From f416e6b792e5dda143f60b7a2724db6b3ec33d75 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Fri, 28 Dec 2012 22:55:35 +0000
Subject: Support for rendering globes with rings, removed hardcoded 'corona'
 prefix for corona textures, added support for projectile fire sounds.

---
 src/render/draw.cc      | 66 +++++++++++++++++++++++++++++++++++++++++++++++--
 src/render/draw.h       |  5 +++-
 src/render/render.cc    | 12 +++++++--
 src/render/renderext.cc |  9 ++++++-
 4 files changed, 86 insertions(+), 6 deletions(-)

(limited to 'src/render')

diff --git a/src/render/draw.cc b/src/render/draw.cc
index 46d0906..a49b017 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -239,6 +239,7 @@ void draw_globe_corona(const math::Vector3f location, const math::Color & color,
 		if (a > 0.1f) {
 			gl::enable(GL_BLEND);
 			gl::disable(GL_DEPTH_TEST);
+			gl::depthmask(GL_FALSE);	// disable depth buffer writes
 			gl::enable(GL_TEXTURE_2D);
 			
 			Textures::bind(corona_id);
@@ -263,11 +264,66 @@ void draw_globe_corona(const math::Vector3f location, const math::Color & color,
 			
 			gl::disable(GL_TEXTURE_2D);
 			gl::enable(GL_DEPTH_TEST);
+			gl::depthmask(GL_TRUE);	// enable depth buffer writes
 			gl::disable(GL_BLEND);
 		}
 	}	
 }
 
+void draw_globe_rings(const math::Color & color, const size_t rings_id)
+{
+	gl::color(color);
+	
+	gl::enable(GL_BLEND);
+	//gl::disable(GL_CULL_FACE);
+	gl::depthmask(GL_FALSE);	// disable depth buffer writes
+	
+	Textures::bind(rings_id);
+	
+	gl::begin(gl::Quads);
+	
+	// top
+	gl::normal(0.0f, 0.0f, 1.0f);
+	gl::texcoord(0, 0);
+	gl::vertex(-2.0f, -2.0f, 0.0f);
+	
+	gl::normal(0.0f, 0.0f, 1.0f);
+	gl::texcoord(1, 0);
+	gl::vertex(2.0f, -2.0f, 0.0f);
+	
+	gl::normal(0.0f, 0.0f, 1.0f);
+	gl::texcoord(1, 1);
+	gl::vertex(2.0f, 2.0f, 0.0f);
+	
+	gl::normal(0.0f, 0.0f, 1.0f);
+	gl::texcoord(0, 1);
+	gl::vertex(-2.0f, 2.0f, 0.0f);
+	
+	//bottom		
+	gl::normal(0.0f, 0.0f, -1.0f);
+	gl::texcoord(0, 1);
+	gl::vertex(-2.0f, 2.0f, 0.0f);	
+	
+	gl::normal(0.0f, 0.0f, -1.0f);
+	gl::texcoord(1, 1);
+	gl::vertex(2.0f, 2.0f, 0.0f);
+
+	gl::normal(0.0f, 0.0f, -1.0f);
+	gl::texcoord(1, 0);
+	gl::vertex(2.0f, -2.0f, 0.0f);
+
+	gl::normal(0.0f, 0.0f, -1.0f);
+	gl::texcoord(0, 0);
+	gl::vertex(-2.0f, -2.0f, 0.0f);
+	
+	gl::end();
+	
+	gl::depthmask(GL_TRUE);	// enable depth buffer writes
+	
+	//gl::enable(GL_CULL_FACE);
+	gl::disable(GL_BLEND);
+}
+
 void draw_pass_globes()
 {
 	// FIXME is this ever reset ?
@@ -311,17 +367,23 @@ void draw_pass_globes()
 		}
 		
 		gl::multmatrix(globe->axis());
-	
 		if (globe->rotationspeed()) {
 			float angle = math::degrees360f(core::application()->time() * globe->rotationspeed());
 			gl::rotate(angle, math::Vector3f::Zaxis());
 		}
 		
 		draw_sphere(globe->color(), radius);
+		
+		if (globe->rings_id()) {	
+			if (!globe->texture_id()) {
+				gl::enable(GL_TEXTURE_2D);
+			}			
+			draw_globe_rings(globe->color(), globe->rings_id());
+		}
 
 		gl::pop();
 		
-		if (globe->texture_id()) {
+		if (globe->texture_id() || globe->rings_id()) {
 			gl::disable(GL_TEXTURE_2D);
 		}
 		
diff --git a/src/render/draw.h b/src/render/draw.h
index 122d7cd..a3b4d30 100644
--- a/src/render/draw.h
+++ b/src/render/draw.h
@@ -30,9 +30,12 @@ void reset();
 /// draw a sphere
 void draw_sphere(const math::Color & color, float radius);
 
-/// draw a corona
+/// draw globe corona
 void draw_globe_corona(const math::Vector3f location, const math::Color & color, const float radius, const size_t corona_id);
 
+/// draw globe rings
+void draw_globe_rings(const math::Color & color, const size_t rings_id);
+
 /// draw mode lights and flares
 void draw_model_lights(
 	model::Model *model, const float scale,
diff --git a/src/render/render.cc b/src/render/render.cc
index 794d777..bf14e7d 100644
--- a/src/render/render.cc
+++ b/src/render/render.cc
@@ -154,9 +154,13 @@ void unload()
 				globe->set_texture_id(0);
 			}
 			if (globe->corona_id()) {
-				render::Textures::unload("textures/corona/" + globe->coronaname());
+				render::Textures::unload("textures/" + globe->coronaname());
 				globe->set_corona_id(0);
 			}
+			if (globe->rings_id()) {
+				render::Textures::unload("textures/" + globe->ringsname());
+				globe->set_rings_id(0);
+			}
 		}
 
 		if (ext_render(entity)) {
@@ -182,9 +186,13 @@ void clear()
 				globe->set_texture_id(0);
 			}
 			if (globe->corona_id()) {
-				render::Textures::unload("textures/corona/" + globe->coronaname());
+				render::Textures::unload("textures/" + globe->coronaname());
 				globe->set_corona_id(0);
 			}
+			if (globe->rings_id()) {
+				render::Textures::unload("textures/" + globe->ringsname());
+				globe->set_rings_id(0);
+			}
 		}
 
 		if (ext_render(entity)) {
diff --git a/src/render/renderext.cc b/src/render/renderext.cc
index 0f781c5..1dc82f8 100644
--- a/src/render/renderext.cc
+++ b/src/render/renderext.cc
@@ -95,11 +95,18 @@ RenderExt::RenderExt(core::Entity *entity) : core::Extension(core::Extension::Re
 		}
 		
 		if (!globe->corona_id() && globe->coronaname().size()) {
-			globe->set_corona_id(Textures::bind("textures/corona/" + globe->coronaname()));
+			globe->set_corona_id(Textures::load("textures/" + globe->coronaname()));
 			if (!globe->corona_id()) {
 				globe->set_coronaname("");
 			}
 		}
+		
+		if (!globe->rings_id() && globe->ringsname().size()) {
+			globe->set_rings_id(Textures::load("textures/" + globe->ringsname()));
+			if (!globe->rings_id()) {
+				globe->set_ringsname("");
+			}
+		}
 	}
 }
 
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