Add lives

* Create life.vim to keep track of lives
* Players start with 3 lives
* Add increment and decrement functions for lives because they'll be
  useful in the future (although there's a more immediate need for the
  decrement function)
* Render lives at the bottom of the board
* Move the score line down so that it appears just below the life count
  display

1 files changed, 28 insertions, 0 deletions

diff --git a/autoload/space_vlaze/life.vim b/autoload/space_vlaze/life.vim
new file mode 100644
index 0000000..1d300bd
--- /dev/null
+++ b/autoload/space_vlaze/life.vim
@@ -0,0 +1,28 @@
+function! space_vlaze#life#Initialize()
+	let s:lives = 3
+endfunction
+
+
+function! space_vlaze#life#IncrementLives()
+	let s:lives += 1
+endfunction
+
+
+function! space_vlaze#life#DecrementLives()
+	let s:lives -= 1
+endfunction
+
+
+function! space_vlaze#life#RenderLives()
+	let lives_line = space_vlaze#game#BoardHeight() + 1
+	let lives_display = ''
+	
+	let i = 0
+	while i < s:lives
+		let lives_display .= space_vlaze#player#PlayerCharacter() . ' '
+		
+		let i += 1
+	endwhile
+	
+	call setline(lives_line, lives_display)
+endfunction