1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
package main
import (
"image/color"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/inpututil"
"github.com/hajimehoshi/ebiten/v2/vector"
)
type Action string
const (
Selecting Action = "selecting"
)
type Tile struct {
*ebiten.Image
Size Point
Position Point
}
func NewTile(size Point, position Point, color color.Color) Tile {
image := ebiten.NewImage(int(size.X), int(size.Y))
image.Fill(color)
return Tile{Size: size, Position: position, Image: image}
}
func (t Tile) CollisionBounds() Rectangle {
return Rectangle{t.Position, t.Position.Add(t.Size)}
}
var soilColor = color.RGBA{0x60, 0x40, 0x20, 0xff}
var soil = NewTile(Point{2800, 2000}, Point{200, 200}, soilColor)
type Selection struct {
IsActive bool
Start Point
}
type Game struct {
Persons []*Person
CurrentAction Action
Selection Selection
}
func (g *Game) getBlocked() map[Point]bool {
blocked := map[Point]bool{}
return blocked
}
func (g *Game) updateSelecting(cursor Point) {
if inpututil.IsMouseButtonJustPressed(ebiten.MouseButtonLeft) {
g.Selection.Start = cursor
g.Selection.IsActive = true
}
if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonRight) {
destination := cursor.Sub(soil.Position).Div(100).Mul(100).Add(Point{50, 50})
for _, p := range g.Persons {
if p.IsSelected {
futureBounds := Rectangle{
destination.Sub(p.size.Div(2)),
destination.Add(p.size.Div(2)),
}
if futureBounds.In(soil.Bounds()) {
p.MoveTo(destination, g.getBlocked())
}
}
}
}
if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonLeft) {
if g.Selection.IsActive && Distance(g.Selection.Start, cursor) > 10 {
for _, p := range g.Persons {
p.IsSelected = false
selectionBounds := Rectangle{g.Selection.Start.Sub(soil.Position), cursor.Sub(soil.Position)}.Canon()
if selectionBounds.Overlaps(p.CollisionBounds()) {
p.IsSelected = true
}
}
} else {
canBeSelected := true
for _, p := range g.Persons {
p.IsSelected = false
if cursor.Sub(soil.Position).In(p.CollisionBounds()) {
p.IsSelected = canBeSelected
canBeSelected = false
}
}
}
g.Selection.IsActive = false
}
}
func (g *Game) Update() error {
x, y := ebiten.CursorPosition()
cursor := Point{x, y}
if inpututil.IsKeyJustReleased(ebiten.KeyEscape) {
g.CurrentAction = Selecting
}
switch g.CurrentAction {
case Selecting:
g.updateSelecting(cursor)
}
for _, p := range g.Persons {
p.Update()
}
return nil
}
func (g *Game) Draw(screen *ebiten.Image) {
x, y := ebiten.CursorPosition()
screenClick := Point{x, y}
screen.Fill(color.RGBA{0x80, 0xa0, 0xc0, 0xff})
soil.Fill(soilColor)
for _, p := range g.Persons {
bounds := p.Image().Bounds()
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(p.Position.X-bounds.Dx()/2), float64(p.Position.Y-bounds.Dy()/2))
soil.DrawImage(p.Image(), op)
if p.IsSelected && p.move.IsActive {
last := p.Position
for _, point := range p.move.Path {
vector.StrokeLine(soil.Image, float32(last.X), float32(last.Y), float32(point.X), float32(point.Y), 10.0, color.RGBA{256 * 3 / 16, 256 * 3 / 16, 256 * 3 / 16, 256 / 4}, true)
last = point
}
}
}
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(soil.Position.X), float64(soil.Position.Y))
screen.DrawImage(soil.Image, op)
if g.Selection.IsActive {
vector.StrokeRect(screen, float32(g.Selection.Start.X), float32(g.Selection.Start.Y), float32(screenClick.X-g.Selection.Start.X), float32(screenClick.Y-g.Selection.Start.Y), 10.0, color.RGBA{256 * 3 / 16, 256 * 3 / 16, 256 * 3 / 16, 256 / 4}, true)
}
}
func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
return 3200, 2400
}
func main() {
ebiten.SetWindowSize(640, 480)
ebiten.SetWindowTitle("Age of Empire")
game := &Game{}
mainPerson := NewPerson(Point{soil.Image.Bounds().Dx() / 2, soil.Image.Bounds().Dy() / 2})
nonPlayerPerson := NewPerson(Point{450, 450})
game.Persons = append(game.Persons, &mainPerson)
game.Persons = append(game.Persons, &nonPlayerPerson)
game.CurrentAction = Selecting
if err := ebiten.RunGame(game); err != nil {
panic(err)
}
}
|
