Init commit.

Very basic swing and hit physics.
Pitches every 5 seconds. Not much else!

main.lua

@@ -0,0 +1,100 @@
+import 'CoreLibs/graphics.lua'
+import 'CoreLibs/animator.lua'
+import 'CoreLibs/easing.lua'
+
+local gfx = playdate.graphics
+playdate.display.setRefreshRate(50)
+
+gfx.setBackgroundColor(gfx.kColorWhite)
+
+lastPosition = playdate.getCrankPosition()
+
+-- text = "Oop"
+
+timeSinceLastSwing = 999999
+
+local ball = gfx.image.new(10, 10, gfx.kColorBlack)
+local animationDuration = 2000
+local ballStartY, endY = -20, 250
+local easingFunction = playdate.easingFunctions.outQuint
+local ballAnimator = gfx.animator.new(animationDuration, ballStartY, endY, easingFunction)
+
+local screenW, screenH = 400, 240
+local centerX, centerY = screenW / 2, screenH / 2
+local batBaseX, batBaseY = centerX - 34, 200
+
+local circleR = 45
+
+local ballY = ballStartY
+local lastBallY = ballY
+local ballX = 200
+local ballVelX, ballVelY = 0, 0
+
+local batTipX = 0
+local batTipY = 0
+
+local hit = false
+
+function pitch()
+    ballAnimator:reset()
+    ballVelX = 0
+    ballVelY = 0
+    ballX = 200
+    hit = false
+end
+
+function playdate.AButtonDown()
+    pitch()
+end
+
+local pitchClockSec = 5
+local elapsedTime = 0
+
+function playdate.update()
+    local deltaTime = playdate.getElapsedTime()
+    playdate.resetElapsedTime()
+    elapsedTime = elapsedTime + deltaTime
+
+    if elapsedTime > pitchClockSec then
+        elapsedTime = 0
+        pitch()
+    end
+
+    gfx.clear()
+    crankChange, acceleratedChange = playdate.getCrankChange()
+
+    if hit then
+        ballX = ballX + ballVelX
+        ballY = ballY + ballVelY
+    else
+        ballY = ballAnimator:currentValue()
+    end
+
+    batAngle = math.rad(playdate.getCrankPosition() + 180)
+    batTipX = batBaseX + (circleR * math.sin(batAngle))
+    batTipY = batBaseY + (circleR * math.cos(batAngle))
+
+    if hit == false and
+     --(lastBallY - 2) < batTipY and ballY >= batTipY and batTipX > ballX then
+    math.abs(ballY - batTipY) < 10 and batTipX > ballX then -- math.abs(batTipX - ballX) < 10 then
+        ballAngle = batAngle + math.rad(90)
+        mult = math.abs(acceleratedChange / 15)
+        ballVelX = mult * -15 * math.sin(ballAngle)
+        ballVelY = mult * 5 * math.cos(ballAngle)
+        if ballVelY > 0 then
+            ballVelX = ballVelX * -1
+            ballVelY = ballVelY * -1
+        end
+        hit = true
+    end
+    lastBallY = ballY
+
+    gfx.setColor(gfx.kColorBlack)
+    -- ball:draw(ballX, ballY)
+    gfx.setLineWidth(2)
+    gfx.drawCircleAtPoint(ballX, ballY, 8)
+
+    gfx.setLineWidth(5)
+    gfx.drawLine(batBaseX, batBaseY, batTipX, batTipY)
+end
+