func pressButton(b *staticimg.StaticImg, u *uistate.UIState) {
if !b.GetHidden() {
u.Eng.SetSubTex(b.GetNode(), b.GetAlt())
b.SetHidden(false)
b.SetDisplayingImage(false)
}
}
func AlternateImgs(s *staticimg.StaticImg, u *uistate.UIState) {
<-time.After(100 * time.Millisecond)
node := s.GetNode()
node.Arranger = arrangerFunc(func(eng sprite.Engine, node *sprite.Node, t clock.Time) {
t0 := uint32(t) % 10
if t0 < 5 {
u.Eng.SetSubTex(s.GetNode(), s.GetImage())
} else {
u.Eng.SetSubTex(s.GetNode(), s.GetAlt())
}
})
}
// checks one specific drop target to see if a card was dropped there
func dropCardHere(c *card.Card, d *staticimg.StaticImg, t touch.Event, u *uistate.UIState) bool {
if !touchingStaticImg(t, d, u) {
return false
}
lastDroppedCard := d.GetCardHere()
if lastDroppedCard != nil {
reposition.ResetCardPosition(lastDroppedCard, u.Eng)
reposition.RealignSuit(lastDroppedCard.GetSuit(), lastDroppedCard.GetInitial().Y, u)
}
oldY := c.GetInitial().Y
suit := c.GetSuit()
u.CurCard.Move(d.GetCurrent(), c.GetDimensions(), u.Eng)
d.SetCardHere(u.CurCard)
// realign suit the card just left
reposition.RealignSuit(suit, oldY, u)
return true
}
func RemoveImg(s *staticimg.StaticImg, u *uistate.UIState) {
u.Eng.Unregister(s.GetNode())
}
func touchingStaticImg(t touch.Event, s *staticimg.StaticImg, u *uistate.UIState) bool {
withinXBounds := t.X/u.PixelsPerPt >= s.GetCurrent().X && t.X/u.PixelsPerPt <= s.GetDimensions().X+s.GetCurrent().X
withinYBounds := t.Y/u.PixelsPerPt >= s.GetCurrent().Y && t.Y/u.PixelsPerPt <= s.GetDimensions().Y+s.GetCurrent().Y
return withinXBounds && withinYBounds
}
func AnimateImageNoChannel(animImage *staticimg.StaticImg, endPos, endDim *coords.Vec, u *uistate.UIState) {
node := animImage.GetNode()
startPos := animImage.GetCurrent()
startDim := animImage.GetDimensions()
iteration := 0
node.Arranger = arrangerFunc(func(eng sprite.Engine, node *sprite.Node, t clock.Time) {
iteration++
if iteration < animationFrameCount {
curXY := animImage.GetCurrent()
curDim := animImage.GetDimensions()
XYStep := endPos.MinusVec(startPos).DividedBy(animationFrameCount)
dimStep := endDim.MinusVec(startDim).DividedBy(animationFrameCount)
newVec := curXY.PlusVec(XYStep)
dimVec := curDim.PlusVec(dimStep)
animImage.Move(newVec, dimVec, eng)
card := animImage.GetCardHere()
if card != nil {
card.Move(newVec, dimVec, eng)
}
} else if iteration == animationFrameCount {
animImage.Move(endPos, endDim, eng)
card := animImage.GetCardHere()
if card != nil {
card.Move(endPos, endDim, eng)
}
}
})
}