"""Podstawy: wlasny model z Blendera i kamera robiaca pelne 360 stopni.

Uruchom w UE: File > Execute Python Script. Zapisz model w Blenderze przed uruchomieniem.
"""
import math

from ue_workshop import Scene, Sequence, Renderer, camera, lighting, materials
from ue_workshop.paths import PROJECT

REIMPORT = False  # True po zmianie modelu w Blenderze; False uzywa assetu z UE

# 1. SCENA. Zmien model, kolor podlogi i swiatla.
scene = Scene("Basics")
character = scene.model(
    PROJECT / "source_assets/character/character_custom.blend",
    name="CustomCharacter", height=200, reimport=REIMPORT,
)
floor = materials.color("Floor", (0.07, 0.08, 0.11))
scene.primitive("Cube", name="Floor", location=(0, 0, -10), scale=(20, 20, 0.2), material=floor)
lighting.studio(scene)

# 2. KAMERA. Jednostki: centymetry; FOV w stopniach.
radius = 550
height = 260
target = (0, 0, 100)
cam = camera.create(scene, location=(radius, 0, height), target=target, fov=45)

# 3. ANIMACJA. 192 klatki przy 24 FPS = 8 sekund.
shot = Sequence(scene, fps=24, frames=192)
shot.camera(cam)
pitch = -math.degrees(math.atan2(height - target[2], radius))
for frame in range(shot.frames):
    angle = 360 * frame / (shot.frames - 1)
    x = radius * math.cos(math.radians(angle))
    y = radius * math.sin(math.radians(angle))
    # Rotacja: roll, pitch, yaw. Ciagly yaw zapobiega obrotowi wstecz przy 180 stopniach.
    shot.transform_key(cam, frame, location=(x, y, height), rotation=(0, pitch, angle + 180))
shot.save()

# 4. RENDER. Najpierw obejrzyj scene w Sequencerze.
renderer = Renderer(width=1280, height=720, samples=4, warmup=16, mp4=True)
# renderer.render(shot)
# Zamiast filmu: renderer.render(shot, single_frame=96)