Turtike/godot-4-key-rhythm-game
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Implement note spawner.

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Turtike
2026-02-01 23:17:51 +08:00
parent 3a9d3046b2
commit 7bc4246375
8 changed files with 151 additions and 75 deletions
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8
rhythm_game/note/view/lane_view.gd
View File

@@ -8,9 +8,9 @@ class_name LaneView extends NoteView
func get_data() -> NoteSubset:
return _lane_notes
func update_current_beat(beat: float) -> void:
_current_beat = beat
_update_view_relative_to_notes(_lane_notes)
func update(beat: float) -> void:
_update_view_relative_to_notes(_lane_notes, beat)
_previous_beat = beat
# ======== Implementation ======== #
var _lane_notes: NoteSubset
@@ -18,4 +18,4 @@ var _lane_notes: NoteSubset
func _set_data(p_notes: NoteArray) -> void:
notes = p_notes
_lane_notes = NoteSubset.get_notes_in_lane(p_notes, lane)
_reset_view()
reset_view()

37
rhythm_game/note/view/note_view.gd
View File

@@ -8,12 +8,41 @@ class_name NoteView extends View
func get_data() -> NoteArray:
return notes
func update_current_beat(beat: float) -> void:
_current_beat = beat
_update_view_relative_to_notes(notes)
func update(beat: float) -> void:
_update_view_relative_to_notes(notes, beat)
_previous_beat = beat
func reset_view() -> void:
super.reset_view()
_previous_beat = -999.0
# ======= IMPLEMENTATION ======= #
var _previous_beat: float = -999.0
func _set_notes(p_notes: NoteArray) -> void:
notes = p_notes
_reset_view()
reset_view()
## Update the view to match _current_beat.
func _update_view_relative_to_notes(p_notes: NoteArray, new_beat: float) -> void:
var new_begin = _begin
var new_end = _end
if new_beat > _previous_beat:
# Update forward.
while(new_begin < p_notes.size()) and (p_notes.beat_at(new_begin) < new_beat + offset_begin):
new_begin += 1
while(new_end < p_notes.size()) and (p_notes.beat_at(new_end) <= new_beat + offset_end):
new_end += 1
elif new_beat < _previous_beat:
# Update backward.
while(new_begin >= 0) and (p_notes.beat_at(new_begin) >= new_beat + offset_begin):
_begin -= 1
while(new_end >= 0) and (p_notes.beat_at(new_end) > new_beat + offset_end):
new_end -= 1
if(new_begin != _begin):
new_begin += 1
if(new_end != _end):
new_end += 1
_begin = new_begin
_end = new_end

41
rhythm_game/note/view/view.gd
View File

@@ -7,7 +7,12 @@
## Update the view to be relative to beat.
## Can be connected to a beat update signal.
@abstract func update_current_beat(beat: float) -> void
@abstract func update(beat: float) -> void
## Reset the view.
func reset_view() -> void:
_begin = -1
_end = -1
## Beginning of the range relative to te current beat where notes will be visible.
## Any notes where (hit_beat < current_beat + offset_begin) will NOT be visible.
@@ -32,37 +37,3 @@ func size() -> int:
# ======= IMPLEMENETATION ======= #
var _begin: int = -1
var _end: int = -1
var _current_beat: float = -999
var _previous_beat: float = -999
func _reset_view() -> void:
_begin = -1
_end = -1
_current_beat = -999
_previous_beat = -999
## Update the view to match _current_beat.
func _update_view_relative_to_notes(notes: NoteArray) -> void:
var new_begin = _begin
var new_end = _end
if _current_beat > _previous_beat:
# Update forward.
while(new_begin < notes.size()) and (notes.beat_at(new_begin) < _current_beat + offset_begin):
new_begin += 1
while(new_end < notes.size()) and (notes.beat_at(new_end) <= _current_beat + offset_end):
new_end += 1
elif _current_beat < _previous_beat:
# Update backward.
while(new_begin >= 0) and (notes.beat_at(new_begin) >= _current_beat + offset_begin):
_begin -= 1
while(new_end >= 0) and (notes.beat_at(new_end) > _current_beat + offset_end):
new_end -= 1
if(new_begin != _begin):
new_begin += 1
if(new_end != _end):
new_end += 1
_begin = new_begin
_end = new_end
_previous_beat = _current_beat