-
Notifications
You must be signed in to change notification settings - Fork 22
/
maze.go
151 lines (133 loc) · 3.85 KB
/
maze.go
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 pacman
import (
"github.com/hajimehoshi/ebiten"
"github.com/skatiyar/pacman/assets"
"github.com/skatiyar/pacman/spritetools"
)
const MazeViewSize = 1536
const CellSize = 64
func MazeView(
walls *assets.Walls,
) (func(state gameState, data *Data) (*ebiten.Image, error), error) {
icWallSide, icWallSideErr := spritetools.ScaleSprite(walls.InActiveSide, 1.0, 1.0)
if icWallSideErr != nil {
return nil, icWallSideErr
}
icWallCorner, icWallCornerErr := spritetools.ScaleSprite(walls.InActiveCorner, 1.0, 1.0)
if icWallCornerErr != nil {
return nil, icWallCornerErr
}
mazeView, mazeViewErr := ebiten.NewImage(CellSize*Columns, MazeViewSize, ebiten.FilterDefault)
if mazeViewErr != nil {
return nil, mazeViewErr
}
var lastGrid [][Columns][4]rune
return func(state gameState, data *Data) (*ebiten.Image, error) {
if equal, copy := deepEqual(lastGrid, data.grid); equal {
return mazeView, nil
} else {
lastGrid = copy
}
if clearErr := mazeView.Clear(); clearErr != nil {
return nil, clearErr
}
ops := &ebiten.DrawImageOptions{}
for i := 0; i < len(data.grid); i++ {
for j := 0; j < len(data.grid[i]); j++ {
side := icWallSide
corner := icWallCorner
cellWalls := data.grid[i][j]
if cellWalls[0] == 'N' {
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize)+12,
float64(MazeViewSize-((i*CellSize)+CellSize)))
if drawErr := mazeView.DrawImage(side, ops); drawErr != nil {
return nil, drawErr
}
}
if cellWalls[1] == 'E' {
ops.GeoM.Reset()
ops.GeoM.Rotate(1.5708)
ops.GeoM.Translate(float64(j*CellSize)+CellSize,
float64(MazeViewSize-((i*CellSize)+52)))
if drawErr := mazeView.DrawImage(side, ops); drawErr != nil {
return nil, drawErr
}
}
if cellWalls[2] == 'S' {
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize)+12,
float64(MazeViewSize-((i*CellSize)+12)))
if drawErr := mazeView.DrawImage(side, ops); drawErr != nil {
return nil, drawErr
}
}
if cellWalls[3] == 'W' {
ops.GeoM.Reset()
ops.GeoM.Rotate(1.5708)
ops.GeoM.Translate(float64(j*CellSize)+12,
float64(MazeViewSize-((i*CellSize)+52)))
if drawErr := mazeView.DrawImage(side, ops); drawErr != nil {
return nil, drawErr
}
}
// Corners NE
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize)+52,
float64(MazeViewSize-((i*CellSize)+CellSize)))
if drawErr := mazeView.DrawImage(corner, ops); drawErr != nil {
return nil, drawErr
}
// NW
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize),
float64(MazeViewSize-((i*CellSize)+CellSize)))
if drawErr := mazeView.DrawImage(corner, ops); drawErr != nil {
return nil, drawErr
}
// SE
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize)+52,
float64(MazeViewSize-((i*CellSize)+12)))
if drawErr := mazeView.DrawImage(corner, ops); drawErr != nil {
return nil, drawErr
}
// SW
ops.GeoM.Reset()
ops.GeoM.Translate(float64(j*CellSize),
float64(MazeViewSize-((i*CellSize)+12)))
if drawErr := mazeView.DrawImage(corner, ops); drawErr != nil {
return nil, drawErr
}
}
}
return mazeView, nil
}, nil
}
func deepEqual(previous, next [][Columns][4]rune) (bool, [][Columns][4]rune) {
deepCopy := func(src [][Columns][4]rune) [][Columns][4]rune {
copy := make([][Columns][4]rune, 0)
for i := 0; i < len(next); i++ {
row := [Columns][4]rune{}
for j := 0; j < Columns; j++ {
row[j] = next[i][j]
}
copy = append(copy, row)
}
return copy
}
if len(previous) != len(next) {
return false, deepCopy(next)
}
for i := 0; i < len(previous); i++ {
if previous[i] != next[i] {
return false, deepCopy(next)
}
for j := 0; j < Columns; j++ {
if previous[i][j] != next[i][j] {
return false, deepCopy(next)
}
}
}
return true, next
}