commit 4e86a22776bd4c699615601afdc6ab1634c7e2f7
Author: Isabelle L <me@izzabelle.dev>
Date:   Wed Jul 1 19:16:55 2020 -0500

    initial commit!

diff --git a/README.md b/README.md
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diff --git a/conf.lua b/conf.lua
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+++ b/conf.lua
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+function love.conf(t)
+    t.window.width = 640
+    t.window.height = 480
+    t.window.title = "unnamed"
+end
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diff --git a/img/tiles/dirt.png b/img/tiles/dirt.png
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diff --git a/img/tiles/grass.png b/img/tiles/grass.png
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diff --git a/img/tiles/nothing.png b/img/tiles/nothing.png
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diff --git a/img/tiles/select.png b/img/tiles/select.png
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diff --git a/img/tiles/water.png b/img/tiles/water.png
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diff --git a/main.lua b/main.lua
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+++ b/main.lua
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+-- world module
+local world = require("world")
+
+-- love's load function
+function love.load()
+    -- set the overall map offset
+    offset = {
+        x = 0,
+        y = 0
+    }
+    
+    -- generate the world and load the files
+    world.new(10, 10)
+    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
+    end
+
+    if key == "right" then
+        offset.x = offset.x + 16
+    end
+
+    if key == "up" then
+        offset.y = offset.y - 16
+    end
+    
+    if key == "down" then
+        offset.y = offset.y + 16
+    end
+end
+
+-- love's draw function
+function love.draw()
+    -- clear the window
+    love.graphics.clear()
+    
+    -- draw the map
+    world.render(offset)
+end
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diff --git a/util.lua b/util.lua
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+++ b/util.lua
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+local util = {}
+
+function util.cartToIso(cart)
+    local iso = {}
+    iso.x = cart.x - cart.y
+    iso.y = (cart.x + cart.y) / 2
+    return iso
+end
+
+function util.isoToCart(iso)
+    local cart = {}
+    cart.x = (2 * iso.y + iso.x) / 2
+    cart.y = (2 * iso.y - iso.x) / 2
+    return cart
+end
+
+return util
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diff --git a/world.lua b/world.lua
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+++ b/world.lua
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+-- bring in the util module
+local util = require("util")
+
+-- world stuffs
+local world = {}
+    -- create a new world with given height and width
+    function world.new(width, height)
+        world.width = width
+        world.height = height
+
+        for x = 1, world.width do
+            world[x] = {}
+            for y = 1, world.height do
+                world[x][y] = "nothing"
+            end
+        end
+    end
+
+    -- 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")
+    end
+
+    -- render the world
+    function world.render(offset)
+        for x = 1, world.width do
+            for y = 1, world.height do
+                local tile = world[x][y]
+                local loc = util.cartToIso({x = x, y = y})
+    
+                if tile == "grass" then 
+                    image = world.grass
+                elseif tile == "dirt" then
+                    image = world.dirt
+                elseif tile == "water" then
+                    image = world.water
+                else 
+                    image = world.nothing
+                end
+    
+                love.graphics.draw(image, loc.x * 16 + offset.x, loc.y * 16 + offset.y)
+            end
+        end 
+    end
+
+return world
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