small changes

justfile

@@ -0,0 +1,4 @@
+alias r := run
+
+run:
+    love .

main.lua

@@ -10,55 +10,32 @@ function love.load()
     }
     
     -- generate the world and load the files
-    world.new(10, 10)
+    world.new(20, 20)
     world.loadTiles()
-    
-    -- store the mouse position
-    mouse = {
-        x = love.mouse.getX(),
-        y = love.mouse.getY()
-    }
 end
 
 -- love's update function
 function love.update(dt)
-    -- get the current mouse location
-    local mouseNow = {
-        x = love.mouse.getX(),
-        y = love.mouse.getY()
-    }
-    
-    -- if mouse is pressed move the offset
-    if love.mouse.isDown(1) then 
-        local mouseDelta = {
-            x = mouse.x - mouseNow.x,
-            y = mouse.y - mouseNow.y,
-        }
 
-        offset.x = offset.x - mouseDelta.x
-        offset.y = offset.y - mouseDelta.y
-    end
-
-    mouse = mouseNow
 end
 
 -- love's key press funciton
 function love.keypressed(key, scanCode, isRepeat)
     -- arrow keys for moving offset
     if key == "left"  then
-        offset.x = offset.x - 16
+        offset.x = offset.x + 16
     end
 
     if key == "right" then
-        offset.x = offset.x + 16
+        offset.x = offset.x - 16
     end
 
     if key == "up" then
-        offset.y = offset.y - 16
+        offset.y = offset.y + 16
     end
     
     if key == "down" then
-        offset.y = offset.y + 16
+        offset.y = offset.y - 16
     end
 end
 

world.lua

@@ -7,6 +7,8 @@ local world = {}
     function world.new(width, height)
         world.width = width
         world.height = height
+        world.hover = nil
+        world.select =  love.graphics.newImage("img/tiles/select.png")
 
         for x = 1, world.width do
             world[x] = {}
@@ -18,11 +20,11 @@ local world = {}
 
     -- load the tile files
     function world.loadTiles()
-        world.grass = love.graphics.newImage("img/tiles/grass.png")
-        world.dirt = love.graphics.newImage("img/tiles/dirt.png")
-        world.water = love.graphics.newImage("img/tiles/water.png")
-        world.nothing = love.graphics.newImage("img/tiles/nothing.png")
-        world.select = love.graphics.newImage("img/tiles/select.png")
+        world.tiles = {}
+        world.tiles.grass = love.graphics.newImage("img/tiles/grass.png")
+        world.tiles.dirt = love.graphics.newImage("img/tiles/dirt.png")
+        world.tiles.water = love.graphics.newImage("img/tiles/water.png")
+        world.tiles.nothing = love.graphics.newImage("img/tiles/nothing.png")
     end
 
     -- render the world
@@ -33,18 +35,22 @@ local world = {}
                 local loc = util.cartToIso({x = x, y = y})
     
                 if tile == "grass" then 
-                    image = world.grass
+                    image = world.tiles.grass
                 elseif tile == "dirt" then
-                    image = world.dirt
+                    image = world.tiles.dirt
                 elseif tile == "water" then
-                    image = world.water
+                    image = world.tiles.water
                 else 
-                    image = world.nothing
+                    image = world.tiles.nothing
                 end
     
                 love.graphics.draw(image, loc.x * 16 + offset.x, loc.y * 16 + offset.y)
             end
-        end 
+        end
+
+        if not world.hover == nil then
+            love.graphics.draw(world.select, world.hover.x, world.hover.y)
+        end
     end
 
 return world