integrated rope mechanic and drew every part of the crane

game.lua

@@ -19,12 +19,25 @@ local player = {
   maxSpeed = {
     x = 100,
     y = 100
+  },
+  magSpeed = 2
+}
+
+local movingStuff
+local movingStuffHeight
+local movingSutffWidth
+local magnet = {
+  collider = nil,
+  size = {
+    width = nil,
+    height = nil
   }
 }
 
-local magnet = {
+local stuffToMagnetJoint
-  collider = nil,
+local joint = {
-  side = 'LEFT'
+  min = 50,
+  max = 250
 }
 
 local velocity = {0, 0}
@@ -56,19 +69,25 @@ function Chu.new(x, y, debug)
   obj.pier = utils.spawnStaticRectangleBySize(world, x - PLAN_SIZE.marginX, y + PLAN_SIZE.h - pierHeight, pierWidth + PLAN_SIZE.marginX, pierHeight)
 
   local craneWidth, craneHeight = assets.sprites.crane:getWidth(), assets.sprites.crane:getHeight()
+  movingStuffWidth, movingStuffHeight = assets.sprites.movingstuff:getWidth(), assets.sprites.movingstuff:getHeight()
 
   obj.crane = {
-    top = utils.spawnStaticRectangleBySize(world, x + 36, y + 80, craneWidth, 6),
+    top = utils.spawnStaticRectangleBySize(world, x + 36, y + 80 + movingStuffHeight - 13, craneWidth, 6),
-    left = utils.spawnStaticRectangleBySize(world, x + 36, y + 86, 6, craneHeight - 12),
+    left = utils.spawnStaticRectangleBySize(world, x + 36, y + 80 + movingStuffHeight - 12 + 6, 6, craneHeight - 32),
-    right = utils.spawnStaticRectangleBySize(world, x + 30 + craneWidth, y + 86, 6, craneHeight - 12),
+    right = utils.spawnStaticRectangleBySize(world, x + 30 + craneWidth, y + 80 + movingStuffHeight - 12 + 6, 6, craneHeight - 32),
     bottom = utils.spawnStaticRectangleBySize(world, x + 36, y + 74 + craneHeight, craneWidth, 6)
   }
 
-  local magnetWidth, magnetHeight = assets.sprites.movingstuff:getWidth(), assets.sprites.movingstuff:getHeight()
+  local center = utils.getCenterByXY(x + 36 + (craneWidth/2) - (movingStuffWidth/2), y + craneHeight + 80 - movingStuffHeight - 6, movingStuffWidth, movingStuffHeight)
-  local center = utils.getCenterByXY(x + 43, y + 87, magnetWidth, magnetHeight)
+  movingStuff = world:addRectangle(center.x, center.y, movingStuffWidth, movingStuffHeight):setClass('Player')
-  magnet.collider = world:addRectangle(center.x, center.y, magnetWidth, magnetHeight):setClass('Player')
+
+  magnet.size.width, magnet.size.height = assets.sprites.magnet:getWidth(), assets.sprites.magnet:getHeight()
+  local centerMag = utils.getCenterByXY(x + 36 + (craneWidth/2) - (magnet.size.width/2), y + craneHeight + 80 + 50, magnet.size.width, magnet.size.height)
+  magnet.collider = world:addRectangle(centerMag.x, centerMag.y, magnet.size.width, magnet.size.height):setClass('Player')
   --magnet.collider:setRestitution(0)
 
+  stuffToMagnetJoint = world:addJoint('distance', movingStuff, magnet.collider, center.x, center.y, centerMag.x, centerMag.y)
+
   input = Boipus()
   -- Controls
   -- Keyboard and mouse
@@ -99,10 +118,17 @@ function Chu:update(dt)
     for key in pairs(attached) do
       crates:detach(key)
     end
-  elseif input:down('moveUp') or input:down('moveLeft') or input:down('moveRight') or input:down('moveDown') then
+  elseif input:down('moveUp') or input:down('moveDown') or input:down('moveLeft') or input:down('moveRight') then
-    if input:down('moveUp') then velocity[2] = -player.maxSpeed.y
+    local length = stuffToMagnetJoint:getLength()
-    elseif input:down('moveDown') then velocity[2] = player.maxSpeed.y
+    if input:down('moveUp') then
-    else velocity[2] = 0 end
+      length = length - player.magSpeed
+      if length < joint.min then length = joint.min end
+      stuffToMagnetJoint:setLength(length)
+    elseif input:down('moveDown') then
+      length = length + player.magSpeed
+      if length > joint.max then length = joint.max end
+      stuffToMagnetJoint:setLength(length)
+    end
     if input:down('moveLeft') then velocity[1] = -player.maxSpeed.x
     elseif input:down('moveRight') then velocity[1] = player.maxSpeed.x
     else velocity[1] = 0 end
@@ -110,7 +136,7 @@ function Chu:update(dt)
     velocity = {0, 0}
   end
 
-  magnet.collider:setLinearVelocity(velocity[1], velocity[2])
+  movingStuff:setLinearVelocity(velocity[1], velocity[2])
 end
 
 function Chu:draw()
@@ -121,16 +147,34 @@ function Chu:draw()
 
   love.graphics.draw(assets.sprites.cranevert, self.x + 60, self.y + PLAN_SIZE.h - 456)
   love.graphics.draw(assets.sprites.cranevert, self.x + PLAN_SIZE.w - 112, self.y + PLAN_SIZE.h - 456)
+
+  local stuffPosX, stuffPosY = movingStuff:getPosition()
+  local otherPosX, otherPosY = magnet.collider:getPosition()
+
+  love.graphics.setColor(0, 0, 0, 1)
+  love.graphics.line(stuffPosX, stuffPosY, otherPosX, otherPosY)
+  love.graphics.setColor(255, 255, 255, 1)
+
+  local stuffPos = utils.getXYByCenter(stuffPosX, stuffPosY, movingStuffWidth, movingStuffHeight)
+  love.graphics.draw(assets.sprites.movingstuff, stuffPos.x, stuffPos.y)
+
   love.graphics.draw(assets.sprites.crane, self.x + 36, self.y + 80)
 
+  love.graphics.draw(assets.sprites.wheel, stuffPos.x + 9, stuffPos.y + movingStuffHeight - 9)
+  love.graphics.draw(assets.sprites.wheel, stuffPos.x + movingStuffWidth - 23, stuffPos.y + movingStuffHeight - 9)
 
   love.graphics.draw(assets.sprites.level.pier, self.x, self.y + PLAN_SIZE.h - 128)
 
-  world:draw()
+  otherPosX, otherPosY = magnet.collider:getPosition()
+  love.graphics.draw(assets.sprites.magnet, otherPosX, otherPosY, magnet.collider:getAngle(), 1, 1, magnet.size.width/2, magnet.size.height/2)
+
+  --world:draw()
 
   if self.debug then
     love.graphics.setColor(255, 0, 0, .5)
     love.graphics.rectangle('line', self.x, self.y, PLAN_SIZE.w, PLAN_SIZE.h)
+
+    love.graphics.print(stuffToMagnetJoint:getLength(), 10, 10)
   end
 end