From a8a92cee21e1e5fba3d312bf3043b4e1b96d5576 Mon Sep 17 00:00:00 2001
From: Evan Goers <mega@osirion.org>
Date: Sun, 8 Jan 2012 11:16:35 +0000
Subject: Implemented zone ambient color usage in renderer.

---
 src/core/zone.cc        | 6 +++---
 src/game/intro/intro.cc | 5 ++++-
 src/render/draw.cc      | 8 ++++++++
 src/render/state.cc     | 5 ++---
 4 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/src/core/zone.cc b/src/core/zone.cc
index f33fc60..8050716 100644
--- a/src/core/zone.cc
+++ b/src/core/zone.cc
@@ -118,7 +118,7 @@ void Zone ::clear()
 
 Zone::Zone(std::string const & label) : 
 	Label(label),
-	zone_ambient_color(1.0f, 1.0f, 1.0f)
+	zone_ambient_color(0.1f, 0.1f, 0.1f)
 {
 	zone_id = 0;	
 	zone_defaultview = 0;
@@ -138,7 +138,7 @@ Zone::Zone(std::string const & label) :
 
 Zone::Zone(std::istream & is) : 
 	Label(),
-	zone_ambient_color(1.0f, 1.0f, 1.0f)
+	zone_ambient_color(0.1f, 0.1f, 0.1f)
 {
 	zone_id = 0;
 	zone_defaultview = 0;
@@ -276,7 +276,7 @@ void Zone::serialize_server_update(std::ostream & os) const
 void Zone::receive_server_update(std::istream &is)
 {
 	unsigned int id = 0;
-	float r = 1.0f, g = 1.0f, b = 1.0f;
+	float r = 0.1f, g = 0.1f, b = 0.1f;
 	std::string n;
 	char c;
 	
diff --git a/src/game/intro/intro.cc b/src/game/intro/intro.cc
index 25e4d59..f5f7ab2 100644
--- a/src/game/intro/intro.cc
+++ b/src/game/intro/intro.cc
@@ -93,9 +93,12 @@ bool Intro::load_world()
 				if (inifile.got_key_string("label", strval)) {
 					zone->set_label(strval);
 
-				} else  if (inifile.got_key_string("sky", strval)) {
+				} else if (inifile.got_key_string("sky", strval)) {
 					zone->set_sky(strval);
 
+				} else if (inifile.got_key_color("ambient", color)) {
+					zone->set_ambient_color(color);
+
 				} else if (inifile.got_key()) {
 					inifile.unknown_key();
 				}
diff --git a/src/render/draw.cc b/src/render/draw.cc
index c25a84a..f9076cc 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -87,6 +87,14 @@ void pass_prepare(float seconds)
 	// clear current list of globes
 	globes_list.clear();
 
+	// zone ambient light
+	GLfloat zone_ambient[4];
+	for (size_t i = 0; i < 3; i++) {
+		zone_ambient[i] = core::localplayer()->zone()->ambient_color()[i] * r_ambient->value();
+	}
+	zone_ambient[3] = 1.0f;
+	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, zone_ambient);
+
 	for (core::Zone::Content::iterator it = zone->content().begin(); it != zone->content().end(); it++) {
 		core::Entity *entity = (*it);
 
diff --git a/src/render/state.cc b/src/render/state.cc
index ab5eec4..f5cbb8d 100644
--- a/src/render/state.cc
+++ b/src/render/state.cc
@@ -137,8 +137,6 @@ void State::clear()
 	//gl::shademodel(GL_FLAT);
 
 	// lighting model
-	GLfloat global_ambient[] = { 0.1f, 0.1f, 0.1f, 1.0f };
-	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, global_ambient);
 	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
 
 	// color tracking
@@ -291,7 +289,8 @@ void State::use_material(const model::Material * material) {
 					gl::enable(GL_TEXTURE_GEN_S);
 					gl::enable(GL_TEXTURE_GEN_T);
 					gl::enable(GL_TEXTURE_GEN_R);
-				}			
+				}
+				//FIXME provide a fallback for zones without a skybox		
 			}
 	}
 	
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