Gravity fix

Samples/SimpleScene/Assets/Scripts/Physics.lua

@@ -1,62 +1,60 @@
 local ecs = require "ecs"
 
 local function rand_flt(from, to)
-	local maxNumber = 32767
+    local maxNumber = 32767
     return from + (math.random(maxNumber) / maxNumber) * (to - from)
 end
 
 local function move(it)
     for pos, vel, ent in ecs.each(it) do
         pos.x = pos.x + vel.x * it.delta_time
         pos.y = pos.y + vel.y * it.delta_time
-		pos.z = pos.z + vel.z * it.delta_time
+        pos.z = pos.z + vel.z * it.delta_time
     end
 end
 
 local function gravity(it)
     for pos, vel, grav, plane, ent in ecs.each(it) do
         local planeEpsilon = 0.1
-
-		if plane.x * pos.x + plane.y * pos.y + plane.z * pos.z < plane.w + planeEpsilon then
-			do return end
-		end
-
-		vel.x = vel.x + grav.x * it.delta_time
-        vel.y = vel.y + grav.y * it.delta_time
-		vel.z = vel.z + grav.z * it.delta_time
+
+        if plane.x * pos.x + plane.y * pos.y + plane.z * pos.z > plane.w + planeEpsilon then
+            vel.x = vel.x + grav.x * it.delta_time
+            vel.y = vel.y + grav.y * it.delta_time
+            vel.z = vel.z + grav.z * it.delta_time
+        end
     end
 end
 
 local function FrictionSystem(it)
     for vel, friction, ent in ecs.each(it) do
         vel.x = vel.x - vel.x * friction.value * it.delta_time
-		vel.y = vel.y - vel.y * friction.value * it.delta_time
-		vel.z = vel.z - vel.z * friction.value * it.delta_time
+        vel.y = vel.y - vel.y * friction.value * it.delta_time
+        vel.z = vel.z - vel.z * friction.value * it.delta_time
     end
 end
 
 local function ShiverSystem(it)
     for pos, shiver, ent in ecs.each(it) do
         pos.x = pos.x + rand_flt(-shiver.value, shiver.value)
-		pos.y = pos.y + rand_flt(-shiver.value, shiver.value)
-		pos.z = pos.z + rand_flt(-shiver.value, shiver.value)
+        pos.y = pos.y + rand_flt(-shiver.value, shiver.value)
+        pos.z = pos.z + rand_flt(-shiver.value, shiver.value)
     end
 end
 
 local function BounceSystem(it)
     for pos, vel, plane, bounciness, ent in ecs.each(it) do
         local dotPos = plane.x * pos.x + plane.y * pos.y + plane.z * pos.z
-		local dotVel = plane.x * vel.x + plane.y * vel.y + plane.z * vel.z
-		
-		if dotPos < plane.w then
-			pos.x = pos.x - (dotPos - plane.w) * plane.x
-			pos.y = pos.y - (dotPos - plane.w) * plane.y
-			pos.z = pos.z - (dotPos - plane.w) * plane.z
+        local dotVel = plane.x * vel.x + plane.y * vel.y + plane.z * vel.z
+
+        if dotPos < plane.w then
+            pos.x = pos.x - (dotPos - plane.w) * plane.x
+            pos.y = pos.y - (dotPos - plane.w) * plane.y
+            pos.z = pos.z - (dotPos - plane.w) * plane.z
 
-			vel.x = vel.x - (1.0 + bounciness.value) * plane.x * dotVel
-			vel.y = vel.y - (1.0 + bounciness.value) * plane.y * dotVel
-			vel.z = vel.z - (1.0 + bounciness.value) * plane.z * dotVel
-		end
+            vel.x = vel.x - (1.0 + bounciness.value) * plane.x * dotVel
+            vel.y = vel.y - (1.0 + bounciness.value) * plane.y * dotVel
+            vel.z = vel.z - (1.0 + bounciness.value) * plane.z * dotVel
+        end
     end
 end
 
@@ -65,4 +63,3 @@ ecs.system(gravity, "grav", ecs.OnUpdate, "Position, Velocity, Gravity, BouncePl
 ecs.system(FrictionSystem, "FrictionSystem", ecs.OnUpdate, "Velocity, FrictionAmount")
 ecs.system(ShiverSystem, "ShiverSystem", ecs.OnUpdate, "Position, ShiverAmount")
 ecs.system(BounceSystem, "BounceSystem", ecs.OnUpdate, "Position, Velocity, BouncePlane, Bounciness")
-