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Initial ebitengine android project
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.github/workflows/ci.yaml

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name: Build APK
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on:
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push:
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branches: [main]
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pull_request:
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branches: [main]
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workflow_dispatch:
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Set up Go
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uses: actions/setup-go@v4
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with:
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go-version: "1.21"
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- name: Install ARM cross-compilers
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run: |
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sudo apt-get update
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sudo apt-get install -y gcc-arm-linux-gnueabihf libc6-dev-armhf-cross
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- name: Set up Android environment
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uses: android-actions/setup-android@v2
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with:
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ndk-version: "27.2.12479018" # Using available NDK version
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sdk-platform: "android-34"
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sdk-build-tools: "34.0.0"
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- name: Configure environment
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run: |
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echo "ANDROID_HOME=$ANDROID_SDK_ROOT" >> $GITHUB_ENV
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echo "ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk/27.2.12479018" >> $GITHUB_ENV
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echo "$GOPATH/bin" >> $GITHUB_PATH
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- name: Verify NDK installation
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run: |
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echo "=== NDK Contents ==="
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ls -la $ANDROID_NDK_HOME
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echo "=== NDK Meta ==="
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ls -la $ANDROID_NDK_HOME/meta
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- name: Install gomobile
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run: |
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go install golang.org/x/mobile/cmd/gomobile@latest
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gomobile init
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- name: Build Android package
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run: |
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cd $GITHUB_WORKSPACE
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gomobile build \
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-target=android/arm,android/arm64 \
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-androidapi=34 \
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-tags=android \
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-o game.apk \
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./cmd/game
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- name: Upload APK
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uses: actions/upload-artifact@v4
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with:
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name: game-apk
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path: game.apk

LICENSE

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Apache License
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cmd/game/main.go

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//go:build !android
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package main
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import (
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"log"
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"testplatformer/internal/scenes"
8+
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"github.com/hajimehoshi/ebiten/v2"
10+
)
11+
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func main() {
13+
ebiten.SetWindowSize(640, 480)
14+
ebiten.SetWindowTitle("My Platformer")
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if err := ebiten.RunGame(scenes.NewGame()); err != nil {
16+
log.Fatal(err)
17+
}
18+
}

cmd/game/mobile.go

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//go:build android
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package main
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import (
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"log"
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"testplatformer/internal/scenes"
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9+
"github.com/hajimehoshi/ebiten/v2"
10+
"golang.org/x/mobile/app"
11+
"golang.org/x/mobile/event/lifecycle"
12+
)
13+
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func main() {
15+
app.Main(func(a app.App) {
16+
for e := range a.Events() {
17+
switch e := a.Filter(e).(type) {
18+
case lifecycle.Event:
19+
if e.Crosses(lifecycle.StageVisible) == lifecycle.CrossOn {
20+
go func() {
21+
ebiten.SetWindowSize(640, 480)
22+
ebiten.SetWindowTitle("My Platformer")
23+
if err := ebiten.RunGame(scenes.NewGame()); err != nil {
24+
log.Fatal(err)
25+
}
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}()
27+
}
28+
}
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}
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})
31+
}

go.mod

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module testplatformer
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go 1.24.2
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require (
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github.com/hajimehoshi/ebiten/v2 v2.8.8
7+
golang.org/x/mobile v0.0.0-20250408133729-978277e7eaf7
8+
)
9+
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require (
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github.com/ebitengine/gomobile v0.0.0-20250209143333-6071a2a2351c // indirect
12+
github.com/ebitengine/hideconsole v1.0.0 // indirect
13+
github.com/ebitengine/purego v0.8.2 // indirect
14+
github.com/jezek/xgb v1.1.1 // indirect
15+
golang.org/x/exp/shiny v0.0.0-20230817173708-d852ddb80c63 // indirect
16+
golang.org/x/image v0.26.0 // indirect
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golang.org/x/sync v0.13.0 // indirect
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golang.org/x/sys v0.32.0 // indirect
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)

go.sum

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github.com/ebitengine/gomobile v0.0.0-20250209143333-6071a2a2351c h1:nCxkoQoJMcVLc5aoMp3ULbfyEMcQjxopBKgNQVBQFXE=
2+
github.com/ebitengine/gomobile v0.0.0-20250209143333-6071a2a2351c/go.mod h1:yMh1VvLL71zDgHlVlIXXJIGmv36QcJ9ZD2gtIGYAp3I=
3+
github.com/ebitengine/hideconsole v1.0.0 h1:5J4U0kXF+pv/DhiXt5/lTz0eO5ogJ1iXb8Yj1yReDqE=
4+
github.com/ebitengine/hideconsole v1.0.0/go.mod h1:hTTBTvVYWKBuxPr7peweneWdkUwEuHuB3C1R/ielR1A=
5+
github.com/ebitengine/purego v0.8.2 h1:jPPGWs2sZ1UgOSgD2bClL0MJIqu58nOmIcBuXr62z1I=
6+
github.com/ebitengine/purego v0.8.2/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
7+
github.com/hajimehoshi/ebiten/v2 v2.8.8 h1:xyMxOAn52T1tQ+j3vdieZ7auDBOXmvjUprSrxaIbsi8=
8+
github.com/hajimehoshi/ebiten/v2 v2.8.8/go.mod h1:durJ05+OYnio9b8q0sEtOgaNeBEQG7Yr7lRviAciYbs=
9+
github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
10+
github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
11+
golang.org/x/exp/shiny v0.0.0-20230817173708-d852ddb80c63 h1:3AGKexOYqL+ztdWdkB1bDwXgPBuTS/S8A4WzuTvJ8Cg=
12+
golang.org/x/exp/shiny v0.0.0-20230817173708-d852ddb80c63/go.mod h1:UH99kUObWAZkDnWqppdQe5ZhPYESUw8I0zVV1uWBR+0=
13+
golang.org/x/image v0.26.0 h1:4XjIFEZWQmCZi6Wv8BoxsDhRU3RVnLX04dToTDAEPlY=
14+
golang.org/x/image v0.26.0/go.mod h1:lcxbMFAovzpnJxzXS3nyL83K27tmqtKzIJpctK8YO5c=
15+
golang.org/x/mobile v0.0.0-20250408133729-978277e7eaf7 h1:8MGTx39304caZ/OMsjPfuxUoDGI2tRas92F5x97tIYc=
16+
golang.org/x/mobile v0.0.0-20250408133729-978277e7eaf7/go.mod h1:ftACcHgQ7vaOnQbHOHvXt9Y6bEPHrs5Ovk67ClwrPJA=
17+
golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610=
18+
golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
19+
golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20=
20+
golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=

internal/entities/platform.go

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package entities
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3+
import (
4+
"image/color"
5+
6+
"github.com/hajimehoshi/ebiten/v2"
7+
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
8+
)
9+
10+
// Platform represents a solid platform in the game world
11+
type Platform struct {
12+
X, Y float64
13+
Width, Height float64
14+
Color color.RGBA
15+
}
16+
17+
// NewPlatform creates a new platform entity
18+
func NewPlatform(x, y, width, height float64, color color.RGBA) *Platform {
19+
return &Platform{
20+
X: x,
21+
Y: y,
22+
Width: width,
23+
Height: height,
24+
Color: color,
25+
}
26+
}
27+
28+
// Draw draws the platform
29+
func (p *Platform) Draw(screen *ebiten.Image) {
30+
ebitenutil.DrawRect(screen, p.X, p.Y, p.Width, p.Height, p.Color)
31+
}

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