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package main
import (
"bytes"
"image"
"image/color"
_ "image/jpeg"
"os"
"runtime/pprof"
"time"
"age_of_empires/ecs"
"age_of_empires/physics"
"age_of_empires/selection"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/inpututil"
"github.com/hajimehoshi/ebiten/v2/text/v2"
"github.com/martinlehoux/kagamigo/kcore"
"golang.org/x/exp/slog"
"golang.org/x/image/font/gofont/goregular"
)
type Action string
const (
Selecting Action = "selecting"
Patrolling Action = "patrolling"
)
var soilColor = color.RGBA{0x60, 0x40, 0x20, 0xff}
type Game struct {
CurrentAction Action
GlobalSelection selection.GlobalSelection
ResourceAmount int
FaceSource *text.GoTextFaceSource
UnitBuilder EntityBuilder
NowFunc func() time.Time
// Components
Mask []ecs.Mask
// Entities []*Entity
Position []physics.Point
RelBounds []physics.Rectangle
Image []*ebiten.Image
Selection []selection.Selection
Move []physics.Move
Order []OrderKind
PatrolOrder []PatrolOrder
ResourceGatherer []ResourceGatherer
ResourceSource []ResourceSource
ResourceStorage []ResourceStorage
Spawn []Spawn
}
func (g Game) Now() time.Time {
if g.NowFunc != nil {
return g.NowFunc()
}
return time.Now()
}
func (g *Game) Append(components Components, mask ecs.Mask) ecs.Entity {
g.Mask = append(g.Mask, mask)
g.Position = append(g.Position, components.Position)
g.RelBounds = append(g.RelBounds, components.RelBounds)
g.Image = append(g.Image, components.Image)
g.Selection = append(g.Selection, components.Selection)
g.Move = append(g.Move, components.Move)
g.Order = append(g.Order, components.Order)
g.ResourceGatherer = append(g.ResourceGatherer, components.ResourceGatherer)
g.ResourceSource = append(g.ResourceSource, components.ResourceSource)
g.ResourceStorage = append(g.ResourceStorage, components.ResourceStorage)
g.Spawn = append(g.Spawn, components.Spawn)
return ecs.Entity(len(g.Mask) - 1)
}
// TODO: This could be a maintained index
func (g *Game) getMoveMap() physics.MoveMap {
required := ecs.CM_Position
blocked := map[physics.Point]bool{}
for i, mask := range g.Mask {
if mask&required == required {
blocked[g.Position[i]] = true
}
}
return physics.MoveMap{Width: 3200, Height: 2400, Blocked: blocked}
}
// TODO: This could be a maintained index
func (g *Game) entityAt(position physics.Point) ecs.Entity {
required := ecs.CM_Position
for i, mask := range g.Mask {
if mask&required == required && g.Position[i] == position {
return ecs.Entity(i)
}
}
return -1
}
func getAllStorageDockings(g *Game) []physics.Point {
storageDockings := []physics.Point{}
required := ecs.CM_Position | ecs.CM_ResourceStorage
for i, mask := range g.Mask {
if mask&required == required {
position := g.Position[i]
storageDockings = append(storageDockings, physics.AdjacentPoints(position)...)
}
}
return storageDockings
}
const (
KeySpawnRequest = ebiten.KeyS
KeyPatrolRequest = ebiten.KeyA // TODO: Should be Q
)
func (g *Game) updateSelecting(cursor physics.Point, moveMap physics.MoveMap) {
if inpututil.IsKeyJustReleased(ebiten.KeyEscape) {
g.GlobalSelection.Unselect(g.Selection)
}
if inpututil.IsMouseButtonJustPressed(ebiten.MouseButtonLeft) {
g.GlobalSelection.Start(cursor)
}
if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonRight) {
destination := cursor.Div(100).Mul(100)
slog.Info("destination", slog.String("destination", destination.String()))
for _, i := range g.GlobalSelection.Selected {
MainAction(g, i, destination, moveMap)
}
}
if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonLeft) {
if g.GlobalSelection.IsActive(cursor) {
if g.GlobalSelection.IsArea(cursor) {
g.GlobalSelection.SelectMultiple(cursor, g.Mask, g.Selection, g.Position, g.RelBounds)
} else {
g.GlobalSelection.SelectSingle(cursor, g.Mask, g.Selection, g.Position, g.RelBounds)
}
}
}
if inpututil.IsKeyJustReleased(KeySpawnRequest) {
required := ecs.CM_Spawn
for _, i := range g.GlobalSelection.Selected {
if g.Mask[i]&required == required {
spawn := &g.Spawn[i]
if g.ResourceAmount >= spawn.UnitResourceCost {
g.ResourceAmount -= spawn.UnitResourceCost
spawn.Requests = append(spawn.Requests, SpawnRequest{Start: g.Now()})
}
}
}
}
}
func (g *Game) Update() error {
x, y := ebiten.CursorPosition()
cursor := physics.Point{X: x, Y: y}
if inpututil.IsKeyJustReleased(ebiten.KeyEscape) {
g.CurrentAction = Selecting
slog.Info("selecting action")
}
if inpututil.IsKeyJustReleased(KeyPatrolRequest) {
g.CurrentAction = Patrolling
slog.Info("patrolling action")
}
switch g.CurrentAction {
case Selecting:
g.updateSelecting(cursor, g.getMoveMap())
case Patrolling:
if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonRight) {
destination := cursor.Div(100).Mul(100)
StartPatrolSystem(destination, g.Mask, g.Position, g.Move, g.Order, g.PatrolOrder)
g.CurrentAction = Selecting
}
}
physics.UpdateMoveSystem(g.getMoveMap(), g.Mask, g.Move, g.Position)
UpdateSpawnSystem(g, g.Now(), g.Mask, g.Spawn, g.Position)
UpdateGatherSystem(g, g.Now(), g.getMoveMap(), g.Mask, g.Order, g.Position, g.Move, g.ResourceGatherer)
UpdatePatrolSystem(g.getMoveMap(), g.Mask, g.Order, g.PatrolOrder, g.Position, g.Move)
return nil
}
func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
return 3200, 2400
}
func main() {
for _, arg := range os.Args {
if arg == "--profile" {
f, err := os.Create("cpu.prof")
kcore.Expect(err, "could not create CPU profile")
defer f.Close()
kcore.Expect(pprof.StartCPUProfile(f), "could not start CPU profile")
defer pprof.StopCPUProfile()
}
}
logHandler := slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug})
slog.SetDefault(slog.New(logHandler))
ebiten.SetWindowSize(960, 640)
ebiten.SetWindowTitle("Age of Empire")
icon, err := os.Open("icon-crop.jpg")
kcore.Expect(err, "failed to open icon")
defer icon.Close()
iconImg, _, err := image.Decode(icon)
kcore.Expect(err, "failed to decode icon")
ebiten.SetWindowIcon([]image.Image{iconImg})
game := &Game{
ResourceAmount: 150,
}
s, err := text.NewGoTextFaceSource(bytes.NewReader(goregular.TTF))
kcore.Expect(err, "failed to create font source")
game.FaceSource = s
ironMineBuilder := NewEntityBuilder().WithSolid(NewFilledRectangleImage(physics.Point{X: 100, Y: 100}, color.RGBA{0x80, 0x80, 0x80, 0xff})).WithResourceSource(1000).WithSelection("square", selection.Building)
game.Append(ironMineBuilder.WithPosition(physics.Point{X: 1000, Y: 1000}).Build())
townCenterBuilder := NewEntityBuilder().WithSolid(NewFilledRectangleImage(physics.Point{X: 100, Y: 100}, color.RGBA{0x0, 0x0, 0xff, 0xff})).WithResourceStorage().WithSelection("square", selection.Building).WithSpawn(NewSpawn(50, 1*time.Second))
townCenter := game.Append(townCenterBuilder.WithPosition(physics.Point{X: 1000, Y: 2000}).Build())
game.UnitBuilder = NewEntityBuilder().WithSolid(NewFilledCircleImage(100, color.White)).WithSelection("round", selection.Unit).WithMove().WithOrder().WithResourceGatherer(15)
for i := 0; i < 0; i++ {
spawnPosition, _ := physics.Closest(game.Position[townCenter], physics.AdjacentPoints(game.Position[townCenter]), game.getMoveMap())
game.Append(game.UnitBuilder.WithPosition(spawnPosition).Build())
}
game.CurrentAction = Selecting
ebiten.SetRunnableOnUnfocused(true)
kcore.Expect(ebiten.RunGame(game), "failed to run game")
}
|
