From 1f5c05ac77c6a977cb21eac8b1a161c21b46b44f Mon Sep 17 00:00:00 2001
From: Allanis <allanis@saracraft.net>
Date: Wed, 15 May 2013 22:36:10 +0100
Subject: [PATCH] [Change] It's about time I optimised space_render.

---
 src/space.c | 34 +++++++++++++++++++---------------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/src/space.c b/src/space.c
index 5fa3ba3..bcbdcca 100644
--- a/src/space.c
+++ b/src/space.c
@@ -958,7 +958,7 @@ int space_load(void) {
 void space_render(double dt) {
   int i;
   unsigned int t, timer;
-  double x, y, m;
+  double x, y, m, b;
 
   glMatrixMode(GL_MODELVIEW);
   glPushMatrix(); // Translation matrix.
@@ -992,26 +992,30 @@ void space_render(double dt) {
     glShadeModel(GL_FLAT);
 
   } else {
-    glBegin(GL_POINTS);
-
-    for(i = 0; i < nstars; i++) {
-      if(!paused && !toolkit) {
-        // Update position.
-        if(!player_isFlag(PLAYER_DESTROYED)) {
-          stars[i].x -= VX(player->solid->vel)/(13.-10.*stars[i].brightness)*dt;
-          stars[i].y -= VY(player->solid->vel)/(13.-10.*stars[i].brightness)*dt;
-        }
-        // Scroll those stars bitch!
+    glBegin(GL_POINTS); // Normal rendering.
+    if(!paused && !player_isFlag(PLAYER_DESTROYED)) { // Update position.
+      for(i = 0; i < nstars; i++) {
+        b = 13.-10.*stars[i].brightness;
+        stars[i].x -= player->solid->vel.x/b*dt;
+        stars[i].y -= player->solid->vel.y/b*dt;
+        
+        // Check for boundaries.
         if(stars[i].x > gl_screen.w + STAR_BUF) stars[i].x = -STAR_BUF;
         else if(stars[i].x < -STAR_BUF) stars[i].x = gl_screen.w + STAR_BUF;
         if(stars[i].y > gl_screen.h + STAR_BUF) stars[i].y = -STAR_BUF;
         else if(stars[i].y < -STAR_BUF) stars[i].y = gl_screen.h + STAR_BUF;
+
+        // Render.
+        glColor4d(1., 1., 1., stars[i].brightness);
+        glVertex2d(stars[i].x, stars[i].y);
+      }
+    } else { // Just render.
+      for(i = 0; i < nstars; i++) {
+        glColor4d(1., 1., 1., stars[i].brightness);
+        glVertex2d(stars[i].x, stars[i].y);
       }
-      // Render.
-      glColor4d(1., 1., 1., stars[i].brightness);
-      glVertex2d(stars[i].x, stars[i].y);
     }
-    glEnd();
+    glEnd(); // GL_POINTS
   }
   glPopMatrix(); // Translation matrix.
 }