// 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 animateCardNoChannel(animCard *card.Card, endPos, endDim *coords.Vec, u *uistate.UIState) {
node := animCard.GetNode()
startPos := animCard.GetCurrent()
startDim := animCard.GetDimensions()
iteration := 0
node.Arranger = arrangerFunc(func(eng sprite.Engine, node *sprite.Node, t clock.Time) {
iteration++
if iteration < animationFrameCount {
curXY := animCard.GetCurrent()
curDim := animCard.GetDimensions()
XYStep := endPos.MinusVec(startPos).DividedBy(animationFrameCount)
dimStep := endDim.MinusVec(startDim).DividedBy(animationFrameCount)
newVec := curXY.PlusVec(XYStep)
dimVec := curDim.PlusVec(dimStep)
animCard.Move(newVec, dimVec, eng)
} else if iteration == animationFrameCount {
animCard.Move(endPos, endDim, eng)
}
})
}
// checks all drop targets to see if a card was dropped there
func dropCardOnTarget(c *card.Card, t touch.Event, u *uistate.UIState) bool {
for _, d := range u.DropTargets {
// checking to see if card was dropped onto a drop target
if touchingStaticImg(t, d, u) {
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()
c.Move(d.GetCurrent(), c.GetDimensions(), u.Eng)
d.SetCardHere(c)
// realign suit the card just left
reposition.RealignSuit(suit, oldY, u)
return true
}
}
return false
}
func touchingCard(t touch.Event, c *card.Card, u *uistate.UIState) bool {
withinXBounds := t.X/u.PixelsPerPt >= c.GetCurrent().X && t.X/u.PixelsPerPt <= c.GetDimensions().X+c.GetCurrent().X
withinYBounds := t.Y/u.PixelsPerPt >= c.GetCurrent().Y && t.Y/u.PixelsPerPt <= c.GetDimensions().Y+c.GetCurrent().Y
return withinXBounds && withinYBounds
}
// Resets the position of card c to its initial position, then realigns the suit it was in
func ResetCardPosition(c *card.Card, eng sprite.Engine) {
c.Move(c.GetInitial(), c.GetDimensions(), eng)
}