small fixes

.ackrc

@@ -0,0 +1,505 @@
+--ignore-ack-defaults
+# This is the default ackrc for ack version v3.7.0.
+
+# There are four different ways to match
+#
+# is:  Match the filename exactly
+#
+# ext: Match the extension of the filename exactly
+#
+# match: Match the filename against a Perl regular expression
+#
+# firstlinematch: Match the first 250 characters of the first line
+#   of text against a Perl regular expression.  This is only for
+#   the --type-add option.
+
+### Directories to ignore
+
+# Bazaar
+# https://bazaar.canonical.com/
+--ignore-directory=is:.bzr
+
+# Codeville
+# http://freshmeat.sourceforge.net/projects/codeville
+--ignore-directory=is:.cdv
+
+# Interface Builder (Xcode)
+# https://en.wikipedia.org/wiki/Interface_Builder
+--ignore-directory=is:~.dep
+--ignore-directory=is:~.dot
+--ignore-directory=is:~.nib
+--ignore-directory=is:~.plst
+
+# Git
+# https://git-scm.com/
+--ignore-directory=is:.git
+# When submodules are used, .git is a file.
+--ignore-file=is:.git
+
+# Mercurial
+# https://www.mercurial-scm.org/
+--ignore-directory=is:.hg
+
+# Quilt
+# https://directory.fsf.org/wiki/Quilt
+--ignore-directory=is:.pc
+
+# Subversion
+# https://subversion.apache.org/
+--ignore-directory=is:.svn
+
+# Monotone
+# https://www.monotone.ca/
+--ignore-directory=is:_MTN
+
+# CVS
+# https://savannah.nongnu.org/projects/cvs
+--ignore-directory=is:CVS
+
+# RCS
+# https://www.gnu.org/software/rcs/
+--ignore-directory=is:RCS
+
+# SCCS
+# https://en.wikipedia.org/wiki/Source_Code_Control_System
+--ignore-directory=is:SCCS
+
+# darcs
+# http://darcs.net/
+--ignore-directory=is:_darcs
+
+# Vault/Fortress
+--ignore-directory=is:_sgbak
+
+# autoconf
+# https://www.gnu.org/software/autoconf/
+--ignore-directory=is:autom4te.cache
+
+# Perl module building
+--ignore-directory=is:blib
+--ignore-directory=is:_build
+
+# Perl Devel::Cover module's output directory
+# https://metacpan.org/release/Devel-Cover
+--ignore-directory=is:cover_db
+
+# Node modules created by npm
+--ignore-directory=is:node_modules
+
+# CMake cache
+# https://www.cmake.org/
+--ignore-directory=is:CMakeFiles
+
+# Eclipse workspace folder
+# https://eclipse.org/
+--ignore-directory=is:.metadata
+
+# Cabal (Haskell) sandboxes
+# https://www.haskell.org/cabal/users-guide/installing-packages.html
+--ignore-directory=is:.cabal-sandbox
+
+# Python caches
+# https://docs.python.org/3/tutorial/modules.html
+--ignore-directory=is:__pycache__
+--ignore-directory=is:.pytest_cache
+
+# macOS Finder remnants
+--ignore-directory=is:__MACOSX
+--ignore-file=is:.DS_Store
+
+### Files to ignore
+
+# Backup files
+--ignore-file=ext:bak
+--ignore-file=match:/~$/
+
+# Emacs swap files
+--ignore-file=match:/^#.+#$/
+
+# vi/vim swap files https://www.vim.org/
+--ignore-file=match:/[._].*[.]swp$/
+
+# core dumps
+--ignore-file=match:/core[.]\d+$/
+
+# minified JavaScript
+--ignore-file=match:/[.-]min[.]js$/
+--ignore-file=match:/[.]js[.]min$/
+
+# minified CSS
+--ignore-file=match:/[.]min[.]css$/
+--ignore-file=match:/[.]css[.]min$/
+
+# JS and CSS source maps
+--ignore-file=match:/[.]js[.]map$/
+--ignore-file=match:/[.]css[.]map$/
+
+# PDFs, because they pass Perl's -T detection
+--ignore-file=ext:pdf
+
+# Common graphics, just as an optimization
+--ignore-file=ext:gif,jpg,jpeg,png
+
+# Common archives, as an optimization
+--ignore-file=ext:gz,tar,tgz,zip
+
+# Python compiled modules
+--ignore-file=ext:pyc,pyd,pyo
+
+# Python's pickle serialization format
+# https://docs.python.org/2/library/pickle.html#example
+# https://docs.python.org/3.7/library/pickle.html#examples
+--ignore-file=ext:pkl,pickle
+
+# C extensions
+--ignore-file=ext:so
+
+# Compiled gettext files
+--ignore-file=ext:mo
+
+# Visual Studio user and workspace settings
+# https://code.visualstudio.com/docs/getstarted/settings
+--ignore-dir=is:.vscode
+
+### Filetypes defined
+
+# Makefiles
+# https://www.gnu.org/s/make/
+--type-add=make:ext:mk
+--type-add=make:ext:mak
+--type-add=make:is:makefile
+--type-add=make:is:Makefile
+--type-add=make:is:Makefile.Debug
+--type-add=make:is:Makefile.Release
+--type-add=make:is:GNUmakefile
+
+# Rakefiles
+# https://rake.rubyforge.org/
+--type-add=rake:is:Rakefile
+
+# CMake
+# https://cmake.org/
+--type-add=cmake:is:CMakeLists.txt
+--type-add=cmake:ext:cmake
+
+# Bazel build tool
+# https://docs.bazel.build/versions/master/skylark/bzl-style.html
+--type-add=bazel:ext:bzl
+# https://docs.bazel.build/versions/master/guide.html#bazelrc-the-bazel-configuration-file
+--type-add=bazel:ext:bazelrc
+# https://docs.bazel.build/versions/master/build-ref.html#BUILD_files
+--type-add=bazel:is:BUILD
+# https://docs.bazel.build/versions/master/build-ref.html#workspace
+--type-add=bazel:is:WORKSPACE
+
+
+# Actionscript
+--type-add=actionscript:ext:as,mxml
+
+# Ada
+# https://www.adaic.org/
+--type-add=ada:ext:ada,adb,ads
+
+# ASP
+# https://docs.microsoft.com/en-us/previous-versions/office/developer/server-technologies/aa286483(v=msdn.10)
+--type-add=asp:ext:asp
+
+# ASP.Net
+# https://dotnet.microsoft.com/apps/aspnet
+--type-add=aspx:ext:master,ascx,asmx,aspx,svc
+
+# Assembly
+--type-add=asm:ext:asm,s
+
+# DOS/Windows batch
+--type-add=batch:ext:bat,cmd
+
+# ColdFusion
+# https://en.wikipedia.org/wiki/ColdFusion
+--type-add=cfmx:ext:cfc,cfm,cfml
+
+# Clojure
+# https://clojure.org/
+--type-add=clojure:ext:clj,cljs,edn,cljc
+
+# C
+# .xs are Perl C files
+--type-add=cc:ext:c,h,xs
+
+# C header files
+--type-add=hh:ext:h
+
+# CoffeeScript
+# https://coffeescript.org/
+--type-add=coffeescript:ext:coffee
+
+# C++
+--type-add=cpp:ext:cpp,cc,cxx,m,hpp,hh,h,hxx
+
+# C++ header files
+--type-add=hpp:ext:hpp,hh,h,hxx
+
+# C#
+--type-add=csharp:ext:cs
+
+# Crystal-lang
+# https://crystal-lang.org/
+--type-add=crystal:ext:cr,ecr
+
+# CSS
+# https://www.w3.org/Style/CSS/
+--type-add=css:ext:css
+
+# Dart
+# https://dart.dev/
+--type-add=dart:ext:dart
+
+# Delphi
+# https://en.wikipedia.org/wiki/Embarcadero_Delphi
+--type-add=delphi:ext:pas,int,dfm,nfm,dof,dpk,dproj,groupproj,bdsgroup,bdsproj
+
+# Elixir
+# https://elixir-lang.org/
+--type-add=elixir:ext:ex,exs
+
+# Elm
+# https://elm-lang.org
+--type-add=elm:ext:elm
+
+# Emacs Lisp
+# https://www.gnu.org/software/emacs
+--type-add=elisp:ext:el
+
+# Erlang
+# https://www.erlang.org/
+--type-add=erlang:ext:erl,hrl
+
+# Fortran
+# https://en.wikipedia.org/wiki/Fortran
+--type-add=fortran:ext:f,f77,f90,f95,f03,for,ftn,fpp
+
+# Go
+# https://golang.org/
+--type-add=go:ext:go
+
+# Groovy
+# https://www.groovy-lang.org/
+--type-add=groovy:ext:groovy,gtmpl,gpp,grunit,gradle
+
+# GSP
+# https://gsp.grails.org/
+--type-add=gsp:ext:gsp
+
+# Haskell
+# https://www.haskell.org/
+--type-add=haskell:ext:hs,lhs
+
+# HTML
+--type-add=html:ext:htm,html,xhtml
+
+# Jade
+# http://jade-lang.com/
+--type-add=jade:ext:jade
+
+# Java
+# https://www.oracle.com/technetwork/java/index.html
+--type-add=java:ext:java,properties
+
+# JavaScript
+--type-add=js:ext:js
+
+# JSP
+# https://www.oracle.com/technetwork/java/javaee/jsp/index.html
+--type-add=jsp:ext:jsp,jspx,jspf,jhtm,jhtml
+
+# JSON
+# https://json.org/
+--type-add=json:ext:json
+
+# Kotlin
+# https://kotlinlang.org/
+--type-add=kotlin:ext:kt,kts
+
+# Less
+# http://www.lesscss.org/
+--type-add=less:ext:less
+
+# Common Lisp
+# https://common-lisp.net/
+--type-add=lisp:ext:lisp,lsp
+
+# Lua
+# https://www.lua.org/
+--type-add=lua:ext:lua
+--type-add=lua:firstlinematch:/^#!.*\blua(jit)?/
+
+# Markdown
+# https://en.wikipedia.org/wiki/Markdown
+--type-add=markdown:ext:md,markdown
+# We understand that there are many ad hoc extensions for markdown
+# that people use.  .md and .markdown are the two that ack recognizes.
+# You are free to add your own in your ackrc file.
+
+# Matlab
+# https://en.wikipedia.org/wiki/MATLAB
+--type-add=matlab:ext:m
+
+# Objective-C
+--type-add=objc:ext:m,h
+
+# Objective-C++
+--type-add=objcpp:ext:mm,h
+
+# OCaml
+# https://ocaml.org/
+--type-add=ocaml:ext:ml,mli,mll,mly
+
+# Perl
+# https://perl.org/
+--type-add=perl:ext:pl,pm,pod,t,psgi
+--type-add=perl:firstlinematch:/^#!.*\bperl/
+
+# Perl tests
+--type-add=perltest:ext:t
+
+# Perl's Plain Old Documentation format, POD
+--type-add=pod:ext:pod
+
+# PHP
+# https://www.php.net/
+--type-add=php:ext:php,phpt,php3,php4,php5,phtml
+--type-add=php:firstlinematch:/^#!.*\bphp/
+
+# Plone
+# https://plone.org/
+--type-add=plone:ext:pt,cpt,metadata,cpy,py
+
+# PowerShell
+# https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_scripts
+# https://learn.microsoft.com/en-us/powershell/scripting/developer/module/understanding-a-windows-powershell-module
+--type-add=powershell:ext:ps1,psm1
+
+# PureScript
+# https://www.purescript.org
+--type-add=purescript:ext:purs
+
+# Python
+# https://www.python.org/
+--type-add=python:ext:py
+--type-add=python:firstlinematch:/^#!.*\bpython/
+
+# R
+# https://www.r-project.org/
+# https://r4ds.had.co.nz/r-markdown.html
+--type-add=rr:ext:R,Rmd
+
+# reStructured Text
+# https://docutils.sourceforge.io/rst.html
+--type-add=rst:ext:rst
+
+# Ruby
+# https://www.ruby-lang.org/
+--type-add=ruby:ext:rb,rhtml,rjs,rxml,erb,rake,spec
+--type-add=ruby:is:Rakefile
+--type-add=ruby:firstlinematch:/^#!.*\bruby/
+
+# Rust
+# https://www.rust-lang.org/
+--type-add=rust:ext:rs
+
+# Sass
+# https://sass-lang.com
+--type-add=sass:ext:sass,scss
+
+# Scala
+# https://www.scala-lang.org/
+--type-add=scala:ext:scala,sbt
+
+# Scheme
+# https://groups.csail.mit.edu/mac/projects/scheme/
+--type-add=scheme:ext:scm,ss
+
+# Shell
+--type-add=shell:ext:sh,bash,csh,tcsh,ksh,zsh,fish
+--type-add=shell:firstlinematch:/^#!.*\b(?:ba|t?c|k|z|fi)?sh\b/
+
+# Smalltalk
+# http://www.smalltalk.org/
+--type-add=smalltalk:ext:st
+
+# Smarty
+# https://www.smarty.net/
+--type-add=smarty:ext:tpl
+
+# SQL
+# https://www.iso.org/standard/45498.html
+--type-add=sql:ext:sql,ctl
+
+# Stylus
+# http://stylus-lang.com/
+--type-add=stylus:ext:styl
+
+# SVG
+# https://en.wikipedia.org/wiki/Scalable_Vector_Graphics
+--type-add=svg:ext:svg
+
+# Swift
+# https://developer.apple.com/swift/
+--type-add=swift:ext:swift
+--type-add=swift:firstlinematch:/^#!.*\bswift/
+
+# Tcl
+# https://www.tcl.tk/
+--type-add=tcl:ext:tcl,itcl,itk
+
+# TeX & LaTeX
+# https://www.latex-project.org/
+--type-add=tex:ext:tex,cls,sty
+
+# Template Toolkit (Perl)
+# http//template-toolkit.org/
+--type-add=ttml:ext:tt,tt2,ttml
+
+# TOML
+# https://toml.io/
+--type-add=toml:ext:toml
+
+# TypeScript
+# https://www.typescriptlang.org/
+--type-add=ts:ext:ts,tsx
+
+# Visual Basic
+--type-add=vb:ext:bas,cls,frm,ctl,vb,resx
+
+# Verilog
+--type-add=verilog:ext:v,vh,sv
+
+# VHDL
+# http://www.eda.org/twiki/bin/view.cgi/P1076/WebHome
+--type-add=vhdl:ext:vhd,vhdl
+
+# Vim
+# https://www.vim.org/
+--type-add=vim:ext:vim
+
+# XML
+# https://www.w3.org/TR/REC-xml/
+--type-add=xml:ext:xml,dtd,xsd,xsl,xslt,ent,wsdl
+--type-add=xml:firstlinematch:/<[?]xml/
+
+# YAML
+# https://yaml.org/
+--type-add=yaml:ext:yaml,yml
+
+
+
+# TOM
+--ignore-directory=is:src
+--ignore-directory=is:tmp
+--ignore-directory=is:fonts
+--ignore-file=ext:ldtk
+--ignore-file=ext:png
+--ignore-file=ext:ase
+--ignore-file=ext:json
+--ignore-file=ext:svg
+

Makefile

@@ -30,3 +30,6 @@ wasm: buildwasm zipwasm
 
 test:
 	@echo $(VERSION)
+
+nixshell:
+	nix-shell -p xorg.libX11 xorg.libXrandr libGL xorg.libXcursor xorg.libXinerama xorg.libXi xorg.libXxf86vm xorg_sys_opengl

TODO.md

@@ -1,22 +1,8 @@
 ## Levels:
 
-- Add shaders for animation (player destruction etc)
-
 - Start New game starts with last played level, better add a Resume
   Game menu item for this and use Start New always for level 1.
 
-- for finding caller:
-	pc := make([]uintptr, 10)
-	n := runtime.Callers(0, pc)
-	pc = pc[:n]
-	fs := runtime.CallersFrames(pc)
-	source, _ := fs.Next()
-	source, _ = fs.Next()
-	source, _ = fs.Next()
-
-	slog.Debug("get observer", "minmoves", observer.LevelScore,
-		"file", source.File, "line", source.Line)
-
 - Turn menu button in hud_system (events in level_scene!) into ebitenui button
 
 - Obstacle don't stop at collectibles
@@ -29,11 +15,10 @@
 - Add player collision animation
 
 - Create pixel art ui elements (button, list things) and ui borders/backgrounds
+  Replace HUD with pixel art variant
 
 - Modify font and font color matching the palette
 
-- Replace HUD with pixel art variant
-
 - On game start respond to any key (ebitengine-input has an anykey func)
 
 - Switch to use https://github.com/quasilyte/ebitengine-input
@@ -47,19 +32,10 @@
 - Add save to disk feature including settings and player
   accomplishements (FIXME: find the lib, asked in Discord)
 
-- Add coded animated background like in https://github.com/tinne26/bindless/tree/main/src/misc/background
-
 -  Rework sprites  (again!) to  match stellar  background: maybe  more
   technical tiles and items? Like some robotic setup?
   
-- Fix collision snapin: sometimes, when an entity moves to the right
-  or south (NOT left or north!) it snaps in visibly, so a short wobble
-  can be seen.
   
-- Rework animation system: since it is impossible to assign multiple
-  animation types to an entity via LDTK, hard code it in Tiles. Keep
-  implementation though. CAUTION: last time I changed this, the
-  collectible detonation didn't work anymore!
   
   
   
@@ -82,3 +58,17 @@
   Collider.IntersectResolve => func(newpos) {player.pos = newpos; player.vel = stop}
 - in the end it must be  possible to add new entities without the need
   to write a collision check for them, but have collision detection anyway!
+
+## Just in case stuff
+
+- for finding caller:
+	pc := make([]uintptr, 10)
+	n := runtime.Callers(0, pc)
+	pc = pc[:n]
+	fs := runtime.CallersFrames(pc)
+	source, _ := fs.Next()
+	source, _ = fs.Next()
+	source, _ = fs.Next()
+
+	slog.Debug("get observer", "minmoves", observer.LevelScore,
+		"file", source.File, "line", source.Line)

assets/loader-levels.go

@@ -18,6 +18,7 @@ type TileAnimation struct {
 	OnCollision   bool // wether to animate a collision
 	OnDestruction bool // wether to animate destruction
 	OnIdle        bool // wether to animate during idling
+	OnMoving      bool // wether to animate during moving
 
 	CollisionSheet   AnimationSet // an entry in assets.Animations[name]
 	DestructionSheet AnimationSet

assets/loader-sprites.go

@@ -45,7 +45,7 @@ type AnimationMeta struct {
 // Needed to thaw sprite set written by asesprite
 type AnimationJSON struct {
 	Meta   AnimationMeta             `json:"Meta"`
-	Frames []AnimationFrame `json:"frames"`
+	Frames map[string]AnimationFrame `json:"frames"`
 }
 
 // used to store Animation data
@@ -133,7 +133,7 @@ func ReadJson(imagefile fs.DirEntry, fd fs.File) AnimationJSON {
 
 	err := json.Unmarshal(buf.Bytes(), &animationjson)
 	if err != nil {
-		log.Fatalf("failed to parse JSON: %s", err)
+		log.Fatalf("failed to parse JSON in %s: %s", imagefile, err)
 	}
 
 	return animationjson

assets/space/correct-oil.pal

@@ -0,0 +1,39 @@
+JASC-PAL
+0100
+36
+0 0 0
+0 0 0
+14 14 14
+29 29 29
+51 51 51
+80 80 80
+99 99 99
+122 122 122
+167 167 167
+192 192 192
+228 228 228
+251 245 239
+242 211 171
+237 193 132
+229 164 88
+222 112 44
+181 52 28
+139 22 22
+198 159 165
+183 134 134
+164 102 102
+133 79 79
+110 65 83
+74 44 65
+174 166 195
+160 130 170
+139 109 156
+119 86 127
+108 76 112
+64 53 79
+89 97 153
+73 77 126
+49 57 85
+37 38 63
+24 23 38
+16 13 21

assets/space/enhanced-space.pal

@@ -0,0 +1,45 @@
+JASC-PAL
+0100
+42
+0 0 0
+0 0 0
+14 14 14
+29 29 29
+51 51 51
+80 80 80
+99 99 99
+122 122 122
+167 167 167
+192 192 192
+228 228 228
+251 245 239
+242 211 171
+255 227 160
+255 216 117
+255 202 60
+255 168 36
+255 141 0
+73 77 126
+63 69 136
+54 61 145
+44 52 155
+35 44 164
+26 36 173
+39 39 68
+31 31 76
+27 27 80
+22 22 85
+17 17 90
+14 14 93
+139 109 156
+142 98 167
+145 86 179
+150 68 197
+154 52 213
+158 36 229
+198 159 165
+204 153 161
+212 145 155
+221 136 149
+230 127 143
+241 116 135

assets/space/oilshades.pal

@@ -0,0 +1,33 @@
+JASC-PAL
+0100
+30
+242 211 171
+236 199 134
+230 193 96
+224 176 50
+205 142 32
+198 159 165
+186 140 144
+180 129 129
+172 115 115
+147 87 98
+139 109 156
+118 93 138
+97 80 118
+82 68 100
+62 51 75
+73 77 126
+61 61 106
+51 48 83
+37 33 56
+27 21 37
+39 39 68
+39 39 68
+39 39 68
+39 39 68
+39 39 68
+251 245 239
+223 207 198
+194 178 174
+171 157 155
+146 134 130

assets/space/space.pal

@@ -0,0 +1,42 @@
+JASC-PAL
+0100
+39
+32 0 59
+63 0 83
+108 0 108
+146 0 124
+187 0 151
+236 0 178
+255 19 186
+255 64 190
+255 113 213
+255 147 231
+255 186 253
+245 220 255
+255 255 255
+0 0 0
+12 12 12
+26 26 26
+39 39 39
+54 54 54
+71 71 71
+86 86 86
+99 99 99
+118 118 118
+133 133 133
+153 153 153
+177 177 177
+205 205 205
+42 2 0
+52 9 0
+71 24 0
+94 46 0
+131 71 0
+165 96 0
+201 106 0
+243 119 0
+255 165 41
+255 186 82
+255 239 169
+255 250 211
+255 255 247

assets/sprites/Makefile

@@ -0,0 +1,9 @@
+all:
+	@echo noting
+
+clean:
+	./rename.sh door1.png door-closed.png
+	./rename.sh door2.png door-open.png
+	./rename.sh transient1.png transient-open.png
+	./rename.sh transient2.png transient-closed.png
+	fd '[2-9]' --exec rm

assets/sprites/correct-oil.pal

@@ -0,0 +1,39 @@
+JASC-PAL
+0100
+36
+0 0 0
+0 0 0
+14 14 14
+29 29 29
+51 51 51
+80 80 80
+99 99 99
+122 122 122
+167 167 167
+192 192 192
+228 228 228
+251 245 239
+242 211 171
+237 193 132
+229 164 88
+222 112 44
+181 52 28
+139 22 22
+198 159 165
+183 134 134
+164 102 102
+133 79 79
+110 65 83
+74 44 65
+174 166 195
+160 130 170
+139 109 156
+119 86 127
+108 76 112
+64 53 79
+89 97 153
+73 77 126
+49 57 85
+37 38 63
+24 23 38
+16 13 21

assets/sprites/obstacle-alldirections-idle.json

@@ -0,0 +1,70 @@
+{ "frames": {
+   "obstacle-alldirections 0.ase": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-alldirections 1.ase": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-alldirections 2.ase": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-alldirections 3.ase": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-alldirections 4.ase": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-alldirections 5.ase": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "obstacle-alldirections-idle.png",
+  "format": "I8",
+  "size": { "w": 192, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+  ],
+  "layers": [
+   { "name": "enemybot-jets", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-body", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turm", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret-head", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}

assets/sprites/obstacle-east-idle.json

@@ -0,0 +1,92 @@
+{ "frames": {
+   "obstacle-east 0.ase": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 1.ase": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 2.ase": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 3.ase": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 4.ase": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 5.ase": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 6.ase": {
+    "frame": { "x": 192, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 7.ase": {
+    "frame": { "x": 224, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-east 8.ase": {
+    "frame": { "x": 256, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "obstacle-east-idle.png",
+  "format": "I8",
+  "size": { "w": 288, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+  ],
+  "layers": [
+   { "name": "enemybot-jets", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-body", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}

assets/sprites/obstacle-north-idle.json

@@ -0,0 +1,92 @@
+{ "frames": {
+   "obstacle-north 0.ase": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 1.ase": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 2.ase": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 3.ase": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 4.ase": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 5.ase": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 6.ase": {
+    "frame": { "x": 192, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 7.ase": {
+    "frame": { "x": 224, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-north 8.ase": {
+    "frame": { "x": 256, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "obstacle-north-idle.png",
+  "format": "I8",
+  "size": { "w": 288, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+  ],
+  "layers": [
+   { "name": "enemybot-jets", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-body", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}

assets/sprites/obstacle-south-idle.json

@@ -0,0 +1,92 @@
+{ "frames": {
+   "obstacle-south 0.ase": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 1.ase": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 2.ase": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 3.ase": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 4.ase": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 5.ase": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 6.ase": {
+    "frame": { "x": 192, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 7.ase": {
+    "frame": { "x": 224, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-south 8.ase": {
+    "frame": { "x": 256, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "obstacle-south-idle.png",
+  "format": "I8",
+  "size": { "w": 288, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+  ],
+  "layers": [
+   { "name": "enemybot-jets", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-body", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}

assets/sprites/obstacle-west-idle.json

@@ -0,0 +1,92 @@
+{ "frames": {
+   "obstacle-west 0.png": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 1.png": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 2.png": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 3.png": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 4.png": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 5.png": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 6.png": {
+    "frame": { "x": 192, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 7.png": {
+    "frame": { "x": 224, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "obstacle-west 8.png": {
+    "frame": { "x": 256, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "obstacle-west-idle.png",
+  "format": "I8",
+  "size": { "w": 288, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+  ],
+  "layers": [
+   { "name": "enemybot-jets", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-turret", "opacity": 255, "blendMode": "normal" },
+   { "name": "enemybot-body", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}

assets/sprites/rename.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+from=$1
+to=$2
+
+if test -e "$from"; then
+    mv $from $to
+fi

assets/sprites/robot-idle.json

@@ -0,0 +1,104 @@
+{ "frames": {
+   "robot #idle 0.ase": {
+    "frame": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 1.ase": {
+    "frame": { "x": 32, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 2.ase": {
+    "frame": { "x": 64, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 3.ase": {
+    "frame": { "x": 96, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 4.ase": {
+    "frame": { "x": 128, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 5.ase": {
+    "frame": { "x": 160, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 6.ase": {
+    "frame": { "x": 192, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 7.ase": {
+    "frame": { "x": 224, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 8.ase": {
+    "frame": { "x": 256, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   },
+   "robot #idle 9.ase": {
+    "frame": { "x": 288, "y": 0, "w": 32, "h": 32 },
+    "rotated": false,
+    "trimmed": false,
+    "spriteSourceSize": { "x": 0, "y": 0, "w": 32, "h": 32 },
+    "sourceSize": { "w": 32, "h": 32 },
+    "duration": 100
+   }
+ },
+ "meta": {
+  "app": "http://www.aseprite.org/",
+  "version": "1.x-dev",
+  "image": "robot-idle.png",
+  "format": "I8",
+  "size": { "w": 320, "h": 32 },
+  "scale": "1",
+  "frameTags": [
+   { "name": "Inactive", "from": 0, "to": 0, "direction": "forward", "color": "#000000ff" },
+   { "name": "idle", "from": 1, "to": 10, "direction": "forward", "color": "#000000ff" }
+  ],
+  "layers": [
+   { "name": "fire", "opacity": 255, "blendMode": "normal" },
+   { "name": "engines", "opacity": 255, "blendMode": "normal" },
+   { "name": "getriebe", "opacity": 255, "blendMode": "normal" },
+   { "name": "head", "opacity": 255, "blendMode": "normal" },
+   { "name": "noise", "opacity": 255, "blendMode": "normal" }
+  ],
+  "slices": [
+  ]
+ }
+}