How to Detect Water Collisions with Custom Rig

[RamonPIayz (ramon)]

Hello all! I had a particular question about how to detect water collisions for custom swimming idle, and motion animations. My rig currently does not “detect” when it is swimming, which I find unusual. I was wondering if there was any other way to be able to go about this, or if I could fix anything to my rig. Thank you all.
Code:

local humanoid = script.Parent:WaitForChild("Humanoid", 2)

local humanoidRootPart = script.Parent:WaitForChild("HumanoidRootPart", 2)

local animator = humanoid:WaitForChild("Animator", 2)

local idleAnimation = nil

local runAnimation = nil

local swimAnimationIdle = nil

local swimAnimation = nil

local checkTrue = false

if game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(script.Parent.Name) then

	local fetNameCut = script.Parent.Name

	local originalName = script.Parent.Name

	if string.find( script.Parent.Name,"Lustrous") ~= nil then
		for i, v in pairs(string.split(script.Parent.Name,"Lustrous")) do
			if v ~= nil then
				fetNameCut = v
			end
		end
	end

	idleAnimation = animator:LoadAnimation(game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut).Idle)

	runAnimation = animator:LoadAnimation(game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut).Running)

	if game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut):FindFirstChild("SwimmingIdle") then
		if game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut):FindFirstChild("SwimmingIdle").AnimationId ~= "" or nil then
			swimAnimationIdle = animator:LoadAnimation(game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut).SwimmingIdle)
		end
	end
	
	if game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut):FindFirstChild("SwimmingSwim") then
		if game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut):FindFirstChild("SwimmingSwim").AnimationId ~= "" or nil then
			swimAnimation = animator:LoadAnimation(game.ReplicatedStorage.FeteriansAnimations:FindFirstChild(fetNameCut).SwimmingSwim)
		end
	end

	humanoid.Running:Connect(function(speed)	
		
		if script.Parent.Humanoid.FloorMaterial ~= Enum.Material.Air then
			if speed > 0 then
				if humanoid.WalkSpeed ~= 0 then
					idleAnimation:Stop()

					if swimAnimation ~= nil then
						swimAnimation:Stop()
					end
					
					if swimAnimationIdle ~= nil then
						swimAnimationIdle:Stop()
					end

					runAnimation:Play()
				elseif humanoid.WalkSpeed <= 0 then
					runAnimation:Stop()

					if swimAnimation ~= nil then
						swimAnimation:Stop()
					end
					
					if swimAnimationIdle ~= nil then
						swimAnimationIdle:Stop()
					end

					idleAnimation:Stop()
				end
			else
				if humanoid.WalkSpeed ~= 0 then
					runAnimation:Stop()	

					if swimAnimation ~= nil then
						swimAnimation:Stop()
					end				
					
					if swimAnimationIdle ~= nil then
						swimAnimationIdle:Stop()
					end

					idleAnimation:Play()

					repeat
						if script.Parent:GetAttribute("Activity") == false then
							checkTrue = false

							for i = 1, 5, 1 do
								task.wait(1)

								if speed > 0 then
									checkTrue = true

									break
								end

								if script.Parent:GetAttribute("Activity") == true then
									break
								end
							end

							if checkTrue == true then						
								break
							end

							if script.Parent:GetAttribute("Activity") == true then
								break
							end

							if script.Parent:GetAttribute("Activity") == false then

								if game.ReplicatedStorage.FeteriansAnimations.Activities.Sleeping:FindFirstChild("Sleeping"..script.Parent.Name) then								
									for i, v in pairs(script.Parent:GetDescendants()) do
										if v:IsA("MeshPart") then										
											v.TextureID = game.ReplicatedStorage.FeteriansAnimations.Activities.Sleeping:FindFirstChild("Sleeping"..script.Parent.Name).Value
										end
									end
								end

								task.wait(0.25)

								if string.find(script.Parent.Name,"Lustrous") ~= nil then									
									for i, v in pairs(script.Parent:GetDescendants()) do
										if v:IsA("MeshPart") then
											v.TextureID = game.ReplicatedStorage.LustrousTextures:FindFirstChild("Lustrous"..fetNameCut).Value
										end
									end
								else
									for i, v in pairs(game.ReplicatedStorage.FeteriansModels:FindFirstChild(fetNameCut):GetChildren()) do
										if v:IsA("MeshPart") then
											for index, value in pairs(script.Parent:GetDescendants()) do
												if value:IsA("MeshPart") then
													value.TextureID = v.TextureID
												end
											end
										end
									end
								end
							end
						end

						if script.Parent:GetAttribute("Activity") == true then
							if script.Parent:GetAttribute("ActivityType") == "Sleeping" then
								if game.ReplicatedStorage.FeteriansAnimations.Activities.Sleeping:FindFirstChild("Sleeping"..originalName) then								
									for i, v in pairs(script.Parent:GetDescendants()) do
										if v:IsA("MeshPart") then										
											if v.TextureID ~= game.ReplicatedStorage.FeteriansAnimations.Activities.Sleeping:FindFirstChild("Sleeping"..originalName).Value then
												v.TextureID = game.ReplicatedStorage.FeteriansAnimations.Activities.Sleeping:FindFirstChild("Sleeping"..originalName).Value
											end
										end
									end
								end
							end
						end

						task.wait(0.1)

					until speed > 0

				elseif humanoid.WalkSpeed <= 0 then
					runAnimation:Stop()
					idleAnimation:Stop()
				end	
			end
		else	
			if swimAnimation ~= nil then
				runAnimation:Stop()
				idleAnimation:Stop()
				
				swimAnimation:Play()
			end
		end
	end)
	
end

Pictures:

[Nyonic]

You could do this with raycasting just cast a ray from characters position or a little above down and see if it hits terrain water if so then they should be swimming you may need to tweak it a bit on distance of the ray etc

[RamonPIayz (ramon)]

Thank you so much for your help, it is greatly appreciated!!

[alpharetzy2 (alpharetzyfake2)]

Where this script should be parented at?