add demo7

demo7/main.lua

@@ -0,0 +1,35 @@
+package.path = package.path .. ";../?.lua"
+local deep = require "../deep"
+
+local current_z = 1
+
+-- Draws a rectangle at passed y coordinate
+local draw_rectangle = function(y)
+  love.graphics.rectangle("fill", 200, y, 300, 10)
+end
+
+function love.draw()
+  deep.queue(2, draw_rectangle, 60)
+  deep.queue(3, draw_rectangle, 80)
+  deep.queue(4, draw_rectangle, 100)
+
+
+  -- Red square, which can move through z axis
+  deep.queue(current_z, function()
+    love.graphics.setColor(255, 0, 0) -- Set color to red
+    love.graphics.rectangle("fill", 300, 40, 80, 80)
+    love.graphics.setColor(255, 255, 255) -- Reset color
+  end)
+
+  -- Draw everything in the queue
+  deep.execute()
+end
+
+-- Increases/decreases player z on key press
+function love.keypressed(key)
+  if key == "up" then
+    current_z = current_z + 1
+  elseif key == "down" then
+    current_z = current_z - 1
+  end
+end