-
Notifications
You must be signed in to change notification settings - Fork 1
/
render.go
129 lines (122 loc) · 3.35 KB
/
render.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
// Copyright 2016 Google Inc.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package gui
import (
"image"
"image/color"
"image/draw"
"github.com/tswast/pixelsketches/palettes"
)
func drawPalette(scr draw.Image, pal []color.Color) {
scrB := scr.Bounds()
scrH := scrB.Max.Y - scrB.Min.Y
clrH := scrH / len(pal)
for ci, clr := range pal {
draw.Draw(
scr,
image.Rectangle{
image.Point{0, ci * clrH},
image.Point{ImageX - ButtonBuffer, (ci + 1) * clrH}},
&image.Uniform{clr},
image.ZP,
draw.Src)
}
}
func drawColorChoice(scr draw.Image, clr color.Color) {
draw.Draw(
scr,
image.Rectangle{
image.Point{ImageX - ButtonBuffer, 0},
image.Point{ImageX, ImageHeight}},
&image.Uniform{clr},
image.ZP,
draw.Src)
draw.Draw(
scr,
image.Rectangle{
image.Point{ImageX + ImageWidth, 0},
image.Point{ImageX + ImageWidth + ButtonBuffer, ImageHeight}},
&image.Uniform{clr},
image.ZP,
draw.Src)
}
func drawTools(scr draw.Image) {
draw.Draw(
scr,
image.Rectangle{
image.Point{ImageX + ImageWidth + ButtonBuffer, 0},
image.Point{ScreenWidth, ScreenHeight}},
&image.Uniform{palettes.PICO8_DARK_GRAY},
image.ZP,
draw.Src)
draw.Draw(
scr,
image.Rectangle{
image.Point{ImageX + ImageWidth + ButtonBuffer, ScreenHeight - ButtonHeight},
image.Point{ScreenWidth, ScreenHeight}},
&image.Uniform{palettes.PICO8_BLACK},
image.ZP,
draw.Src)
// Draw EXIT
// E
scr.Set(91, 60, palettes.PICO8_WHITE)
scr.Set(91, 61, palettes.PICO8_WHITE)
scr.Set(91, 62, palettes.PICO8_WHITE)
scr.Set(91, 63, palettes.PICO8_WHITE)
scr.Set(92, 60, palettes.PICO8_WHITE)
scr.Set(92, 61, palettes.PICO8_WHITE)
scr.Set(92, 63, palettes.PICO8_WHITE)
scr.Set(93, 60, palettes.PICO8_WHITE)
scr.Set(93, 63, palettes.PICO8_WHITE)
// X
scr.Set(95, 60, palettes.PICO8_WHITE)
scr.Set(95, 61, palettes.PICO8_WHITE)
scr.Set(95, 63, palettes.PICO8_WHITE)
scr.Set(96, 61, palettes.PICO8_WHITE)
scr.Set(96, 62, palettes.PICO8_WHITE)
scr.Set(97, 60, palettes.PICO8_WHITE)
scr.Set(97, 62, palettes.PICO8_WHITE)
scr.Set(97, 63, palettes.PICO8_WHITE)
// I
scr.Set(99, 60, palettes.PICO8_WHITE)
scr.Set(99, 63, palettes.PICO8_WHITE)
scr.Set(100, 60, palettes.PICO8_WHITE)
scr.Set(100, 61, palettes.PICO8_WHITE)
scr.Set(100, 62, palettes.PICO8_WHITE)
scr.Set(100, 63, palettes.PICO8_WHITE)
scr.Set(101, 60, palettes.PICO8_WHITE)
scr.Set(101, 63, palettes.PICO8_WHITE)
// T
scr.Set(103, 60, palettes.PICO8_WHITE)
scr.Set(104, 60, palettes.PICO8_WHITE)
scr.Set(104, 61, palettes.PICO8_WHITE)
scr.Set(104, 62, palettes.PICO8_WHITE)
scr.Set(104, 63, palettes.PICO8_WHITE)
scr.Set(105, 60, palettes.PICO8_WHITE)
}
// DrawScreen draws the user interface of an app.
func (app *AppState) DrawScreen() *image.NRGBA {
im := app.Image
pal := im.Palette
clr := app.Color
r := image.Rect(0, 0, ScreenWidth, ScreenHeight)
scr := image.NewNRGBA(r)
drawPalette(scr, pal)
drawColorChoice(scr, clr)
drawTools(scr)
draw.Draw(
scr,
image.Rectangle{
image.Point{ImageX, 0},
image.Point{ImageX + ImageWidth, ImageHeight}},
im,
image.ZP,
draw.Src)
// Draw cursor
// Choose a different color every time, so it is easier to track where the
// cursor is.
csr := (app.Cursor.Pos.X + app.Cursor.Pos.Y) % len(palettes.PICO8)
scr.Set(app.Cursor.Pos.X, app.Cursor.Pos.Y, palettes.PICO8[csr])
return scr
}