Add font.lua

atlas.lua

@@ -5,7 +5,7 @@ local Object = require "lib/classic"
 local Atlas = Object:extend()
 
 ---Creates a new atlas.
----@param image love.Image
+---@param image love.Image The source image for the atlas.
 ---@param sw integer The width of each sprite.
 ---@param sh integer The height of each sprite.
 function Atlas:new(image, sw, sh)

font.lua

@@ -0,0 +1,39 @@
+local Atlas = require "atlas"
+
+---A set of character sprites that can be drawn as strings.
+local Font = Atlas:extend()
+
+---Creates a new font.
+---@param image love.Image The source image for the atlas.
+---@param sw integer The width of each sprite.
+---@param sh integer The height of each sprite.
+---@param characters string[] A list of characters with indices corresponding to each sprite.
+function Font:new(image, sw, sh, characters)
+  Font.super.new(self, image, sw, sh)
+
+  ---A map of characters to sprites.
+  self.characters = {}
+
+  for sprite, ch in ipairs(characters) do
+    if ch then
+      self.characters[ch] = sprite
+    end
+  end
+end
+
+---Draws a string with this font.
+function Font:draw(text, x, y)
+  local x = x or 0
+  local y = y or 0
+
+  for i = 1, #text do
+    local c = text:sub(i, i)
+    local sprite = self.characters[c]
+    if sprite then
+      local x = (i - 1) * self.sw + x
+      love.graphics.draw(self.meshes[sprite], x, y)
+    end
+  end
+end
+
+return Font

main.lua

@@ -1,9 +1,10 @@
 local Atlas = require "atlas"
+local Font = require "font"
 local push = require "lib/push"
 
 local gameWidth, gameHeight = 320, 200
 local windowWidth, windowHeight = love.window.getDesktopDimensions()
-windowWidth, windowHeight = windowWidth*.7, windowHeight*.7 --make the window a bit smaller than the screen itself
+windowWidth, windowHeight = windowWidth * .7, windowHeight * .7 --make the window a bit smaller than the screen itself
 local pushOpts = {
   fullscreen = false,
   resizable = true,
@@ -79,21 +80,25 @@ end
 function love.load()
   Menu = MultiMenu({ "Fight", "Use", "Pkmn", "Flee" })
 
-  local font = love.graphics.newImage("assets/small-blocky-font.png")
-  Font = Atlas(font, 8, 8)
+  local blockyFont = love.graphics.newImage("assets/small-blocky-font.png")
+
+  local blockFontChars = {
+    " ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "×", "+", ",", "-", ".", "/", --first line
+    "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";", "<", "=", ">", "?",  --second line
+    "@", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",  --third line
+    "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "[", "\\", "]", "^", "_", --fourth line
+    "@", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",  --third line
+    "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "{", "|", "}", "~",       --fourth line
+  }
+
+  BlockyFont = Font(blockyFont, 8, 8, blockFontChars)
 end
 
 function love.draw()
   push:start()
 
   Menu:draw()
-
-  for sprite = 1,#Font.meshes do
-    local width = 12
-    local row = math.floor(sprite / width)
-    local col = sprite - row * width
-  	love.graphics.draw(Font.meshes[sprite], col * 10, row * 10)
-  end
+  BlockyFont:draw("Hello, world!")
 
   push:finish()
 end