MAJOR rendering overhaul. Snow deformation, persistent light, flowmap out. Also ECS architexture overhaul

src/systems/snow.rs

@@ -0,0 +1,13 @@
+use crate::snow::SnowLayer;
+use crate::world::World;
+
+pub fn snow_system(world: &World, snow_layer: &mut SnowLayer, noclip: bool)
+{
+    let camera_pos = world.active_camera_position();
+    let player_pos = world.player_position();
+    if !noclip
+    {
+        snow_layer.deform_at_position(player_pos, 1.5, 10.0);
+    }
+    snow_layer.update(camera_pos);
+}