From dfb57c177538bf4ac9c94b596fcb17ef8f272968 Mon Sep 17 00:00:00 2001
From: Allanis <allanis@saracraft.net>
Date: Sun, 10 Mar 2013 16:40:48 +0000
Subject: [PATCH] [Add] Map will draw hyperspace paths. :D

---
 src/map.c | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/src/map.c b/src/map.c
index 427c74a..aff72b7 100644
--- a/src/map.c
+++ b/src/map.c
@@ -120,7 +120,7 @@ static void map_update(void) {
 
 // Render the map as a custom widget.
 static void map_render(double bx, double by, double w, double h) {
-	int i;
+	int i, j;
 	double x, y, r;
 	StarSystem* sys;
 
@@ -136,14 +136,36 @@ static void map_render(double bx, double by, double w, double h) {
 		glVertex2d(bx+w,	by);
 	glEnd();
 
-	//COLOUR(cYellow);
 	// Render the star systems.
 	for(i = 0; i < systems_nstack; i++) {
-		if(&systems_stack[i] == cur_system) COLOUR(cRadar_targ);
+		sys = &systems_stack[i];
+
+		// Draw the system.
+		if(sys == cur_system) COLOUR(cRadar_targ);
+		else if(sys->nplanets == 0) COLOUR(cInert);
 		else COLOUR(cYellow);
-			gl_drawCircleInRect(x + systems_stack[i].pos.x,
-						y + systems_stack[i].pos.y,
+			gl_drawCircleInRect(x + sys->pos.x,
+						y + sys->pos.y,
 						r, bx, by, w, h);
+
+			// Draw the hyperspace paths.
+			glShadeModel(GL_SMOOTH);
+			for(j = 0; j < sys->njumps; j++) {
+				// Cheaply use transparency instead of actually
+				// calculating from x to y the line must go. :)
+				glBegin(GL_LINE_STRIP);
+				COLOUR(cTrans);
+				glVertex2d(x+sys->pos.x, y+sys->pos.y);
+				COLOUR(cInert);
+				glVertex2d(
+							x+sys->pos.x+(systems_stack[sys->jumps[j]].pos.x-sys->pos.x)/2.,
+							y+sys->pos.y+(systems_stack[sys->jumps[j]].pos.y-sys->pos.y)/2.);
+				COLOUR(cTrans);
+				glVertex2d(x+systems_stack[sys->jumps[j]].pos.x,
+							y+systems_stack[sys->jumps[j]].pos.y);
+				glEnd();
+			}
+			glShadeModel(GL_FLAT);
 	}
 	// Selected planet.
 	sys = &systems_stack[map_selected];