52 lines
858 B
Go
52 lines
858 B
Go
package gg
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import (
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"github.com/hajimehoshi/ebiten/v2"
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"image"
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_ "image/png"
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"io"
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"math"
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)
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type Image = ebiten.Image
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type ColorV uint32
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type ColorM = ebiten.ColorM
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type Color struct {
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R, G, B, A ColorV
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}
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const (
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MaxColorV = math.MaxUint32
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)
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// The wrapper to make RGBA color via
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// values from 0 to 1 (no value at all and the max value).
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func Rgba(r, g, b, a Float) Color {
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return Color {
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ColorV(r*MaxColorV),
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ColorV(g*MaxColorV),
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ColorV(b*MaxColorV),
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ColorV(a*MaxColorV),
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}
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}
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func LoadImage(input io.Reader) (*Image, error) {
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img, _, err := image.Decode(input)
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if err != nil {
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return nil, err
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}
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ret := ebiten.NewImageFromImage(img)
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return ret, nil
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}
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func NewImage(w, h int) (*Image) {
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return ebiten.NewImage(w, h)
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}
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func (c Color) RGBA() (r, g, b, a uint32) {
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return uint32(c.R), uint32(c.G), uint32(c.B), uint32(c.A)
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}
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