From 4762531e81fc694008c2a3d2b3818d8972916ca5 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 22 Apr 2012 19:51:45 +0000
Subject: Draw weapon slot placeholder boxes.

---
 src/render/draw.cc  | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++--
 src/render/draw.h   |  4 ++++
 src/render/state.cc |  2 +-
 3 files changed, 63 insertions(+), 3 deletions(-)

diff --git a/src/render/draw.cc b/src/render/draw.cc
index ed9c6a6..efdbd84 100644
--- a/src/render/draw.cc
+++ b/src/render/draw.cc
@@ -87,8 +87,7 @@ int add_light(const math::Vector3f & location, float attenuation, const math::Co
 		if (!glIsEnabled(GL_LIGHT0 + i)) {
 			gllight = GL_LIGHT0 + i;
 			break;
-		}
-		else {
+		} else {
 			gllight = GL_LIGHT0;
 			return gllight;
 		}
@@ -833,6 +832,9 @@ void draw_pass_model_fragments()
 				ext_render(entity)->thrust()
 			);
 
+			if (entity->slots())
+				draw_slots(entity);
+			
 			if (r_bbox->value()) {
 				gl::color(entity->color());
 				draw_model_bbox(entity->model());
@@ -1294,6 +1296,60 @@ void draw(float seconds)
 	pass_reset_lights();
 }
 
+// draw weapon slots
+// weapons are drawn in model space coordinate, model transformations 
+void draw_slots(const core::Entity *entity)
+{
+	assert(entity->slots() && entity->model());
+	
+	gl::disable(GL_DEPTH_TEST);
+	
+	//const float modelscale = entity->radius() / entity->model()->radius();
+
+	gl::color(1.0f, 0.0f, 0.0f, 1.0f);
+
+	for(core::Slots::iterator it = entity->slots()->begin(); it != entity->slots()->end(); ++it) {
+		core::Slot *slot = (*it);
+		
+		math::Vector3f maxbox(slot->location());
+		math::Vector3f minbox(slot->location());
+
+		for (size_t i = 0; i < 3; i++) {
+			maxbox[i] += 0.025;
+			minbox[i] -= 0.025;
+		}
+
+		// top
+		gl::begin(gl::LineLoop);
+		gl::vertex(maxbox.x(), maxbox.y(), maxbox.z());
+		gl::vertex(minbox.x(), maxbox.y(), maxbox.z());
+		gl::vertex(minbox.x(), minbox.y(), maxbox.z());
+		gl::vertex(maxbox.x(), minbox.y(), maxbox.z());
+		gl::end();
+
+		// bottom
+		gl::begin(gl::LineLoop);
+		gl::vertex(maxbox.x(), maxbox.y(), minbox.z());
+		gl::vertex(minbox.x(), maxbox.y(), minbox.z());
+		gl::vertex(minbox.x(), minbox.y(), minbox.z());
+		gl::vertex(maxbox.x(), minbox.y(), minbox.z());
+		gl::end();
+
+		gl::begin(gl::Lines);
+		gl::vertex(maxbox.x(), maxbox.y(), maxbox.z());
+		gl::vertex(maxbox.x(), maxbox.y(), minbox.z());
+		gl::vertex(minbox.x(), maxbox.y(), maxbox.z());
+		gl::vertex(minbox.x(), maxbox.y(), minbox.z());
+		gl::vertex(minbox.x(), minbox.y(), maxbox.z());
+		gl::vertex(minbox.x(), minbox.y(), minbox.z());
+		gl::vertex(maxbox.x(), minbox.y(), maxbox.z());
+		gl::vertex(maxbox.x(), minbox.y(), minbox.z());
+		gl::end();
+	}
+
+	gl::enable(GL_DEPTH_TEST);
+}
+
 // draw HUD target world space geometry, like dock indicators
 void draw_target(const core::Entity *entity)
 {
diff --git a/src/render/draw.h b/src/render/draw.h
index f814168..a477d35 100644
--- a/src/render/draw.h
+++ b/src/render/draw.h
@@ -21,8 +21,12 @@ void pass_reset_lights();
 /// draw the world
 void draw(float seconds);
 
+/// draws model docks, used when targetting an entity
 void draw_target(const core::Entity *entity);
 
+/// draws entity weapon slots
+void draw_slots(const core::Entity *entity);
+
 /// reset
 void reset();
 
diff --git a/src/render/state.cc b/src/render/state.cc
index 8d1f3b0..06156a1 100644
--- a/src/render/state.cc
+++ b/src/render/state.cc
@@ -222,7 +222,7 @@ void State::use_material(const model::Material * material) {
 		return;
 	}
 
-	// Decal macro
+	// material has the decal flag set
 	if (material->flags() & model::Material::Decal) {
 		gl::enable(GL_POLYGON_OFFSET_FILL);
 		gl::enable(GL_ALPHA_TEST);
-- 
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