#{
	true <- #{
	  if:else <- :self trueblock :elseblock {
		trueblock:
	  }
	}

	false <- #{
	  if:else <- :self trueblock :elseblock {
		elseblock:
	  }
	}

	cellType <- #{
		robot       <- ("R"  byte: 0)
		wall        <- ("#"  byte: 0)
		rock        <- ("*"  byte: 0)
		lambda      <- ("\\" byte: 0)
		closedlift  <- ("L"  byte: 0)
		openlift    <- ("O"  byte: 0)
		earth       <- ("."  byte: 0)
		empty       <- (" "  byte: 0)
		newline     <- ("\n" byte: 0)
    }

	state <- #{
		new <- :in_grid in_width in_height { 
			next_grid <- #[]
			foreach: in_grid :index el{
				dst_grid append: el
			}
			#{
				grid <- []
				width <- in_width
				height <- in_height
				address <- :x y { x + y * width }
				setCell <- :x y cell {
					grid set: (address: x y) cell
				}
				getCell <- :x y {
					grid get: (address: x y)
				}
				collected <- 0
				moves <- 0
				ended <- false
				doMove <- :roboMove {
					ended <- roboMove = "A"
				}
				advance <- :roboMove {
					doMove: roboMove
					moves <- moves + 1
					self
				}
				
			}
		}
		fromStr <- :str {
			strLen <- str byte_length:
			index <- 0
			maxRow <- 0
			curRow <- 0
			while: {index < strLen} do {
				curByte <- str byte: index
				if: curByte = (cellType newline) {
					maxRow <- if: curRow > maxRow {curRow} else: {maxRow}
				} else: {
					curRow = curRow + 1
				}
			}
			grid <- #[ ("#" byte: 0) ("#" byte: 0) ("#" byte: 0)  (			                 "#" byte: 0) (" " byte: 0) ("#" byte: 0)  (			                 "#" byte: 0) ("#" byte: 0) ("#" byte: 0)] 
			fresh <- new: grid 3 3
		}
		deepCopy <- :oldState {
			newState <- new: 
			#{
				// grid <- (use array copy thing)
				width <- oldState width
				height <- oldState height
				address <- oldState address
				// ... better way?
			}
		}
	}

	testMoves <- {
		myStep <- 0
		{
			print: (string: myStep)
			myStep <- myStep + 1
			if: myStep > 5 {"A"} else: {"W"}
		}
	}
	
	main <- {
		
	}

/*
	main <- {
		testInput <- "derp" 
		simState <- state fromStr: testInput
		roboMove <- "W"
		getMove <- testMoves:
		while: {playing: simState roboMove} do: {
			print: "step..."
			roboMove <- getMove:
			simState advance:
		}
	}
*/
}