restructured the code

Cakefile

@@ -0,0 +1,5 @@
+{exec} = require 'child_process'
+task 'sbuild', 'Build project from ./src/*.coffee to ./build/*.js', ->
+  exec 'coffee --output ./build/ --join game.js --compile ./src/', (err, stdout, stderr) ->
+    throw err if err
+    console.log stdout + stderr

docs/README

@@ -0,0 +1 @@
+README

docs/TODO

@@ -1,28 +1,9 @@
-
-+ levelweschel start
-+ 
-
-
-
-
-
-
-
-
-
-
-
-
-
-+ loose screen
-
-
-
-+ böses licht
-
 + items
 	- knicklicht
 	- feuerzeug
 	- fackel
 
-+ schatten addieren
++ schatten addieren
+
+
++ include reihenfolge

maps/Map_Kurs_01

@@ -1 +0,0 @@
-[3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,0,6,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,1,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,3,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,3,3,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,0,0,0,3,3,3,3,0,0,0,3,3,3,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,0,0,0,3,3,3,0,0,3,3,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,3,3,0,0,0,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,0,0,6,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,3,3,0,0,0,0,0,0,3,3,3,0,0,0,3,3,3,0,0,0,0,0,6,0,0,0,3,3,0,0,0,0,0,0,0,3,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,0,0,3,3,3,3,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,6,0,6,0,3,3,3,3,3,0,0,0,0,3,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,0,0,0,3,3,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,0,6,6,6,0,0,3,3,3,3,3,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,3,0,3,3,0,3,3,0,3,3,0,3,3,0,0,0,0,6,0,0,0,3,0,0,0,3,3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,5,5,5,3,3,3,0,0,0,0,0,0,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,3,3,3,3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,3,3,3,3,3,3,3,0,0,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,0,0,0,3,3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,3,3,3,3,3,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,3,3,3,3,3,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,3,3,3,3,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,0,3,3,0,3,0,3,3,3,3,0,3,3,0,3,3,0,0,0,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,3,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,3,0,3,0,0,0,0,3,0,3,0,0,0,3,0,0,0,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,3,3,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,3,0,3,0,0,0,0,0,0,3,0,0,0,3,0,0,0,3,3,0,0,3,0,0,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,3,3,3,0,3,0,0,0,0,3,0,3,3,3,3,3,0,0,0,3,3,0,0,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,3,0,0,0,0,0,0,3,0,3,0,0,0,3,0,0,0,2,0,0,0,3,0,0,3,0,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,3,0,3,0,0,0,0,3,0,3,0,0,0,3,0,0,0,3,3,0,0,3,0,0,3,0,3,3,3,3,3,3,3,3,3,3,1,3,0,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,0,3,3,0,3,3,3,3,3,3,0,3,3,0,3,3,0,0,0,3,3,0,0,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,3,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,0,0,3,3,3,3,0,0,0,3,3,3,0,0,0,3,3,3,3,3,3,0,0,3,3,3,3,3,0,0,0,0,0,0,0,0,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,3,0,0,3,0,0,0,3,0,0,3,3,0,0,0,0,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,3,3,0,0,0,0,0,0,0,3,0,0,0,3,3,3,3,3,3,0,0,3,0,0,0,3,0,0,3,0,0,3,0,0,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,3,0,0,0,1,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,3,0,0,3,3,3,3,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,6,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3]

src/Cakefile

@@ -1,5 +0,0 @@
-{exec} = require 'child_process'
-task 'sbuild', 'Build project from ./*.coffee to ../build/*.js', ->
-  exec 'coffee --output ../build/ --join game.js --compile ./', (err, stdout, stderr) ->
-    throw err if err
-    console.log stdout + stderr

src/base.coffee

@@ -1,70 +0,0 @@
-canvas = document.getElementById 'canvas'
-context = canvas.getContext '2d'
-context.textAlign = 'center';
-
-# the config
-config =
-  gamewin: false
-  gameover: false
-  pixelsize: 15
-  debug: false
-  lights: true
-  map:
-    width: 60
-    height: 40
-    origin:
-      x: 0
-      y: 50
-
-player =
-  position: 0
-  lightrange: 10
-
-blocks =
-  walkable: [1, 0, 4, 6, 7, 8]
-  entities: [1, 2, 7, 5, 6, 8]
-
-colors =
-  floor: '#eeeeee'
-  wall: '#333333'
-  player: '#850091'
-  key: '#ffe91a'
-  door: '#0883fd'
-  exit: '#07fd0f'
-  breakable: '#bf7d0b'
-
-levels = []
-current_level = 0
-level = null
-
-# preparing the canvas
-update_canvas = () ->
-  canvas.width = config.map.width*config.pixelsize+config.map.origin.x
-  canvas.height = config.map.height*config.pixelsize+config.map.origin.y
-update_canvas()
-
-toxy = (position)->
-  x: position%config.map.width
-  y: Math.floor(position/config.map.width)
-
-# function: rect drawing
-rect = (x, y, w, h, color) ->
-  context.fillStyle = color
-  context.fillRect x, y, w, h
-
-pixel = (position, w, h, color) ->
-  x = config.pixelsize*toxy(position).x+config.map.origin.x
-  y = config.pixelsize*toxy(position).y+config.map.origin.y
-  rect(x, y, w, h, color)
-
-write = (x, y, text, size, color) ->
-  context.textAlign = 'center';
-  context.fillStyle = color
-  context.font = 'normal '+size+'pt Verdana'
-  context.fillText(text, x, y)
-
-add_level = (map) ->
-  levels.push map
-
-# tmp: level
-shadow_layer = enemy_layer = level = null

src/config.coffee

@@ -0,0 +1,47 @@
+canvas = document.getElementById 'canvas'
+context = canvas.getContext '2d'
+context.textAlign = 'center';
+
+# the config
+config =
+  gamewin: false
+  gameover: false
+  pixelsize: 15
+  debug: false
+  lights: true
+  map:
+    width: 60
+    height: 40
+    origin:
+      x: 0
+      y: 50
+
+player =
+  position: 0
+  lightrange: 10
+
+blocks =
+  walkable: [1, 0, 4, 6, 7, 8]
+  entities: [1, 2, 7, 5, 6, 8]
+
+colors =
+  floor: '#eeeeee'
+  wall: '#333333'
+  player: '#850091'
+  key: '#ffe91a'
+  door: '#0883fd'
+  exit: '#07fd0f'
+  breakable: '#bf7d0b'
+
+inventar =
+  key: false
+  #candles: 0
+  #sticks: 0
+  #lighter: false
+
+levels = []
+current_level = 0
+level = null
+
+# tmp: level
+shadow_layer = enemy_layer = null

src/hud.coffee

@@ -1,9 +1,3 @@
-inventar =
-	key: false
-	#candles: 0
-	#sticks: 0
-	#lighter: false
-
 draw_hud = ->
 	rect(0, 0, config.pixelsize*config.map.width, config.map.origin.y, '#222222')
 	rect(0, config.map.origin.y-2, config.pixelsize*config.map.width, 2, '#333333')

src/input.coffee

@@ -0,0 +1,23 @@
+# get input
+keymap = []
+
+addEventListener 'keydown', (event) ->
+  keymap[event.keyCode] = true
+
+  #console.log event.keyCode
+  #if event.keyCode == 187 then player.lightrange++
+  if event.keyCode == 187 
+    config.pixelsize += 2
+    update_canvas()
+    #current_level++
+    #load_level(current_level)
+  #if event.keyCode == 189 then player.lightrange--
+  if event.keyCode == 189
+    config.pixelsize -= 2
+    update_canvas()
+  if event.keyCode == 68 then config.debug = !config.debug
+  if event.keyCode == 32 then break_walls(player.position)
+  if event.keyCode == 76 then config.lights = !config.lights
+
+addEventListener 'keyup', (event) ->
+  keymap[event.keyCode] = false

src/level.coffee

@@ -0,0 +1,38 @@
+add_level = (map) ->
+  levels.push map
+
+draw_level = (level) ->
+  for block, position in level
+    switch block
+      when 0 then color = colors.floor
+      when 3 then color = colors.wall
+      when 1 then color = colors.key
+      when 2 then color = colors.door
+      when 7 then color = colors.exit
+      when 5 then color = colors.breakable
+      
+    pixel(position, config.pixelsize, config.pixelsize, color)
+
+reset_layers = () ->
+  shadow_layer = [0..(config.map.width*config.map.height)].map -> 0
+  enemy_layer = [0..(config.map.width*config.map.height)].map -> 0
+
+init_level = () ->
+  level = [0..(config.map.width*config.map.height)].map -> 0
+
+  inventar.key = false
+
+load_level = (number) ->
+  if number is levels.length
+    config.gamewin = true
+  else
+    init_level()
+    level = levels[number]
+    parse_levelentities(level)
+
+parse_levelentities = ->
+  for block, position in level
+    switch block
+      when 4
+        player.position = position
+        level[position] = 0

src/lib/2d.coffee

@@ -0,0 +1,19 @@
+toxy = (position)->
+  x: position%config.map.width
+  y: Math.floor(position/config.map.width)
+
+# function: rect drawing
+rect = (x, y, w, h, color) ->
+  context.fillStyle = color
+  context.fillRect x, y, w, h
+
+pixel = (position, w, h, color) ->
+  x = config.pixelsize*toxy(position).x+config.map.origin.x
+  y = config.pixelsize*toxy(position).y+config.map.origin.y
+  rect(x, y, w, h, color)
+
+write = (x, y, text, size, color) ->
+  context.textAlign = 'center';
+  context.fillStyle = color
+  context.font = 'normal '+size+'pt Verdana'
+  context.fillText(text, x, y)

src/lib/helpers.coffee

@@ -0,0 +1,8 @@
+# preparing the canvas
+update_canvas = () ->
+  canvas.width = config.map.width*config.pixelsize+config.map.origin.x
+  canvas.height = config.map.height*config.pixelsize+config.map.origin.y
+update_canvas()
+
+map_range = (from, to, s) ->
+  to[0] + (s-from[0]) * (to[1] - to[0]) / (from[1] - from[0])

src/light.coffee

@@ -0,0 +1,111 @@
+calculate_lightray = (x1, y1, x2, y2, type) ->
+  switch type
+    when 'enemy' then selected_layer = enemy_layer
+    else selected_layer = shadow_layer
+
+  pixel_x1 = x1*config.pixelsize + (config.pixelsize/2)
+  pixel_y1 = y1*config.pixelsize + (config.pixelsize/2)
+  pixel_x2 = x2*config.pixelsize + (config.pixelsize/2)
+  pixel_y2 = y2*config.pixelsize + (config.pixelsize/2)
+
+  dx = Math.abs(pixel_x1 - pixel_x2)
+  dy = Math.abs(pixel_y1 - pixel_y2)
+  
+  s = 0.99 / (if dx>dy then dx else dy)
+  t = 0.0
+
+  # show me the rays
+  if config.debug
+    context.beginPath()
+    context.strokeStyle = 'blue'
+    context.moveTo(pixel_x1+config.map.origin.x,pixel_y1+config.map.origin.y)
+    context.lineTo(pixel_x2+config.map.origin.x,pixel_y2+config.map.origin.y)
+    context.stroke()
+
+  hit_wall = false
+  while t < 1.0
+    dx = Math.round((1.0-t)*pixel_x1 + t*pixel_x2)
+    dy = Math.round((1.0-t)*pixel_y1 + t*pixel_y2)
+
+    dx = Math.floor(dx/config.pixelsize)
+    dy = Math.floor(dy/config.pixelsize)
+
+    # FLOOR?
+    if level[dy*config.map.width + dx] is 0
+      break if hit_wall and !config.debug
+      
+      if selected_layer[dy*config.map.width + dx] == 0
+        if t > 0.5
+          selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
+        else
+          selected_layer[dy*config.map.width + dx] += 1
+    # WALL?
+    else if level[dy*config.map.width + dx] is 3
+      break if type is 'enemy'
+      if t > 0.5
+        selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
+      else
+        selected_layer[dy*config.map.width + dx] += 1
+        
+      hit_wall = true
+    # ENTITIY?
+    else if level[dy*config.map.width + dx] in blocks.entities
+      if t > 0.5
+        selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
+      else
+        selected_layer[dy*config.map.width + dx] += 1
+      break if !config.debug and level[dy*config.map.width + dx] isnt 1 and level[dy*config.map.width + dx] isnt 8
+    else
+      selected_layer[dy*config.map.width + dx] = .5
+      break if !config.debug
+        
+    t += s
+
+illuminate = (x1, y1, range, type = 'shadow') ->
+  r = 0
+
+  while r < Math.PI*2
+    x2 = range*Math.cos(r) + x1
+    y2 = range*Math.sin(r) + y1
+    
+    # bug: edge blurry stuff    
+    #x2 = config.map.width-1 if x2 > config.map.width-1
+    #y2 = config.map.height-1 if y2 > config.map.height-1
+    #
+    #x2 = 0 if x2 < 0
+    #y2 = 0 if y2 < 0
+    
+    calculate_lightray(x1, y1, x2, y2, type)
+    r += 0.03
+
+calculate_lights = () ->
+  #illuminate(8, 8, 5)
+  illuminate(toxy(player.position).x, toxy(player.position).y, player.lightrange)
+
+  for block, position in level
+    switch block
+      # 6 = LIGHT
+      # CAMERA
+      when 8
+        illuminate(toxy(position).x, toxy(position).y, 4, 'enemy')
+
+draw_lights = (type) ->
+  switch type
+    when 'enemy'
+      color = '255, 0, 0'
+      selected_layer = enemy_layer
+    else
+      color = '0, 0, 0'
+      selected_layer = shadow_layer
+  
+  for brightness, position in selected_layer
+    switch type
+      when 'enemy'
+        alpha = brightness*.5
+      else
+        alpha = 1-brightness
+
+    if level[position] in blocks.entities
+      if alpha < 0.4 then alpha = 0
+
+    pixel(position, config.pixelsize, config.pixelsize, 'rgba('+color+', '+alpha+')')

src/main.coffee

@@ -1,226 +1,3 @@
-draw_level = (level) ->
-  for block, position in level
-    switch block
-      when 0 then color = colors.floor
-      when 3 then color = colors.wall
-      when 1 then color = colors.key
-      when 2 then color = colors.door
-      when 7 then color = colors.exit
-      when 5 then color = colors.breakable
-      
-    pixel(position, config.pixelsize, config.pixelsize, color)
-
-reset_layers = () ->
-  shadow_layer = [0..(config.map.width*config.map.height)].map -> 0
-  enemy_layer = [0..(config.map.width*config.map.height)].map -> 0
-
-init_level = () ->
-  level = [0..(config.map.width*config.map.height)].map -> 0
-
-  inventar.key = false
-
-load_level = (number) ->
-  if number is levels.length
-    config.gamewin = true
-  else
-    init_level()
-    level = levels[number]
-    parse_levelentities(level)
-
-# function: update player position
-update_player_position = () ->
-  new_position = player.position
-  if keymap[37] and toxy(player.position).x > 0 # left
-    new_position = new_position-1
-  if keymap[39] and toxy(player.position).x < config.map.width-1 # right
-    new_position = new_position+1
-  if keymap[38] and toxy(player.position).y > 0 # up
-    new_position = new_position - config.map.width
-  if keymap[40] and toxy(player.position).y < config.map.height-1 # down
-    new_position = new_position + config.map.width
-  
-  switch level[new_position]
-    # EXIT
-    when 7
-      current_level++
-      load_level(current_level)
-      return
-    # DOOR
-    when 2
-      if inventar.key
-        inventar.key = false
-        level[new_position] = 0
-    # KEY
-    when 1
-      inventar.key = true
-      level[new_position] = 0
-
-  #console.log enemy_layer
-  if enemy_layer[new_position] > 0 and !config.debug
-    config.gameover = true
-
-  if level[new_position] in blocks.walkable then player.position = new_position
-    
-# function: draw player
-draw_player = (position) ->
-  pixel(position, config.pixelsize, config.pixelsize, colors.player)
-
-map_range = (from, to, s) ->
-  to[0] + (s-from[0]) * (to[1] - to[0]) / (from[1] - from[0])
-
-calculate_lightray = (x1, y1, x2, y2, type) ->
-  switch type
-    when 'enemy' then selected_layer = enemy_layer
-    else selected_layer = shadow_layer
-
-  pixel_x1 = x1*config.pixelsize + (config.pixelsize/2)
-  pixel_y1 = y1*config.pixelsize + (config.pixelsize/2)
-  pixel_x2 = x2*config.pixelsize + (config.pixelsize/2)
-  pixel_y2 = y2*config.pixelsize + (config.pixelsize/2)
-
-  dx = Math.abs(pixel_x1 - pixel_x2)
-  dy = Math.abs(pixel_y1 - pixel_y2)
-  
-  s = 0.99 / (if dx>dy then dx else dy)
-  t = 0.0
-
-  # show me the rays
-  if config.debug
-    context.beginPath()
-    context.strokeStyle = 'blue'
-    context.moveTo(pixel_x1+config.map.origin.x,pixel_y1+config.map.origin.y)
-    context.lineTo(pixel_x2+config.map.origin.x,pixel_y2+config.map.origin.y)
-    context.stroke()
-
-  hit_wall = false
-  while t < 1.0
-    dx = Math.round((1.0-t)*pixel_x1 + t*pixel_x2)
-    dy = Math.round((1.0-t)*pixel_y1 + t*pixel_y2)
-
-    dx = Math.floor(dx/config.pixelsize)
-    dy = Math.floor(dy/config.pixelsize)
-
-    # FLOOR?
-    if level[dy*config.map.width + dx] is 0
-      break if hit_wall and !config.debug
-      
-      if selected_layer[dy*config.map.width + dx] == 0
-        if t > 0.5
-          selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
-        else
-          selected_layer[dy*config.map.width + dx] += 1
-    # WALL?
-    else if level[dy*config.map.width + dx] is 3
-      break if type is 'enemy'
-      if t > 0.5
-        selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
-      else
-        selected_layer[dy*config.map.width + dx] += 1
-        
-      hit_wall = true
-    # ENTITIY?
-    else if level[dy*config.map.width + dx] in blocks.entities
-      if t > 0.5
-        selected_layer[dy*config.map.width + dx] += map_range([0.5, 1], [1, 0], t)
-      else
-        selected_layer[dy*config.map.width + dx] += 1
-      break if !config.debug and level[dy*config.map.width + dx] isnt 1 and level[dy*config.map.width + dx] isnt 8
-    else
-      selected_layer[dy*config.map.width + dx] = .5
-      break if !config.debug
-        
-    t += s
-
-illuminate = (x1, y1, range, type = 'shadow') ->
-  r = 0
-
-  while r < Math.PI*2
-    x2 = range*Math.cos(r) + x1
-    y2 = range*Math.sin(r) + y1
-    
-    # bug: edge blurry stuff    
-    #x2 = config.map.width-1 if x2 > config.map.width-1
-    #y2 = config.map.height-1 if y2 > config.map.height-1
-    #
-    #x2 = 0 if x2 < 0
-    #y2 = 0 if y2 < 0
-    
-    calculate_lightray(x1, y1, x2, y2, type)
-    r += 0.03
-
-calculate_lights = () ->
-  #illuminate(8, 8, 5)
-  illuminate(toxy(player.position).x, toxy(player.position).y, player.lightrange)
-
-  for block, position in level
-    switch block
-      # 6 = LIGHT
-      # CAMERA
-      when 8
-        illuminate(toxy(position).x, toxy(position).y, 4, 'enemy')
-
-draw_lights = (type) ->
-  switch type
-    when 'enemy'
-      color = '255, 0, 0'
-      selected_layer = enemy_layer
-    else
-      color = '0, 0, 0'
-      selected_layer = shadow_layer
-  
-  for brightness, position in selected_layer
-    switch type
-      when 'enemy'
-        alpha = brightness*.5
-      else
-        alpha = 1-brightness
-
-    if level[position] in blocks.entities
-      if alpha < 0.4 then alpha = 0
-
-    pixel(position, config.pixelsize, config.pixelsize, 'rgba('+color+', '+alpha+')')
-
-break_walls = (position) ->
-  level[position-1] = 0 if level[position-1] is 5 or config.debug
-  level[position+1] = 0 if level[position+1] is 5 or config.debug
-  level[position-config.map.width] = 0 if level[position-config.map.width] is 5 or config.debug
-  level[position+config.map.width] = 0 if level[position+config.map.width] is 5 or config.debug
-
-# get input
-keymap = []
-
-addEventListener 'keydown', (event) ->
-  keymap[event.keyCode] = true
-
-  #console.log event.keyCode
-  #if event.keyCode == 187 then player.lightrange++
-  if event.keyCode == 187 
-    config.pixelsize += 2
-    update_canvas()
-    #current_level++
-    #load_level(current_level)
-  #if event.keyCode == 189 then player.lightrange--
-  if event.keyCode == 189
-    config.pixelsize -= 2
-    update_canvas()
-  if event.keyCode == 68 then config.debug = !config.debug
-  if event.keyCode == 32 then break_walls(player.position)
-  if event.keyCode == 76 then config.lights = !config.lights
-
-addEventListener 'keyup', (event) ->
-  keymap[event.keyCode] = false
-
-parse_levelentities = ->
-  for block, position in level
-    switch block
-      when 4
-        player.position = position
-        level[position] = 0
-
-# startup config
-load_level(current_level)
-
-# the awesome main loop
 main_loop = ->
   if config.gamewin
     rect(0, 0, config.map.width*config.pixelsize, config.map.height*config.pixelsize+config.map.origin.y, '#ffffff')
@@ -244,4 +21,5 @@ main_loop = ->
   
   setTimeout main_loop, 50
 
+load_level(current_level)
 main_loop()

src/player.coffee

@@ -0,0 +1,43 @@
+# function: update player position
+update_player_position = () ->
+  new_position = player.position
+  if keymap[37] and toxy(player.position).x > 0 # left
+    new_position = new_position-1
+  if keymap[39] and toxy(player.position).x < config.map.width-1 # right
+    new_position = new_position+1
+  if keymap[38] and toxy(player.position).y > 0 # up
+    new_position = new_position - config.map.width
+  if keymap[40] and toxy(player.position).y < config.map.height-1 # down
+    new_position = new_position + config.map.width
+  
+  switch level[new_position]
+    # EXIT
+    when 7
+      current_level++
+      load_level(current_level)
+      return
+    # DOOR
+    when 2
+      if inventar.key
+        inventar.key = false
+        level[new_position] = 0
+    # KEY
+    when 1
+      inventar.key = true
+      level[new_position] = 0
+
+  #console.log enemy_layer
+  if enemy_layer[new_position] > 0 and !config.debug
+    config.gameover = true
+
+  if level[new_position] in blocks.walkable then player.position = new_position
+    
+# function: draw player
+draw_player = (position) ->
+  pixel(position, config.pixelsize, config.pixelsize, colors.player)
+
+break_walls = (position) ->
+  level[position-1] = 0 if level[position-1] is 5 or config.debug
+  level[position+1] = 0 if level[position+1] is 5 or config.debug
+  level[position-config.map.width] = 0 if level[position-config.map.width] is 5 or config.debug
+  level[position+config.map.width] = 0 if level[position+config.map.width] is 5 or config.debug