Hey you! Stop blocking the laser! (http://www.puzzlescript.net/play.html?p=3df1b85582d3d6fc4f24)

script.txt

title    Hey you! Stop blocking the laser!
(Hey you! Stop reading the “Hey you! Stop blocking the laser!” code!

 …or keep reading. I’m a comment, not a cop.
 This work is licensed under CC-BY-SA 4.0:
 https://creativecommons.org/licenses/by-sa/4.0/)

author                    sfiera
homepage                  sfiera.net
again_interval            0.1
run_rules_on_level_start
noaction

========
OBJECTS
========

Background .
Gray

Grass :
Green

Wall #
DarkBlue

(This guy is a total dweeb.)
NormalPlayer !
Black Blue Brown White LightBlue
.000.
43243
34234
.111.
.111.

(Sometimes overlaid by GlassPlayerActive, which makes the glasses glow.
 This is just a palette swap, so the colors are repeated.)
GlassPlayer @
LightBlue LightBlue LightBlue White White
.000.
43243
34234
.111.
.111.

ActiveGlassPlayer
Pink
..0..
0.00.
.00.0
..0..
..0..

(Red means stop!)
LaserPlayer $
DarkRed DarkRed DarkRed LightRed Red
.000.
43243
34234
.111.
.111.

(Is the player a crash dummy now?
 The "weak" color is yellow, but the eyes are probably enough indication.)
WeakPlayer %
Blue Blue Brown DarkBlue Yellow
.000.
43243
34234
.111.
.111.

NormalPill 1
Blue
.....
..0..
.000.
..0..
.....

GlassPill 2
LightBlue
.....
..0..
.000.
..0..
.....

LaserPill 4
Pink
.....
..0..
.000.
..0..
.....

WeakPill 5
Yellow
.....
..0..
.000.
..0..
.....

LaserH
Red
.....
.....
00000
.....
.....

LaserV
Red
..0..
..0..
..0..
..0..
..0..

ProjectorL L
Black Red DarkRed DarkBlue
00033
22203
11103
22203
00033

ProjectorU U
Black Red DarkRed DarkBlue
02120
02120
02120
30003
33333

ProjectorR R
Black Red DarkRed DarkBlue
33000
30222
30111
30222
33000

ProjectorD D
Black Red DarkRed DarkBlue
33333
30003
02120
02120
02120

Target O
DarkRed Black
00000
01110
01110
01110
00000

ActiveTarget
Red
.....
.000.
.000.
.000.
.....

LUMirror ◿
LightBlue
.....
....0
...00
..000
.0000

URMirror ◺
LightBlue
.....
0....
00...
000..
0000.

RDMirror ◸
LightBlue
0000.
000..
00...
0....
.....

DLMirror ◹
LightBlue
.0000
..000
...00
....0
.....

Prism +
LightBlue

ActivePrism
Pink
..0..
..0..
00000
..0..
..0..

WeakWall X
DarkBlue Yellow
00000
01010
00100
01010
00000

Explosion
Yellow

=======
LEGEND
=======

Player     = NormalPlayer or GlassPlayer or LaserPlayer or WeakPlayer
Pill       = NormalPill   or GlassPill   or LaserPill   or WeakPill
Opaque     = Wall or NormalPlayer
Mirror     = LUMirror or URMirror or RDMirror or DLMirror or Prism
Reflector  = Mirror or GlassPlayer
Weak       = WeakWall or WeakPlayer
Active     = ActiveTarget or ActivePrism or ActiveGlassPlayer
Decoration = Active or Explosion

ProjectorH = ProjectorL or ProjectorR
ProjectorV = ProjectorU or ProjectorD
Projector  = ProjectorH or ProjectorV or LaserPlayer
Laser      = LaserH or LaserV
Solid      = Opaque or Projector or Reflector or Target or Weak

NoEnterL   = Opaque or URMirror or RDMirror or ProjectorV or ProjectorR
NoEnterU   = Opaque or RDMirror or DLMirror or ProjectorH or ProjectorD
NoEnterR   = Opaque or DLMirror or LUMirror or ProjectorV or ProjectorL
NoEnterD   = Opaque or LUMirror or URMirror or ProjectorH or ProjectorU

NoExitL    = NoEnterL or Target
NoExitU    = NoEnterU or Target
NoExitR    = NoEnterR or Target
NoExitD    = NoEnterD or Target

=======
SOUNDS
=======

Player    move      12130107
Mirror    move      55615307
Explosion create    3904502
Pill      destroy   83117103
          endlevel  17621503
          startgame 40734708
          endgame   96107708
          undo      31053906
          restart   31053906

================
COLLISIONLAYERS
================

Background
Grass       (only in final level)
LaserH      (underneath mirrors so they look right)
LaserV      (can & often does overlap with LaserH)
Pill        (visible over lasers)
Solid       (most things)
Decoration  (visible over solid things)

======
RULES
======

(The only non-late rule: push single blocks.)
[> Player | Mirror] -> [> Player | > Mirror]

(A player changes to match an eaten pill.)
late [Player NormalPill] -> [NormalPlayer]
late [Player GlassPill ] -> [GlassPlayer]
late [Player LaserPill ] -> [LaserPlayer]
late [Player WeakPill  ] -> [WeakPlayer]

(Reinitialize lasers. Start from projectors.
 Projectors generate lasers pointing in all direction.
 However, they restrict the directions that lasers can exit in.)
late [Laser] -> []
late [Projector] -> [Projector LaserH LaserV]

(Lasers propagate horizontally and vertically as far as possible.
 If there's a mirror, the other orientation is added.
 There's a separate trait for tracking whether a laser can enter or leave;
 a laser can leave anything it can enter, except for a target.
 All of this happens in a single rule group.)
  late left  [LaserH no NoExitL | no NoEnterR] -> [LaserH | LaserH]
+ late up    [LaserV no NoExitU | no NoEnterD] -> [LaserV | LaserV]
+ late right [LaserH no NoExitR | no NoEnterL] -> [LaserH | LaserH]
+ late down  [LaserV no NoExitD | no NoEnterU] -> [LaserV | LaserV]
+ late [Laser Reflector] -> [LaserH LaserV Reflector]

(Reinitialize activity indicators.
 Targets, prisms, and glass players are active if there's a laser on them.)
late [Active] -> []
late [Laser Target     ] -> [Laser ActiveTarget      Target]
late [Laser Prism      ] -> [Laser ActivePrism       Prism]
late [Laser GlassPlayer] -> [Laser ActiveGlassPlayer GlassPlayer]

(Lasers destroy weak objects (including a weak player).
 Show the explosion, then run an "again" tick to then hide it.)
late [Explosion] -> []
late [Laser Weak] -> [Laser Explosion] again

==============
WINCONDITIONS
==============

all Target on Active  (Basic win condition.)
no Explosion          (Allow the "again" tick to run before winning.)
some Player           (Weak player can't win if they explode.)

=======
LEVELS
=======

Message "Hey you! Stop blocking the laser!"

(01 Step One)

#O###O#
#.....#
R+.!.◿#
#######

Message "Quit it!"

(02 Spinblocking)

####OO#
#+◸...#
#◸....L
#..#..#
#◺+..◿#
#+◺!◿+#
#######

(03 Over, easy)

###D###
#.....O
O..!..#
#.◸+◿.#
#.....#
###O###

(04 The Bends & the Means)

###O####
##..◺..#
##.◸!◹.#
#...+..L
#......#
###O#O##

(05 Back-handed)

######
#....#
#.◺O.#
#..D.#
#.◸..#
#.+!##
######

(06 Pinwheel)

####O##
#.....#
#..◸..#
O.◺+◹.O
#.!◿..#
#.....#
##U####

Message "Careful with that laser, buddy!"

(07 Ex-marks)

#######
#...#O#
#.+.#X#
#...X.#
O.!.X◿#
#...###
##U####

(08 Atria)

#########
#...#...#
#.◸.#.+.#
#...X...#
#O#X#X#O#
#...X!..L
#.◺.#...#
#...#...#
#########

(09 Hook, Line, Floater)

##D#####
#..#####
O!+..###
##.#.###
#..X.◹.#
#..X...#
##O#O###

Message "Don't eat that!"

(10 Pill Bug)

##D##
#...#
O.2.O
#...#
#.!.#
#...#
##O##

(11 Skullduggery)

#######
#.....#
#.◹.◸.#
#O.#.##
##[email protected]#
#######

(12 Ablation)

##D###
#....#
O.@◿◹#
##.◺.O
###..#
O....#
#XXXX#
######

(13 Kaiju Krunch)

#####
OX@X#
#X◹X#
R...O
#XX◿#
OXXX#
#####

Message "You gotta stop reflecting those lasers, kid!"

(14 Red Pill)

##O##
#...#
O.4.O
#...#
R.@.#
#...#
##O##

(15 I am Louis XIV)

###O###
#$.◿..#
O.◹.◺.O
#..◸..#
###O###

(16 Block-a-Block)

#######
O$.#..O
#.....#
##◺◸◿.#
##....#
#######

(17 Ten Thousand Red Dragons)

#######
O....O#
#.◸.◹.#
#.◺$◿.#
#O....O
#######

(18 Eight Kings)

#OOOOO#
O+....O
O.+.+.O
O.+$+.O
O.+.+.O
O....+O
#OOOOO#

Message "Here, this will get rid of the problem!"

(19 Tough Pill to Swallow

 Goals:
 - Make it impossible to finish the level without getting the pill.
 - Make it really easy and tempting to get the pill immediately.
 - Punish the player for doing so by having them immediately explode.
 - Clarify what happened by having other explosions as they walk up.
 - Have very few options, so that the level isn't actually difficult.)

#O#####
O.+5..O
#.#.◹.#
#.#.#.#
#◺X.X.#
###$###
###U###

(20 Reticle)

#######
#.....#
#.◿.◺.#
#.....L
#.◹%◸.#
#.....#
###O###

(21 Little Piggy)

#########
#.......#
#.◸.%.◹.#
#..#O#..#
#.+###+.#
#.......#
####U####

(22 Pill Popper)

###########
#...##...##
#.+..X2◹..#
#.4.OR....#
##X#####X##
#....LO.1.#
#..◺.#..+.#
##%..##...#
###########

Message "Scram!"

(23 Demo Man

 Goals:
 - Destroy the entire building as the player leaves.
 - Make it impossible to deviate from the path (two layers thick).
 - Have the level end when the player stops blocking the laser :)

:::::::::::::
:XXXX#O#XXXX:
:X..++!+◿..X:
:X..+◹+◸+..X:
:X..◿+.◿◸+.X:
:X..◸◿.+◿..X:
:X..◿+.◸+..X:
:X+++◿.◸◹..X:
:X..◸◹.+◺.+X:
:+..+◺.◹◹.++:
:XXXXX.XXXXX:
::::::.::::::
::::::U::::::