Release NaraMotion v0.26.0: Structure of Arrays (SoA), Path Arena Allocator, Uniform Grid Indexing, Dual-Buffer Rendering & Centroid Spring Pop-in
b516e00 verified | import math | |
| import pytest | |
| from naramotion.path import Path | |
| from naramotion.motion import trim_path, PathFollower, PathMorph | |
| def test_trim_path_line(): | |
| p = Path() | |
| p.move_to(0, 0) | |
| p.line_to(100, 0) | |
| # Trim 0.0 -> 0.5 (halfway line) | |
| trimmed = trim_path(p, 0.0, 0.5) | |
| assert not trimmed.is_empty() | |
| verts = trimmed.get_vertices() | |
| assert len(verts) >= 2 | |
| assert math.isclose(verts[-1][1], 50.0, abs_tol=1.0) | |
| def test_trim_path_circle_reveal(): | |
| p = Path() | |
| p.add_circle(100, 100, 50) | |
| # 3/4 circle reveal | |
| trimmed = trim_path(p, 0.0, 0.75) | |
| assert not trimmed.is_empty() | |
| assert trimmed.size > 5 | |
| def test_path_follower(): | |
| p = Path() | |
| p.move_to(0, 0) | |
| p.line_to(100, 0) | |
| p.line_to(100, 100) | |
| follower = PathFollower(p) | |
| # Start (0, 0) | |
| p0 = follower.get_position(0.0) | |
| assert math.isclose(p0[0], 0.0, abs_tol=1e-3) | |
| assert math.isclose(p0[1], 0.0, abs_tol=1e-3) | |
| # Midpoint (100, 0) at t=0.5 | |
| p_mid = follower.get_position(0.5) | |
| assert math.isclose(p_mid[0], 100.0, abs_tol=1.0) | |
| assert math.isclose(p_mid[1], 0.0, abs_tol=1.0) | |
| # End (100, 100) at t=1.0 | |
| p_end = follower.get_position(1.0) | |
| assert math.isclose(p_end[0], 100.0, abs_tol=1.0) | |
| assert math.isclose(p_end[1], 100.0, abs_tol=1.0) | |
| # Heading angle | |
| angle_start = follower.get_tangent_angle(0.1) | |
| assert math.isclose(angle_start, 0.0, abs_tol=0.1) # Heading East | |
| def test_path_morph(): | |
| # Square | |
| p1 = Path() | |
| p1.add_rect(0, 0, 100, 100) | |
| # Circle | |
| p2 = Path() | |
| p2.add_circle(50, 50, 50) | |
| morph = PathMorph(p1, p2, num_samples=50) | |
| # Midpoint shape | |
| p_mid = morph(0.5) | |
| assert isinstance(p_mid, Path) | |
| assert not p_mid.is_empty() | |
| assert p_mid.size >= 50 | |