sonic-bluestreak/sonic-radiance.love/core/modules/assets/fonts.lua

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2019-02-03 19:40:28 +01:00
-- assets/fonts :: the fonts object, which is a simple way to draw text with font.
-- Some of these functions are quite slow, so it's better to use them to generate
-- texture instead of text.
--[[
Copyright © 2019 Kazhnuz
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]
local Font = Object:extend()
-- Initilizing and configuring option
function Font:new(filename, size)
local filename = filename
self.font = love.graphics.newFont(filename, size)
self.filter = ""
self:setColor(1, 1, 1, 1)
self:setSpacing(false, 0)
self.align = "left"
end
function Font:set()
love.graphics.setFont(self.font)
end
function Font:setColor(r, g, b, a)
self.color = {}
self.color.r = r
self.color.g = g
self.color.b = b
self.color.a = a
end
function Font:setColorFromTable(color)
self.color = color
end
function Font:setSpacing(use_custom, size)
self.spacing = {}
self.spacing.active = use_custom
self.spacing.size = size
end
function Font:setAlign(align)
self.align = align
end
function Font:setFilter(filter)
self.filter = filter
end
function Font:setLineHeight(height)
self.font:setLineHeight(height)
end
-- get information functions
function Font:getHeight()
local font = self.font
return font:getHeight()
end
function Font:getWidth(string)
local spacing = 0
if (self.spacing.active == true) then
local charNumber = string.len(string)
spacing = self.spacing.size * charNumber
end
local width = self.font:getWidth(string) + spacing
return width
end
function Font:getColor()
return self.color
end
-- print functions
function Font:draw(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
-- draw text with color and effect applied
local limit = limit or 0
local align = align or self.align
self:applyFilter(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
love.graphics.setColor(self.color.r, self.color.g, self.color.b, self.color.a)
self:printf(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
end
function Font:print(text, x, y, align, r, sx, sy, ox, oy, kx, ky)
self:set()
if (self.spacing.active) then
utils.draw.printWithSpacing(text, self.spacing.size, align, x, y, r, sx, sy, ox, oy, kx, ky)
else
utils.draw.print(text, align, x, y, r, sx, sy, ox, oy, kx, ky)
end
end
function Font:printf(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
self:set()
if (limit > 0) then
love.graphics.printf(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
else
self:print(text, x, y, align, r, sx, sy, ox, oy, kx, ky)
end
end
-- FILTER SYSTEM
function Font:applyFilter(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
if self.filter == "shadow" then
self:applyFilterShadow(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
elseif self.filter == "border" then
self:applyFilterBorder(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
elseif self.filter == "doubleborder" then
self:applyFilterDoubleBorder(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
end
end
function Font:applyFilterShadow(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
love.graphics.setColor(0, 0, 0, 1)
self:printf(text, x+1, y+1, limit, align, align, r, sx, sy, ox, oy, kx, ky)
utils.draw.resetColor()
end
function Font:applyFilterBorder(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
love.graphics.setColor(0, 0, 0, 1)
self:printf(text, x-1, y-1, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x , y-1, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+1, y-1, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+1, y , limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x-1, y , limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x-1, y+1, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x , y+1, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+1, y+1, limit, align, r, sx, sy, ox, oy, kx, ky)
utils.draw.resetColor()
end
function Font:applyFilterDoubleBorder(text, x, y, limit, align, r, sx, sy, ox, oy, kx, ky)
love.graphics.setColor(0, 0, 0, 1)
self:printf(text, x-2, y-2, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x , y-2, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+2, y-2, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+2, y , limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x-2, y , limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x-2, y+2, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x , y+2, limit, align, r, sx, sy, ox, oy, kx, ky)
self:printf(text, x+2, y+2, limit, align, r, sx, sy, ox, oy, kx, ky)
utils.draw.resetColor()
end
return Font