Added gwaterlib.applyForceField function

Fixed gwaterlib.setParameter function

lua/starfall/libs_cl/gwater2module.lua

@@ -47,7 +47,7 @@ local function main(instance)
 	-- @param number value
 	function gwater_library.setParameter(parameter, value)
 		if LocalPlayer() == instance.player then
-			SetGwaterParameter(parameter, value)
+			gwater2.solver:SetParameter(parameter, value)
 		end
 	end
 
@@ -60,6 +60,26 @@ local function main(instance)
 			return gwater2.solver:GetParameter(parameter)
 		end
 	end
+
+	--- Applies a force field to GWater particles
+	-- @client
+	-- @param Vector pos The position of the force field
+	-- @param number radius The radius of the force field
+	-- @param number strength The strength of the force field
+	-- @param number mode The mode of the force field. 0 = Attraction, 1 = Repulsion, 2 = Vortex
+	-- @param boolean linear Whether the force field should be the same strength regardless of distance
+	function gwater_library.applyForceField(pos, radius, strength, mode, linear)
+		if LocalPlayer() == instance.player then
+			gwater2.solver:AddForceField(vunwrap(pos), radius, strength, mode, linear)
+		end
+	end
+
+	--- Called before the GWater solver ticks
+	-- You should use this hook to apply forces to the particles
+	-- @name gwater2_pretick
+	-- @class hook
+	-- @client
+	SF.hookAdd("gwater2_pretick")
 end
 
 return main