110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
package d2gui
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import (
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"log"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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"github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset"
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)
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// AnimationDirection is a the animation play direction
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type AnimationDirection int
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// AnimationDirection types
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const (
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DirectionForward AnimationDirection = iota
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DirectionBackward
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)
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// static check that Sprite implements widget
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var _ widget = &Sprite{}
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// Sprite is an image
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type Sprite struct {
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widgetBase
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segmentsX int
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segmentsY int
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frameOffset int
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animation d2interface.Animation
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}
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// AnimatedSprite is a sprite that has animation
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type AnimatedSprite struct {
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*Sprite
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}
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func createSprite(imagePath, palettePath string, assetManager *d2asset.AssetManager) (*Sprite, error) {
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animation, err := assetManager.LoadAnimation(imagePath, palettePath)
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if err != nil {
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return nil, err
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}
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sprite := &Sprite{}
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sprite.animation = animation
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sprite.SetVisible(true)
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return sprite, nil
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}
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func createAnimatedSprite(
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imagePath, palettePath string,
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direction AnimationDirection,
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assetManager *d2asset.AssetManager,
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) (*AnimatedSprite, error) {
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animation, err := assetManager.LoadAnimation(imagePath, palettePath)
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if err != nil {
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return nil, err
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}
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sprite := &AnimatedSprite{Sprite: &Sprite{animation: animation}}
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if direction == DirectionForward {
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sprite.animation.PlayForward()
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} else {
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sprite.animation.PlayBackward()
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}
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sprite.SetVisible(true)
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return sprite, nil
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}
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func (s *AnimatedSprite) render(target d2interface.Surface) {
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_, frameHeight := s.animation.GetCurrentFrameSize()
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target.PushTranslation(s.x, s.y-frameHeight)
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defer target.Pop()
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s.animation.Render(target)
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}
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// SetSegmented sets the segment properties of the sprite
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func (s *Sprite) SetSegmented(segmentsX, segmentsY, frameOffset int) {
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s.segmentsX = segmentsX
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s.segmentsY = segmentsY
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s.frameOffset = frameOffset
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}
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func (s *Sprite) render(target d2interface.Surface) {
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err := renderSegmented(s.animation, s.segmentsX, s.segmentsY, s.frameOffset, target)
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if err != nil {
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log.Println(err)
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}
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}
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func (s *Sprite) advance(elapsed float64) error {
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return s.animation.Advance(elapsed)
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}
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func (s *Sprite) getSize() (width, height int) {
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return s.animation.GetCurrentFrameSize()
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}
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// SetEffect sets the draw effect for the sprite
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func (s *Sprite) SetEffect(e d2enum.DrawEffect) {
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s.animation.SetEffect(e)
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}
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