From f71901eeab126bb4b7e2552dd2edf0b34632c683 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Mon, 26 May 2008 16:34:39 +0000
Subject: radar, aux text functions, restore original frustum, documentation
 update

---
 src/client/radar.cc | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 src/client/radar.cc

(limited to 'src/client/radar.cc')

diff --git a/src/client/radar.cc b/src/client/radar.cc
new file mode 100644
index 0000000..cc4257e
--- /dev/null
+++ b/src/client/radar.cc
@@ -0,0 +1,79 @@
+/*
+   client/rader.cc
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+#include "core/core.h"
+#include "client/radar.h"
+#include "client/video.h"
+#include "render/draw.h"
+#include "render/render.h"
+namespace client 
+{
+
+void Radar::draw()
+{
+	using namespace render;
+
+	if (!core::localcontrol())
+		return;
+
+	const float width = (float) video::width/4;
+	const float height = (float) video::height/4;
+
+	const float margin = 16;
+	const float xscale = 128;
+	const float yscale = xscale * height / width;
+
+	const float left = video::width - margin - width;
+	const float top = video::height -margin - height;
+
+	gl::disable(GL_TEXTURE_2D);
+	glEnableClientState(GL_VERTEX_ARRAY);
+	glEnableClientState(GL_NORMAL_ARRAY);
+	//glEnableClientState(GL_COLOR_ARRAY);
+
+	// draw the transparent radar background
+	gl::color(0.0f, 0.0f, 0.0f, 0.2f);
+	gl::begin(gl::Quads);
+	gl::vertex(left, top, 0.0f);
+	gl::vertex(left + width, top, 0.0f);
+	gl::vertex(left + width, top + height, 0.0f);
+	gl::vertex(left, top + height, 0.0f);
+	gl::end();
+	
+	math::Vector3f center(core::localcontrol()->location());
+
+	gl::begin(gl::Points);
+	std::map<unsigned int, core::Entity *>::iterator it;
+	for (it=core::Entity::registry.begin(); it != core::Entity::registry.end(); it++) {
+		core::Entity *entity = (*it).second;
+
+		math::Vector3f position(entity->state()->location() - center);
+		if ((position.x > -yscale) && (position.x < yscale) && (position.y > -xscale) && (position.y < xscale)) {
+			float x = left + width/2 - position.y / xscale * width/2;
+			float y = top + height/2 - position.x / xscale * width/2;
+			if (entity->type() == core::Entity::Globe) {
+				gl::end();
+				gl::push();
+				gl::translate(x, y, 0);
+				float r = entity->radius() / xscale * width/2;
+				draw_sphere(entity->color(), r);
+				gl::pop();
+				gl::begin(gl::Points);
+			} else {
+				gl::color(entity->color());
+				gl::vertex(x , y , 0);
+			}
+		}
+	}
+	gl::end();
+
+	gl::enable(GL_TEXTURE_2D);
+	glDisableClientState(GL_VERTEX_ARRAY);
+	glDisableClientState(GL_NORMAL_ARRAY);
+	//glDisableClientState(GL_COLOR_ARRAY);
+}
+
+}
-- 
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