fixed examples

examples-not-running/simple_example_1.py → examples/simple_example_1.py

@@ -20,5 +20,6 @@ env.reset()
 
 env_renderer = RenderTool(env, gl="PILSVG")
 env_renderer.renderEnv(show=True)
+env_renderer.renderEnv(show=True)
 
 input("Press Enter to continue...")

examples-not-running/simple_example_2.py → examples/simple_example_2.py

@@ -34,5 +34,6 @@ env.reset()
 
 env_renderer = RenderTool(env, gl="PILSVG")
 env_renderer.renderEnv(show=True)
+env_renderer.renderEnv(show=True)
 
 input("Press Enter to continue...")

examples-not-running/simple_example_3.py → examples/simple_example_3.py

@@ -23,6 +23,7 @@ for i in range(env.get_num_agents()):
 
 env_renderer = RenderTool(env, gl="PIL")
 env_renderer.renderEnv(show=True, frames=True)
+env_renderer.renderEnv(show=True, frames=True)
 
 print("Manual control: s=perform step, q=quit, [agent id] [1-2-3 action] \
        (turnleft+move, move to front, turnright+move)")