gg/ox/sprite.go
2024-06-02 00:01:17 +05:00

117 lines
2 KiB
Go

package ox
import (
"github.com/hajimehoshi/ebiten/v2"
//"fmt"
)
import "surdeus.su/core/gg/mx"
import "surdeus.su/core/gg"
var _ = gg.Drawer(&Sprite{})
type Sprite struct {
Transform
Drawity
}
var (
//spritesOp DrawImageOptions
)
func (s *Sprite) Draw(c gg.Context) *gg.Drawing {
// Nothing to draw.
if s.Images[0] == nil {
return nil
}
t := s.GetRectangleToDraw().Transform
m := t.GetMatrice()
if !s.IsFloating() {
m.Concat(c.Camera().GetRealMatrice(c))
}
// Drawing without shader.
if s.Shader == nil {
c.Image().DrawImage(s.Images[0], &ebiten.DrawImageOptions{
GeoM: m,
})
return nil
}
w, h := s.Images[0].Size()
// Drawing with shader.
c.Image().DrawRectShader(
w, h,
s.Shader,
&ebiten.DrawRectShaderOptions{
Images: s.Images,
Uniforms: s.Uniforms,
GeoM: m,
},
)
return nil
}
// Return the rectangle that contains the sprite to draw.
func (s *Sprite) GetRectangleToDraw() Rectangle {
if s.Images[0] == nil {
return Rectangle{}
}
w, h := s.Images[0].Size()
t := s.Transform
t.SetAround(
t.GetAround().Mul(
mx.Vector{mx.Float(w), mx.Float(h)},
),
)
return Rectangle{
Transform: t,
}
}
// Return the rectangle that contains
// the sprite in the engine.
func (s *Sprite) GetRectangle() Rectangle {
if s.Images[0] == nil {
return Rectangle{
Transform: s.Transform,
}
}
w, h := s.Images[0].Size()
t := s.Transform
return Rectangle{
Transform: t,
Width: mx.Float(w),
Height: mx.Float(h),
}
}
// Get triangles of the rectangle that contains the sprite
// and has the same widght and height.
func (s *Sprite) MakeTriangles() mx.Triangles {
return s.GetRectangle().MakeTriangles()
}
func (s *Sprite) Vertices() mx.Vectors {
return s.GetRectangle().Vertices()
}
func (s *Sprite) Edges() mx.Lines {
return s.GetRectangle().Edges()
}
func (s *Sprite) ContainsPoint(
pt mx.Vector,
) bool {
return s.GetRectangle().ContainsPoint(pt)
}
func (s *Sprite) GetContainedPoints(
pts mx.Vectors,
) mx.Vectors {
return s.GetRectangle().GetContainedPoints(pts)
}