62 lines
1.1 KiB
Go
62 lines
1.1 KiB
Go
package fonts
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"image/color"
|
|
)
|
|
|
|
type Font map[string][][]byte
|
|
|
|
var (
|
|
ErrCharNotFound = errors.New("unrecognized character")
|
|
)
|
|
|
|
func (f Font) ToColor(char string, c color.RGBA) ([][]color.RGBA, error) {
|
|
bitmap, found := f[char]
|
|
if !found {
|
|
return nil, fmt.Errorf("%w: %s", ErrCharNotFound, char)
|
|
}
|
|
|
|
colorMappedChar := make([][]color.RGBA, 0, len(bitmap))
|
|
for _, row := range bitmap {
|
|
crow := make([]color.RGBA, 0, len(row))
|
|
for _, pixel := range row {
|
|
crowColor := c
|
|
crowColor.R = crowColor.R * pixel
|
|
crowColor.G = crowColor.G * pixel
|
|
crowColor.B = crowColor.B * pixel
|
|
crowColor.A = 0xff
|
|
crow = append(crow, crowColor)
|
|
}
|
|
|
|
colorMappedChar = append(colorMappedChar, crow)
|
|
}
|
|
|
|
return colorMappedChar, nil
|
|
}
|
|
|
|
var (
|
|
White = color.RGBA{
|
|
R: 255, G: 255, B: 255, A: 255,
|
|
}
|
|
Black = color.RGBA{
|
|
R: 0, G: 0, B: 0, A: 255,
|
|
}
|
|
DarkGrey = color.RGBA{
|
|
R: 70, G: 70, B: 70, A: 255,
|
|
}
|
|
Green = color.RGBA{
|
|
R: 34, G: 177, B: 76, A: 255,
|
|
}
|
|
Orange = color.RGBA{
|
|
R: 255, G: 126, B: 0, A: 255,
|
|
}
|
|
Red = color.RGBA{
|
|
R: 153, G: 0, B: 48, A: 255,
|
|
}
|
|
Blue = color.RGBA{
|
|
R: 0, G: 183, B: 239, A: 255,
|
|
}
|
|
)
|