stopping with love2d at this point, makes sense to just jump into playdate

.luarc.json

@@ -0,0 +1,8 @@
+{
+  "runtime.special": {
+    "love.filesystem.load": "loadfile"
+  },
+  "workspace.library": [
+    "${3rd}/love2d/library"
+  ]
+}

main.lua

@@ -0,0 +1,66 @@
+local lg = love.graphics
+
+local function make_player(x, y, width, height, screen)
+  local player = { position={ x=x, y=y, theta=-math.pi / 2 }, width=width, height=height, screen=screen }
+
+  player.draw = function(self)
+    local w, h = self.width / 2, self.height / 2
+    lg.push()
+    lg.setColor(0, 0, 0)
+    lg.translate(self.position.x, self.position.y)
+    lg.rotate(self.position.theta)
+    lg.polygon("fill",  -w,-h,  -w,h,  w,0)
+    lg.pop()
+  end
+
+  player.translate = function(self, amount)
+    local w, h = self.width / 2, self.height / 2
+    local new_x = self.position.x + (amount * math.cos(self.position.theta))
+    local new_y = self.position.y + (amount * math.sin(self.position.theta))
+    if new_x + w > self.screen.width then new_x = self.screen.width - w end
+    if new_x - w < 0 then new_x = w end
+    if new_y + h > self.screen.height then new_y = self.screen.height - h end
+    if new_y - h < 0 then new_y = h end
+    self.position.x = new_x
+    self.position.y = new_y
+  end
+
+  player.rotate = function(self, degrees)
+    local radians = math.rad(degrees)
+    local new_theta = self.position.theta + radians
+    if new_theta < 0 then new_theta = new_theta + (2 * math.pi) end
+    if new_theta > 2 * math.pi then new_theta = new_theta - (2 * math.pi) end
+    self.position.theta = new_theta
+  end
+
+  return player
+end
+
+local screen = { width=400, height=240 }
+local player = make_player(screen.width / 2, screen.height / 2, 10, 10, screen)
+
+function love.load()
+  love.window.setMode(screen.width, screen.height)
+end
+
+function love.update(dt)
+  if love.keyboard.isDown("w") then
+    player:translate(1)
+  end
+  if love.keyboard.isDown("s") then
+    player:translate(-1)
+  end
+  if love.keyboard.isDown("d") then
+    player:rotate(5)
+  end
+  if love.keyboard.isDown("a") then
+    player:rotate(-5)
+  end
+end
+
+function love.draw()
+  lg.setColor(1, 1, 1)
+  lg.rectangle("fill", 0, 0, screen.width, screen.height)
+
+  player:draw()
+end