->dimx;
int h=gps->dimy;
int view_height=h-2;
int area_x2 = w-AREA_MAP_WIDTH-2;
int menu_x2=w-MENU_WIDTH-2;
int menu_x1=area_x2-MENU_WIDTH-1;
int view_rb=w-1;
int area_pos=*df::global::ui_area_map_width;
int menu_pos=*df::global::ui_menu_width;
if(area_pos<3)
{
view_rb=area_x2;
}
if (menu_pos<area_pos || df::global::ui->main.mode!=0)
{
if (menu_pos >= area_pos)
menu_pos = area_pos-1;
int menu_x = menu_x2;
if(menu_pos < 2) menu_x = menu_x1;
view_rb = menu_x;
}
return mkrect_wh(1,1,view_rb,view_height+1);
}
lightingEngineViewscreen::lightingEngineViewscreen(renderer_light* target):lightingEngine(target)
{
reinit();
initRawSpecific();
}
void lightingEngineViewscreen::reinit()
{
if(!gps)
return;
w=gps->dimx;
h=gps->dimy;
size_t size=w*h;
lightMap.resize(size,lightCell(1,1,1));
ocupancy.resize(size);
lights.resize(size);
}
void plotCircle(int xm, int ym, int r,std::function<void(int,int)> setPixel)
{
int x = -r, y = 0, err = 2-2*r; /* II. Quadrant */
do {
setPixel(xm-x, ym+y); /* I. Quadrant */
setPixel(xm-y, ym-x); /* II. Quadrant */
setPixel(xm+x, ym-y); /* III. Quadrant */
setPixel(xm+y, ym+x); /* IV. Quadrant */
r = err;
if (r <= y) err += ++y*2+1; /* e_xy+e_y < 0 */
if (r > x || err > y) err += ++x*2+1; /* e_xy+e_x > 0 or no 2nd y-step */
} while (x < 0);
}
void plotLine(int x0, int y0, int x1, int y1,std::function<bool(int,int,int,int)> setPixel)
{
int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
int dy = -abs(y1-y0), sy = y0<y1 ? 1 : -1;
int err = dx+dy, e2; /* error value e_xy */
int rdx=0;
int rdy=0;
for(;;){ /* loop */
if(!setPixel(rdx,rdy,x0,y0))
return;
if (x0==x1 && y0==y1) break;
e2 = 2*err;
rdx=rdy=0;
if (e2 >= dy) { err += dy; x0 += sx; rdx=sx;} /* e_xy+e_x > 0 */
if (e2 <= dx) { err += dx; y0 += sy; rdy=sy;} /* e_xy+e_y < 0 */
}
}
lightCell blend(lightCell a,lightCell b)
{
return lightCell(std::max(a.r,b.r),std::max(a.g,b.g),std::max(a.b,b.b));
}
bool lightingEngineViewscreen::lightUpCell(lightCell& power,int dx,int dy,int tx,int ty)
{
if(tx>=mapPort.first.x && ty>=mapPort.first.y && tx<=mapPort.second.x && ty<=mapPort.second.y)
{
size_t tile=getIndex(tx,ty);
float dsq=dx*dx+dy*dy;
float dt=sqrt(dsq);
lightCell& v=ocupancy[tile];
lightSource& ls=lights[tile];
bool wallhack=false;
if(v.r+v.g+v.b==0)
wallhack=true;
if (dsq>0 && !wallhack)
{
power.r=power.r*(pow(v.r,dt));
power.g=power.g*(pow(v.g,dt));
power.b=power.b*(pow(v.b,dt));
}
if(ls.radius>0 && dsq>0)
{
if(power<ls.power)
return false;
}
//float dt=sqrt(dsq);
lightCell oldCol=lightMap[tile];
lightCell ncol=blend(power,oldCol);
lightMap[tile]=ncol;
if(wallhack)
return false;
float pwsq=power.r*power.r+power.g*power.g+power.b*power.b;
return pwsq>levelDim*levelDim;
}
else
return false;
}
void lightingEngineViewscreen::doRay(lightCell power,int cx,int cy,int tx,int ty)
{
using namespace std::placeholders;
lightCell curPower=power;
plotLine(cx,cy,tx,ty,std::bind(&lightingEngineViewscreen::lightUpCell,this,std::ref(curPower),_1,_2,_3,_4));
}
void lightingEngineViewscreen::doFovs()
{
mapPort=getMapViewport();
using namespace std::placeholders;
for(int i=mapPort.first.x;i<mapPort.second.x;i++)
for(int j=mapPort.first.y;j<mapPort.second.y;j++)
{
lightSource& csource=lights[getIndex(i,j)];
if(csource.radius>0)
{
lightCell power=csource.power;
int radius =csource.radius;
if(csource.flicker)
{
float flicker=(rand()/(float)RAND_MAX)/2.0f+0.5f;
radius*=flicker;
power=power*flicker;
}
int surrounds = 0;
lightCell curPower;
if(lightUpCell(curPower = power, 0, 0,i+0, j+0))
{
surrounds += lightUpCell(curPower = power, 0, 1,i+0, j+1);
surrounds += lightUpCell(curPower = power, 1, 1,i+1, j+1);
surrounds += lightUpCell(curPower = power, 1, 0,i+1, j+0);
surrounds += lightUpCell(curPower = power, 1,-1,i+1, j-1);
surrounds += lightUpCell(curPower = power, 0,-1,i+0, j-1);
surrounds += lightUpCell(curPower = power,-1,-1,i-1, j-1);
surrounds += lightUpCell(curPower = power,-1, 0,i-1, j+0);
surrounds += lightUpCell(curPower = power,-1, 1,i-1, j+1);
}
if(surrounds)
plotCircle(i,j,radius,
std::bind(&lightingEngineViewscreen::doRay,this,power,i,j,_1,_2));
}
}
}
void lightingEngineViewscreen::calculate()
{
rect2d vp=getMapViewport();
const lightCell dim(levelDim,levelDim,levelDim);
lightMap.assign(lightMap.size(),lightCell(1,1,1));
lights.assign(lights.size(),lightSource());
for(int i=vp.first.x;i<vp.second.x;i++)
for(int j=vp.first.y;j<vp.second.y;j++)
{
lightMap[getIndex(i,j)]=dim;
}
doOcupancyAndLights();
doFovs();
//for each lightsource in viewscreen+x do light
}
void lightingEngineViewscreen::updateWindow()
{
tthread::lock_guard<tthread::fast_mutex> guard(myRenderer->dataMutex);
if(lightMap.size()!=myRenderer->lightGrid.size())
{
reinit();
myRenderer->invalidate();
return;
}
std::swap(lightMap,myRenderer->lightGrid);
rect2d vp=getMapViewport();
//myRenderer->invalidateRect(vp.first.x,vp.first.y,vp.second.x-vp.first.x,vp.second.y-vp.first.y);
myRenderer->invalidate();
//std::copy(lightMap.begin(),lightMap.end(),myRenderer->lightGrid.begin());
}
void lightSource::combine(const lightSource& other)
{
power=blend(power,other.power);
radius=std::max(other.radius,radius);//hack... but who cares
}
bool lightingEngineViewscreen::addLight(int tileId,const lightSource& light)
{
bool wasLight=lights[tileId].radius>0;
lights[tileId].combine(light);
if(light.flicker)
lights[tileId].flicker=true;
return wasLight;
}
lightCell getStandartColor(int colorId)
{
return lightCell(df::global::enabler->ccolor[colorId][0]/255.0f,
df::global::enabler->ccolor[colorId][1]/255.0f,
df::global::enabler->ccolor[colorId][2]/255.0f);
}
int getPlantNumber(const std::string& id)
{
std::vector<df::plant_raw*>& vec=df::plant_raw::get_vector();
for(int i=0;i<vec.size();i++)
{
if(vec[i]->id==id)
return i;
}
return -1;
}
void addPlant(const std::string& id,std::map<int,lightSource>& map,const lightSource& v)
{
int nId=getPlantNumber(id);
if(nId>0)
{
map[nId]=v;
}
}
void lightingEngineViewscreen::initRawSpecific()
{
addPlant("TOWER_CAP",glowPlants,lightSource(lightCell(0.65,0.65,0.65),6));
addPlant("MUSHROOM_CUP_DIMPLE",glowPlants,lightSource(lightCell(0.03,0.03,0.5),3));
addPlant("CAVE MOSS",glowPlants,lightSource(lightCell(0.1,0.1,0.4),2));
addPlant("MUSHROOM_HELMET_PLUMP",glowPlants,lightSource(lightCell(0.2,0.1,0.6),2));
}
static size_t max_list_size = 100000; // Avoid iterating over huge lists
void lightingEngineViewscreen::doOcupancyAndLights()
{
lightSource sun(lightCell(1,1,1),15);
lightSource lava(lightCell(0.8f,0.2f,0.2f),5);
lightSource candle(lightCell(0.96f,0.84f,0.03f),5);
lightSource torch(lightCell(0.9f,0.75f,0.3f),8);
rect2d vp=getMapViewport();
int window_x=*df::global::window_x;
int window_y=*df::global::window_y;
int window_z=*df::global::window_z;
int vpW=vp.second.x-vp.first.x;
int vpH=vp.second.y-vp.first.y;
int endBlockx = (window_x+vpW)/16;
int endBlocky = (window_y+vpH)/16;
if(endBlockx >= df::global::world->map.x_count_block) endBlockx = df::global::world->map.x_count_block-1;
if(endBlocky >= df::global::world->map.y_count_block) endBlocky = df::global::world->map.y_count_block-1;
for(int blockx=window_x/16;blockx<=endBlockx;blockx++)
for(int blocky=window_y/16;blocky<=endBlocky;blocky++)
{
lightCell cellArray[16][16];
for(int block_x = 0; block_x < 16; block_x++)
for(int block_y = 0; block_y < 16; block_y++)
{
cellArray[block_x][block_y] = lightCell(1,1,1);
}
int totalBlank = 0;
int topLevel = df::global::world->map.z_count-1;
for(int ZZ = topLevel; (ZZ >= window_z) && totalBlank < 256; ZZ--)
{
df::map_block* block=Maps::getBlock(blockx,blocky,ZZ);
totalBlank = 0;
if(block)
for(int block_x = 0; block_x < 16; block_x++)
for(int block_y = 0; block_y < 16; block_y++)
{
df::tiletype type = block->tiletype[block_x][block_y];
df::tile_designation d = block->designation[block_x][block_y];
df::tile_occupancy o = block->occupancy[block_x][block_y];
df::tiletype_shape shape = ENUM_ATTR(tiletype,shape,type);
df::tiletype_shape_basic basic_shape = ENUM_ATTR(tiletype_shape, basic_shape, shape);
if(basic_shape==df::tiletype_shape_basic::Wall)
{
cellArray[block_x][block_y]=lightCell(0,0,0);
}
else if(basic_shape==df::tiletype_shape_basic::Floor || basic_shape==df::tiletype_shape_basic::Ramp || basic_shape==df::tiletype_shape_basic::Stair)
{
if(ZZ!=window_z)
{
cellArray[block_x][block_y]=lightCell(0,0,0);
}
}
if(d.bits.liquid_type == df::enums::tile_liquid::Water && d.bits.flow_size)
{
cellArray[block_x][block_y] *= (lightCell(1,1,1) - (lightCell(1,1,1) - lightCell(0.63f,0.63f,0.75f))*((float)d.bits.flow_size/7.0f));
}
else if(d.bits.liquid_type == df::enums::tile_liquid::Magma && d.bits.flow_size > 3)
{
cellArray[block_x][block_y]=lightCell(0,0,0);
}
if(cellArray[block_x][block_y].r < 0.003f && cellArray[block_x][block_y].g < 0.003f && cellArray[block_x][block_y].b < 0.003f)
totalBlank++;
}
}
for(int block_x = 0; block_x < 16; block_x++)
for(int block_y = 0; block_y < 16; block_y++)
{
df::coord2d pos;
pos.x = blockx*16+block_x;
pos.y = blocky*16+block_y;
int wx=pos.x-window_x+vp.first.x;
int wy=pos.y-window_y+vp.first.y;
if(wx>=vp.first.x && wy>=vp.first.y && wx<=vp.second.x && wy<=vp.second.y)
if(cellArray[block_x][block_y].r >= 0.003f && cellArray[block_x][block_y].g >= 0.003f && cellArray[block_x][block_y].b >= 0.003f)
{
lightSource sun=lightSource(cellArray[block_x][block_y],15);
addLight(getIndex(wx,wy),sun);
}
}
}
for(int x=window_x;x<window_x+vpW;x++)
for(int y=window_y;y<window_y+vpH;y++)
{
int wx=x-window_x+vp.first.x;
int wy=y-window_y+vp.first.y;
int tile=getIndex(wx,wy);
lightCell& curCell=ocupancy[tile];
curCell=lightCell(0.85f,0.85f,0.85f);
df::tiletype* type = Maps::getTileType(x,y,window_z);
if(!type)
{
//unallocated, do sky
addLight(tile,sun);
continue;
}
df::tiletype_shape shape = ENUM_ATTR(tiletype,shape,*type);
df::tile_designation* d=Maps::getTileDesignation(x,y,window_z);
df::tile_designation* d2=Maps::getTileDesignation(x,y,window_z-1);
df::tile_occupancy* o=Maps::getTileOccupancy(x,y,window_z);
df::tiletype_material m=ENUM_ATTR(tiletype,material,*type);
if(!o || !d )
continue;
if(shape==df::tiletype_shape::BROOK_BED || shape==df::tiletype_shape::WALL || shape==df::tiletype_shape::TREE || d->bits.hidden )
{
if(shape==df::tiletype_shape::WALL && m==df::tiletype_material::FROZEN_LIQUID)
curCell*=lightCell(0.7,0.7,0.9);
else
curCell=lightCell(0,0,0);
}
else if(o->bits.building)
{
// Fixme: don't iterate the list every frame
size_t count = df::global::world->buildings.all.size();
if (count <= max_list_size)
{
for(size_t i = 0; i < count; i++)
{
df::building *bld = df::global::world->buildings.all[i];
if (window_z == bld->z &&
x >= bld->x1 && x <= bld->x2 &&
y >= bld->y1 && y <= bld->y2)
{
df::building_type type = bld->getType();
if (type == df::enums::building_type::WindowGlass)
{
if(bld->mat_type == 3)//green glass
{
curCell*=lightCell(0.1f,0.9f,0.5f);
}
else if(bld->mat_type == 4)//clear glass
{
curCell*=lightCell(0.5f,0.95f,0.9f);
}
else if(bld->mat_type == 5)//crystal glass
{
curCell*=lightCell(0.75f,0.95f,0.95f);
}
}
if (type == df::enums::building_type::Table)
{
addLight(tile,candle);
}
if (type==df::enums::building_type::Statue)
{
addLight(tile,torch);
}
if (type==df::enums::building_type::WindowGem)
{
DFHack::MaterialInfo mat(bld->mat_index,bld->mat_type);
if(mat.isInorganic())
{
int color=mat.inorganic->material.basic_color[0]+8*mat.inorganic->material.basic_color[2];
curCell*=getStandartColor(color);
}
}
if(type==df::enums::building_type::Door)
{
df::building_doorst* door=static_cast<df::building_doorst*>(bld);
if(door->door_flags.bits.closed)
curCell*=lightCell(0,0,0);
}
}
}
}
}
else if(!d->bits.liquid_type && d->bits.flow_size>3 )
{
curCell*=lightCell(0.7f,0.7f,0.8f);
}
//lights
if((d->bits.liquid_type && d->bits.flow_size>0)||
(
(shape==df::tiletype_shape::EMPTY || shape==df::tiletype_shape::RAMP_TOP || shape==df::tiletype_shape::STAIR_DOWN || shape==df::tiletype_shape::STAIR_UPDOWN )
&& d2 && d2->bits.liquid_type && d2->bits.flow_size>0)
)
{
addLight(tile,lava);
}
if(d->bits.outside && d->bits.flow_size==0)
{
addLight(tile,sun);
}
}
for(int blockx=window_x/16;blockx<=endBlockx;blockx++)
for(int blocky=window_y/16;blocky<=endBlocky;blocky++)
{
df::map_block* block=Maps::getBlock(blockx,blocky,window_z);
if(!block)
continue;
for(int i=0;i<block->flows.size();i++)
{
df::flow_info* f=block->flows[i];
if(f && f->density>0 && f->type==df::flow_type::Dragonfire || f->type==df::flow_type::Fire)
{
df::coord2d pos=f->pos;
int wx=pos.x-window_x+vp.first.x;
int wy=pos.y-window_y+vp.first.y;
int tile=getIndex(wx,wy);
if(wx>=vp.first.x && wy>=vp.first.y && wx<=vp.second.x && wy<=vp.second.y)
{
lightCell fireColor;
if(f->density>60)
{
fireColor=lightCell(0.98f,0.91f,0.30f);
}
else if(f->density>30)
{
fireColor=lightCell(0.93f,0.16f,0.16f);
}
else
{
fireColor=lightCell(0.64f,0.0f,0.0f);
}
lightSource fire(fireColor,f->density/5);
addLight(tile,fire);
}
}
}
for(int i=0;i<block->plants.size();i++)
{
df::plant* cPlant=block->plants[i];
df::coord2d pos=cPlant->pos;
int wx=pos.x-window_x+vp.first.x;
int wy=pos.y-window_y+vp.first.y;
int tile=getIndex(wx,wy);
if(wx>=vp.first.x && wy>=vp.first.y && wx<=vp.second.x && wy<=vp.second.y)
{
auto it=glowPlants.find(cPlant->material);
if(it!=glowPlants.end())
{
addLight(tile,it->second);
}
}
}
}
if(df::global::cursor->x>-30000)
{
lightSource cursor(lightCell(0.96f,0.84f,0.03f),11);
cursor.flicker=true;
int wx=df::global::cursor->x-window_x+vp.first.x;
int wy=df::global::cursor->y-window_y+vp.first.y;
int tile=getIndex(wx,wy);
addLight(tile,cursor);
}
}
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