From ac67606ba12ae9935ac86adca9aaca4d3f460280 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sat, 14 Sep 2019 19:43:00 +0200
Subject: Randomly sample initial particle ages

---
 utility/particles.py | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/utility/particles.py b/utility/particles.py
index a75ed34..a7ef777 100644
--- a/utility/particles.py
+++ b/utility/particles.py
@@ -16,14 +16,13 @@ class Particles:
 
         if len(grid[0,:]) == 2:
             self.np_particles[:,0:2] = grid
-            self.np_particles[:,2:4] = 0
-            self.np_init_particles[:,0:2] = grid
-            self.np_init_particles[:,2:4] = 0
+            self.np_particles[:,2] = 0
+            self.np_particles[:,3] = numpy.random.sample(self.count)
+            self.np_init_particles = self.np_particles
         elif len(grid[0,:]) == 3:
             self.np_particles[:,0:3] = grid
-            self.np_particles[:,3]   = 0
-            self.np_init_particles[:,0:3] = grid
-            self.np_init_particles[:,3]   = 0
+            self.np_particles[:,3]   = numpy.random.sample(self.count)
+            self.np_init_particles = self.np_particles
 
         self.gl_particles = vbo.VBO(data=self.np_particles, usage=gl.GL_DYNAMIC_DRAW, target=gl.GL_ARRAY_BUFFER)
         self.gl_particles.bind()
-- 
cgit v1.2.3