utils.lua

-- Draw utils

---Print the `text` with drop-shadow.
---@param text string String to print
---@param x number X position of the text
---@param y number Y position of the text
---@param r? number Red component of the color
---@param g? number Green component of the color
---@param b? number Blue component of the color
---@param sR? number Red component of the shadow color
---@param sG? number Green component of the shadow color
---@param sB? number Blue component of the shadow color
function PrintShadow(text, x, y, r, g, b, sR, sG, sB)
	if sR and sG and sB then
		love.graphics.setColor(sR, sG, sB)
	else
		love.graphics.setColor(0.25, 0.25, 0.25)
	end
	love.graphics.print(text, x + 2, y + 2)
	if r and g and b then
		love.graphics.setColor(r, g, b)
	else
		love.graphics.setColor(1, 1, 1)
	end
	love.graphics.print(text, x, y)
end

---love.graphics.setColor but uses hex string.
---Yoinked from https://love2d.org/wiki/love.math.colorFromBytes#Example
---@param rgba string Hex string (e.g. "#RRGGBBAA")
function SetColorHEX(rgba)
	assert(rgba:sub(1, 1) == "#", "Hex string starts with `#`!")
	assert(#rgba >= 7, "Too short hex color!")
	assert(#rgba <= 9, "Too long hex color!")
	local rb = tonumber(string.sub(rgba, 2, 3), 16)
	local gb = tonumber(string.sub(rgba, 4, 5), 16)
	local bb = tonumber(string.sub(rgba, 6, 7), 16)
	local ab = tonumber(string.sub(rgba, 8, 9), 16) or nil
	love.graphics.setColor(love.math.colorFromBytes(rb, gb, bb, ab))
end

-- Enum utils

function ProtectEnum(e)
	setmetatable(e, {
		__newindex = function()
			error("Changing values of enums in not allowed!")
		end,
	})
end