commit a4e11a8830526c8c9a57f992dfc60096a546b1a8 Author: Trevor Slocum Date: Sat Jun 11 01:46:36 2022 -0700 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea56e15 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +cozy-fishing +cozy-people +dist diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..be3f7b2 --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..056948e --- /dev/null +++ b/README.md @@ -0,0 +1,42 @@ +# Fish Fight Back +[![Donate via LiberaPay](https://img.shields.io/liberapay/receives/rocketnine.space.svg?logo=liberapay)](https://liberapay.com/rocketnine.space) +[![Donate via Patreon](https://img.shields.io/badge/dynamic/json?color=%23e85b46&label=Patreon&query=data.attributes.patron_count&suffix=%20patrons&url=https%3A%2F%2Fwww.patreon.com%2Fapi%2Fcampaigns%2F5252223)](https://www.patreon.com/rocketnine) + +[Bullet hell](https://en.wikipedia.org/wiki/Shoot_%27em_up#Bullet_hell) video game featuring fishy revenge + +This game was created for the [Mini Jam 108](https://itch.io/jam/mini-jam-108-seaside) game jam. + +## Play + +### Browser + +[**Play in your browser**](https://rocketnine.itch.io/fishfightback) + +### Compile + +**Note:** The following assets are required to compile Fish Fight Back: +- [Cozy Fishing](https://shubibubi.itch.io/cozy-fishing) at `/asset/image/cozy-fishing/` +- [Cozy People](https://shubibubi.itch.io/cozy-people) at `/asset/image/cozy-people/` + +These assets are not free, and are not included in this repository. + +Install the dependencies listed for [your platform](https://github.com/hajimehoshi/ebiten/blob/main/README.md#platforms), +then run the following command: + +`go install code.rocketnine.space/tslocum/fishfightback@latest` + +Run `~/go/bin/fishfightback` to play. + +## Support + +Please share issues and suggestions [here](https://code.rocketnine.space/tslocum/fishfightback/issues). + +## Credits + +- [Trevor Slocum](https://rocketnine.space) - Game design and programming +- [node punk](https://open.spotify.com/artist/15eFpWQPNRxB89PnFNWvjU?si=z-jfVwYHTxugaC-BGZiyNg) - Music + +## Dependencies + +- [ebiten](https://github.com/hajimehoshi/ebiten) - Game engine +- [gohan](https://code.rocketnine.space/tslocum/gohan) - Entity Component System framework diff --git a/asset/asset.go b/asset/asset.go new file mode 100644 index 0000000..1c88b8c --- /dev/null +++ b/asset/asset.go @@ -0,0 +1,166 @@ +package asset + +import ( + "bytes" + "embed" + "image" + "image/color" + _ "image/png" + "io" + + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/audio" + "github.com/hajimehoshi/ebiten/v2/audio/vorbis" + "github.com/hajimehoshi/ebiten/v2/audio/wav" +) + +const sampleRate = 44100 + +//go:embed image +var FS embed.FS + +var ImgWhiteSquare = ebiten.NewImage(8, 8) +var ImgBlackSquare = ebiten.NewImage(8, 8) + +var ( + ImgBat = FishImage(7) + ImgBatBroken1 = FishTileAt(1) + ImgBatBroken2 = FishTileAt(2) + + ImgWater = newWaterImage() + + ImgFish = LoadImage("image/cozy-fishing/global.png") + + ImgFishParrot = FishImage(1) + ImgFishMackarel = FishImage(2) + ImgFishClown = FishImage(3) + ImgFishPlaice = FishImage(4) +) + +func init() { + ImgWhiteSquare.Fill(color.White) + ImgBlackSquare.Fill(color.Black) +} + +func newWaterImage() *ebiten.Image { + img := ebiten.NewImage(16, 16) + img.Fill(color.RGBA{96, 160, 168, 255}) + return img +} + +func LoadSounds(ctx *audio.Context) { + // TODO +} + +func LoadImage(p string) *ebiten.Image { + f, err := FS.Open(p) + if err != nil { + panic(err) + } + defer f.Close() + + baseImg, _, err := image.Decode(f) + if err != nil { + panic(err) + } + + return ebiten.NewImageFromImage(baseImg) +} + +func LoadBytes(p string) []byte { + b, err := FS.ReadFile(p) + if err != nil { + panic(err) + } + return b +} + +func LoadWAV(context *audio.Context, p string) *audio.Player { + f, err := FS.Open(p) + if err != nil { + panic(err) + } + defer f.Close() + + stream, err := wav.DecodeWithSampleRate(sampleRate, f) + if err != nil { + panic(err) + } + + player, err := context.NewPlayer(stream) + if err != nil { + panic(err) + } + + // Workaround to prevent delays when playing for the first time. + player.SetVolume(0) + player.Play() + player.Pause() + player.Rewind() + player.SetVolume(1) + + return player +} + +func LoadOGG(context *audio.Context, p string, loop bool) *audio.Player { + b := LoadBytes(p) + + stream, err := vorbis.DecodeWithSampleRate(sampleRate, bytes.NewReader(b)) + if err != nil { + panic(err) + } + + var s io.Reader + if loop { + s = audio.NewInfiniteLoop(stream, stream.Length()) + } else { + s = stream + } + + player, err := context.NewPlayer(s) + if err != nil { + panic(err) + } + + // Workaround to prevent delays when playing for the first time. + player.SetVolume(0) + player.Play() + player.Pause() + player.Rewind() + player.SetVolume(1) + + return player +} + +func FishTileAt(i int) *ebiten.Image { + const tileSize = 16 + const tilesetWidth = 56 + + x, y := i%tilesetWidth, i/tilesetWidth + + r := image.Rect(x*tileSize, y*tileSize, (x+1)*tileSize, (y+1)*tileSize) + + return ImgFish.SubImage(r).(*ebiten.Image) +} + +func FishTileXY(x, y int) *ebiten.Image { + const tileSize = 16 + const tilesetWidth = 56 + + r := image.Rect(x*tileSize, y*tileSize, (x+1)*tileSize, (y+1)*tileSize) + + return ImgFish.SubImage(r).(*ebiten.Image) +} + +func FishImage(i int) *ebiten.Image { + const tileSize = 16 + const fishTilesetWidth = 10 + + x, y := i%fishTilesetWidth, i/fishTilesetWidth + + x += 46 + + r := image.Rect(x*tileSize, y*tileSize, (x+1)*tileSize, (y+1)*tileSize) + + return ImgFish.SubImage(r).(*ebiten.Image) +} diff --git a/component/creep.go b/component/creep.go new file mode 100644 index 0000000..e1adca8 --- /dev/null +++ b/component/creep.go @@ -0,0 +1,30 @@ +package component + +import ( + "math/rand" +) + +type Creep struct { + Type int + Active bool + + Health int + FireAmount int + FireRate int // In ticks + FireTicks int //Ticks until next action + + Movement int + Movements [][3]float64 // X, Y, pre-delay in ticks + MovementTicks int // Ticks until next action + + DamageTicks int + + Rand *rand.Rand +} + +const ( + CreepSnowblower = iota + 1 + CreepSmallRock + CreepMediumRock + CreepLargeRock +) diff --git a/component/creepbullet.go b/component/creepbullet.go new file mode 100644 index 0000000..8cc024e --- /dev/null +++ b/component/creepbullet.go @@ -0,0 +1,5 @@ +package component + +type CreepBullet struct { + Invulnerable bool // Invulnerable to hazards +} diff --git a/component/playerbullet.go b/component/playerbullet.go new file mode 100644 index 0000000..1092100 --- /dev/null +++ b/component/playerbullet.go @@ -0,0 +1,4 @@ +package component + +type PlayerBullet struct { +} diff --git a/component/position.go b/component/position.go new file mode 100644 index 0000000..efec6ed --- /dev/null +++ b/component/position.go @@ -0,0 +1,6 @@ +package component + +type Position struct { + X, Y float64 + Z int +} diff --git a/component/rail.go b/component/rail.go new file mode 100644 index 0000000..727d45b --- /dev/null +++ b/component/rail.go @@ -0,0 +1,5 @@ +package component + +// Rail is a component added to all entities which should move along the rail with the camera. +type Rail struct { +} diff --git a/component/sprite.go b/component/sprite.go new file mode 100644 index 0000000..31174ed --- /dev/null +++ b/component/sprite.go @@ -0,0 +1,30 @@ +package component + +import ( + "time" + + "github.com/hajimehoshi/ebiten/v2" +) + +type Sprite struct { + Image *ebiten.Image + HorizontalFlip bool + VerticalFlip bool + DiagonalFlip bool // TODO unimplemented + + Angle float64 + + Overlay *ebiten.Image + OverlayX, OverlayY float64 // Overlay offset + + Frame int + Frames []*ebiten.Image + FrameTime time.Duration + LastFrame time.Time + NumFrames int + + DamageTicks int + + OverrideColorScale bool + ColorScale float64 +} diff --git a/component/velocity.go b/component/velocity.go new file mode 100644 index 0000000..61c63a8 --- /dev/null +++ b/component/velocity.go @@ -0,0 +1,5 @@ +package component + +type Velocity struct { + X, Y float64 +} diff --git a/component/weapon.go b/component/weapon.go new file mode 100644 index 0000000..13e1ad7 --- /dev/null +++ b/component/weapon.go @@ -0,0 +1,13 @@ +package component + +type Weapon struct { + Equipped bool + + Damage int + + // In ticks + FireRate int + NextFire int + + BulletSpeed float64 +} diff --git a/entity/creep.go b/entity/creep.go new file mode 100644 index 0000000..b4a793e --- /dev/null +++ b/entity/creep.go @@ -0,0 +1,50 @@ +package entity + +import ( + "math/rand" + "sync" + + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/level" + "code.rocketnine.space/tslocum/gohan" +) + +var newestCreepID int64 +var creepIDLock sync.Mutex + +func newCreepID() int64 { + creepIDLock.Lock() + defer creepIDLock.Unlock() + + newestCreepID++ + return newestCreepID +} + +func NewCreep(creepType int, x, y float64) gohan.Entity { + creepID := newCreepID() + + creep := gohan.NewEntity() + + creep.AddComponent(&component.Position{ + X: x, + Y: y, + Z: level.LayerCreep, + }) + + creep.AddComponent(&component.Sprite{ + Image: asset.ImgBat, + }) + + creep.AddComponent(&component.Rail{}) + + creep.AddComponent(&component.Creep{ + Type: creepType, + Health: 32, + FireAmount: 2, + FireRate: 144 * 1, + Rand: rand.New(rand.NewSource(creepID)), + }) + + return creep +} diff --git a/entity/creepbullet.go b/entity/creepbullet.go new file mode 100644 index 0000000..8720ad6 --- /dev/null +++ b/entity/creepbullet.go @@ -0,0 +1,31 @@ +package entity + +import ( + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/level" + "code.rocketnine.space/tslocum/gohan" +) + +func NewCreepBullet(x, y, xSpeed, ySpeed float64) gohan.Entity { + bullet := gohan.NewEntity() + + bullet.AddComponent(&component.Position{ + X: x, + Y: y, + Z: level.LayerBullet, + }) + + bullet.AddComponent(&component.Velocity{ + X: xSpeed, + Y: ySpeed, + }) + + bullet.AddComponent(&component.Sprite{ + Image: asset.ImgWhiteSquare, + }) + + bullet.AddComponent(&component.CreepBullet{}) + + return bullet +} diff --git a/entity/player.go b/entity/player.go new file mode 100644 index 0000000..7885e50 --- /dev/null +++ b/entity/player.go @@ -0,0 +1,33 @@ +package entity + +import ( + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/level" + "code.rocketnine.space/tslocum/gohan" +) + +func NewPlayer() gohan.Entity { + player := gohan.NewEntity() + + player.AddComponent(&component.Position{ + Z: level.LayerPlayer, + }) + + player.AddComponent(&component.Velocity{}) + + weapon := &component.Weapon{ + Damage: 1, + FireRate: 144 / 16, + BulletSpeed: 8, + } + player.AddComponent(weapon) + + player.AddComponent(&component.Sprite{ + Image: asset.ImgBat, + }) + + player.AddComponent(&component.Rail{}) + + return player +} diff --git a/entity/playerbullet.go b/entity/playerbullet.go new file mode 100644 index 0000000..deca7b0 --- /dev/null +++ b/entity/playerbullet.go @@ -0,0 +1,31 @@ +package entity + +import ( + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/level" + "code.rocketnine.space/tslocum/gohan" +) + +func NewPlayerBullet(x, y, xSpeed, ySpeed float64) gohan.Entity { + bullet := gohan.NewEntity() + + bullet.AddComponent(&component.Position{ + X: x, + Y: y, + Z: level.LayerBullet, + }) + + bullet.AddComponent(&component.Velocity{ + X: xSpeed, + Y: ySpeed, + }) + + bullet.AddComponent(&component.Sprite{ + Image: asset.ImgBlackSquare, + }) + + bullet.AddComponent(&component.PlayerBullet{}) + + return bullet +} diff --git a/flags.go b/flags.go new file mode 100644 index 0000000..5a8bff1 --- /dev/null +++ b/flags.go @@ -0,0 +1,31 @@ +//go:build !js || !wasm +// +build !js !wasm + +package main + +import ( + "flag" + + "code.rocketnine.space/tslocum/fishfightback/world" + "github.com/hajimehoshi/ebiten/v2" +) + +func parseFlags() { + var ( + fullscreen bool + noSplash bool + ) + flag.BoolVar(&fullscreen, "fullscreen", false, "run in fullscreen mode") + flag.BoolVar(&noSplash, "no-splash", false, "skip splash screen") + flag.IntVar(&world.World.Debug, "debug", 0, "print debug information") + flag.Parse() + + if fullscreen { + ebiten.SetFullscreen(true) + } + + if noSplash || world.World.Debug > 0 { + world.StartGame() + //world.World.MessageVisible = false + } +} diff --git a/flags_web.go b/flags_web.go new file mode 100644 index 0000000..f0f70e8 --- /dev/null +++ b/flags_web.go @@ -0,0 +1,15 @@ +//go:build js && wasm +// +build js,wasm + +package main + +import ( + "code.rocketnine.space/tslocum/fishfightback/world" + "github.com/hajimehoshi/ebiten/v2" +) + +func parseFlags() { + world.World.DisableEsc = true + + ebiten.SetFullscreen(true) +} diff --git a/game/game.go b/game/game.go new file mode 100644 index 0000000..45865ab --- /dev/null +++ b/game/game.go @@ -0,0 +1,177 @@ +package game + +import ( + "image/color" + "math/rand" + "os" + "sync" + "time" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/entity" + + "code.rocketnine.space/tslocum/gohan" + + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/system" + "code.rocketnine.space/tslocum/fishfightback/world" + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/audio" +) + +const sampleRate = 44100 + +// game is an isometric demo game. +type game struct { + audioContext *audio.Context + + op *ebiten.DrawImageOptions + + disableEsc bool + + debugMode bool + cpuProfile *os.File + + movementSystem *system.MovementSystem + + addedSystems bool + + nextSectionX float64 + + sectionA *world.Section + sectionB *world.Section + + firstSectionB bool + + sync.Mutex +} + +// NewGame returns a new isometric demo game. +func NewGame() (*game, error) { + g := &game{ + audioContext: audio.NewContext(sampleRate), + op: &ebiten.DrawImageOptions{}, + } + + err := g.loadAssets() + if err != nil { + panic(err) + } + + const numEntities = 5000 // TODO tweak + gohan.Preallocate(numEntities) + + g.sectionA = world.NewSection(0, 0) + g.sectionB = world.NewSection(0, 0) + + return g, nil +} + +func (g *game) tileToGameCoords(x, y int) (float64, float64) { + return float64(x) * 32, float64(y) * 32 +} + +// Layout is called when the game's layout changes. +func (g *game) Layout(_, _ int) (int, int) { + return world.ScreenWidth, world.ScreenHeight +} + +func (g *game) Update() error { + if ebiten.IsWindowBeingClosed() { + g.Exit() + return nil + } + + if world.World.ResetGame { + world.Reset() + + if !g.addedSystems { + g.addSystems() + + g.addedSystems = true + + if world.World.Player == 0 { + world.World.Player = entity.NewPlayer() + } + + const playerStartOffset = 128 + const camStartOffset = 480 + + /* w := float64(world.World.Map.Width * world.World.Map.TileWidth) + h := float64(world.World.Map.Height * world.World.Map.TileHeight)*/ + + world.World.Player.With(func(position *component.Position) { + //position.X, position.Y = w/2, h-playerStartOffset + + position.X, position.Y = 200, 3500 + }) + + world.World.CamX, world.World.CamY = 1, 3700-camStartOffset + } + + // TODO Seed is configurable + rand.Seed(time.Now().UnixNano()) + + world.World.ResetGame = false + world.World.GameOver = false + } + + world.World.Tick++ + + // Generate next section by repositioning and regenerating previous section. + if world.World.CamX+world.ScreenWidth >= g.nextSectionX { + s := g.sectionA + if g.firstSectionB { + s = g.sectionB + } + + s.SetPosition(g.nextSectionX, world.World.CamY) + s.Regenerate() + + g.nextSectionX += world.SectionWidth + g.firstSectionB = !g.firstSectionB + } + + err := gohan.Update() + if err != nil { + return err + } + return nil +} + +func (g *game) Draw(screen *ebiten.Image) { + err := gohan.Draw(screen) + if err != nil { + panic(err) + } +} + +func (g *game) addSystems() { + g.movementSystem = system.NewMovementSystem() + + gohan.AddSystem(system.NewPlayerMoveSystem(world.World.Player, g.movementSystem)) + gohan.AddSystem(system.NewplayerFireSystem()) + gohan.AddSystem(g.movementSystem) + gohan.AddSystem(system.NewCreepSystem()) + gohan.AddSystem(system.NewCameraSystem()) + gohan.AddSystem(system.NewRailSystem()) + + const layers = 8 + for i := 0; i > -layers; i-- { + gohan.AddSystem(system.NewRenderSystem(i)) + } + + gohan.AddSystem(system.NewRenderMessageSystem()) + gohan.AddSystem(system.NewRenderDebugTextSystem(world.World.Player)) + gohan.AddSystem(system.NewProfileSystem(world.World.Player)) +} + +func (g *game) loadAssets() error { + asset.ImgWhiteSquare.Fill(color.White) + asset.LoadSounds(g.audioContext) + return nil +} + +func (g *game) Exit() { + os.Exit(0) +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..2bde788 --- /dev/null +++ b/go.mod @@ -0,0 +1,23 @@ +module code.rocketnine.space/tslocum/fishfightback + +go 1.17 + +require ( + code.rocketnine.space/tslocum/gohan v0.0.0-20220611080547-c66dd322f959 + github.com/hajimehoshi/ebiten/v2 v2.3.3 + github.com/lafriks/go-tiled v0.7.0 +) + +require ( + github.com/go-gl/glfw/v3.3/glfw v0.0.0-20220516021902-eb3e265c7661 // indirect + github.com/gofrs/flock v0.8.1 // indirect + github.com/hajimehoshi/oto/v2 v2.1.0 // indirect + github.com/jezek/xgb v1.0.1 // indirect + github.com/jfreymuth/oggvorbis v1.0.3 // indirect + github.com/jfreymuth/vorbis v1.0.2 // indirect + golang.org/x/exp/shiny v0.0.0-20220609121020-a51bd0440498 // indirect + golang.org/x/image v0.0.0-20220601225756-64ec528b34cd // indirect + golang.org/x/mobile v0.0.0-20220518205345-8578da9835fd // indirect + golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect + golang.org/x/sys v0.0.0-20220610221304-9f5ed59c137d // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..9e94e85 --- /dev/null +++ b/go.sum @@ -0,0 +1,105 @@ +code.rocketnine.space/tslocum/gohan v0.0.0-20220611080547-c66dd322f959 h1:gxih+XUGSZbhDAedXqrtJPBBHODDQMl9mBKbHmhFr4Y= +code.rocketnine.space/tslocum/gohan v0.0.0-20220611080547-c66dd322f959/go.mod h1:Z8otqLKIINu0nowsu2IidBFe6M0GkVmGBhP2T4FNKQY= +github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= +github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= +github.com/davecgh/go-spew v1.1.0/go.mod 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v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/goreleaser.yml b/goreleaser.yml new file mode 100644 index 0000000..7507973 --- /dev/null +++ b/goreleaser.yml @@ -0,0 +1,29 @@ +project_name: fishfightback + +builds: + - + id: fishfightback + goos: + - js + - linux + - windows + goarch: + - amd64 + - wasm +archives: + - + id: fishfightback + builds: + - fishfightback + replacements: + 386: i386 + format_overrides: + - goos: js + format: zip + - goos: windows + format: zip + files: + - ./*.md + - LICENSE +checksum: + name_template: 'checksums.txt' diff --git a/level/level.go b/level/level.go new file mode 100644 index 0000000..eb8ba4f --- /dev/null +++ b/level/level.go @@ -0,0 +1,12 @@ +package level + +const ( + LayerDefault = 0 - iota + LayerSea + LayerLand + LayerBuilding + LayerDecoration + LayerCreep + LayerBullet + LayerPlayer +) diff --git a/main.go b/main.go new file mode 100644 index 0000000..4d85064 --- /dev/null +++ b/main.go @@ -0,0 +1,48 @@ +package main + +import ( + "log" + "os" + "os/signal" + "syscall" + + "code.rocketnine.space/tslocum/fishfightback/game" + "code.rocketnine.space/tslocum/fishfightback/world" + "github.com/hajimehoshi/ebiten/v2" +) + +func main() { + ebiten.SetWindowTitle("Fish Fight Back") + ebiten.SetWindowResizable(true) + // ebiten.SetFullscreen(true) // TODO + ebiten.SetWindowSize(world.ScreenWidth, world.ScreenHeight) + ebiten.SetMaxTPS(144) + ebiten.SetRunnableOnUnfocused(true) // Note - this currently does nothing in ebiten + ebiten.SetWindowClosingHandled(true) + ebiten.SetFPSMode(ebiten.FPSModeVsyncOn) + ebiten.SetCursorMode(ebiten.CursorModeHidden) + + g, err := game.NewGame() + if err != nil { + log.Fatal(err) + } + + parseFlags() + + sigc := make(chan os.Signal, 1) + signal.Notify(sigc, + syscall.SIGINT, + syscall.SIGTERM) + go func() { + <-sigc + + g.Exit() + }() + + world.StartGame() + + err = ebiten.RunGame(g) + if err != nil { + log.Fatal(err) + } +} diff --git a/system/camera.go b/system/camera.go new file mode 100644 index 0000000..9e2cce7 --- /dev/null +++ b/system/camera.go @@ -0,0 +1,42 @@ +package system + +import ( + "math" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +const CameraMoveSpeed = 0.25 + +type CameraSystem struct { + Weapon *component.Weapon + Position *component.Position +} + +func NewCameraSystem() *CameraSystem { + s := &CameraSystem{} + + return s +} + +func (s *CameraSystem) Update(e gohan.Entity) error { + if !world.World.GameStarted || world.World.GameOver { + return nil + } + + world.World.CamMoving = world.World.CamX > 0 + if world.World.CamMoving { + world.World.CamX += CameraMoveSpeed + } else { + world.SetMessage("GAME OVER\n\nYOU WIN!", math.MaxInt) + world.World.GameOver = true + } + return nil +} + +func (_ *CameraSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/creep.go b/system/creep.go new file mode 100644 index 0000000..d5f2b40 --- /dev/null +++ b/system/creep.go @@ -0,0 +1,109 @@ +package system + +import ( + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/entity" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +// pause time, screen X, screen Y +type CreepSystem struct { + Creep *component.Creep + Position *component.Position + + Sprite *component.Sprite `gohan:"?"` + Weapon *component.Weapon `gohan:"?"` +} + +func NewCreepSystem() *CreepSystem { + s := &CreepSystem{} + + return s +} + +func (s *CreepSystem) Update(e gohan.Entity) error { + if !world.World.GameStarted { + return nil + } + + creep := s.Creep + position := s.Position + + if creep.Health <= 0 { + return nil + } + + // Skip inactive creeps. + sx, sy := world.LevelCoordinatesToScreen(position.X, position.Y) + inactive := sx < 0 || sy < 0 || sx > float64(world.ScreenWidth) || sy > float64(world.ScreenHeight) + if creep.Active != !inactive { + creep.Active = !inactive + } + if inactive { + return nil + } + + l := len(creep.Movements) + if l > creep.Movement { + if creep.MovementTicks == 0 { + m := creep.Movements[creep.Movement] + position.X, position.Y = m[0], m[1] + creep.Movement++ + + creep.MovementTicks = int(m[2]) + } + creep.MovementTicks-- + } + + randVelocity := func() (float64, float64) { + for { + vx := creep.Rand.Float64()*0.5 + (0.5 - creep.Rand.Float64()) + vy := creep.Rand.Float64()*0.5 + (0.5 - creep.Rand.Float64()) + if vx > 0.5 || vx < -0.5 || vy > 0.5 || vy < -0.5 { + return vx, vy + } + } + } + + if creep.FireTicks == 0 { + for i := 0; i < creep.FireAmount; i++ { + vx, vy := randVelocity() + + if creep.Rand.Intn(2) == 0 { + vx *= -1 + } + if creep.Rand.Intn(2) == 0 { + vy *= -1 + } + entity.NewCreepBullet(position.X, position.Y, vx, vy) + } + creep.FireTicks = creep.FireRate + } + creep.FireTicks-- + + if creep.DamageTicks > 0 { + creep.DamageTicks-- + + sprite := s.Sprite + if sprite != nil { + if creep.DamageTicks > 0 { + if creep.DamageTicks%2 == 0 { + sprite.ColorScale = 100 + } else { + sprite.ColorScale = .01 + } + sprite.OverrideColorScale = true + } else { + sprite.OverrideColorScale = false + } + } + } + + return nil +} + +func (_ *CreepSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/input_fire.go b/system/input_fire.go new file mode 100644 index 0000000..7a2a090 --- /dev/null +++ b/system/input_fire.go @@ -0,0 +1,49 @@ +package system + +import ( + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/entity" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +const ( + fireSpeed = 1.5 +) + +type playerFireSystem struct { + Position *component.Position + Velocity *component.Velocity + Weapon *component.Weapon + Sprite *component.Sprite +} + +func NewplayerFireSystem() *playerFireSystem { + return &playerFireSystem{} +} + +func (s *playerFireSystem) Update(e gohan.Entity) error { + if !world.World.GameStarted || world.World.GameOver { + return nil + } + + position := s.Position + weapon := s.Weapon + + if ebiten.IsKeyPressed(ebiten.KeyZ) || ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) { + if weapon.NextFire == 0 { + entity.NewPlayerBullet(position.X-8, position.Y-8, 0, -weapon.BulletSpeed) + entity.NewPlayerBullet(position.X+8, position.Y-8, 0, -weapon.BulletSpeed) + weapon.NextFire = weapon.FireRate + } + } + if weapon.NextFire > 0 { + weapon.NextFire-- + } + return nil +} + +func (s *playerFireSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/input_move.go b/system/input_move.go new file mode 100644 index 0000000..4e65b78 --- /dev/null +++ b/system/input_move.go @@ -0,0 +1,117 @@ +package system + +import ( + "os" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/inpututil" +) + +const ( + moveSpeed = 1.0 +) + +type playerMoveSystem struct { + Position *component.Position + Velocity *component.Velocity + Weapon *component.Weapon + Sprite *component.Sprite + + player gohan.Entity + movement *MovementSystem + lastWalkDirL bool + + rewindTicks int + nextRewindTick int +} + +func NewPlayerMoveSystem(player gohan.Entity, m *MovementSystem) *playerMoveSystem { + return &playerMoveSystem{ + player: player, + movement: m, + } +} + +func (s *playerMoveSystem) Update(e gohan.Entity) error { + if ebiten.IsKeyPressed(ebiten.KeyEscape) && !world.World.DisableEsc { + os.Exit(0) + return nil + } + + if ebiten.IsKeyPressed(ebiten.KeyControl) && inpututil.IsKeyJustPressed(ebiten.KeyV) { + v := 1 + if ebiten.IsKeyPressed(ebiten.KeyShift) { + v = 2 + } + if world.World.Debug == v { + world.World.Debug = 0 + } else { + world.World.Debug = v + } + return nil + } + if ebiten.IsKeyPressed(ebiten.KeyControl) && inpututil.IsKeyJustPressed(ebiten.KeyN) { + world.World.NoClip = !world.World.NoClip + return nil + } + + if !world.World.GameStarted { + if ebiten.IsKeyPressed(ebiten.KeyEnter) || ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) { + world.StartGame() + } + return nil + } + + if world.World.GameOver { + if inpututil.IsKeyJustPressed(ebiten.KeyEnter) { + world.World.ResetGame = true + } + return nil + } + + pressLeft := ebiten.IsKeyPressed(ebiten.KeyLeft) || ebiten.IsKeyPressed(ebiten.KeyA) + pressRight := ebiten.IsKeyPressed(ebiten.KeyRight) || ebiten.IsKeyPressed(ebiten.KeyD) + pressUp := ebiten.IsKeyPressed(ebiten.KeyUp) || ebiten.IsKeyPressed(ebiten.KeyW) + pressDown := ebiten.IsKeyPressed(ebiten.KeyDown) || ebiten.IsKeyPressed(ebiten.KeyS) + + if (pressLeft && !pressRight) || + (pressRight && !pressLeft) { + if pressLeft { + s.Velocity.X = -moveSpeed + } else { + s.Velocity.X = moveSpeed + } + } else { + s.Velocity.X = 0 + } + + if (pressUp && !pressDown) || + (pressDown && !pressUp) { + if pressUp { + s.Velocity.Y = -moveSpeed + } else { + s.Velocity.Y = moveSpeed + } + } else { + s.Velocity.Y = 0 + } + return nil +} + +func (s *playerMoveSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} + +func deltaXY(x1, y1, x2, y2 float64) (dx float64, dy float64) { + dx, dy = x1-x2, y1-y2 + if dx < 0 { + dx *= -1 + } + if dy < 0 { + dy *= -1 + } + return dx, dy +} diff --git a/system/input_profile.go b/system/input_profile.go new file mode 100644 index 0000000..d94f47a --- /dev/null +++ b/system/input_profile.go @@ -0,0 +1,60 @@ +package system + +import ( + "os" + "path" + "runtime" + "runtime/pprof" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/inpututil" +) + +type profileSystem struct { + Weapon *component.Weapon + + player gohan.Entity + cpuProfile *os.File +} + +func NewProfileSystem(player gohan.Entity) *profileSystem { + return &profileSystem{ + player: player, + } +} + +func (s *profileSystem) Update(_ gohan.Entity) error { + if ebiten.IsKeyPressed(ebiten.KeyControl) && inpututil.IsKeyJustPressed(ebiten.KeyP) { + if s.cpuProfile == nil { + runtime.SetCPUProfileRate(1000) + + homeDir, err := os.UserHomeDir() + if err != nil { + return err + } + + s.cpuProfile, err = os.Create(path.Join(homeDir, "bbbb.prof")) + if err != nil { + return err + } + + err = pprof.StartCPUProfile(s.cpuProfile) + if err != nil { + return err + } + } else { + pprof.StopCPUProfile() + + s.cpuProfile.Close() + s.cpuProfile = nil + + } + } + return nil +} + +func (s *profileSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/movement.go b/system/movement.go new file mode 100644 index 0000000..b54a028 --- /dev/null +++ b/system/movement.go @@ -0,0 +1,165 @@ +package system + +import ( + "image" + "image/color" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +const rewindThreshold = 1 + +type MovementSystem struct { + Position *component.Position + Velocity *component.Velocity + + Creep *component.Creep `gohan:"?"` + CreepBullet *component.CreepBullet `gohan:"?"` + PlayerBullet *component.PlayerBullet `gohan:"?"` + Sprite *component.Sprite `gohan:"?"` +} + +func NewMovementSystem() *MovementSystem { + s := &MovementSystem{} + + return s +} + +func drawDebugRect(r image.Rectangle, c color.Color, overrideColorScale bool) gohan.Entity { + rectEntity := gohan.NewEntity() + + rectImg := ebiten.NewImage(r.Dx(), r.Dy()) + rectImg.Fill(c) + + rectEntity.AddComponent(&component.Position{ + X: float64(r.Min.X), + Y: float64(r.Min.Y), + }) + + rectEntity.AddComponent(&component.Sprite{ + Image: rectImg, + OverrideColorScale: overrideColorScale, + }) + + return rectEntity +} + +func (s *MovementSystem) Update(e gohan.Entity) error { + if !world.World.GameStarted { + return nil + } + + if world.World.GameOver && e == world.World.Player { + return nil + } + + position := s.Position + velocity := s.Velocity + + vx, vy := velocity.X, velocity.Y + if e == world.World.Player && (world.World.NoClip || world.World.Debug != 0) && ebiten.IsKeyPressed(ebiten.KeyShift) { + vx, vy = vx*2, vy*2 + } + + position.X, position.Y = position.X+vx, position.Y+vy + + // Force player to remain within the screen bounds. + // TODO same for bullets + if e == world.World.Player { + screenX, screenY := s.levelCoordinatesToScreen(position.X, position.Y) + if screenX < 0 { + diff := screenX / world.World.CamScale + position.X -= diff + } else if screenX > float64(world.ScreenWidth)-world.World.PlayerWidth { + diff := (float64(world.ScreenWidth) - world.World.PlayerWidth - screenX) / world.World.CamScale + position.X += diff + } + if screenY < 0 { + diff := screenY / world.World.CamScale + position.Y -= diff + } else if screenY > float64(world.ScreenHeight)-world.World.PlayerHeight { + diff := (float64(world.ScreenHeight) - world.World.PlayerHeight - screenY) / world.World.CamScale + position.Y += diff + } + + world.World.PlayerX, world.World.PlayerY = position.X, position.Y + + // Check player hazard collision. + if world.World.NoClip { + return nil + } + /*playerRect := image.Rect(int(position.X), int(position.Y), int(position.X+world.World.PlayerWidth), int(position.Y+world.World.PlayerHeight)) + for _, r := range world.World.HazardRects { + if playerRect.Overlaps(r) { + world.World.SetGameOver() + return nil + } + }*/ + } + + // Check creepBullet collision. + if world.World.NoClip { + return nil + } + bulletSize := 8.0 + bulletRect := image.Rect(int(position.X), int(position.Y), int(position.X+bulletSize), int(position.Y+bulletSize)) + + creepBullet := s.CreepBullet + playerBullet := s.PlayerBullet + + // Check hazard collisions. + if creepBullet != nil || playerBullet != nil { + /* TODO + for _, hazardRect := range world.World.HazardRects { + if bulletRect.Overlaps(hazardRect) { + e.Remove() + return nil + } + } */ + } + + if creepBullet != nil { + playerRect := image.Rect(int(world.World.PlayerX), int(world.World.PlayerY), int(world.World.PlayerX+world.World.PlayerWidth), int(world.World.PlayerY+world.World.PlayerHeight)) + + // TODO if not god mode + if bulletRect.Overlaps(playerRect) { + world.World.SetGameOver() + } + return nil + } + + if playerBullet != nil { + /* TODO + var hitCreep bool + for i, creepRect := range world.World.CreepRects { + if bulletRect.Overlaps(creepRect) { + creepEntity := world.World.CreepEntities[i] + creepEntity.With(func(creep *component.Creep) { + if creep.Active { + creep.Health-- + creep.DamageTicks = 6 + hitCreep = true + } + }) + + if hitCreep { + e.Remove() + return nil + } + } + } */ + } + + return nil +} + +func (s *MovementSystem) levelCoordinatesToScreen(x, y float64) (float64, float64) { + return (x - world.World.CamX) * world.World.CamScale, (y - world.World.CamY) * world.World.CamScale +} + +func (_ *MovementSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/rail.go b/system/rail.go new file mode 100644 index 0000000..7444d3c --- /dev/null +++ b/system/rail.go @@ -0,0 +1,32 @@ +package system + +import ( + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +type RailSystem struct { + Rail *component.Rail + Position *component.Position +} + +func NewRailSystem() *RailSystem { + s := &RailSystem{} + + return s +} + +func (s *RailSystem) Update(e gohan.Entity) error { + if !world.World.GameStarted || world.World.GameOver || !world.World.CamMoving { + return nil + } + + s.Position.X += CameraMoveSpeed + return nil +} + +func (_ *RailSystem) Draw(_ gohan.Entity, _ *ebiten.Image) error { + return gohan.ErrUnregister +} diff --git a/system/render.go b/system/render.go new file mode 100644 index 0000000..7a46a0a --- /dev/null +++ b/system/render.go @@ -0,0 +1,141 @@ +package system + +import ( + _ "image/png" + "time" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +const ( + TileWidth = 32 + + logoText = "POWERED BY EBITEN" + logoTextScale = 4.75 + logoTextWidth = 6.0 * float64(len(logoText)) * logoTextScale + logoTime = 144 * 3.5 + + fadeInTime = 144 * 0.75 +) + +type RenderSystem struct { + Position *component.Position + Sprite *component.Sprite + + img *ebiten.Image `gohan:"-"` + op *ebiten.DrawImageOptions `gohan:"-"` + + camScale float64 `gohan:"-"` + + renderer gohan.Entity `gohan:"-"` + + z int +} + +func NewRenderSystem(z int) *RenderSystem { + s := &RenderSystem{ + renderer: gohan.NewEntity(), + img: ebiten.NewImage(320, 100), + op: &ebiten.DrawImageOptions{}, + camScale: 1, + z: z, // Only the specified z-level will be rendered by this system. + } + + return s +} + +func (s *RenderSystem) Update(_ gohan.Entity) error { + return gohan.ErrUnregister +} + +func (s *RenderSystem) levelCoordinatesToScreen(x, y float64) (float64, float64) { + px, py := world.World.CamX, world.World.CamY + py *= -1 + return ((x - px) * s.camScale), ((y + py) * s.camScale) +} + +// renderSprite renders a sprite on the screen. +func (s *RenderSystem) renderSprite(x float64, y float64, offsetx float64, offsety float64, angle float64, geoScale float64, colorScale float64, alpha float64, hFlip bool, vFlip bool, sprite *ebiten.Image, target *ebiten.Image) int { + if alpha < .01 || colorScale < .01 { + return 0 + } + + // Skip drawing off-screen tiles. + drawX, drawY := s.levelCoordinatesToScreen(x, y) + const padding = TileWidth * 4 + width, height := float64(TileWidth), float64(TileWidth) + left := drawX + right := drawX + width + top := drawY + bottom := drawY + height + if (left < -padding || left > float64(world.ScreenWidth)+padding) || (top < -padding || top > float64(world.ScreenHeight)+padding) || + (right < -padding || right > float64(world.ScreenWidth)+padding) || (bottom < -padding || bottom > float64(world.ScreenHeight)+padding) { + return 0 + } + + s.op.GeoM.Reset() + + if hFlip { + s.op.GeoM.Scale(-1, 1) + s.op.GeoM.Translate(TileWidth, 0) + } + if vFlip { + s.op.GeoM.Scale(1, -1) + s.op.GeoM.Translate(0, TileWidth) + } + + s.op.GeoM.Scale(geoScale, geoScale) + // Rotate + s.op.GeoM.Translate(offsetx, offsety) + s.op.GeoM.Rotate(angle) + // Move to current isometric position. + s.op.GeoM.Translate(x, y) + // Translate camera position. + s.op.GeoM.Translate(-world.World.CamX, -world.World.CamY) + // Zoom. + s.op.GeoM.Scale(s.camScale, s.camScale) + // Center. + //s.op.GeoM.Translate(float64(s.ScreenW/2.0), float64(s.ScreenH/2.0)) + + // Fade in. + if world.World.Tick < 72 { + colorScale = float64(world.World.Tick) / 72 + } + + s.op.ColorM.Scale(colorScale, colorScale, colorScale, alpha) + + target.DrawImage(sprite, s.op) + + s.op.ColorM.Reset() + + return 1 +} + +func (s *RenderSystem) Draw(e gohan.Entity, screen *ebiten.Image) error { + position := s.Position + sprite := s.Sprite + + if position.Z != s.z { + return nil + } + + if sprite.NumFrames > 0 && time.Since(sprite.LastFrame) > sprite.FrameTime { + sprite.Frame++ + if sprite.Frame >= sprite.NumFrames { + sprite.Frame = 0 + } + sprite.Image = sprite.Frames[sprite.Frame] + sprite.LastFrame = time.Now() + } + + colorScale := 1.0 + if sprite.OverrideColorScale { + colorScale = sprite.ColorScale + } + + s.renderSprite(position.X, position.Y, 0, 0, sprite.Angle, 1.0, colorScale, 1.0, sprite.HorizontalFlip, sprite.VerticalFlip, sprite.Image, screen) + return nil +} diff --git a/system/renderdebug.go b/system/renderdebug.go new file mode 100644 index 0000000..5fc15db --- /dev/null +++ b/system/renderdebug.go @@ -0,0 +1,51 @@ +package system + +import ( + "fmt" + "image/color" + _ "image/png" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/ebitenutil" +) + +type RenderDebugTextSystem struct { + Position *component.Position + Velocity *component.Velocity + Weapon *component.Weapon + + player gohan.Entity + op *ebiten.DrawImageOptions + debugImg *ebiten.Image +} + +func NewRenderDebugTextSystem(player gohan.Entity) *RenderDebugTextSystem { + s := &RenderDebugTextSystem{ + player: player, + op: &ebiten.DrawImageOptions{}, + debugImg: ebiten.NewImage(94, 114), + } + + return s +} + +func (s *RenderDebugTextSystem) Update(_ gohan.Entity) error { + return gohan.ErrUnregister +} + +func (s *RenderDebugTextSystem) Draw(e gohan.Entity, screen *ebiten.Image) error { + if world.World.Debug <= 0 { + return nil + } + + position := s.Position + velocity := s.Velocity + + s.debugImg.Fill(color.RGBA{0, 0, 0, 80}) + ebitenutil.DebugPrint(s.debugImg, fmt.Sprintf("POS %.0f,%.0f\nVEL %.2f,%.2f\nENT %d\nUPD %d\nDRA %d\nTPS %0.0f\nFPS %0.0f", position.X, position.Y, velocity.X, velocity.Y, gohan.CurrentEntities(), gohan.CurrentUpdates(), gohan.CurrentDraws(), ebiten.CurrentTPS(), ebiten.CurrentFPS())) + screen.DrawImage(s.debugImg, nil) + return nil +} diff --git a/system/rendermessage.go b/system/rendermessage.go new file mode 100644 index 0000000..da91a60 --- /dev/null +++ b/system/rendermessage.go @@ -0,0 +1,92 @@ +package system + +import ( + "image/color" + "strings" + + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/fishfightback/world" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" + "github.com/hajimehoshi/ebiten/v2/ebitenutil" +) + +type RenderMessageSystem struct { + Position *component.Position + Velocity *component.Velocity + Weapon *component.Weapon + + op *ebiten.DrawImageOptions + logoImg *ebiten.Image + msgImg *ebiten.Image + tmpImg *ebiten.Image +} + +func NewRenderMessageSystem() *RenderMessageSystem { + s := &RenderMessageSystem{ + op: &ebiten.DrawImageOptions{}, + logoImg: ebiten.NewImage(1, 1), + msgImg: ebiten.NewImage(1, 1), + tmpImg: ebiten.NewImage(200, 200), + } + + return s +} + +func (s *RenderMessageSystem) Update(_ gohan.Entity) error { + if !world.World.GameStarted || world.World.GameOver || !world.World.MessageVisible { + return nil + } + + world.World.MessageTicks++ + if world.World.MessageTicks == world.World.MessageDuration { + world.World.MessageVisible = false + return nil + } + return nil +} + +func (s *RenderMessageSystem) Draw(_ gohan.Entity, screen *ebiten.Image) error { + if !world.World.GameStarted || !world.World.MessageVisible { + return nil + } + + // Draw message. + if world.World.MessageUpdated { + s.drawMessage() + } + bounds := s.msgImg.Bounds() + x := (float64(world.ScreenWidth) / 2) - (float64(bounds.Dx()) / 2) + y := (float64(world.ScreenHeight) / 2) - (float64(bounds.Dy()) / 2) + s.op.GeoM.Reset() + s.op.GeoM.Translate(x, y) + screen.DrawImage(s.msgImg, s.op) + return nil +} + +func (s *RenderMessageSystem) drawMessage() { + split := strings.Split(world.World.MessageText, "\n") + width := 0 + for _, line := range split { + lineSize := len(line) * 12 + if lineSize > width { + width = lineSize + } + } + height := len(split) * 32 + + const padding = 8 + width, height = width+padding*2, height+padding*2 + + s.msgImg = ebiten.NewImage(width, height) + s.msgImg.Fill(color.RGBA{17, 17, 17, 255}) + + s.tmpImg.Clear() + s.tmpImg = ebiten.NewImage(width*2, height*2) + s.op.GeoM.Reset() + s.op.GeoM.Scale(2, 2) + s.op.GeoM.Translate(float64(padding), float64(padding)) + ebitenutil.DebugPrint(s.tmpImg, world.World.MessageText) + s.msgImg.DrawImage(s.tmpImg, s.op) + s.op.ColorM.Reset() +} diff --git a/world/building.go b/world/building.go new file mode 100644 index 0000000..b175a51 --- /dev/null +++ b/world/building.go @@ -0,0 +1,208 @@ +package world + +var buildingFishingShackA = [][][2]int{ + { + {23, 0}, + {24, 0}, + {25, 0}, + {26, 0}, + {27, 0}, + }, + { + {23, 1}, + {24, 1}, + {25, 1}, + {26, 1}, + {27, 1}, + }, + { + {23, 2}, + {24, 2}, + {25, 2}, + {26, 2}, + {27, 2}, + }, + { + {23, 3}, + {24, 3}, + {25, 3}, + {26, 3}, + {27, 3}, + }, +} + +var buildingFishingShackB = [][][2]int{ + { + {28, 0}, + {29, 0}, + {30, 0}, + {31, 0}, + {32, 0}, + }, + { + {28, 1}, + {29, 1}, + {30, 1}, + {31, 1}, + {32, 1}, + }, + { + {28, 2}, + {29, 2}, + {30, 2}, + {31, 2}, + {32, 2}, + }, + { + {28, 3}, + {29, 3}, + {30, 3}, + {31, 3}, + {32, 3}, + }, +} + +var buildingFishingShackC = [][][2]int{ + { + {33, 0}, + {34, 0}, + {35, 0}, + {36, 0}, + {37, 0}, + }, + { + {33, 1}, + {34, 1}, + {35, 1}, + {36, 1}, + {37, 1}, + }, + { + {33, 2}, + {34, 2}, + {35, 2}, + {36, 2}, + {37, 2}, + }, + { + {33, 3}, + {34, 3}, + {35, 3}, + {36, 3}, + {37, 3}, + }, +} + +var buildingBar = [][][2]int{ + { + {23, 6}, + {24, 6}, + {25, 6}, + {26, 6}, + {27, 6}, + }, + { + {23, 7}, + {24, 7}, + {25, 7}, + {26, 7}, + {27, 7}, + }, + { + {23, 8}, + {24, 8}, + {25, 8}, + {26, 8}, + {27, 8}, + }, + { + {23, 9}, + {24, 9}, + {25, 9}, + {26, 9}, + {27, 9}, + }, + { + {23, 10}, + {24, 10}, + {25, 10}, + {26, 10}, + {27, 10}, + }, +} + +var buildingCrabShackA = [][][2]int{ + { + {28, 6}, + {29, 6}, + {30, 6}, + {31, 6}, + {32, 6}, + }, + { + {28, 7}, + {29, 7}, + {30, 7}, + {31, 7}, + {32, 7}, + }, + { + {28, 8}, + {29, 8}, + {30, 8}, + {31, 8}, + {32, 8}, + }, + { + {28, 9}, + {29, 9}, + {30, 9}, + {31, 9}, + {32, 9}, + }, + { + {28, 10}, + {29, 10}, + {30, 10}, + {31, 10}, + {32, 10}, + }, +} + +var buildingCrabShackB = [][][2]int{ + { + {33, 6}, + {34, 6}, + {35, 6}, + {36, 6}, + {37, 6}, + }, + { + {33, 7}, + {34, 7}, + {35, 7}, + {36, 7}, + {37, 7}, + }, + { + {33, 8}, + {34, 8}, + {35, 8}, + {36, 8}, + {37, 8}, + }, + { + {33, 9}, + {34, 9}, + {35, 9}, + {36, 9}, + {37, 9}, + }, + { + {33, 10}, + {34, 10}, + {35, 10}, + {36, 10}, + {37, 10}, + }, +} diff --git a/world/section.go b/world/section.go new file mode 100644 index 0000000..0f7d62c --- /dev/null +++ b/world/section.go @@ -0,0 +1,167 @@ +package world + +import ( + "math/rand" + + "code.rocketnine.space/tslocum/fishfightback/entity" + + "code.rocketnine.space/tslocum/fishfightback/level" + + "code.rocketnine.space/tslocum/fishfightback/asset" + "code.rocketnine.space/tslocum/fishfightback/component" + "code.rocketnine.space/tslocum/gohan" + "github.com/hajimehoshi/ebiten/v2" +) + +// TODO tweak + +const SectionWidth = ScreenWidth + +type Section struct { + X float64 + Y float64 + + Entities []gohan.Entity +} + +func NewSection(x, y float64) *Section { + s := &Section{ + X: x, + Y: y, + } + + return s +} + +func (s *Section) SetPosition(x float64, y float64) { + s.X = x + s.Y = y +} + +func (s *Section) Regenerate() { + for _, e := range s.Entities { + e.Remove() + } + s.Entities = s.Entities[:0] + + maxShoreDepth := 2 + rand.Intn(5) + + // Fill with sea water. + // TODO optimize + for y := 0; y < ScreenHeight/16; y++ { + for x := 0; x < ScreenWidth/16; x++ { + e := gohan.NewEntity() + e.AddComponent(&component.Position{ + X: s.X + float64(x)*16, + Y: s.Y + float64(y)*16, + Z: level.LayerSea, + }) + e.AddComponent(&component.Sprite{ + Image: asset.ImgWater, + }) + + s.Entities = append(s.Entities, e) + } + } + + // Generate land. + var tile *ebiten.Image + for y := 0; y < maxShoreDepth; y++ { + for x := 0; x < SectionWidth/16; x++ { + if y == maxShoreDepth-1 { + tile = asset.FishTileXY(1, 14) + } else { + switch rand.Intn(4) { + case 0: + tile = asset.FishTileXY(5, 9) + case 1: + tile = asset.FishTileXY(6, 9) + case 2: + tile = asset.FishTileXY(5, 10) + case 3: + tile = asset.FishTileXY(6, 10) + } + } + + e := gohan.NewEntity() + e.AddComponent(&component.Position{ + X: s.X + float64(x)*16, + Y: s.Y + float64(y)*16, + Z: level.LayerLand, + }) + e.AddComponent(&component.Sprite{ + Image: tile, + }) + + s.Entities = append(s.Entities, e) + } + } + + // Generate buildings. + + // TODO bag of random buildings + + addBuildings := rand.Intn(7) + + nextX := s.X + for j := 0; j < addBuildings; j++ { + building := buildingFishingShackA + switch rand.Intn(6) { + case 0: + building = buildingFishingShackB + case 1: + building = buildingFishingShackC + case 2: + building = buildingBar + case 3: + building = buildingCrabShackA + case 4: + building = buildingCrabShackB + } + buildingHeight := len(building) + buildingWidth := len(building[0]) + + remaining := SectionWidth - int(nextX-s.X) - buildingWidth*16 + if remaining <= 0 { + break + } + + var bx, by float64 + const attempts = 3 + const buffer = 50.0 + for attempt := 0; attempt < attempts; attempt++ { + bx, by = nextX+float64(rand.Intn(remaining)), s.Y+float64(rand.Intn(maxShoreDepth*16)-buildingHeight*16)-12 + if bx-nextX >= buffer { + break + } + } + + s.build(building, bx, by, level.LayerBuilding) + + nextX = bx + float64(buildingWidth*16) + } + + for i := 0; i < 10; i++ { + x, y := s.X+float64(i)*16, s.Y+100 + creep := entity.NewCreep(0, x, y) + + s.Entities = append(s.Entities, creep) + } +} + +func (s *Section) build(tiles [][][2]int, x, y float64, z int) { + for ty := range tiles { + for tx, tile := range tiles[ty] { + e := gohan.NewEntity() + e.AddComponent(&component.Position{ + X: x + float64(tx)*16, + Y: y + float64(ty)*16, + Z: z, + }) + e.AddComponent(&component.Sprite{ + Image: asset.FishTileXY(tile[0], tile[1]), + }) + s.Entities = append(s.Entities, e) + } + } +} diff --git a/world/world.go b/world/world.go new file mode 100644 index 0000000..2c48309 --- /dev/null +++ b/world/world.go @@ -0,0 +1,96 @@ +package world + +import ( + "math" + + "code.rocketnine.space/tslocum/gohan" +) + +const ( + ScreenWidth = 400 + ScreenHeight = 225 +) + +var World = &GameWorld{ + CamScale: 1, + CamMoving: true, + PlayerWidth: 16, + PlayerHeight: 16, + ResetGame: true, +} + +type GameWorld struct { + Player gohan.Entity + + DisableEsc bool + + Debug int + NoClip bool + + GameStarted bool + GameStartedTicks int + GameOver bool + + MessageVisible bool + MessageTicks int + MessageDuration int + MessageUpdated bool + MessageText string + + PlayerX, PlayerY float64 + + CamX, CamY float64 + CamScale float64 + CamMoving bool + + PlayerWidth float64 + PlayerHeight float64 + + ResetGame bool + + resetTipShown bool + + Tick int +} + +func Reset() { + for _, e := range gohan.AllEntities() { + e.Remove() + } + World.Player = 0 + World.MessageVisible = false +} + +func LevelCoordinatesToScreen(x, y float64) (float64, float64) { + return (x - World.CamX) * World.CamScale, (y - World.CamY) * World.CamScale +} + +func (w *GameWorld) SetGameOver() { + if w.GameOver { + return + } + + w.GameOver = true + + if !World.resetTipShown { + SetMessage(" GAME OVER\n\nRESET: ", math.MaxInt) + World.resetTipShown = true + } else { + SetMessage("GAME OVER", math.MaxInt) + } +} + +func StartGame() { + if World.GameStarted { + return + } + World.GameStarted = true +} + +func SetMessage(message string, duration int) { + World.MessageText = message + World.MessageVisible = true + World.MessageUpdated = true + World.MessageDuration = duration + World.MessageTicks = 0 +}