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Landing a piece

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This commit is contained in:
Hajime Hoshi 2013-12-20 03:03:35 +09:00
parent 2ac027c452
commit 14994d57f2
2 changed files with 35 additions and 12 deletions
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4
example/blocks/field.go
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@ -44,6 +44,10 @@ func (f *Field) MovePieceToRight(piece *Piece, x, y int, angle Angle) int {
return x + 1
}
func (f *Field) PieceDroppable(piece *Piece, x, y int, angle Angle) bool {
return !f.collides(piece, x, y+1, angle)
}
func (f *Field) DropPiece(piece *Piece, x, y int, angle Angle) int {
if f.collides(piece, x, y+1, angle) {
return y

43
example/blocks/game_scene.go
View File

@ -21,6 +21,7 @@ type GameScene struct {
currentPieceY int
currentPieceAngle Angle
nextPiece *Piece
landingCount int
}
func NewGameScene() *GameScene {
@ -42,6 +43,8 @@ func (s *GameScene) choosePiece() *Piece {
}
func (s *GameScene) Update(state *GameState) {
const maxLandingCount = 30
if s.currentPiece == nil {
s.currentPiece = s.choosePiece()
x, y := s.currentPiece.InitialPosition()
@ -49,28 +52,44 @@ func (s *GameScene) Update(state *GameState) {
s.currentPieceY = y
s.currentPieceAngle = Angle0
}
piece := s.currentPiece
x := s.currentPieceX
y := s.currentPieceY
angle := s.currentPieceAngle
moved := false
if state.Input.StateForKey(ui.KeySpace) == 1 {
s.currentPieceAngle = s.field.RotatePieceRight(
s.currentPiece, s.currentPieceX, s.currentPieceY,
s.currentPieceAngle)
orig := angle
s.currentPieceAngle = s.field.RotatePieceRight(piece, x, y, angle)
moved = orig != angle
}
if l := state.Input.StateForKey(ui.KeyLeft);
l == 1 || (10 <= l && l % 2 == 0) {
s.currentPieceX = s.field.MovePieceToLeft(
s.currentPiece, s.currentPieceX, s.currentPieceY,
s.currentPieceAngle)
orig := x
s.currentPieceX = s.field.MovePieceToLeft(piece, x, y, angle)
moved = orig != x
}
if r := state.Input.StateForKey(ui.KeyRight);
r == 1 || (10 <= r && r % 2 == 0) {
s.currentPieceX = s.field.MovePieceToRight(
s.currentPiece, s.currentPieceX, s.currentPieceY,
s.currentPieceAngle)
orig := y
s.currentPieceX = s.field.MovePieceToRight(piece, x, y, angle)
moved = orig != y
}
if d := state.Input.StateForKey(ui.KeyDown);
(d - 1) % 2 == 0 {
s.currentPieceY = s.field.DropPiece(
s.currentPiece, s.currentPieceX, s.currentPieceY,
s.currentPieceAngle)
orig := y
s.currentPieceY = s.field.DropPiece(piece, x, y, angle)
moved = orig != y
}
if moved {
s.landingCount = 0
} else if !s.field.PieceDroppable(piece, x, y, angle) {
s.landingCount++
if maxLandingCount <= s.landingCount {
print("landing!\n")
// TODO: implement
s.currentPiece = nil
s.landingCount = 0
}
}
}