From 70880897f6562f2aab8ee0ef9a80dced3f90ce32 Mon Sep 17 00:00:00 2001
From: Warmist <Warmist@gmail.com>
Date: Wed, 26 Jun 2013 22:05:22 +0300
Subject: [PATCH] Added sun time manipulation, updated helpstring.

---
 plugins/rendermax/renderer_light.cpp | 19 +++++++++++++++----
 plugins/rendermax/renderer_light.hpp |  5 ++++-
 plugins/rendermax/rendermax.cpp      | 21 ++++++++++++++++++++-
 plugins/rendermax/rendermax.lua      |  2 +-
 4 files changed, 40 insertions(+), 7 deletions(-)

diff --git a/plugins/rendermax/renderer_light.cpp b/plugins/rendermax/renderer_light.cpp
index 4c4c96401..79c0909a0 100644
--- a/plugins/rendermax/renderer_light.cpp
+++ b/plugins/rendermax/renderer_light.cpp
@@ -600,7 +600,12 @@ void lightingEngineViewscreen::doSun(const lightSource& sky,MapExtras::MapCache&
 void lightingEngineViewscreen::doOcupancyAndLights()
 {
     // TODO better curve (+red dawn ?)
-    float daycol = 0;//abs((*df::global::cur_year_tick % 1200) - 600.0) / 400.0;
+    float daycol;
+    if(dayHour<0)
+        daycol= abs((*df::global::cur_year_tick % 1200) - 600.0) / 600.0;
+    else
+        daycol= abs(fmod(dayHour+12.0f,24.0f)-12.0f)/12.0f; //1->12h 0->24h
+    
     lightCell sky_col(daycol, daycol, daycol);
     lightSource sky(sky_col, 15);
 
@@ -880,6 +885,10 @@ lightCell lua_parseLightCell(lua_State* L)
     if(lua_isnil(L,-1)){field=false;}\
     else{lua_getfield(L,-1,#name);field=lua_isnil(L,-1);lua_pop(L,1);}\
     lua_pop(L,1)
+
+#define GETLUANUMBER(field,name) lua_getfield(L,-1,#name);\
+    if(!lua_isnil(L,-1) && lua_isnumber(L,-1))field=lua_tonumber(L,-1);\
+    lua_pop(L,1)
 matLightDef lua_parseMatDef(lua_State* L)
 {
     
@@ -959,9 +968,9 @@ int lightingEngineViewscreen::parseSpecial(lua_State* L)
     LOAD_SPECIAL(AMBIENT,matAmbience);
     LOAD_SPECIAL(CURSOR,matCursor);
     LOAD_SPECIAL(CITIZEN,matCitizen);
-    lua_getfield(L,-1,"LevelDim");
-    if(!lua_isnil(L,-1) && lua_isnumber(L,-1))engine->levelDim=lua_tonumber(L,-1);
-    lua_pop(L,1);
+    GETLUANUMBER(engine->levelDim,levelDim);
+    GETLUANUMBER(engine->dayHour,dayHour);
+    
     return 0;
 }
 #undef LOAD_SPECIAL
@@ -1027,6 +1036,7 @@ void lightingEngineViewscreen::defaultSettings()
     matWall=matLightDef(lightCell(0,0,0));
     matCitizen=matLightDef(lightCell(0.8f,0.8f,0.9f),6);
     levelDim=0.2f;
+    dayHour=-1;
 }
 void lightingEngineViewscreen::loadSettings()
 {
@@ -1082,3 +1092,4 @@ void lightingEngineViewscreen::loadSettings()
     lua_pop(s,1);
 }
 #undef GETLUAFLAG
+#undef GETLUANUMBER
\ No newline at end of file
diff --git a/plugins/rendermax/renderer_light.hpp b/plugins/rendermax/renderer_light.hpp
index 2e8b03c54..465d46ce0 100644
--- a/plugins/rendermax/renderer_light.hpp
+++ b/plugins/rendermax/renderer_light.hpp
@@ -78,6 +78,7 @@ public:
     virtual void loadSettings()=0;
     virtual void clear()=0;
     
+    virtual void setHour(float h)=0;
 protected:
     renderer_light* myRenderer;
 };
@@ -182,11 +183,13 @@ private:
     int nextIndex;
     std::vector<tthread::thread *> threadList;
     void doLightThreads();
+    //misc
+    void setHour(float h){dayHour=h;};
 public:
 	void lightWorkerThread(void * arg);
 private:
     //settings
-
+    float dayHour; //<0 to cycle
     ///set up sane settings if setting file does not exist.
     void defaultSettings(); 
 
diff --git a/plugins/rendermax/rendermax.cpp b/plugins/rendermax/rendermax.cpp
index 482dfa6cb..6a1b40890 100644
--- a/plugins/rendermax/rendermax.cpp
+++ b/plugins/rendermax/rendermax.cpp
@@ -20,6 +20,8 @@
 #include "df/viewscreen_dwarfmodest.h"
 #include "df/viewscreen_dungeonmodest.h"
 
+#include <sstream>
+
 using df::viewscreen_dungeonmodest;
 using df::viewscreen_dwarfmodest;
 
@@ -45,7 +47,9 @@ DFhackCExport command_result plugin_init (color_ostream &out, std::vector <Plugi
         "  rendermax trippy\n"
         "  rendermax truecolor red|green|blue|white\n"
         "  rendermax lua\n"
-        "  rendermax light\n"
+        "  rendermax light - lighting engine\n"
+        "  rendermax light reload - reload the settings file\n"
+        "  rendermax light sun <x>|cycle - set time to x or cycle (same effect if x<0)\n"
         "  rendermax disable\n"
         ));
     return CR_OK;
@@ -366,6 +370,21 @@ static command_result rendermax(color_ostream &out, vector <string> & parameters
                 CoreSuspender suspend;
                 engine->loadSettings();
             }
+            else if(parameters[1]=="sun" && parameters.size()==3)
+            {
+                if(parameters[2]=="cycle")
+                {
+                    engine->setHour(-1);
+                }
+                else
+                {
+                    std::stringstream ss;
+                    ss<<parameters[2];
+                    float h;
+                    ss>>h;
+                    engine->setHour(h);
+                }
+            }
         }
         else
             out.printerr("Light mode already enabled");
diff --git a/plugins/rendermax/rendermax.lua b/plugins/rendermax/rendermax.lua
index ed790be48..4140a8068 100644
--- a/plugins/rendermax/rendermax.lua
+++ b/plugins/rendermax/rendermax.lua
@@ -104,8 +104,8 @@ special.AMBIENT=makeMaterialDef({0.85,0.85,0.85}) --ambient fog
 special.CURSOR=makeMaterialDef({1,1,1},{0.96,0.84,0.03},11, {"flicker"})
 special.CITIZEN=makeMaterialDef(nil,{0.80,0.80,0.90},6)
 special.LevelDim=0.2 -- darkness. Do not set to 0
+special.dayHour=-1 -- <0 cycle, else hour of the day
 --TODO dragonfire
---TODO daylight
 --materials