package entities

import (
	"github.com/go-gl/mathgl/mgl64"
	"github.com/hajimehoshi/ebiten/v2"
)

type Tile struct {
	pos       mgl64.Vec3
	health    int
	Climbable bool
	SideImg   *ebiten.Image
	TopImg    *ebiten.Image
}

func (t *Tile) Pos() mgl64.Vec3       { return t.pos }
func (t *Tile) SetPos(pos mgl64.Vec3) { t.pos = pos }
func (t *Tile) IsBlocking() bool      { return !t.Climbable }
func (t *Tile) IsClimbable() bool     { return t.Climbable }
func (t *Tile) IsMovable() bool       { return false }
func (t *Tile) Move(dx, dy, dz float64) {
	// Not feasible for soil etc.
}
func (t *Tile) Damage(am int)  { t.health -= am }
func (t *Tile) Pickup() bool   { return false }
func (t *Tile) GetHealth() int { return t.health }

func (t *Tile) DrawSide(screen interface{}, x, y float64, alpha float32) {
	scr := screen.(*ebiten.Image)
	if t.SideImg != nil {
		op := &ebiten.DrawImageOptions{}
		_, sh := t.SideImg.Bounds().Dx(), t.SideImg.Bounds().Dy()
		op.GeoM.Translate(x, y-float64(sh-int(TileSize)))
		op.ColorScale.Scale(alpha, alpha, alpha, alpha)
		scr.DrawImage(t.SideImg, op)
	}
}

func (t *Tile) DrawTop(screen interface{}, x, y float64, alpha float32) {
	scr := screen.(*ebiten.Image)
	if t.TopImg != nil {
		op := &ebiten.DrawImageOptions{}
		_, sh := t.TopImg.Bounds().Dx(), t.TopImg.Bounds().Dy()
		op.GeoM.Translate(x, y-float64(sh-int(TileSize)))
		op.ColorScale.Scale(alpha, alpha, alpha, alpha)
		scr.DrawImage(t.TopImg, op)
	}
}