Having trouble with math for a heart bar

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#1

Hello everyone,

I am trying to make a health bar that uses hearts. I’m trying to use 3 frames and clip decedents to give the illusion of separate images. This diagram is what I’m trying to achieve:

image
image742×194 35.8 KB

(These images overlap on each other, separated for visual example, highlighted grey is what will be visible)

I am having difficulty getting the positioning math correct- For my use I only need the maxhealth to be scalable to 10, but I imagine if done correctly you can use any amount of health
image

    local MaxHealth = Humanoid.MaxHealth
	local Health = Humanoid.Health
	if MaxHealth%2== 0 then
		
		script.Parent.Health.Position = UDim2.new(-1+(MaxHealth)/10,0,0,0)
		script.Parent.Health.HealthClip.Position = UDim2.new(-1+Health/10,0,0,0)
		script.Parent.Health.HealthClip.HealthShow.Position = UDim2.new(-1+MaxHealth/10,0,0,0)
	else
		--Odd numbers positiong is different to leave half a heart
		script.Parent.Health.Position = UDim2.new(-0.9+(MaxHealth)/10,0,0,0)
		script.Parent.Health.HealthClip.Position = UDim2.new(-0.9+Health/10,0,0,0)
		script.Parent.Health.HealthClip.HealthShow.Position = UDim2.new(0.9+MaxHealth/10,0,0,0)
	end
#2

I don’t think you need two cases here. Seems to me that all you really need to do is divide current health by max health, which would be on a scale of 0 to 1.

local MaxHealth = 10
local Health = 9
print(Health / MaxHealth) -- 0.9

Since you need this frame to move in a negative direction you just add this number to -1 like you’re doing in your code currently.

local MaxHealth = 10
local Health = 9
print(-1 + (Health / MaxHealth)) -- -0.1

Assuming that the hearts are positioned correctly within your frame then this should just work. Your code ends up being

local MaxHealth = Humanoid.MaxHealth
local Health = Humanoid.Health

local Offset = -1 + (Heath / MaxHealth)

script.Parent.Health.Position = UDim2.fromScale(Offset, 0)
script.Parent.Health.HealthClip.Position = UDim2.fromScale(Offset, 0)
script.Parent.Health.HealthClip.HealthShow.Position = UDim2.fromScale(Offset, 0)

If your hearts aren’t positioned correctly then let me know and we can go from there.

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#3

This works if my max health is 10 - How would I make it so it works if max health is another integer?

#4

just change Humanoid.MaxHealth and it should still work

offset could also be defined like local Offset = Health / MaxHealth - 1

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