def create_isometric_grid_lines(width, height, tile_width, tile_height, color, line_width):
# Grid lines 1
shape_list = ShapeElementList()
for tile_row in range(-1, height):
tile_x = 0
start_x, start_y = isometric_grid_to_screen(tile_x, tile_row, width, height, tile_width, tile_height)
tile_x = width - 1
end_x, end_y = isometric_grid_to_screen(tile_x, tile_row, width, height, tile_width, tile_height)
start_x -= tile_width // 2
end_y -= tile_height // 2
line = create_line(start_x, start_y, end_x, end_y, color, line_width=line_width)
shape_list.append(line)
# Grid lines 2
for tile_column in range(-1, width):
tile_y = 0
start_x, start_y = isometric_grid_to_screen(tile_column, tile_y, width, height, tile_width, tile_height)
tile_y = height - 1
end_x, end_y = isometric_grid_to_screen(tile_column, tile_y, width, height, tile_width, tile_height)
start_x += tile_width // 2
end_y -= tile_height // 2
line = create_line(start_x, start_y, end_x, end_y, color, line_width=line_width)
shape_list.append(line)
return shape_list
def test_create_line():
line = create_line(
start_x=10, start_y=20, end_x=30, end_y=40,
color=(100, 110, 120), line_width=5
)
assert line.mode == gl.GL_LINE_STRIP
assert line.line_width == 5
data = get_data_from_vbo(line.vbo, 2, 12)
expected = np.zeros(2, dtype=buffer_type)
expected["vertex"] = [10, 20], [30, 40]
expected["color"] = [100, 110, 120, 255], [100, 110, 120, 255]
np.testing.assert_array_equal(data, expected)