From 4b1cdfdb73b47fa0bd635e1c0cb48106a3dda365 Mon Sep 17 00:00:00 2001 From: Antonio De Lucreziis Date: Fri, 20 Jan 2023 01:08:34 +0100 Subject: [PATCH] Initial commit --- .gitignore | 11 ++ go.mod | 13 ++ go.sum | 50 +++++++ index.html | 22 +++ main.go | 133 +++++++++++++++++ package.json | 16 +++ pnpm-lock.yaml | 353 ++++++++++++++++++++++++++++++++++++++++++++++ src/engine.ts | 109 ++++++++++++++ src/game-1.ts | 58 ++++++++ src/graphics2d.ts | 34 +++++ src/main.ts | 15 ++ src/style.css | 30 ++++ src/types.ts | 41 ++++++ tsconfig.json | 103 ++++++++++++++ vite.config.js | 13 ++ 15 files changed, 1001 insertions(+) create mode 100644 .gitignore create mode 100644 go.mod create mode 100644 go.sum create mode 100644 index.html create mode 100644 main.go create mode 100644 package.json create mode 100644 pnpm-lock.yaml create mode 100644 src/engine.ts create mode 100644 src/game-1.ts create mode 100644 src/graphics2d.ts create mode 100644 src/main.ts create mode 100644 src/style.css create mode 100644 src/types.ts create mode 100644 tsconfig.json create mode 100644 vite.config.js diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..9dcce9a --- /dev/null +++ b/.gitignore @@ -0,0 +1,11 @@ +.env +*.local* +bin/ + +.out/ +out/ +dist/ + +node_modules/ + +.vscode/ diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..0d61995 --- /dev/null +++ b/go.mod @@ -0,0 +1,13 @@ +module game + +go 1.19 + +require ( + github.com/alecthomas/repr v0.2.0 // indirect + github.com/go-chi/chi/v5 v5.0.8 // indirect + github.com/gobwas/httphead v0.1.0 // indirect + github.com/gobwas/pool v0.2.1 // indirect + github.com/gobwas/ws v1.1.0 // indirect + github.com/klauspost/compress v1.10.3 // indirect + nhooyr.io/websocket v1.8.7 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..58cf402 --- /dev/null +++ b/go.sum @@ -0,0 +1,50 @@ +github.com/alecthomas/repr v0.2.0 h1:HAzS41CIzNW5syS8Mf9UwXhNH1J9aix/BvDRf1Ml2Yk= +github.com/alecthomas/repr v0.2.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= +github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M= +github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0= +github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8= +github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= +github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8= +github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA= +github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI= +github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo= +github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU= +github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM= +github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw= +github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og= +github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw= +github.com/gobwas/ws v1.0.2/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM= +github.com/gobwas/ws v1.1.0 h1:7RFti/xnNkMJnrK7D1yQ/iCIB5OrrY/54/H930kIbHA= +github.com/gobwas/ws v1.1.0/go.mod h1:nzvNcVha5eUziGrbxFCo6qFIojQHjJV5cLYIbezhfL0= +github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw= +github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk= +github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= +github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= +github.com/klauspost/compress v1.10.3 h1:OP96hzwJVBIHYU52pVTI6CczrxPvrGfgqF9N5eTO0Q8= +github.com/klauspost/compress v1.10.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs= +github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII= +github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw= +github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY= +golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20201207223542-d4d67f95c62d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= +golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +nhooyr.io/websocket v1.8.7 h1:usjR2uOr/zjjkVMy0lW+PPohFok7PCow5sDjLgX4P4g= +nhooyr.io/websocket v1.8.7/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0= diff --git a/index.html b/index.html new file mode 100644 index 0000000..17871ed --- /dev/null +++ b/index.html @@ -0,0 +1,22 @@ + + + + + + + + + + Game 1 + + + +
+ + + +
+ + + + diff --git a/main.go b/main.go new file mode 100644 index 0000000..622fc04 --- /dev/null +++ b/main.go @@ -0,0 +1,133 @@ +package main + +import ( + "context" + "encoding/json" + "log" + "net" + "net/http" + "time" + + "github.com/go-chi/chi/v5" + "github.com/go-chi/chi/v5/middleware" + "github.com/gobwas/ws" + "github.com/gobwas/ws/wsutil" +) + +type Point2d struct { + X float64 `json:"x"` + Y float64 `json:"y"` +} + +type Player struct { + Nickname string + Connection net.Conn + + Position Point2d +} + +type clientState Point2d + +type serverState struct { + Entities []Point2d `json:"entities"` +} + +func main() { + r := chi.NewRouter() + r.Use(middleware.Logger) + r.Use(middleware.Recoverer) + + players := map[string]*Player{} + + r.Get("/api/ws", func(w http.ResponseWriter, r *http.Request) { + username := r.URL.Query().Get("username") + + conn, _, _, err := ws.UpgradeHTTP(r, w) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + + players[username] = &Player{ + Nickname: username, + Connection: conn, + + Position: Point2d{0, 0}, + } + + go func() { + log.Printf(`[%s] logged in`, username) + + ctx, cancelComms := context.WithCancel(context.Background()) + + go func() { + defer cancelComms() + + for { + serverMsg := &serverState{ + Entities: []Point2d{}, + } + + // generate custom message for this client + for name, player := range players { + if name != username { + serverMsg.Entities = append(serverMsg.Entities, player.Position) + } + } + + rawServerMsg, err := json.Marshal(serverMsg) + if err != nil { + log.Print(err) + return + } + + if err := wsutil.WriteServerText(conn, rawServerMsg); err != nil { + log.Print(err) + return + } + + select { + case <-ctx.Done(): + return + case <-time.NewTimer(1000 / 30 * time.Millisecond).C: + } + } + }() + go func() { + defer cancelComms() + + for { + rawClientMsg, err := wsutil.ReadClientText(conn) + if err != nil { + log.Print(err) + return + } + + var clientMsg clientState + if err := json.Unmarshal(rawClientMsg, &clientMsg); err != nil { + log.Print(err) + return + } + + // log.Printf(`[%v] Server received: %s`, username, repr.String(clientMsg)) + players[username].Position = Point2d(clientMsg) + + select { + case <-ctx.Done(): + return + case <-time.NewTimer(1000 / 30 * time.Millisecond).C: + } + } + }() + + <-ctx.Done() + log.Printf(`[%s] left the session`, username) + + delete(players, username) + conn.Close() + }() + }) + + log.Printf(`Starting server on :4000...`) + log.Fatal(http.ListenAndServe(":4000", r)) +} diff --git a/package.json b/package.json new file mode 100644 index 0000000..0bdf81b --- /dev/null +++ b/package.json @@ -0,0 +1,16 @@ +{ + "name": "game-1", + "version": "1.0.0", + "description": "", + "main": "index.js", + "scripts": { + "dev": "vite", + "build": "vite build" + }, + "author": "aziis98", + "license": "MIT", + "devDependencies": { + "typescript": "^4.9.4", + "vite": "^4.0.4" + } +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml new file mode 100644 index 0000000..9ff1443 --- /dev/null +++ b/pnpm-lock.yaml @@ -0,0 +1,353 @@ +lockfileVersion: 5.4 + +specifiers: + typescript: ^4.9.4 + vite: ^4.0.4 + +devDependencies: + typescript: 4.9.4 + vite: 4.0.4 + +packages: + + /@esbuild/android-arm/0.16.17: + resolution: {integrity: sha512-N9x1CMXVhtWEAMS7pNNONyA14f71VPQN9Cnavj1XQh6T7bskqiLLrSca4O0Vr8Wdcga943eThxnVp3JLnBMYtw==} + engines: {node: '>=12'} + cpu: [arm] + os: [android] + requiresBuild: true + dev: true + optional: true + + /@esbuild/android-arm64/0.16.17: + resolution: {integrity: sha512-MIGl6p5sc3RDTLLkYL1MyL8BMRN4tLMRCn+yRJJmEDvYZ2M7tmAf80hx1kbNEUX2KJ50RRtxZ4JHLvCfuB6kBg==} + engines: {node: '>=12'} + cpu: [arm64] + os: [android] + requiresBuild: true + dev: true + optional: true + + /@esbuild/android-x64/0.16.17: + resolution: {integrity: sha512-a3kTv3m0Ghh4z1DaFEuEDfz3OLONKuFvI4Xqczqx4BqLyuFaFkuaG4j2MtA6fuWEFeC5x9IvqnX7drmRq/fyAQ==} + engines: {node: '>=12'} + cpu: [x64] + os: [android] + requiresBuild: true + dev: true + optional: true + + /@esbuild/darwin-arm64/0.16.17: + resolution: {integrity: sha512-/2agbUEfmxWHi9ARTX6OQ/KgXnOWfsNlTeLcoV7HSuSTv63E4DqtAc+2XqGw1KHxKMHGZgbVCZge7HXWX9Vn+w==} + engines: {node: '>=12'} + cpu: [arm64] + os: [darwin] + requiresBuild: true + dev: true + optional: true + + /@esbuild/darwin-x64/0.16.17: + resolution: {integrity: sha512-2By45OBHulkd9Svy5IOCZt376Aa2oOkiE9QWUK9fe6Tb+WDr8hXL3dpqi+DeLiMed8tVXspzsTAvd0jUl96wmg==} + engines: {node: '>=12'} + cpu: [x64] + os: [darwin] + requiresBuild: true + dev: true + optional: true + + /@esbuild/freebsd-arm64/0.16.17: + resolution: {integrity: sha512-mt+cxZe1tVx489VTb4mBAOo2aKSnJ33L9fr25JXpqQqzbUIw/yzIzi+NHwAXK2qYV1lEFp4OoVeThGjUbmWmdw==} + engines: {node: '>=12'} + cpu: [arm64] + os: [freebsd] + requiresBuild: true + dev: true + optional: true + + /@esbuild/freebsd-x64/0.16.17: + resolution: {integrity: sha512-8ScTdNJl5idAKjH8zGAsN7RuWcyHG3BAvMNpKOBaqqR7EbUhhVHOqXRdL7oZvz8WNHL2pr5+eIT5c65kA6NHug==} + engines: {node: '>=12'} + cpu: [x64] + os: [freebsd] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-arm/0.16.17: + resolution: {integrity: sha512-iihzrWbD4gIT7j3caMzKb/RsFFHCwqqbrbH9SqUSRrdXkXaygSZCZg1FybsZz57Ju7N/SHEgPyaR0LZ8Zbe9gQ==} + engines: {node: '>=12'} + cpu: [arm] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-arm64/0.16.17: + resolution: {integrity: sha512-7S8gJnSlqKGVJunnMCrXHU9Q8Q/tQIxk/xL8BqAP64wchPCTzuM6W3Ra8cIa1HIflAvDnNOt2jaL17vaW+1V0g==} + engines: {node: '>=12'} + cpu: [arm64] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-ia32/0.16.17: + resolution: {integrity: sha512-kiX69+wcPAdgl3Lonh1VI7MBr16nktEvOfViszBSxygRQqSpzv7BffMKRPMFwzeJGPxcio0pdD3kYQGpqQ2SSg==} + engines: {node: '>=12'} + cpu: [ia32] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-loong64/0.16.17: + resolution: {integrity: sha512-dTzNnQwembNDhd654cA4QhbS9uDdXC3TKqMJjgOWsC0yNCbpzfWoXdZvp0mY7HU6nzk5E0zpRGGx3qoQg8T2DQ==} + engines: {node: '>=12'} + cpu: [loong64] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-mips64el/0.16.17: + resolution: {integrity: sha512-ezbDkp2nDl0PfIUn0CsQ30kxfcLTlcx4Foz2kYv8qdC6ia2oX5Q3E/8m6lq84Dj/6b0FrkgD582fJMIfHhJfSw==} + engines: {node: '>=12'} + cpu: [mips64el] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-ppc64/0.16.17: + resolution: {integrity: sha512-dzS678gYD1lJsW73zrFhDApLVdM3cUF2MvAa1D8K8KtcSKdLBPP4zZSLy6LFZ0jYqQdQ29bjAHJDgz0rVbLB3g==} + engines: {node: '>=12'} + cpu: [ppc64] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-riscv64/0.16.17: + resolution: {integrity: sha512-ylNlVsxuFjZK8DQtNUwiMskh6nT0vI7kYl/4fZgV1llP5d6+HIeL/vmmm3jpuoo8+NuXjQVZxmKuhDApK0/cKw==} + engines: {node: '>=12'} + cpu: [riscv64] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-s390x/0.16.17: + resolution: {integrity: sha512-gzy7nUTO4UA4oZ2wAMXPNBGTzZFP7mss3aKR2hH+/4UUkCOyqmjXiKpzGrY2TlEUhbbejzXVKKGazYcQTZWA/w==} + engines: {node: '>=12'} + cpu: [s390x] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/linux-x64/0.16.17: + resolution: {integrity: sha512-mdPjPxfnmoqhgpiEArqi4egmBAMYvaObgn4poorpUaqmvzzbvqbowRllQ+ZgzGVMGKaPkqUmPDOOFQRUFDmeUw==} + engines: {node: '>=12'} + cpu: [x64] + os: [linux] + requiresBuild: true + dev: true + optional: true + + /@esbuild/netbsd-x64/0.16.17: + resolution: {integrity: sha512-/PzmzD/zyAeTUsduZa32bn0ORug+Jd1EGGAUJvqfeixoEISYpGnAezN6lnJoskauoai0Jrs+XSyvDhppCPoKOA==} + engines: {node: '>=12'} + cpu: [x64] + os: [netbsd] + requiresBuild: true + dev: true + optional: true + + /@esbuild/openbsd-x64/0.16.17: + resolution: {integrity: sha512-2yaWJhvxGEz2RiftSk0UObqJa/b+rIAjnODJgv2GbGGpRwAfpgzyrg1WLK8rqA24mfZa9GvpjLcBBg8JHkoodg==} + engines: {node: '>=12'} + cpu: [x64] + os: [openbsd] + requiresBuild: true + dev: true + optional: true + + /@esbuild/sunos-x64/0.16.17: + resolution: {integrity: sha512-xtVUiev38tN0R3g8VhRfN7Zl42YCJvyBhRKw1RJjwE1d2emWTVToPLNEQj/5Qxc6lVFATDiy6LjVHYhIPrLxzw==} + engines: {node: '>=12'} + cpu: [x64] + os: [sunos] + requiresBuild: true + dev: true + optional: true + + /@esbuild/win32-arm64/0.16.17: + resolution: {integrity: sha512-ga8+JqBDHY4b6fQAmOgtJJue36scANy4l/rL97W+0wYmijhxKetzZdKOJI7olaBaMhWt8Pac2McJdZLxXWUEQw==} + engines: {node: '>=12'} + cpu: [arm64] + os: [win32] + requiresBuild: true + dev: true + optional: true + + /@esbuild/win32-ia32/0.16.17: + resolution: {integrity: sha512-WnsKaf46uSSF/sZhwnqE4L/F89AYNMiD4YtEcYekBt9Q7nj0DiId2XH2Ng2PHM54qi5oPrQ8luuzGszqi/veig==} + engines: {node: '>=12'} + cpu: [ia32] + os: [win32] + requiresBuild: true + dev: true + optional: true + + /@esbuild/win32-x64/0.16.17: + resolution: {integrity: sha512-y+EHuSchhL7FjHgvQL/0fnnFmO4T1bhvWANX6gcnqTjtnKWbTvUMCpGnv2+t+31d7RzyEAYAd4u2fnIhHL6N/Q==} + engines: {node: '>=12'} + cpu: [x64] + os: [win32] + requiresBuild: true + dev: true + optional: true + + /esbuild/0.16.17: + resolution: {integrity: sha512-G8LEkV0XzDMNwXKgM0Jwu3nY3lSTwSGY6XbxM9cr9+s0T/qSV1q1JVPBGzm3dcjhCic9+emZDmMffkwgPeOeLg==} + engines: {node: '>=12'} + hasBin: true + requiresBuild: true + optionalDependencies: + '@esbuild/android-arm': 0.16.17 + '@esbuild/android-arm64': 0.16.17 + '@esbuild/android-x64': 0.16.17 + '@esbuild/darwin-arm64': 0.16.17 + '@esbuild/darwin-x64': 0.16.17 + '@esbuild/freebsd-arm64': 0.16.17 + '@esbuild/freebsd-x64': 0.16.17 + '@esbuild/linux-arm': 0.16.17 + '@esbuild/linux-arm64': 0.16.17 + '@esbuild/linux-ia32': 0.16.17 + '@esbuild/linux-loong64': 0.16.17 + '@esbuild/linux-mips64el': 0.16.17 + '@esbuild/linux-ppc64': 0.16.17 + '@esbuild/linux-riscv64': 0.16.17 + '@esbuild/linux-s390x': 0.16.17 + '@esbuild/linux-x64': 0.16.17 + '@esbuild/netbsd-x64': 0.16.17 + '@esbuild/openbsd-x64': 0.16.17 + '@esbuild/sunos-x64': 0.16.17 + '@esbuild/win32-arm64': 0.16.17 + '@esbuild/win32-ia32': 0.16.17 + '@esbuild/win32-x64': 0.16.17 + dev: true + + /fsevents/2.3.2: + resolution: {integrity: sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==} + engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0} + os: [darwin] + requiresBuild: true + dev: true + optional: true + + /function-bind/1.1.1: + resolution: {integrity: sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==} + dev: true + + /has/1.0.3: + resolution: {integrity: sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==} + engines: {node: '>= 0.4.0'} + dependencies: + function-bind: 1.1.1 + dev: true + + /is-core-module/2.11.0: + resolution: {integrity: sha512-RRjxlvLDkD1YJwDbroBHMb+cukurkDWNyHx7D3oNB5x9rb5ogcksMC5wHCadcXoo67gVr/+3GFySh3134zi6rw==} + dependencies: + has: 1.0.3 + dev: true + + /nanoid/3.3.4: + resolution: {integrity: sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==} + engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1} + hasBin: true + dev: true + + /path-parse/1.0.7: + resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==} + dev: true + + /picocolors/1.0.0: + resolution: {integrity: sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==} + dev: true + + /postcss/8.4.21: + resolution: {integrity: sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==} + engines: {node: ^10 || ^12 || >=14} + dependencies: + nanoid: 3.3.4 + picocolors: 1.0.0 + source-map-js: 1.0.2 + dev: true + + /resolve/1.22.1: + resolution: {integrity: sha512-nBpuuYuY5jFsli/JIs1oldw6fOQCBioohqWZg/2hiaOybXOft4lonv85uDOKXdf8rhyK159cxU5cDcK/NKk8zw==} + hasBin: true + dependencies: + is-core-module: 2.11.0 + path-parse: 1.0.7 + supports-preserve-symlinks-flag: 1.0.0 + dev: true + + /rollup/3.10.0: + resolution: {integrity: sha512-JmRYz44NjC1MjVF2VKxc0M1a97vn+cDxeqWmnwyAF4FvpjK8YFdHpaqvQB+3IxCvX05vJxKZkoMDU8TShhmJVA==} + engines: {node: '>=14.18.0', npm: '>=8.0.0'} + hasBin: true + optionalDependencies: + fsevents: 2.3.2 + dev: true + + /source-map-js/1.0.2: + resolution: {integrity: sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==} + engines: {node: '>=0.10.0'} + dev: true + + /supports-preserve-symlinks-flag/1.0.0: + resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==} + engines: {node: '>= 0.4'} + dev: true + + /typescript/4.9.4: + resolution: {integrity: sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg==} + engines: {node: '>=4.2.0'} + hasBin: true + dev: true + + /vite/4.0.4: + resolution: {integrity: sha512-xevPU7M8FU0i/80DMR+YhgrzR5KS2ORy1B4xcX/cXLsvnUWvfHuqMmVU6N0YiJ4JWGRJJsLCgjEzKjG9/GKoSw==} + engines: {node: ^14.18.0 || >=16.0.0} + hasBin: true + peerDependencies: + '@types/node': '>= 14' + less: '*' + sass: '*' + stylus: '*' + sugarss: '*' + terser: ^5.4.0 + peerDependenciesMeta: + '@types/node': + optional: true + less: + optional: true + sass: + optional: true + stylus: + optional: true + sugarss: + optional: true + terser: + optional: true + dependencies: + esbuild: 0.16.17 + postcss: 8.4.21 + resolve: 1.22.1 + rollup: 3.10.0 + optionalDependencies: + fsevents: 2.3.2 + dev: true diff --git a/src/engine.ts b/src/engine.ts new file mode 100644 index 0000000..1de7042 --- /dev/null +++ b/src/engine.ts @@ -0,0 +1,109 @@ +import { Graphics2D, upgradeToGraphics2D } from './graphics2d' +import { IGame, InputState } from './types' + +const createContext2D = ($c: HTMLCanvasElement): Graphics2D => { + const scale = window.devicePixelRatio + + $c.width = Math.floor($c.offsetWidth * scale) + $c.height = Math.floor($c.offsetHeight * scale) + + const g = upgradeToGraphics2D($c.getContext('2d')!) + g.scale(scale, scale) + + return g +} + +/** + * This function will start the given game inside the canvas `$c` and using the WebSocket `ws` to talk to the server + */ +export function createGame($c: HTMLCanvasElement, ws: WebSocket, game: IGame) { + // tell whether to create a new rendering context (at start and after window resize) + let invalidated = true + // tell whether to actually redraw the screen + let repaint = true + + const inputs: InputState = { + mouse: { + x: 0, + y: 0, + pressed: new Set(), + }, + keyboard: { + pressed: new Set(), + }, + } + + window.addEventListener('resize', () => { + invalidated = true + }) + + const onMouseMove = (e: MouseEvent | TouchEvent) => { + if (e instanceof MouseEvent) { + inputs.mouse.x = e.x + inputs.mouse.y = e.y + + inputs.mouse.pressed.clear() + if (((e.buttons >> 0) & 1) === 1) inputs.mouse.pressed.add('left') + if (((e.buttons >> 1) & 1) === 1) inputs.mouse.pressed.add('right') + if (((e.buttons >> 2) & 1) === 1) inputs.mouse.pressed.add('middle') + } else { + inputs.mouse.x = e.touches.item(0)?.pageX ?? 0 + inputs.mouse.y = e.touches.item(0)?.pageY ?? 0 + } + + game.onMouseMoved?.(inputs) + } + + window.addEventListener('mousemove', e => onMouseMove(e)) + window.addEventListener('drag', e => onMouseMove(e)) + window.addEventListener('touchmove', e => onMouseMove(e)) + + let g = createContext2D($c) + + const paint = () => { + if (invalidated) { + g = createContext2D($c) + invalidated = false + } + if (repaint) { + game.render(g) + repaint = false + } + + requestAnimationFrame(paint) + } + + let lastUpdate = new Date().getTime() + game.update({ dt: 1000 / 30, inputs }) + + // start update loop at 30FPS + setInterval(() => { + const now = new Date().getTime() + repaint = game.update({ dt: now - lastUpdate, inputs }) + lastUpdate = now + }, 1000 / 60) + + let lastServerMessage: S | null = null + + ws.addEventListener('open', () => { + // start server communication loop at 30FPS + setInterval(() => { + const clientMessage = game.getClientState() + if (clientMessage) { + console.log('sending data') + + ws.send(JSON.stringify(clientMessage)) + } + }, 1000 / 30) + }) + + ws.addEventListener('message', e => { + console.log('receiving data') + + const serverMessage = JSON.parse(e.data) + game.onServerState(serverMessage) + }) + + // start render loop + requestAnimationFrame(paint) +} diff --git a/src/game-1.ts b/src/game-1.ts new file mode 100644 index 0000000..a582b1b --- /dev/null +++ b/src/game-1.ts @@ -0,0 +1,58 @@ +import { Graphics2D } from './graphics2d' +import { IGame, InputState } from './types' + +type ServerState = { + entities: { + x: number + y: number + }[] +} + +type ClientState = { x: 0; y: 0 } + +export default class Game1 implements IGame { + world: ServerState = { entities: [] } + player: ClientState = { x: 0, y: 0 } + + mouseStillSinceLastComm = false + + render(g: Graphics2D) { + g.clearRect(0, 0, g.width, g.height) + + g.fillStyle = '#ff0000' + g.beginPath() + g.rect(this.player.x - 10, this.player.y - 10, 20, 20) + g.fill() + + for (const entity of this.world.entities) { + g.fillStyle = '#0000ff' + g.beginPath() + g.rect(entity.x - 10, entity.y - 10, 20, 20) + g.fill() + } + } + + update({ inputs }): boolean { + this.player.x = inputs.mouse.x + this.player.y = inputs.mouse.y + + return true + } + + onMouseMoved(): void { + this.mouseStillSinceLastComm = false + } + + getClientState(): ClientState | null { + if (this.mouseStillSinceLastComm) { + return null + } else { + this.mouseStillSinceLastComm = true + return this.player + } + } + + onServerState(serverData: ServerState) { + this.world = serverData + } +} diff --git a/src/graphics2d.ts b/src/graphics2d.ts new file mode 100644 index 0000000..344bc63 --- /dev/null +++ b/src/graphics2d.ts @@ -0,0 +1,34 @@ +/** + * A custom wrapper to the default CanvasRenderingContext2D with some utility methods + * + * @see CanvasRenderingContext2D + */ +export interface Graphics2D extends CanvasRenderingContext2D { + width: number + height: number + + /** + * The default CanvasRenderingContext2D provides an "ellipse" method but has just to many parameters when needing to just draw a circle or a dot on the screen + * + * @see CanvasRenderingContext2D + */ + circle(x: number, y: number, radius: number) +} + +function circle(this: Graphics2D, x: number, y: number, radius: number) { + this.ellipse(x, y, radius, radius, 0, 0, Math.PI * 2) +} + +/** + * This function will patch a CanvasRenderingContext2D and add methods to make it implement Graphics2D + */ +export function upgradeToGraphics2D(g: CanvasRenderingContext2D): Graphics2D { + // @ts-ignore + g.circle = circle + // @ts-ignore + g.width = g.canvas.width + // @ts-ignore + g.height = g.canvas.height + + return g as Graphics2D +} diff --git a/src/main.ts b/src/main.ts new file mode 100644 index 0000000..02838b3 --- /dev/null +++ b/src/main.ts @@ -0,0 +1,15 @@ +import { createGame } from './engine' +import Game1 from './game-1' + +const $overlay = document.querySelector('#overlay')! +const $inputNickname = document.querySelector('#game-nickname')! +const $btnEnterGame = document.querySelector('#game-enter')! +const $canvas = document.querySelector('canvas')! + +$btnEnterGame.addEventListener('click', () => { + const username = $inputNickname.value + $overlay.style.display = 'none' + + const ws = new WebSocket(`ws://${location.host}/api/ws?username=${username}`) + createGame($canvas, ws, new Game1()) +}) diff --git a/src/style.css b/src/style.css new file mode 100644 index 0000000..881555d --- /dev/null +++ b/src/style.css @@ -0,0 +1,30 @@ +* { + box-sizing: border-box; +} + +html, +body { + margin: 0; + display: contents; + width: 100%; + height: 100%; + + position: relative; +} + +canvas { + display: block; + + width: 100%; + height: 100%; +} + +#overlay { + position: absolute; + left: 50%; + top: 50%; + transform: translate(-50%, -50%); + padding: 1rem; + background: #00000022; + border-radius: 0.5rem; +} diff --git a/src/types.ts b/src/types.ts new file mode 100644 index 0000000..4116400 --- /dev/null +++ b/src/types.ts @@ -0,0 +1,41 @@ +import { Graphics2D } from './graphics2d' + +type MouseButtons = 'left' | 'middle' | 'right' + +export type InputState = { + mouse: { + x: number + y: number + pressed: Set + } + keyboard: { + pressed: Set + } +} + +/** + * Every game should implement this interface, if provided the present event handlers (the methods starting with "on-") will automatically be registered + */ +export interface IGame { + /** + * Render from scratch the game state on screen + */ + render(g: Graphics2D): void + + /** + * Update the game state + * + * @param dt Delta time passed from last update, useful for physics calculations + * @returns Whether to repaint the screen on next frame + */ + update(engine: { dt: number; inputs: InputState }): boolean + + getClientState(): C | null + onServerState(serverState: S): void + + onMousePressed?(inputs: InputState): void + onMouseReleased?(inputs: InputState): void + onMouseMoved?(inputs: InputState): void + onKeyPressed?(inputs: InputState): void + onKeyReleased?(inputs: InputState): void +} diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..d87cc6f --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,103 @@ +{ + "compilerOptions": { + /* Visit https://aka.ms/tsconfig to read more about this file */ + + /* Projects */ + // "incremental": true, /* Save .tsbuildinfo files to allow for incremental compilation of projects. */ + // "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */ + // "tsBuildInfoFile": "./.tsbuildinfo", /* Specify the path to .tsbuildinfo incremental compilation file. */ + // "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects. */ + // "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */ + // "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */ + + /* Language and Environment */ + "target": "ESNext" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */, + // "lib": [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */ + // "jsx": "preserve", /* Specify what JSX code is generated. */ + // "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */ + // "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */ + // "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */ + // "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */ + // "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */ + // "reactNamespace": "", /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */ + // "noLib": true, /* Disable including any library files, including the default lib.d.ts. */ + // "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */ + // "moduleDetection": "auto", /* Control what method is used to detect module-format JS files. */ + + /* Modules */ + "module": "ESNext" /* Specify what module code is generated. */, + // "rootDir": "./", /* Specify the root folder within your source files. */ + // "moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */ + // "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */ + // "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */ + // "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */ + // "typeRoots": [], /* Specify multiple folders that act like './node_modules/@types'. */ + // "types": [], /* Specify type package names to be included without being referenced in a source file. */ + // "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */ + // "moduleSuffixes": [], /* List of file name suffixes to search when resolving a module. */ + // "resolveJsonModule": true, /* Enable importing .json files. */ + // "noResolve": true, /* Disallow 'import's, 'require's or ''s from expanding the number of files TypeScript should add to a project. */ + + /* JavaScript Support */ + // "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */ + // "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */ + // "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */ + + /* Emit */ + // "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */ + // "declarationMap": true, /* Create sourcemaps for d.ts files. */ + // "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */ + // "sourceMap": true, /* Create source map files for emitted JavaScript files. */ + // "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */ + // "outDir": "./", /* Specify an output folder for all emitted files. */ + // "removeComments": true, /* Disable emitting comments. */ + // "noEmit": true, /* Disable emitting files from a compilation. */ + // "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */ + // "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types. */ + // "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */ + // "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */ + // "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */ + // "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */ + // "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */ + // "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */ + // "newLine": "crlf", /* Set the newline character for emitting files. */ + // "stripInternal": true, /* Disable emitting declarations that have '@internal' in their JSDoc comments. */ + // "noEmitHelpers": true, /* Disable generating custom helper functions like '__extends' in compiled output. */ + // "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */ + // "preserveConstEnums": true, /* Disable erasing 'const enum' declarations in generated code. */ + // "declarationDir": "./", /* Specify the output directory for generated declaration files. */ + // "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */ + + /* Interop Constraints */ + // "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */ + // "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */ + "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */, + // "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */ + "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */, + + /* Type Checking */ + "strict": true /* Enable all strict type-checking options. */, + "noImplicitAny": false /* Enable error reporting for expressions and declarations with an implied 'any' type. */, + // "strictNullChecks": true, /* When type checking, take into account 'null' and 'undefined'. */ + // "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */ + // "strictBindCallApply": true, /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */ + // "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */ + // "noImplicitThis": true, /* Enable error reporting when 'this' is given the type 'any'. */ + // "useUnknownInCatchVariables": true, /* Default catch clause variables as 'unknown' instead of 'any'. */ + // "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */ + // "noUnusedLocals": true, /* Enable error reporting when local variables aren't read. */ + // "noUnusedParameters": true, /* Raise an error when a function parameter isn't read. */ + // "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */ + // "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */ + // "noFallthroughCasesInSwitch": true, /* Enable error reporting for fallthrough cases in switch statements. */ + // "noUncheckedIndexedAccess": true, /* Add 'undefined' to a type when accessed using an index. */ + // "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an override modifier. */ + // "noPropertyAccessFromIndexSignature": true, /* Enforces using indexed accessors for keys declared using an indexed type. */ + // "allowUnusedLabels": true, /* Disable error reporting for unused labels. */ + // "allowUnreachableCode": true, /* Disable error reporting for unreachable code. */ + + /* Completeness */ + // "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */ + "skipLibCheck": true /* Skip type checking all .d.ts files. */ + } +} diff --git a/vite.config.js b/vite.config.js new file mode 100644 index 0000000..074920a --- /dev/null +++ b/vite.config.js @@ -0,0 +1,13 @@ +import { defineConfig } from 'vite' + +export default defineConfig({ + server: { + port: 3000, + proxy: { + '/api': { + target: 'http://localhost:4000/', + ws: true, + }, + }, + }, +})