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Add #JPOSSCROLL

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Anthony Samms
2025-11-15 12:33:00 -05:00
parent 9ed4ea6c59
commit 1ebb2882c1
2 changed files with 125 additions and 31 deletions
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67
libs/tja.py
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@@ -72,6 +72,8 @@ class Note:
lyric: str = field(init=False)
sudden_appear_ms: float = field(init=False)
sudden_moving_ms: float = field(init=False)
judge_pos_x: float = field(init=False)
judge_pos_y: float = field(init=False)
def __lt__(self, other):
return self.hit_ms < other.hit_ms
@@ -627,6 +629,10 @@ class TJAParser:
index = 0
sudden_appear = 0
sudden_moving = 0
judge_pos_x = 0 # Offset from default judgment position
judge_pos_y = 0
judge_target_x = 0 # Target position for interpolation
judge_target_y = 0
time_signature = 4/4
bpm = self.metadata.bpm
x_scroll_modifier = 1
@@ -758,6 +764,67 @@ class TJAParser:
lyric = part[6:]
continue
if '#JPOSSCROLL' in part:
parts = part.split()
if len(parts) >= 4:
duration_ms = float(parts[1]) * 1000
distance_str = parts[2]
direction_deg = float(parts[3])
delta_x = 0
delta_y = 0
if 'i' in distance_str:
normalized = distance_str.replace('.i', 'j').replace('i', 'j')
normalized = normalized.replace(',', '')
c = complex(normalized)
direction_rad = math.radians(direction_deg)
cos_dir = math.cos(direction_rad)
sin_dir = math.sin(direction_rad)
delta_x = c.real * cos_dir - c.imag * sin_dir
delta_y = c.real * sin_dir + c.imag * cos_dir
else:
distance = float(distance_str)
direction_rad = math.radians(direction_deg)
delta_x = distance * math.cos(direction_rad)
delta_y = distance * math.sin(direction_rad)
judge_target_x = judge_pos_x + delta_x
judge_target_y = judge_pos_y + delta_y
interpolation_interval_ms = 8
num_steps = int(duration_ms / interpolation_interval_ms)
for step in range(num_steps + 1):
t = step / max(num_steps, 1) # Interpolation factor (0 to 1)
interpolated_ms = self.current_ms + (step * interpolation_interval_ms)
# Linear interpolation
interp_x = judge_pos_x + (delta_x * t)
interp_y = judge_pos_y + (delta_y * t)
# Create invisible bar line to store position
jpos_bar = Note()
jpos_bar.pixels_per_frame_x = get_pixels_per_frame(bpm * time_signature * x_scroll_modifier, time_signature*4, self.distance)
jpos_bar.pixels_per_frame_y = get_pixels_per_frame(bpm * time_signature * y_scroll_modifier, time_signature*4, self.distance)
pixels_per_ms = get_pixels_per_ms(jpos_bar.pixels_per_frame_x)
jpos_bar.hit_ms = interpolated_ms
if pixels_per_ms == 0:
jpos_bar.load_ms = jpos_bar.hit_ms
else:
jpos_bar.load_ms = jpos_bar.hit_ms - (self.distance / pixels_per_ms)
jpos_bar.type = 0
jpos_bar.display = False
jpos_bar.gogo_time = gogo_time
jpos_bar.bpm = bpm
jpos_bar.judge_pos_x = interp_x
jpos_bar.judge_pos_y = interp_y
bisect.insort(curr_bar_list, jpos_bar, key=lambda x: x.load_ms)
judge_pos_x = judge_target_x
judge_pos_y = judge_target_y
continue
elif '#NMSCROLL' in part:
continue