From ee7fb990c3184ae1e5bfde3e917e72b8619679e9 Mon Sep 17 00:00:00 2001
From: ccgauche <gaucheron.laurent@gmail.com>
Date: Sat, 12 Dec 2020 00:37:22 +0100
Subject: [PATCH] Added plugin system

Added a plugin system based on wasmer-runtime
 - Support Action (Print handled)
 - Support Events (PluginLoadEvent handled)
---
 Cargo.lock                              |  504 ++++++--
 Cargo.toml                              |    1 +
 common/Cargo.toml                       |    5 +
 common/common-api/Cargo.toml            |   10 +
 common/common-api/src/lib.rs            |   57 +
 common/src/lib.rs                       |    3 +
 common/src/plugin/errors.rs             |   21 +
 common/src/{plugin.rs => plugin/mod.rs} |   39 +-
 common/src/plugin/module.rs             |  150 +++
 common/sys/src/state.rs                 |   12 +-
 plugin-api/Cargo.toml                   |    7 +-
 plugin-api/hello/Cargo.lock             | 1566 +----------------------
 plugin-api/hello/src/lib.rs             |   21 +-
 plugin-api/plugin_proc/Cargo.toml       |   15 +
 plugin-api/plugin_proc/src/lib.rs       |   27 +
 plugin-api/src/api/mod.rs               |    7 -
 plugin-api/src/lib.rs                   |   58 +-
 plugin-api/src/raw_api/mod.rs           |    3 -
 plugin-api/src/raw_hooks/mod.rs         |    4 -
 19 files changed, 817 insertions(+), 1693 deletions(-)
 create mode 100644 common/common-api/Cargo.toml
 create mode 100644 common/common-api/src/lib.rs
 create mode 100644 common/src/plugin/errors.rs
 rename common/src/{plugin.rs => plugin/mod.rs} (74%)
 create mode 100644 common/src/plugin/module.rs
 create mode 100644 plugin-api/plugin_proc/Cargo.toml
 create mode 100644 plugin-api/plugin_proc/src/lib.rs
 delete mode 100644 plugin-api/src/api/mod.rs
 delete mode 100644 plugin-api/src/raw_api/mod.rs
 delete mode 100644 plugin-api/src/raw_hooks/mod.rs

diff --git a/Cargo.lock b/Cargo.lock
index 4c33e79f3a..f83a4e1759 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -22,7 +22,7 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1b6a2d3371669ab3ca9797670853d61402b03d0b4b9ebf33d677dfa720203072"
 dependencies = [
- "gimli",
+ "gimli 0.22.0",
 ]
 
 [[package]]
@@ -172,7 +172,7 @@ checksum = "0609c78bd572f4edc74310dfb63a01f5609d53fa8b4dd7c4d98aef3b3e8d72d1"
 dependencies = [
  "proc-macro-hack",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -182,9 +182,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a1ae06b5f52588295bfd019b837b6fb1a6914d58ece30b0c43ae439ef08e562"
 dependencies = [
  "proc-macro-error",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -290,7 +290,7 @@ source = "git+https://gitlab.com/veloren/auth.git?rev=b943c85e4a38f5ec60cd18c34c
 dependencies = [
  "auth-common",
  "fxhash",
- "hex",
+ "hex 0.3.2",
  "rust-argon2",
  "serde_json",
  "ureq 1.4.1",
@@ -373,7 +373,7 @@ dependencies = [
  "lazy_static",
  "lazycell",
  "peeking_take_while",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "regex",
  "rustc-hash",
@@ -407,6 +407,21 @@ dependencies = [
  "constant_time_eq",
 ]
 
+[[package]]
+name = "blake3"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9ff35b701f3914bdb8fad3368d822c766ef2858b2583198e41639b936f09d3f"
+dependencies = [
+ "arrayref",
+ "arrayvec 0.5.1",
+ "cc",
+ "cfg-if 0.1.10",
+ "constant_time_eq",
+ "crypto-mac",
+ "digest 0.9.0",
+]
+
 [[package]]
 name = "block"
 version = "0.1.6"
@@ -712,6 +727,13 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "common-api"
+version = "0.1.0"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "conrod_core"
 version = "0.63.0"
@@ -785,9 +807,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d709e38f0f6100c0c8c0b3aefb0aa1f83af865d7b6b267e8402820513a0c0d8"
 dependencies = [
  "darling",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -977,6 +999,66 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "cranelift-bforest"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45a9c21f8042b9857bda93f6c1910b9f9f24100187a3d3d52f214a34e3dc5818"
+dependencies = [
+ "cranelift-entity",
+]
+
+[[package]]
+name = "cranelift-codegen"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7853f77a6e4a33c67a69c40f5e1bb982bd2dc5c4a22e17e67b65bbccf9b33b2e"
+dependencies = [
+ "byteorder",
+ "cranelift-bforest",
+ "cranelift-codegen-meta",
+ "cranelift-codegen-shared",
+ "cranelift-entity",
+ "gimli 0.20.0",
+ "log",
+ "smallvec 1.4.2",
+ "target-lexicon",
+ "thiserror",
+]
+
+[[package]]
+name = "cranelift-codegen-meta"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "084cd6d5fb0d1da28acd72c199471bfb09acc703ec8f3bf07b1699584272a3b9"
+dependencies = [
+ "cranelift-codegen-shared",
+ "cranelift-entity",
+]
+
+[[package]]
+name = "cranelift-codegen-shared"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "701b599783305a58c25027a4d73f2d6b599b2d8ef3f26677275f480b4d51e05d"
+
+[[package]]
+name = "cranelift-entity"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b88e792b28e1ebbc0187b72ba5ba880dad083abe9231a99d19604d10c9e73f38"
+
+[[package]]
+name = "cranelift-native"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32daf082da21c0c05d93394ff4842c2ab7c4991b1f3186a1d952f8ac660edd0b"
+dependencies = [
+ "cranelift-codegen",
+ "raw-cpuid",
+ "target-lexicon",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.2.0"
@@ -1208,6 +1290,16 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "crypto-mac"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b584a330336237c1eecd3e94266efb216c56ed91225d634cb2991c5f3fd1aeab"
+dependencies = [
+ "generic-array 0.14.4",
+ "subtle",
+]
+
 [[package]]
 name = "csv"
 version = "1.1.3"
@@ -1237,7 +1329,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fbaabec2c953050352311293be5c6aba8e141ba19d6811862b232d6fd020484"
 dependencies = [
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1267,10 +1359,10 @@ checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
 dependencies = [
  "fnv",
  "ident_case",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "strsim 0.9.3",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1281,7 +1373,7 @@ checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
 dependencies = [
  "darling_core",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1317,9 +1409,9 @@ version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cb582b60359da160a9477ee80f15c8d784c477e69c217ef2cdd4169c24ea380f"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1345,9 +1437,9 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "45f5098f628d02a7a0f68ddba586fb61e80edec3bdc1be3b921f4ceec60858d3"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1360,6 +1452,24 @@ dependencies = [
  "migrations_macros",
 ]
 
+[[package]]
+name = "digest"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
+dependencies = [
+ "generic-array 0.12.3",
+]
+
+[[package]]
+name = "digest"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+dependencies = [
+ "generic-array 0.14.4",
+]
+
 [[package]]
 name = "directories-next"
 version = "2.0.0"
@@ -1483,9 +1593,30 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e94aa31f7c0dc764f57896dc615ddd76fc13b0d5dca7eb6cc5e018a5a09ec06"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
+]
+
+[[package]]
+name = "errno"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa68f2fb9cae9d37c9b2b3584aba698a2e97f72d7aef7b9f7aa71d8b54ce46fe"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14ca354e36190500e1e1fb267c647932382b54053c50b14970856c0b00a35067"
+dependencies = [
+ "gcc",
+ "libc",
 ]
 
 [[package]]
@@ -1540,9 +1671,9 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccb5acb1045ebbfa222e2c50679e392a71dd77030b78fb0189f2d9c5974400f9"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1714,9 +1845,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
 dependencies = [
  "proc-macro-hack",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -1777,6 +1908,31 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "gcc"
+version = "0.3.55"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
+
+[[package]]
+name = "generic-array"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c68f0274ae0e023facc3c97b2e00f076be70e254bc851d972503b328db79b2ec"
+dependencies = [
+ "typenum",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+dependencies = [
+ "typenum",
+ "version_check 0.9.2",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.15"
@@ -1864,6 +2020,16 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81dd6190aad0f05ddbbf3245c54ed14ca4aa6dd32f22312b70d8f168c3e3e633"
+dependencies = [
+ "byteorder",
+ "indexmap",
+]
+
 [[package]]
 name = "gimli"
 version = "0.22.0"
@@ -2105,6 +2271,12 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 
+[[package]]
+name = "hex"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
+
 [[package]]
 name = "hibitset"
 version = "0.6.3"
@@ -2324,6 +2496,7 @@ checksum = "55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2"
 dependencies = [
  "autocfg 1.0.1",
  "hashbrown 0.9.1",
+ "serde",
 ]
 
 [[package]]
@@ -2753,9 +2926,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9753f12909fd8d923f75ae5c3258cae1ed3c8ec052e1b38c93c21a6d157f789c"
 dependencies = [
  "migrations_internals",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -2930,9 +3103,9 @@ checksum = "05d1c6307dc424d0f65b9b06e94f88248e6305726b14729fd67a5e47b2dc481d"
 dependencies = [
  "darling",
  "proc-macro-crate",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -3106,9 +3279,9 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f09b9841adb6b5e1f89ef7087ea636e0fd94b2851f887c1e3eb5d5f8228fab3"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -3200,9 +3373,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ffa5a33ddddfee04c0283a7653987d634e880347e96b5b2ed64de07efb59db9d"
 dependencies = [
  "proc-macro-crate",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -3390,6 +3563,16 @@ dependencies = [
  "libm",
 ]
 
+[[package]]
+name = "page_size"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eebde548fbbf1ea81a99b128872779c437752fb99f217c45245e1a61dcd9edcd"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.9.0"
@@ -3508,9 +3691,9 @@ version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24c6d293bdd3ca5a1697997854c6cf7855e43fb6a0ba1c47af57a5bcafd158ae"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -3570,6 +3753,15 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "plugin_proc"
+version = "0.1.0"
+dependencies = [
+ "proc-macro2 1.0.24",
+ "quote 1.0.7",
+ "syn 1.0.54",
+]
+
 [[package]]
 name = "png"
 version = "0.16.7"
@@ -3612,9 +3804,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
 dependencies = [
  "proc-macro-error-attr",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
  "version_check 0.9.2",
 ]
 
@@ -3624,7 +3816,7 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "version_check 0.9.2",
 ]
@@ -3652,9 +3844,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.23"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51ef7cd2518ead700af67bf9d1a658d90b6037d77110fd9c0445429d0ba1c6c9"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
 dependencies = [
  "unicode-xid 0.2.1",
 ]
@@ -3697,7 +3889,7 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
 ]
 
 [[package]]
@@ -3876,6 +4068,17 @@ dependencies = [
  "rand_core 0.3.1",
 ]
 
+[[package]]
+name = "raw-cpuid"
+version = "7.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4a349ca83373cfa5d6dbb66fd76e58b2cca08da71a5f6400de0a0a6a9bceeaf"
+dependencies = [
+ "bitflags",
+ "cc",
+ "rustc_version",
+]
+
 [[package]]
 name = "raw-window-handle"
 version = "0.3.3"
@@ -3973,7 +4176,7 @@ dependencies = [
  "cc",
  "libc",
  "once_cell",
- "spin 0.5.2",
+ "spin",
  "untrusted",
  "web-sys",
  "winapi 0.3.9",
@@ -4210,13 +4413,32 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.116"
+version = "1.0.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5"
+checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
 dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-bench"
+version = "0.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d733da87e79faaac25616e33d26299a41143fd4cd42746cbb0e91d8feea243fd"
+dependencies = [
+ "byteorder",
+ "serde",
+]
+
+[[package]]
+name = "serde_bytes"
+version = "0.11.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16ae07dd2f88a366f15bd0632ba725227018c69a1c8550a927324f8eb8368bb9"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_cbor"
 version = "0.11.1"
@@ -4229,13 +4451,13 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.116"
+version = "1.0.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f630a6370fd8e457873b4bd2ffdae75408bc291ba72be773772a4c2a065d9ae8"
+checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4267,9 +4489,9 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dc6b7951b17b051f3210b063f12cc17320e2fe30ae05b0fe2a3abb068551c76"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4333,9 +4555,9 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1f37080f2751fbf091dbdebaa95bd6cf9dbf74ad1d50396b1908518a1747fdf"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4495,12 +4717,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
-[[package]]
-name = "spin"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "652ac3743312871a5fb703f0337e68ffa3cdc28c863efad0b8dc858fa10c991b"
-
 [[package]]
 name = "spin_sleep"
 version = "1.0.0"
@@ -4554,11 +4770,11 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "serde",
  "serde_derive",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4568,13 +4784,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
 dependencies = [
  "base-x",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "serde",
  "serde_derive",
  "serde_json",
  "sha1",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4629,11 +4845,17 @@ checksum = "c92e775028122a4b3dd55d58f14fc5120289c69bee99df1d117ae30f84b225c9"
 dependencies = [
  "heck",
  "proc-macro-error",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
+[[package]]
+name = "subtle"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "343f3f510c2915908f155e94f17220b19ccfacf2a64a2a5d8004f2c3e311e7fd"
+
 [[package]]
 name = "sum_type"
 version = "0.2.0"
@@ -4659,11 +4881,11 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.42"
+version = "1.0.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c51d92969d209b54a98397e1b91c8ae82d8c87a7bb87df0b29aa2ad81454228"
+checksum = "9a2af957a63d6bd42255c359c93d9bfdb97076bd3b820897ce55ffbfbf107f44"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "unicode-xid 0.2.1",
 ]
@@ -4686,6 +4908,12 @@ dependencies = [
  "xattr",
 ]
 
+[[package]]
+name = "target-lexicon"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab0e7238dcc7b40a7be719a25365910f6807bd864f4cce6b2e6b873658e2b19d"
+
 [[package]]
 name = "termcolor"
 version = "1.1.2"
@@ -4719,9 +4947,9 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd80fc12f73063ac132ac92aceea36734f04a1d93c1240c6944e23a3b8841793"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -4964,9 +5192,9 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "80e0ccfc3378da0cce270c946b676a376943f5cd16aeba64568e7939806f4ada"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
 ]
 
 [[package]]
@@ -5110,6 +5338,12 @@ dependencies = [
  "nom 5.1.2",
 ]
 
+[[package]]
+name = "typenum"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.4"
@@ -5323,6 +5557,8 @@ version = "0.8.0"
 dependencies = [
  "arraygen",
  "authc",
+ "bincode",
+ "common-api",
  "criterion",
  "crossbeam",
  "csv",
@@ -5357,14 +5593,17 @@ dependencies = [
  "tracing",
  "tracy-client",
  "vek 0.12.0",
+ "wasmer-runtime",
 ]
 
 [[package]]
 name = "veloren-plugin-api"
 version = "0.1.0"
 dependencies = [
- "spin 0.7.0",
- "veloren-common",
+ "bincode",
+ "common-api",
+ "plugin_proc",
+ "serde",
 ]
 
 [[package]]
@@ -5654,9 +5893,9 @@ dependencies = [
  "bumpalo",
  "lazy_static",
  "log",
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
  "wasm-bindgen-shared",
 ]
 
@@ -5688,9 +5927,9 @@ version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
- "syn 1.0.42",
+ "syn 1.0.54",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -5701,6 +5940,119 @@ version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
 
+[[package]]
+name = "wasmer-clif-backend"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a2fae69b1c7429316cad6743f3d2ca83cf8957924c477c5a4eff036ec0097a9"
+dependencies = [
+ "byteorder",
+ "cranelift-codegen",
+ "cranelift-entity",
+ "cranelift-native",
+ "libc",
+ "nix 0.15.0",
+ "rayon",
+ "serde",
+ "serde-bench",
+ "serde_bytes",
+ "serde_derive",
+ "target-lexicon",
+ "wasmer-clif-fork-frontend",
+ "wasmer-clif-fork-wasm",
+ "wasmer-runtime-core",
+ "wasmer-win-exception-handler",
+ "wasmparser",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "wasmer-clif-fork-frontend"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c23f2824f354a00a77e4b040eef6e1d4c595a8a3e9013bad65199cc8dade9a5a"
+dependencies = [
+ "cranelift-codegen",
+ "log",
+ "smallvec 1.4.2",
+ "target-lexicon",
+]
+
+[[package]]
+name = "wasmer-clif-fork-wasm"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a35e21d3aebc51cc6ebc0e830cf8458a9891c3482fb3c65ad18d408102929ae5"
+dependencies = [
+ "cranelift-codegen",
+ "cranelift-entity",
+ "log",
+ "thiserror",
+ "wasmer-clif-fork-frontend",
+ "wasmparser",
+]
+
+[[package]]
+name = "wasmer-runtime"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92a9ae96b193c35c47fc829265198322cf980edc353a9de32bc87a1545d44f3"
+dependencies = [
+ "lazy_static",
+ "memmap",
+ "serde",
+ "serde_derive",
+ "wasmer-clif-backend",
+ "wasmer-runtime-core",
+]
+
+[[package]]
+name = "wasmer-runtime-core"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "740161245998752cf1a567e860fd6355df0336fedca6be1940ec7aaa59643220"
+dependencies = [
+ "bincode",
+ "blake3",
+ "cc",
+ "digest 0.8.1",
+ "errno",
+ "hex 0.4.2",
+ "indexmap",
+ "lazy_static",
+ "libc",
+ "nix 0.15.0",
+ "page_size",
+ "parking_lot 0.10.2",
+ "rustc_version",
+ "serde",
+ "serde-bench",
+ "serde_bytes",
+ "serde_derive",
+ "smallvec 1.4.2",
+ "target-lexicon",
+ "wasmparser",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "wasmer-win-exception-handler"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cd39f3b2bd7964b28ea6f944a7eaa445cfbc91c4f2695d188103f2689bb37d9"
+dependencies = [
+ "cc",
+ "libc",
+ "wasmer-runtime-core",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "wasmparser"
+version = "0.51.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aeb1956b19469d1c5e63e459d29e7b5aa0f558d9f16fcef09736f8a265e6c10a"
+
 [[package]]
 name = "wayland-client"
 version = "0.27.0"
@@ -5819,7 +6171,7 @@ version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "030f56009d932bd9400bb472764fea8109be1b0fc482d9cd75496c943ac30328"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "xml-rs",
 ]
@@ -5830,7 +6182,7 @@ version = "0.28.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1cc091af4b05a435312f7cefe3a26824d2017966a58362ca913f72c3d68e5e2"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2 1.0.24",
  "quote 1.0.7",
  "xml-rs",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 63832b4a96..ce8d132762 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ cargo-features = ["named-profiles","profile-overrides"]
 members = [
 	"common",
 	"common/sys",
+	"common/common-api",
 	"client",
 	"plugin-api",
 	"server",
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 8a2da17983..556b1271c0 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -63,6 +63,11 @@ structopt = { version = "0.3.13", optional = true }
 # Tracy
 tracy-client = { version = "0.9.0", optional = true }
 
+# Plugins
+wasmer-runtime = "0.17.1"
+bincode = "1.3.1"
+common-api = {path = "./common-api"}
+
 [dev-dependencies]
 #bench
 criterion = "0.3"
diff --git a/common/common-api/Cargo.toml b/common/common-api/Cargo.toml
new file mode 100644
index 0000000000..27baec7453
--- /dev/null
+++ b/common/common-api/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "common-api"
+version = "0.1.0"
+authors = ["ccgauche <gaucheron.laurent@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde = {version = "1.0.118", features = ["derive"]}
\ No newline at end of file
diff --git a/common/common-api/src/lib.rs b/common/common-api/src/lib.rs
new file mode 100644
index 0000000000..9218fb62f8
--- /dev/null
+++ b/common/common-api/src/lib.rs
@@ -0,0 +1,57 @@
+use serde::{Serialize, de::DeserializeOwned, Deserialize};
+
+
+#[derive(Deserialize,Serialize,Debug)]
+pub enum Action {
+    ServerClose,
+    Print(String),
+    PlayerSendMessage(usize,String),
+    KillEntity(usize)
+}
+
+pub trait Event: Serialize + DeserializeOwned{
+    type Response: Serialize + DeserializeOwned;
+}
+
+pub mod events {
+
+    use super::Event;
+    use serde::{Serialize,Deserialize};
+    #[derive(Serialize, Deserialize, Debug)]
+    pub struct PlayerJoinEvent {
+        pub player_name: String,
+        pub player_id: usize
+    }
+
+    impl Event for PlayerJoinEvent {
+        type Response = PlayerJoinResult;
+    }
+
+    #[derive(Serialize, Deserialize, Debug)]
+    pub enum PlayerJoinResult {
+        CloseConnection,
+        None
+    }
+
+    impl Default for PlayerJoinResult {
+        fn default() -> Self {
+            Self::None
+        }
+    }
+
+    #[derive(Serialize, Deserialize, Debug)]
+    pub struct PluginLoadEvent;
+
+    impl Event for PluginLoadEvent {
+        type Response = ();
+    }
+
+    // #[derive(Serialize, Deserialize, Debug)]
+    // pub struct EmptyResult;
+
+    // impl Default for PlayerJoinResult {
+    //     fn default() -> Self {
+    //         Self::None
+    //     }
+    // }
+}
\ No newline at end of file
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 2b410155f4..4de06ca912 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -17,6 +17,8 @@
     option_zip
 )]
 
+pub extern crate common_api;
+
 pub mod assets;
 pub mod astar;
 pub mod character;
@@ -55,6 +57,7 @@ pub mod util;
 pub mod vol;
 pub mod volumes;
 
+
 pub use combat::{Damage, DamageSource, GroupTarget, Knockback};
 pub use explosion::{Explosion, RadiusEffect};
 pub use loadout_builder::LoadoutBuilder;
diff --git a/common/src/plugin/errors.rs b/common/src/plugin/errors.rs
new file mode 100644
index 0000000000..ad6bfef789
--- /dev/null
+++ b/common/src/plugin/errors.rs
@@ -0,0 +1,21 @@
+use bincode::ErrorKind;
+use wasmer_runtime::error::{ResolveError, RuntimeError};
+
+#[derive(Debug)]
+pub enum PluginError {
+    Io(std::io::Error),
+    Toml(toml::de::Error),
+    NoConfig,
+    NoSuchModule,
+    PluginModuleError(PluginModuleError)
+}
+
+#[derive(Debug)]
+pub enum PluginModuleError {
+    FindFunction(String),
+    FunctionGet(ResolveError),
+    Compile(wasmer_runtime::error::CompileError),
+    Instantiate(wasmer_runtime::error::Error),
+    RunFunction(RuntimeError),
+    Encoding(Box<ErrorKind>),
+}
\ No newline at end of file
diff --git a/common/src/plugin.rs b/common/src/plugin/mod.rs
similarity index 74%
rename from common/src/plugin.rs
rename to common/src/plugin/mod.rs
index e90c15641b..193776a155 100644
--- a/common/src/plugin.rs
+++ b/common/src/plugin/mod.rs
@@ -1,20 +1,20 @@
+
+pub mod errors;
+pub mod module;
+
 use crate::assets::ASSETS_PATH;
 use serde::{Deserialize, Serialize};
 use std::{
     collections::HashMap,
     fs,
-    io::{self, Read},
+    io::Read,
     path::{Path, PathBuf},
 };
 use tracing::{error, info};
 
-#[derive(Debug)]
-pub enum PluginError {
-    Io(io::Error),
-    Toml(toml::de::Error),
-    NoConfig,
-    NoSuchModule,
-}
+use common_api::Event;
+
+use self::{ errors::PluginError, module::{PluginModule, PreparedEventQuery}};
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct PluginData {
@@ -23,11 +23,6 @@ pub struct PluginData {
     dependencies: Vec<String>,
 }
 
-#[derive(Clone)]
-pub struct PluginModule {
-    wasm_data: Vec<u8>,
-}
-
 #[derive(Clone)]
 pub struct Plugin {
     data: PluginData,
@@ -66,7 +61,7 @@ impl Plugin {
             .iter()
             .map(|path| {
                 let wasm_data = files.remove(path).ok_or(PluginError::NoSuchModule)?;
-                Ok(PluginModule { wasm_data })
+                PluginModule::new(&wasm_data).map_err(|e| PluginError::PluginModuleError(e))
             })
             .collect::<Result<_, _>>()?;
 
@@ -76,6 +71,12 @@ impl Plugin {
             files,
         })
     }
+
+    pub fn execute_prepared<T>(&self, event_name: &str, event: &PreparedEventQuery<T>) -> Result<Vec<T::Response>, PluginError> where T: Event {
+        self.modules.iter().flat_map(|module| {
+            module.try_execute(event_name, event).map(|x| x.map_err(|e| PluginError::PluginModuleError(e)))
+        }).collect::<Result<Vec<_>,_>>()
+    }
 }
 
 #[derive(Clone, Default)]
@@ -91,6 +92,16 @@ impl PluginMgr {
         Self::from_dir(assets_path)
     }
 
+    pub fn execute_prepared<T>(&self, event_name: &str,event: &PreparedEventQuery<T>) -> Result<Vec<T::Response>, PluginError> where T: Event {
+        Ok(self.plugins.iter().map(|plugin| {
+            plugin.execute_prepared(event_name, event)
+        }).collect::<Result<Vec<Vec<T::Response>>, _>>()?.into_iter().flatten().collect::<Vec<T::Response>>())
+    }
+
+    pub fn execute_event<T>(&self, event_name: &str,event: &T) -> Result<Vec<T::Response>, PluginError> where T: Event {
+        self.execute_prepared(event_name, &PreparedEventQuery::new(event)?)
+    }
+
     pub fn from_dir<P: AsRef<Path>>(path: P) -> Result<Self, PluginError> {
         let plugins = fs::read_dir(path)
             .map_err(PluginError::Io)?
diff --git a/common/src/plugin/module.rs b/common/src/plugin/module.rs
new file mode 100644
index 0000000000..e025da71be
--- /dev/null
+++ b/common/src/plugin/module.rs
@@ -0,0 +1,150 @@
+use std::{marker::PhantomData, sync::Arc};
+
+use error::RuntimeError;
+use parking_lot::Mutex;
+use wasmer_runtime::*;
+
+use super::errors::{PluginError, PluginModuleError};
+use common_api::{Action, Event};
+
+// This represent a WASM function interface
+pub type Function<'a> = Func<'a, (i32, u32), i32>;
+
+#[derive(Clone)]
+// This tructure represent the WASM State of the plugin.
+pub struct PluginModule {
+    wasm_instance: Arc<Mutex<Instance>>,
+    events: Vec<String>,
+}
+
+impl PluginModule {
+
+    // This function take bytes from a WASM File and compile them
+    pub fn new(wasm_data: &Vec<u8>) -> Result<Self,PluginModuleError> {
+        let module = compile(&wasm_data).map_err(|e| PluginModuleError::Compile(e))?;
+        let instance = module
+            .instantiate(&imports! {"env" => {
+                "send_action" => func!(read_action),
+            }}).map_err(|e| PluginModuleError::Instantiate(e))?;
+        
+        Ok(Self {
+            events: instance.exports.into_iter().map(|(name, _)| name).collect(),
+            wasm_instance: Arc::new(Mutex::new(instance)),
+        })
+    }
+
+    // This function try to execute an event for the current module will return None if the event doesn't exists
+    pub fn try_execute<T>(
+        &self,
+        event_name: &str,
+        request: &PreparedEventQuery<T>,
+    ) -> Option<Result<T::Response,PluginModuleError>>
+    where
+        T: Event,
+    {
+        if !self.events.iter().any(|x| x == event_name) {
+            return None;
+        }
+        let bytes = {
+            let instance = self.wasm_instance.lock();
+            let func = match instance.exports.get(event_name).map_err(|e| PluginModuleError::FunctionGet(e)) {
+                Ok(e) => e,
+                Err(e) => return Some(Err(e))
+            };
+            let mem = instance.context().memory(0);
+            match execute_raw(&mem, &func, &request.bytes).map_err(|e| PluginModuleError::RunFunction(e)) {
+                Ok(e) => e,
+                Err(e) => return Some(Err(e))
+            }
+        };
+        Some(bincode::deserialize(&bytes).map_err(|e| PluginModuleError::Encoding(e)))
+    }
+}
+
+// This structure represent a Pre-encoded event object (Usefull to avoid reencoding for each module in every plugin)
+pub struct PreparedEventQuery<T> {
+    bytes: Vec<u8>,
+    _phantom: PhantomData<T>,
+}
+
+impl<T: Event> PreparedEventQuery<T> {
+    // Create a prepared query from a event reference (Encode to bytes the struct)
+    // This Prepared Query is used by the `try_execute` method in `PluginModule`
+    pub fn new(event: &T) -> Result<Self, PluginError>
+    where
+        T: Event,
+    {
+        Ok(Self {
+            bytes: bincode::serialize(&event).map_err(|e| PluginError::PluginModuleError(PluginModuleError::Encoding(e)))?,
+            _phantom: PhantomData::default(),
+        })
+    }
+}
+
+const MEMORY_POS: usize = 100000;
+
+// This function is not public because this function should not be used without an interface to limit unsafe behaviours
+#[allow(unsafe_code)]
+fn execute_raw(
+    memory: &Memory,
+    function: &Function,
+    bytes: &[u8],
+) -> Result<Vec<u8>, RuntimeError> {
+    let view = memory.view::<u8>();
+    let len = bytes.len();
+    for (cell, byte) in view[MEMORY_POS..len + MEMORY_POS].iter().zip(bytes.iter()) {
+        cell.set(*byte)
+    }
+    let start = function
+        .call(MEMORY_POS as i32, len as u32)? as usize;
+    let view = memory.view::<u8>();
+    let mut new_len_bytes = [0u8; 4];
+    // TODO: It is probably better to dirrectly make the new_len_bytes
+    for i in 0..4 {
+        // Since memory view is a more than 11500 elements array we can get the [1;4] without any bound checks
+        unsafe {
+            new_len_bytes[i] = view.get_unchecked(i + 1).get();
+        }
+    }
+    let new_len = u32::from_ne_bytes(new_len_bytes) as usize;
+    Ok(view[start..start + new_len]
+        .iter()
+        .map(|c| c.get())
+        .collect())
+}
+
+pub fn read_action(ctx: &mut Ctx, ptr: u32, len: u32) {
+    let memory = ctx.memory(0);
+
+    let memory = memory.view::<u8>();
+
+    let str_slice = &memory[ptr as usize..(ptr + len) as usize];
+
+    let bytes: Vec<u8> = str_slice.iter().map(|x| x.get()).collect();
+
+    let e: Vec<Action> = match bincode::deserialize(&bytes) {
+        Ok(e) => e,
+        Err(e) => {
+            tracing::error!(?e, "Can't decode action");
+            return;
+        }
+    };
+
+    for action in e {
+        match action {
+            Action::ServerClose => {
+                tracing::info!("Server closed by plugin");
+                std::process::exit(-1);
+            }
+            Action::Print(e) => {
+                tracing::info!("{}",e);
+            }
+            Action::PlayerSendMessage(a, b) => {
+                tracing::info!("SendMessage {} -> {}",a,b);
+            }
+            Action::KillEntity(e) => {
+                tracing::info!("Kill Entity {}",e);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/common/sys/src/state.rs b/common/sys/src/state.rs
index e8fadcdc0a..6860d4eb5d 100644
--- a/common/sys/src/state.rs
+++ b/common/sys/src/state.rs
@@ -180,13 +180,23 @@ impl State {
 
         // Load plugins from asset directory
         ecs.insert(match PluginMgr::from_assets() {
-            Ok(plugin_mgr) => plugin_mgr,
+            Ok(plugin_mgr) => {
+                if let Err(e) = plugin_mgr.execute_event("on_load", &common::common_api::events::PluginLoadEvent {}) {
+                    tracing::error!(?e, "Failed to run plugin init");
+                    info!("Error occurred when loading plugins. Running without plugins instead.");
+                    PluginMgr::default()
+                } else {
+                    plugin_mgr
+                }
+            },
             Err(_) => {
                 info!("Error occurred when loading plugins. Running without plugins instead.");
                 PluginMgr::default()
             },
         });
 
+        //manager.execute_event("on_load", &);
+
         ecs
     }
 
diff --git a/plugin-api/Cargo.toml b/plugin-api/Cargo.toml
index b8291db26a..3e50ed0f76 100644
--- a/plugin-api/Cargo.toml
+++ b/plugin-api/Cargo.toml
@@ -5,6 +5,9 @@ authors = ["Joshua Barretto <joshua.s.barretto@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-common = { package = "veloren-common", path = "../common" }
+common-api = { path = "../common/common-api" }
+plugin_proc = { path = "./plugin_proc"}
+serde = {version = "1.0.118", features = ["derive"]}
+bincode = "1.3.1"
 
-spin = "0.7"
+# spin = "0.7"
diff --git a/plugin-api/hello/Cargo.lock b/plugin-api/hello/Cargo.lock
index 5cb1e5f6b7..e2fb998e8c 100644
--- a/plugin-api/hello/Cargo.lock
+++ b/plugin-api/hello/Cargo.lock
@@ -1,133 +1,15 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 [[package]]
-name = "adler32"
-version = "1.2.0"
+name = "bincode"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
-
-[[package]]
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-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8fd72866655d1904d6b0997d0b07ba561047d070fbe29de039031c641b61217"
-
-[[package]]
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-version = "0.12.1"
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-checksum = "33954243bd79057c2de7338850b85983a44588021f8a5fee574a8888c6de4344"
-
-[[package]]
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-checksum = "f0e60b75072ecd4168020818c0107f2857bb6c4e64252d8d3983f6263b40a5c3"
+checksum = "f30d3a39baa26f9651f17b375061f3233dde33424a8b72b0dbe93a68a0bc896d"
 dependencies = [
- "num-traits",
-]
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- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn",
-]
-
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-
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-
-[[package]]
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-dependencies = [
- "rand",
+ "byteorder",
  "serde",
- "uuid",
 ]
 
-[[package]]
-name = "authc"
-version = "1.0.0"
-source = "git+https://gitlab.com/veloren/auth.git?rev=b943c85e4a38f5ec60cd18c34c73097640162bfe#b943c85e4a38f5ec60cd18c34c73097640162bfe"
-dependencies = [
- "auth-common",
- "fxhash",
- "hex",
- "rust-argon2",
- "serde_json",
- "ureq",
- "uuid",
-]
-
-[[package]]
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-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
-
-[[package]]
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-
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-
-[[package]]
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-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
-
-[[package]]
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-version = "0.5.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
-dependencies = [
- "arrayref",
- "arrayvec",
- "constant_time_eq",
-]
-
-[[package]]
-name = "bumpalo"
-version = "3.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41aa2ec95ca3b5c54cf73c91acf06d24f4495d5f1b1c12506ae3483d646177ac"
-
 [[package]]
 name = "byteorder"
 version = "1.3.4"
@@ -135,338 +17,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
 
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-
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-
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 [[package]]
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@@ -1175,127 +77,6 @@ dependencies = [
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@@ -1307,341 +88,18 @@ dependencies = [
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-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
+ "bincode",
+ "common-api",
+ "plugin_proc",
+ "serde",
 ]
diff --git a/plugin-api/hello/src/lib.rs b/plugin-api/hello/src/lib.rs
index f6c53cf8a6..1bb679a2a8 100644
--- a/plugin-api/hello/src/lib.rs
+++ b/plugin-api/hello/src/lib.rs
@@ -1,7 +1,18 @@
-use plugin_api::{PLUGIN, api};
+use plugin_api::{*,events::*};
 
-pub extern fn main() {
-    PLUGIN.on_start(|| {
-        api::print("Hello from my plugin!");
-    });
+#[export_function]
+pub fn on_load(load: PluginLoadEvent) -> () {
+    send_actions(vec![Action::Print("This is a test".to_owned())]);
+    println!("Hello world");
+    
+}
+
+#[export_function]
+pub fn on_player_join(input: PlayerJoinEvent) -> PlayerJoinResult {
+    send_actions(vec![Action::PlayerSendMessage(input.player_id,format!("Welcome {} on our server",input.player_name))]);
+    if input.player_name == "Cheater123" {
+        PlayerJoinResult::CloseConnection
+    } else {
+        PlayerJoinResult::None
+    }
 }
diff --git a/plugin-api/plugin_proc/Cargo.toml b/plugin-api/plugin_proc/Cargo.toml
new file mode 100644
index 0000000000..44709430b5
--- /dev/null
+++ b/plugin-api/plugin_proc/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "plugin_proc"
+version = "0.1.0"
+authors = ["ccgauche <gaucheron.laurent@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+proc-macro = true
+
+[dependencies]
+proc-macro2 = "1.0.24"
+syn = { version = "1.0.54", features = ["full","extra-traits"]}
+quote = "1.0.7"
\ No newline at end of file
diff --git a/plugin-api/plugin_proc/src/lib.rs b/plugin-api/plugin_proc/src/lib.rs
new file mode 100644
index 0000000000..023e89a19f
--- /dev/null
+++ b/plugin-api/plugin_proc/src/lib.rs
@@ -0,0 +1,27 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, ItemFn};
+
+#[proc_macro_attribute]
+pub fn export_function(_args: TokenStream, item: TokenStream) -> TokenStream {
+    let parsed = parse_macro_input!(item as ItemFn);
+    let fn_body = parsed.block; // function body
+    let sig = parsed.sig; // function signature
+    let fn_name = sig.ident; // function name/identifier
+    let fn_args = sig.inputs; // comma separated args
+    let fn_return = sig.output; // comma separated args
+    
+    let out: proc_macro2::TokenStream = quote! {
+        #[no_mangle]
+        pub fn #fn_name(intern__ptr: i32, intern__len: u32) -> i32 {
+            let input = plugin_api::read_input(intern__ptr,intern__len).unwrap();
+            fn inner(#fn_args) #fn_return {
+                #fn_body
+            }
+            plugin_api::write_output(&inner(input))
+        }
+    };
+    out.into()
+}
\ No newline at end of file
diff --git a/plugin-api/src/api/mod.rs b/plugin-api/src/api/mod.rs
deleted file mode 100644
index 48d40d36d9..0000000000
--- a/plugin-api/src/api/mod.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-use crate::raw_api;
-
-pub fn print(s: &str) {
-    unsafe {
-        raw_api::print(s.as_bytes().as_ptr(), s.len());
-    }
-}
diff --git a/plugin-api/src/lib.rs b/plugin-api/src/lib.rs
index b3d6fb1e1a..c2d72a9773 100644
--- a/plugin-api/src/lib.rs
+++ b/plugin-api/src/lib.rs
@@ -1,36 +1,40 @@
 #![feature(const_fn)]
 
-pub mod api;
-pub mod raw_api;
-pub mod raw_hooks;
 
-use spin::Mutex;
+pub extern crate plugin_proc;
+pub extern crate common_api;
 
-#[derive(Copy, Clone, Debug)]
-pub enum Hook {
-    OnStart,
-    OnTick,
-    OnStop,
+pub use common_api::*;
+
+
+pub use plugin_proc::*;
+
+use serde::de::DeserializeOwned;
+use serde::Serialize;
+
+extern "C" {
+    fn send_action(ptr: *const u8, len: usize);
 }
 
-pub struct Plugin {
-    pub on_start: Mutex<Vec<Box<dyn Fn() + Send + Sync>>>,
-    pub on_tick: Mutex<Vec<Box<dyn Fn() + Send + Sync>>>,
-    pub on_stop: Mutex<Vec<Box<dyn Fn() + Send + Sync>>>,
-}
-
-impl Plugin {
-    pub const fn new() -> Self {
-        Self {
-            on_start: Mutex::new(Vec::new()),
-            on_tick: Mutex::new(Vec::new()),
-            on_stop: Mutex::new(Vec::new()),
-        }
-    }
-
-    pub fn on_start(&self, f: impl Fn() + Send + Sync + 'static) {
-        self.on_start.lock().push(Box::new(f));
+pub fn send_actions(action: Vec<Action>) {
+    let ret = bincode::serialize(&action).unwrap();
+    unsafe {
+        send_action(ret.as_ptr(), ret.len());
     }
 }
 
-pub static PLUGIN: Plugin = Plugin::new();
+pub fn read_input<T>(ptr: i32, len: u32) -> Result<T, &'static str> where T: DeserializeOwned{
+    let slice = unsafe { 
+        ::std::slice::from_raw_parts(ptr as _, len as _)
+    };
+    bincode::deserialize(slice).map_err(|_|"Failed to deserialize function input")
+}
+
+pub fn write_output(value: impl Serialize) -> i32 {
+    let ret = bincode::serialize(&value).unwrap();
+    let len = ret.len() as u32;
+    unsafe {
+        ::std::ptr::write(1 as _, len);
+    }
+    ret.as_ptr() as _
+}
\ No newline at end of file
diff --git a/plugin-api/src/raw_api/mod.rs b/plugin-api/src/raw_api/mod.rs
deleted file mode 100644
index cfb11dd86e..0000000000
--- a/plugin-api/src/raw_api/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-extern "C" {
-    pub fn print(s: *const u8, len: usize);
-}
diff --git a/plugin-api/src/raw_hooks/mod.rs b/plugin-api/src/raw_hooks/mod.rs
deleted file mode 100644
index 875e86902f..0000000000
--- a/plugin-api/src/raw_hooks/mod.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-use super::*;
-
-// API
-pub extern "C" fn on_tick() { PLUGIN.on_tick.lock().iter().for_each(|f| f()); }