From 7116fcf1edc8a4cbeca6dfeea698a013f34db251 Mon Sep 17 00:00:00 2001
From: Matthew Ryan Dillon <matthew@akdillon.net>
Date: Mon, 21 Apr 2025 16:49:12 -0400
Subject: [PATCH] rebooting with playdate sdk

---
 .luarc.json |  15 +++++---
 main.lua    | 105 ++++++++++++++++++++++++++--------------------------
 2 files changed, 62 insertions(+), 58 deletions(-)

diff --git a/.luarc.json b/.luarc.json
index 0e02584..ad2360a 100644
--- a/.luarc.json
+++ b/.luarc.json
@@ -1,8 +1,11 @@
 {
-  "runtime.special": {
-    "love.filesystem.load": "loadfile"
-  },
-  "workspace.library": [
-    "${3rd}/love2d/library"
-  ]
+  "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
+  "diagnostics.globals": ["import"],
+  "diagnostics.severity": { "duplicate-set-field": "Hint" },
+  "format.defaultConfig": { "indent_style": "space", "indent_size": "4" },
+  "runtime.builtin": { "io": "disable", "os": "disable", "package": "disable" },
+  "runtime.nonstandardSymbol": ["+=", "-=", "*=", "/=", "//=", "%=", "<<=", ">>=", "&=", "|=", "^="],
+  "runtime.version": "Lua 5.4",
+  "workspace.preloadFileSize": 1000,
+  "workspace.library": ["/Users/matthew/Developer/playdate-luacats"]
 }
\ No newline at end of file
diff --git a/main.lua b/main.lua
index 9c0b755..a1ce104 100644
--- a/main.lua
+++ b/main.lua
@@ -1,66 +1,67 @@
-local lg = love.graphics
+import "CoreLibs/graphics"
+import "CoreLibs/ui"
+
+local function clamp(value, min, max)
+    return math.max(math.min(value, max), min)
+end
 
 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 }
+    local crankPosition = playdate.getCrankPosition()
+    local player = { position={ x=x, y=y, theta=crankPosition}, 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.draw = function(self)
+        local w, h, transform = self.width / 2, self.height / 2, playdate.geometry.affineTransform.new()
+        local polygon = playdate.geometry.polygon.new(-w,-0.5*h,  -w,0.5*h,  w,0, -w,-0.5*h)
+        transform:translate(self.position.x, self.position.y)
+        transform:rotate(self.position.theta, self.position.x, self.position.y)
+        local transformedPolygon = transform:transformedPolygon(polygon)
+        playdate.graphics.drawPolygon(transformedPolygon)
+    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.translate = function(self, y_amount)
+        local w, h, theta_rad = self.width / 2, self.height / 2, math.rad(self.position.theta)
+        local new_x = self.position.x + (y_amount * math.cos(theta_rad))
+        local new_y = self.position.y + (y_amount * math.sin(theta_rad))
+        self.position.x = clamp(new_x, w, self.screen.width - w)
+        self.position.y = clamp(new_y, h, self.screen.height - h)
+    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
+    player.rotate = function(self, degrees)
+        local new_theta = self.position.theta + degrees
+        if new_theta < 0 then new_theta = new_theta + 360 end
+        if new_theta > 360 then new_theta = new_theta - 360 end
+        self.position.theta = new_theta
+    end
 
-  return player
+    player.handle_crank = function(self)
+        local change, _acceleratedChange = playdate.getCrankChange()
+        self:rotate(change)
+    end
+
+    player.size = function(self, amount)
+        self.width = clamp(self.width + amount, 2, 80)
+        self.height = clamp(self.height + amount, 2, 80)
+        local w, h = self.width / 2, self.height / 2
+        self.position.x = clamp(self.position.x, w, self.screen.width - w)
+        self.position.y = clamp(self.position.y, h, self.screen.height - h)
+    end
+
+    return player
 end
 
 local screen = { width=400, height=240 }
-local player = make_player(screen.width / 2, screen.height / 2, 10, 10, screen)
+local player = make_player(screen.width / 2, screen.height / 2, 20, 30, screen)
 
-function love.load()
-  love.window.setMode(screen.width, screen.height)
-end
+function playdate.update()
+    playdate.graphics.clear()
+    if playdate.isCrankDocked() then playdate.ui.crankIndicator:draw() 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
+    if playdate.buttonIsPressed(playdate.kButtonUp) then player:translate(10) end
+    if playdate.buttonIsPressed(playdate.kButtonDown) then player:translate(-10) end
 
-function love.draw()
-  lg.setColor(1, 1, 1)
-  lg.rectangle("fill", 0, 0, screen.width, screen.height)
+    if playdate.buttonIsPressed(playdate.kButtonLeft) then player:size(2) end
+    if playdate.buttonIsPressed(playdate.kButtonRight) then player:size(-2) end
 
-  player:draw()
+    player:handle_crank()
+    player:draw()
 end
\ No newline at end of file