Add gun items

Revolver, Shotgun, Rifle,
Assult Rifle, Super Soaker

- Add Items script and IItems interface,
  stores and manages selected item
- Add Weapon script controls gun parameters,
  such as effective range, spread and recoil
- Weapon sprites (32x32 Firearm Pack)
- Weapon sounds (made with rFXGen)
- Move BlockPos and Facing to own files

CREDITS.md

@@ -1,3 +1,14 @@
+# Tools
+
+## rFXGen ZERO
+
+Used to create simple retro sound effects in the game.
+
+**URL:** https://raylibtech.itch.io/rfxgen  
+**Author:** raylib technologies  
+**License:** zlib License  
+
+
 # Assets
 
 ## Heartbit Font
@@ -9,3 +20,11 @@
 > You'll need to pay the suggested price for commercial projects.
 
 **Notes:** Modified `1` and `V` characters.
+
+## 32x32 Firearm Pack
+
+**URL:** https://ma9ici4n.itch.io/ma9ici4nweaponpack  
+**Author:** ma9ici4n  
+**License:** Custom  
+> You can download and use this pack anywhere you want without crediting me.
+> However credit is still appreciated. Do not redistribute this under your own name.

gfx/guns/AK47.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/AK47.png-b3a2177e704ef07670dcc3fbcf5fe2b5.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/AK47.png"
+dest_files=[ "res://.import/AK47.png-b3a2177e704ef07670dcc3fbcf5fe2b5.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Blunderbuss.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Blunderbuss.png-f9541a9afbcc7503436ddb33d87600bd.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Blunderbuss.png"
+dest_files=[ "res://.import/Blunderbuss.png-f9541a9afbcc7503436ddb33d87600bd.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/BowArrow.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/BowArrow.png-6b5dd8d866365f0485866a478b6a0cd1.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/BowArrow.png"
+dest_files=[ "res://.import/BowArrow.png-6b5dd8d866365f0485866a478b6a0cd1.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/ColtSingleActionArmy.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/ColtSingleActionArmy.png-4ffeb11f8b9db175b4a4529b4533c26c.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/ColtSingleActionArmy.png"
+dest_files=[ "res://.import/ColtSingleActionArmy.png-4ffeb11f8b9db175b4a4529b4533c26c.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Derringer.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Derringer.png-43093e7c64541e63c047f9a45f88d5c6.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Derringer.png"
+dest_files=[ "res://.import/Derringer.png-43093e7c64541e63c047f9a45f88d5c6.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/DoubleBarrel.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/DoubleBarrel.png-0d2a0a5877ea0832296b59ab69073d32.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/DoubleBarrel.png"
+dest_files=[ "res://.import/DoubleBarrel.png-0d2a0a5877ea0832296b59ab69073d32.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/FNScar.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/FNScar.png-6b3a68f387ec6ab89122d03cf241a16f.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/FNScar.png"
+dest_files=[ "res://.import/FNScar.png-6b3a68f387ec6ab89122d03cf241a16f.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/LaserPistol.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/LaserPistol.png-5913c4141046557751080b5a6a4dcbb9.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/LaserPistol.png"
+dest_files=[ "res://.import/LaserPistol.png-5913c4141046557751080b5a6a4dcbb9.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/M1911.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/M1911.png-fb90f2bf6081ebaaa4570e1f13d26084.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/M1911.png"
+dest_files=[ "res://.import/M1911.png-fb90f2bf6081ebaaa4570e1f13d26084.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/M1Garand.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/M1Garand.png-8ea72bda0579460c0ab21455199ddf51.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/M1Garand.png"
+dest_files=[ "res://.import/M1Garand.png-8ea72bda0579460c0ab21455199ddf51.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/MP40.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/MP40.png-541ce9f02220339ddd77f7c18bfb102c.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/MP40.png"
+dest_files=[ "res://.import/MP40.png-541ce9f02220339ddd77f7c18bfb102c.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/MauserC96.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/MauserC96.png-e3f26ff256559f76cbf4380e8c78de28.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/MauserC96.png"
+dest_files=[ "res://.import/MauserC96.png-e3f26ff256559f76cbf4380e8c78de28.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/MoneyLauncher.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/MoneyLauncher.png-38558cda7f759b8a828a02520ae7fa9d.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/MoneyLauncher.png"
+dest_files=[ "res://.import/MoneyLauncher.png-38558cda7f759b8a828a02520ae7fa9d.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/P90.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/P90.png-b84ced4c3b84daba88bcb46f3f2fb629.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/P90.png"
+dest_files=[ "res://.import/P90.png-b84ced4c3b84daba88bcb46f3f2fb629.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/PlasmaBlaster.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/PlasmaBlaster.png-662106c2dd5c775f0121fd667460ead0.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/PlasmaBlaster.png"
+dest_files=[ "res://.import/PlasmaBlaster.png-662106c2dd5c775f0121fd667460ead0.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/RocketLauncher.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/RocketLauncher.png-fa5fe47507c4a5106da9783313b29ce2.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/RocketLauncher.png"
+dest_files=[ "res://.import/RocketLauncher.png-fa5fe47507c4a5106da9783313b29ce2.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Sawed-OffWinchester1897.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Sawed-OffWinchester1897.png-1828856c6c85c4c85f9f239d881cc72a.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Sawed-OffWinchester1897.png"
+dest_files=[ "res://.import/Sawed-OffWinchester1897.png-1828856c6c85c4c85f9f239d881cc72a.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/SuperSoaker.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/SuperSoaker.png-ad26a5aee73722ca7f641ac2f8616b8a.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/SuperSoaker.png"
+dest_files=[ "res://.import/SuperSoaker.png-ad26a5aee73722ca7f641ac2f8616b8a.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/ThombsonSMG.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/ThombsonSMG.png-3e71e65b4033797b49413ad61792d18e.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/ThombsonSMG.png"
+dest_files=[ "res://.import/ThombsonSMG.png-3e71e65b4033797b49413ad61792d18e.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Uzi.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Uzi.png-1c37865966347d689e7d0d5728dc5079.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Uzi.png"
+dest_files=[ "res://.import/Uzi.png-1c37865966347d689e7d0d5728dc5079.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/WaltherP38.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/WaltherP38.png-c8185be1b2a1769c60b86322c1f29049.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/WaltherP38.png"
+dest_files=[ "res://.import/WaltherP38.png-c8185be1b2a1769c60b86322c1f29049.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Winchester1873.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Winchester1873.png-1b4ec1d71f56d7af98fb910a51fa5323.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Winchester1873.png"
+dest_files=[ "res://.import/Winchester1873.png-1b4ec1d71f56d7af98fb910a51fa5323.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

gfx/guns/Winchester1897.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Winchester1897.png-a4adb39ab0537aef28a489a5a9e49483.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://gfx/guns/Winchester1897.png"
+dest_files=[ "res://.import/Winchester1897.png-a4adb39ab0537aef28a489a5a9e49483.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

scene/ClientScene.tscn

@@ -47,9 +47,9 @@ anchor_left = 0.5
 anchor_top = 0.5
 anchor_right = 0.5
 anchor_bottom = 0.5
-margin_left = -36.0
+margin_left = -29.0
 margin_top = -16.0
-margin_right = 36.0
+margin_right = 29.0
 margin_bottom = 16.0
 theme = ExtResource( 10 )
 align = 1

scene/Player.tscn

@@ -1,10 +1,21 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=18 format=2]
 
 [ext_resource path="res://ui_theme.tres" type="Theme" id=1]
 [ext_resource path="res://gfx/player.png" type="Texture" id=2]
 [ext_resource path="res://src/Objects/Player.cs" type="Script" id=3]
-[ext_resource path="res://src/CreativeBuilding.cs" type="Script" id=4]
+[ext_resource path="res://src/Items/CreativeBuilding.cs" type="Script" id=4]
+[ext_resource path="res://src/Items/Items.cs" type="Script" id=5]
 [ext_resource path="res://gfx/block.png" type="Texture" id=6]
+[ext_resource path="res://gfx/guns/ColtSingleActionArmy.png" type="Texture" id=7]
+[ext_resource path="res://src/Items/Weapon.cs" type="Script" id=8]
+[ext_resource path="res://gfx/guns/DoubleBarrel.png" type="Texture" id=9]
+[ext_resource path="res://gfx/guns/SuperSoaker.png" type="Texture" id=10]
+[ext_resource path="res://gfx/guns/M1Garand.png" type="Texture" id=11]
+[ext_resource path="res://gfx/guns/FNScar.png" type="Texture" id=12]
+[ext_resource path="res://sfx/shotgun.wav" type="AudioStream" id=13]
+[ext_resource path="res://sfx/revolver.wav" type="AudioStream" id=14]
+[ext_resource path="res://sfx/rifle.wav" type="AudioStream" id=15]
+[ext_resource path="res://sfx/assault_rifle.wav" type="AudioStream" id=16]
 
 [sub_resource type="CircleShape2D" id=1]
 radius = 8.0
@@ -40,6 +51,8 @@ z_index = -5
 texture = ExtResource( 2 )
 
 [node name="Items" type="Node2D" parent="."]
+script = ExtResource( 5 )
+DefaultItemPath = NodePath("Creative Building")
 
 [node name="Creative Building" type="Node2D" parent="Items"]
 visible = false
@@ -48,3 +61,89 @@ script = ExtResource( 4 )
 [node name="Icon" type="Sprite" parent="Items/Creative Building"]
 visible = false
 texture = ExtResource( 6 )
+
+[node name="Revolver" type="Sprite" parent="Items"]
+visible = false
+texture = ExtResource( 7 )
+offset = Vector2( 8, 0 )
+script = ExtResource( 8 )
+Spread = 3.0
+SpreadIncrease = 1.0
+RecoilMin = 3.0
+RecoilMax = 5.0
+RecoilRegen = 16.0
+
+[node name="Tip" type="Node2D" parent="Items/Revolver"]
+position = Vector2( 15, -2.5 )
+
+[node name="Fire" type="AudioStreamPlayer2D" parent="Items/Revolver"]
+stream = ExtResource( 14 )
+attenuation = 1.0
+
+[node name="Shotgun" type="Sprite" parent="Items"]
+visible = false
+texture = ExtResource( 9 )
+offset = Vector2( 8, 0 )
+script = ExtResource( 8 )
+EffectiveRange = 240
+MaximumRange = 360
+Spread = 14.0
+SpreadIncrease = 20.0
+SpreadRegen = 16.0
+RecoilMin = 6.0
+RecoilMax = 12.0
+RecoilRegen = 8.0
+
+[node name="Tip" type="Node2D" parent="Items/Shotgun"]
+position = Vector2( 22, -1.5 )
+
+[node name="Fire" type="AudioStreamPlayer2D" parent="Items/Shotgun"]
+stream = ExtResource( 13 )
+attenuation = 1.0
+
+[node name="Rifle" type="Sprite" parent="Items"]
+visible = false
+texture = ExtResource( 11 )
+offset = Vector2( 8, 0 )
+script = ExtResource( 8 )
+EffectiveRange = 480
+MaximumRange = 920
+SpreadIncrease = 2.0
+SpreadRegen = 2.0
+RecoilMin = 8.0
+RecoilMax = 8.0
+RecoilRegen = 8.0
+
+[node name="Tip" type="Node2D" parent="Items/Rifle"]
+position = Vector2( 24, -1.5 )
+
+[node name="Fire" type="AudioStreamPlayer2D" parent="Items/Rifle"]
+stream = ExtResource( 15 )
+attenuation = 1.0
+
+[node name="Assault Rifle" type="Sprite" parent="Items"]
+visible = false
+texture = ExtResource( 12 )
+offset = Vector2( 8, 0 )
+script = ExtResource( 8 )
+Spread = 1.0
+SpreadIncrease = 1.2
+SpreadRegen = 5.0
+RecoilMin = 1.0
+RecoilMax = 2.5
+
+[node name="Tip" type="Node2D" parent="Items/Assault Rifle"]
+position = Vector2( 22, -1.5 )
+
+[node name="Fire" type="AudioStreamPlayer2D" parent="Items/Assault Rifle"]
+stream = ExtResource( 16 )
+attenuation = 1.0
+
+[node name="Super Soaker" type="Sprite" parent="Items"]
+visible = false
+texture = ExtResource( 10 )
+offset = Vector2( 8, 0 )
+script = ExtResource( 8 )
+
+[node name="Tip" type="Node2D" parent="Items/Super Soaker"]
+position = Vector2( 17, 0.5 )

sfx/assault_rifle.wav.import

@@ -0,0 +1,21 @@
+[remap]
+
+importer="wav"
+type="AudioStreamSample"
+path="res://.import/assault_rifle.wav-be55643f0ef4eee454a1d69851e40bdb.sample"
+
+[deps]
+
+source_file="res://sfx/assault_rifle.wav"
+dest_files=[ "res://.import/assault_rifle.wav-be55643f0ef4eee454a1d69851e40bdb.sample" ]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop=false
+compress/mode=0

sfx/revolver.wav.import

@@ -0,0 +1,21 @@
+[remap]
+
+importer="wav"
+type="AudioStreamSample"
+path="res://.import/revolver.wav-a193edf66acf3d5ba572c83152b952b7.sample"
+
+[deps]
+
+source_file="res://sfx/revolver.wav"
+dest_files=[ "res://.import/revolver.wav-a193edf66acf3d5ba572c83152b952b7.sample" ]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop=false
+compress/mode=0

sfx/rifle.wav.import

@@ -0,0 +1,21 @@
+[remap]
+
+importer="wav"
+type="AudioStreamSample"
+path="res://.import/rifle.wav-4d8a68001c8b651b3f0f41b64fa095a8.sample"
+
+[deps]
+
+source_file="res://sfx/rifle.wav"
+dest_files=[ "res://.import/rifle.wav-4d8a68001c8b651b3f0f41b64fa095a8.sample" ]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop=false
+compress/mode=0

sfx/shotgun.wav.import

@@ -0,0 +1,21 @@
+[remap]
+
+importer="wav"
+type="AudioStreamSample"
+path="res://.import/shotgun.wav-29870054b4a67834b920542f9f1e5152.sample"
+
+[deps]
+
+source_file="res://sfx/shotgun.wav"
+dest_files=[ "res://.import/shotgun.wav-29870054b4a67834b920542f9f1e5152.sample" ]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop=false
+compress/mode=0

src/Items/CreativeBuilding.cs

@@ -35,7 +35,7 @@ public class CreativeBuilding : Node2D
 
     public override void _UnhandledInput(InputEvent ev)
     {
-        if (!(Player is LocalPlayer) || !Visible) return;
+        if (!Visible || !(Player is LocalPlayer)) return;
 
         if (ev.IsActionPressed("interact_place")) {
             GetTree().SetInputAsHandled();

src/Items/Items.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using Godot;
+
+// TODO: Add ways to add/move/remove items, including event when changed.
+public interface IItems : IReadOnlyCollection<Node2D>
+{
+    Node2D this[int index] { get; }
+    Node2D Current { get; set; }
+}
+
+public class Items : Node2D, IItems
+{
+    [Export] public NodePath DefaultItemPath { get; set; }
+
+    private Node2D _current;
+    public int Count => GetChildCount();
+    public Node2D this[int index] => GetChild<Node2D>(index);
+    public Node2D Current { get => _current; set => SetCurrent(value, true); }
+
+    public override void _Ready()
+    {
+        foreach (var item in this) SetActive(item, false);
+        if (DefaultItemPath != null) SetCurrent(GetNode<Node2D>(DefaultItemPath), false);
+    }
+
+    private void SetCurrent(Node2D node, bool sendRpc)
+    {
+        if (node == _current) return;
+        if ((node != null) && (node.GetParent() != this)) throw new ArgumentException();
+
+        SetActive(_current, false);
+        SetActive(node, true);
+        _current = node;
+
+        if (sendRpc) {
+            if (this.GetGame() is Server) Rpc(nameof(DoSetCurrent), _current?.Name);
+            else RpcId(1, nameof(DoSetCurrent), _current?.Name);
+        }
+    }
+    [Remote]
+    private void DoSetCurrent(string name)
+    {
+        var node = (name != null) ? GetNode<Node2D>(name) : null;
+        SetCurrent(node, this.GetGame() is Server);
+    }
+
+    public IEnumerator<Node2D> GetEnumerator()
+        => GetChildren().Cast<Node2D>().GetEnumerator();
+    IEnumerator IEnumerable.GetEnumerator()
+        => GetEnumerator();
+
+    private static void SetActive(Node2D node, bool value) {
+        if (node == null) return;
+        node.SetProcessInput(value);
+        node.SetProcessUnhandledInput(value);
+        node.Visible = value;
+    }
+}

src/Items/Weapon.cs

@@ -0,0 +1,122 @@
+using Godot;
+
+public class Weapon : Sprite
+{
+    [Export] public int EffectiveRange { get; set; } = 320;
+    [Export] public int MaximumRange { get; set; } = 640;
+
+    [Export] public float Spread { get; set; } = 0.0F;
+    [Export] public float SpreadIncrease { get; set; } = 0.0F;
+    [Export] public float SpreadRegen { get; set; } = 10.0F;
+
+    [Export] public float RecoilMin { get; set; } = 0.0F;
+    [Export] public float RecoilMax { get; set; } = 0.0F;
+    [Export] public float RecoilRegen { get; set; } = 10.0F;
+
+    // TODO: Make the Regen multiplicative instead of substractive?
+
+
+    public Cursor Cursor { get; private set; }
+    public Player Player { get; private set; }
+
+    private float _currentSpreadInc = 0.0F;
+    private float _currentRecoil = 0.0F;
+
+    public float AimDirection { get; private set; }
+
+
+    public override void _Ready()
+    {
+        Cursor = this.GetClient()?.Cursor;
+        Player = GetParent().GetParent<Player>();
+    }
+
+    public override void _UnhandledInput(InputEvent ev)
+    {
+        if (!(Player is LocalPlayer)) return;
+
+        // TODO: Is not "place", is shoot!
+        if (ev.IsActionPressed("interact_place")) {
+            GetNodeOrNull<AudioStreamPlayer2D>("Fire")?.Play();
+            // TODO: Spawn bullet or something.
+            // TODO: Tell server (and other clients) we shot.
+            _currentSpreadInc += Mathf.Deg2Rad(SpreadIncrease);
+            _currentRecoil    += Mathf.Deg2Rad((float)GD.RandRange(RecoilMin, RecoilMax));
+        }
+    }
+
+    public override void _Process(float delta)
+    {
+        // FIXME: Need to run _Process after switching to a weapon.
+
+        _currentSpreadInc = Mathf.Max(0, _currentSpreadInc - Mathf.Deg2Rad(SpreadRegen) * delta);
+        _currentRecoil    = Mathf.Max(0, _currentRecoil    - Mathf.Deg2Rad(RecoilRegen) * delta);
+
+        if (Visible && (Player is LocalPlayer)) {
+            AimDirection = Cursor.Position.AngleToPoint(Player.Position);
+            RpcId(1, nameof(SendAimAngle), AimDirection);
+            Update();
+        }
+
+        var angle = Mathf.PosMod(AimDirection + Mathf.Pi, Mathf.Tau) - Mathf.Pi;
+            angle = Mathf.Abs(Mathf.Rad2Deg(angle));
+        if (Scale.y > 0) { if (angle > 100.0F) Scale = new Vector2(1, -1); }
+        else               if (angle <  80.0F) Scale = new Vector2(1,  1);
+        Rotation = AimDirection - _currentRecoil * ((Scale.y > 0) ? 1 : -1);
+    }
+
+    [Remote]
+    private void SendAimAngle(float value)
+    {
+        if (this.GetGame() is Server) {
+            if (Player.NetworkID != GetTree().GetRpcSenderId()) return;
+            // TODO: Verify input.
+            // if ((value < 0) || (value > Mathf.Tau)) return;
+            Rpc(nameof(SendAimAngle), value);
+        } else if (!(Player is LocalPlayer))
+            AimDirection = value;
+    }
+
+    public override void _Draw()
+    {
+        if (!(Player is LocalPlayer)) return;
+
+        var tip   = GetNode<Node2D>("Tip").Position + new Vector2(4, 0);
+        var angle = Mathf.Sin((Mathf.Deg2Rad(Spread) + _currentSpreadInc) / 2);
+        var color = Colors.Black;
+
+        var points = new Vector2[8];
+        var colors = new Color[8];
+        colors[0] = colors[7] = new Color(color, 0.0F);
+            points[0] = points[7] = tip;
+        colors[1] = colors[6] = new Color(color, 0.15F);
+            points[1] = tip + new Vector2(1,  angle) * 64;
+            points[6] = tip + new Vector2(1, -angle) * 64;
+        colors[2] = colors[5] = new Color(color, 0.15F);
+            points[2] = tip + new Vector2(1,  angle) * EffectiveRange;
+            points[5] = tip + new Vector2(1, -angle) * EffectiveRange;
+        colors[3] = colors[4] = new Color(color, 0.0F);
+            points[3] = tip + new Vector2(1,  angle) * MaximumRange;
+            points[4] = tip + new Vector2(1, -angle) * MaximumRange;
+
+        var st = new SurfaceTool();
+        st.Begin(Mesh.PrimitiveType.TriangleStrip);
+            st.AddColor(colors[0]);
+                st.AddVertex(To3(points[0]));
+            st.AddColor(colors[1]);
+                st.AddVertex(To3(points[1]));
+                st.AddVertex(To3(points[6]));
+            st.AddColor(colors[2]);
+                st.AddVertex(To3(points[2]));
+                st.AddVertex(To3(points[5]));
+            st.AddColor(colors[3]);
+                st.AddVertex(To3(points[3]));
+                st.AddVertex(To3(points[4]));
+        st.Index();
+
+        DrawMesh(st.Commit(), null);
+        DrawPolylineColors(points, colors, antialiased: true);
+    }
+    private static Vector3 To3(Vector2 vec)
+        => new Vector3(vec.x, vec.y, 0);
+}

src/RadialMenu.cs

@@ -12,8 +12,7 @@ public class RadialMenu : Node2D
     public Label ActiveName { get; private set; }
 
     private float _startAngle;
-    public Node2D Selected { get; private set; } = null;
-    public int? SelectedIndex => (Selected != null) ? Selected.GetIndex() : (int?)null;
+    private Node2D _selected;
 
     public override void _Ready()
     {
@@ -23,36 +22,20 @@ public class RadialMenu : Node2D
         ActiveName = GetNode<Label>("ActiveName");
     }
 
-    public Node GetItems()
-        => this.GetClient().LocalPlayer?.GetNode<Node2D>("Items");
-
-    public void Select(Node2D node)
-    {
-        if (node == Selected) return;
-        if ((node != null) && (node.GetParent() != GetItems())) throw new ArgumentException();
-
-        ActiveName.Text = node?.Name ?? "";
-        if (Visible)
-            Update();
-        else {
-            SetActive(Selected, false);
-            SetActive(node, true);
-        }
-        Selected = node;
-    }
-    private static void SetActive(Node2D node, bool value) {
-        if (node == null) return;
-        node.SetProcessInput(value);
-        node.SetProcessUnhandledInput(value);
-        node.Visible = value;
-    }
+    public IItems GetItems()
+        => this.GetClient().LocalPlayer?.GetNode<IItems>("Items");
 
     public override void _UnhandledInput(InputEvent ev)
     {
         if (ev.IsActionPressed("interact_select")) {
             Position = this.GetClient().Cursor.ScreenPosition.Round();
             Visible = true;
-            SetActive(Selected, false);
+
+            var items = GetItems();
+            _selected = items.Current;
+            items.Current = null;
+
+            ActiveName.Text = _selected?.Name ?? "";
             Update();
         }
         // TODO: Add scrollwheel support.
@@ -61,54 +44,62 @@ public class RadialMenu : Node2D
     public override void _Process(float delta)
     {
         if (!Visible) return;
+        var items = GetItems();
 
         var cursorPos = ToLocal(this.GetClient().Cursor.ScreenPosition);
         var angle = cursorPos.Angle() - _startAngle;
         var index = (int)((angle / Mathf.Tau + 1) % 1 * MinElements);
-        var items = GetItems();
-        if ((cursorPos.Length() > InnerRadius) && (index < items.GetChildCount()))
-            Select(items.GetChild<Node2D>(index));
+        if ((cursorPos.Length() > InnerRadius) && (index < items.Count) && (items[index] != _selected)) {
+            _selected = items[index];
+            ActiveName.Text = _selected?.Name ?? "";
+            Update();
+        }
 
         if (!Input.IsActionPressed("interact_select")) {
             Visible = false;
-            SetActive(Selected, true);
+            items.Current = _selected;
             Update();
         }
     }
 
     public override void _Draw()
     {
+        var items = GetItems();
+
         var vertices = new Vector2[5];
         var colors   = new Color[5];
 
-        for (var i = 0; i < MinElements; i++) {
-            var angle1 = _startAngle + Mathf.Tau * ( i      / (float)MinElements);
-            var angle3 = _startAngle + Mathf.Tau * ((i + 1) / (float)MinElements);
+        var numElements = Math.Max(MinElements, items.Count);
+        for (var i = 0; i < numElements; i++) {
+            var angle1 = _startAngle + Mathf.Tau * ( i      / (float)numElements);
+            var angle3 = _startAngle + Mathf.Tau * ((i + 1) / (float)numElements);
             var angle2 = (angle1 + angle3) / 2;
 
-            var sep1 = new Vector2(Mathf.Cos(angle1 + Mathf.Tau / 4), Mathf.Sin(angle1 + Mathf.Tau / 4)) * Separation;
-            var sep2 = new Vector2(Mathf.Cos(angle3 - Mathf.Tau / 4), Mathf.Sin(angle3 - Mathf.Tau / 4)) * Separation;
+            var sep1 = Mathf.Polar2Cartesian(Separation, angle1 + Mathf.Tau / 4);
+            var sep2 = Mathf.Polar2Cartesian(Separation, angle3 - Mathf.Tau / 4);
 
-            var isSelected  = i == SelectedIndex;
+            var isSelected  = (i < items.Count) && (_selected == items[i]);
             var innerRadius = InnerRadius + (isSelected ? 5 : 0);
             var outerRadius = OuterRadius + (isSelected ? 5 : 0);
 
-            vertices[0] = new Vector2(Mathf.Cos(angle1), Mathf.Sin(angle1)) * innerRadius + sep1;
-            vertices[1] = new Vector2(Mathf.Cos(angle1), Mathf.Sin(angle1)) * outerRadius + sep1;
-            vertices[2] = new Vector2(Mathf.Cos(angle2), Mathf.Sin(angle2)) * (outerRadius + Separation);
-            vertices[3] = new Vector2(Mathf.Cos(angle3), Mathf.Sin(angle3)) * outerRadius + sep2;
-            vertices[4] = new Vector2(Mathf.Cos(angle3), Mathf.Sin(angle3)) * innerRadius + sep2;
+            vertices[0] = Mathf.Polar2Cartesian(innerRadius             , angle1) + sep1;
+            vertices[1] = Mathf.Polar2Cartesian(outerRadius             , angle1) + sep1;
+            vertices[2] = Mathf.Polar2Cartesian(outerRadius + Separation, angle2);
+            vertices[3] = Mathf.Polar2Cartesian(outerRadius             , angle3) + sep2;
+            vertices[4] = Mathf.Polar2Cartesian(innerRadius             , angle3) + sep2;
 
             var color = new Color(0.1F, 0.1F, 0.1F, isSelected ? 0.7F : 0.4F);
             for (var j = 0; j < colors.Length; j++) colors[j] = color;
 
             DrawPolygon(vertices, colors, antialiased: true);
 
-            var items = GetItems();
-            if ((i < items.GetChildCount()) && (items.GetChild(i)?.GetNodeOrNull("Icon") is Sprite sprite)) {
-                var pos = new Vector2(Mathf.Cos(angle2), Mathf.Sin(angle2)) * (innerRadius + outerRadius) / 2;
-                if (sprite.Centered) pos -= sprite.Texture.GetSize() / 2;
-                DrawTexture(sprite.Texture, sprite.Offset + pos, sprite.Modulate);
+            if (i < items.Count) {
+                var sprite = (items[i].GetNodeOrNull("Icon") as Sprite) ?? (items[i] as Sprite);
+                if (sprite != null) {
+                    var pos = Mathf.Polar2Cartesian((innerRadius + outerRadius) / 2, angle2);
+                    if (sprite.Centered) pos -= sprite.Texture.GetSize() / 2;
+                    DrawTexture(sprite.Texture, pos, sprite.Modulate);
+                }
             }
         }
     }

src/Utility/BlockPos.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using Godot;
 
 public readonly struct BlockPos : IEquatable<BlockPos>
@@ -48,52 +47,3 @@ public readonly struct BlockPos : IEquatable<BlockPos>
     public static BlockPos operator /(BlockPos left, int right)
         => new BlockPos(left.X / right, left.Y / right);
 }
-
-public enum Facing
-{
-    Left,
-    Right,
-    Up,
-    Down,
-}
-
-public static class Facings
-{
-    public static readonly IReadOnlyCollection<Facing> All = new []{ Facing.Left, Facing.Right, Facing.Up, Facing.Down };
-    public static readonly IReadOnlyCollection<Facing> Horizontal = new []{ Facing.Left, Facing.Right };
-    public static readonly IReadOnlyCollection<Facing> Vertical   = new []{ Facing.Up, Facing.Down };
-
-    public static BlockPos ToBlockPos(this Facing facing)
-    {
-        switch (facing) {
-            case Facing.Left:  return BlockPos.Left;
-            case Facing.Right: return BlockPos.Right;
-            case Facing.Up:    return BlockPos.Up;
-            case Facing.Down:  return BlockPos.Down;
-            default: throw new ArgumentException();
-        }
-    }
-    public static Vector2 ToVector(this Facing facing)
-        => facing.ToBlockPos().ToVector();
-
-    public static Facing FromAngle(float radians)
-    {
-        radians = ((radians % (Mathf.Pi*2)) + Mathf.Pi*2) % (Mathf.Pi*2);
-        if      (radians < Mathf.Pi / 4)     return Facing.Right;
-        else if (radians < Mathf.Pi / 4 * 3) return Facing.Down;
-        else if (radians < Mathf.Pi / 4 * 5) return Facing.Left;
-        else if (radians < Mathf.Pi / 4 * 7) return Facing.Up;
-        else                                 return Facing.Right;
-    }
-
-    public static float ToAngle(this Facing facing)
-    {
-        switch (facing) {
-            case Facing.Right: return 0;
-            case Facing.Down:  return Mathf.Pi / 2;
-            case Facing.Left:  return Mathf.Pi;
-            case Facing.Up:    return Mathf.Pi / 2 * 3;
-            default: throw new ArgumentException();
-        }
-    }
-}

src/Utility/Facing.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using Godot;
+
+public enum Facing
+{
+    Left,
+    Right,
+    Up,
+    Down,
+}
+
+public static class Facings
+{
+    public static readonly IReadOnlyCollection<Facing> All = new []{ Facing.Left, Facing.Right, Facing.Up, Facing.Down };
+    public static readonly IReadOnlyCollection<Facing> Horizontal = new []{ Facing.Left, Facing.Right };
+    public static readonly IReadOnlyCollection<Facing> Vertical   = new []{ Facing.Up, Facing.Down };
+
+    public static BlockPos ToBlockPos(this Facing facing)
+    {
+        switch (facing) {
+            case Facing.Left:  return BlockPos.Left;
+            case Facing.Right: return BlockPos.Right;
+            case Facing.Up:    return BlockPos.Up;
+            case Facing.Down:  return BlockPos.Down;
+            default: throw new ArgumentException();
+        }
+    }
+    public static Vector2 ToVector(this Facing facing)
+        => facing.ToBlockPos().ToVector();
+
+    public static Facing FromAngle(float radians)
+    {
+        radians = Mathf.PosMod(radians, Mathf.Tau);
+        if      (radians < Mathf.Pi / 4)     return Facing.Right;
+        else if (radians < Mathf.Pi / 4 * 3) return Facing.Down;
+        else if (radians < Mathf.Pi / 4 * 5) return Facing.Left;
+        else if (radians < Mathf.Pi / 4 * 7) return Facing.Up;
+        else                                 return Facing.Right;
+    }
+
+    public static float ToAngle(this Facing facing)
+    {
+        switch (facing) {
+            case Facing.Right: return 0;
+            case Facing.Down:  return Mathf.Pi / 2;
+            case Facing.Left:  return Mathf.Pi;
+            case Facing.Up:    return Mathf.Pi / 2 * 3;
+            default: throw new ArgumentException();
+        }
+    }
+}