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import numpy as np | |
import os | |
import pybullet as p | |
import random | |
from cliport.tasks import primitives | |
from cliport.tasks.grippers import Spatula | |
from cliport.tasks.task import Task | |
from cliport.utils import utils | |
import numpy as np | |
from cliport.tasks.task import Task | |
from cliport.utils import utils | |
class AlignCylindersInSquare(Task): | |
"""Arrange four cylinders of different colors (red, blue, green, yellow) | |
on the corners of a square facing the center. The square is outlined by | |
four zones of matching colors at each corner. The red cylinder should be | |
placed at the red zone and facing the center of the square, and same for | |
the remaining colors.""" | |
def __init__(self): | |
super().__init__() | |
self.max_steps = 20 | |
self.lang_template = "arrange the {color} cylinder at the {color} corner of the square" | |
self.task_completed_desc = "done arranging cylinders." | |
self.additional_reset() | |
def reset(self, env): | |
super().reset(env) | |
# Define colors and corresponding zones | |
colors = ['red', 'blue', 'green', 'yellow'] | |
zones = ['zone-red', 'zone-blue', 'zone-green', 'zone-yellow'] | |
# Add zones at the corners of a square | |
zone_size = (0.05, 0.05, 0.005) | |
zone_urdf = 'zone/zone.urdf' | |
zone_poses = [] | |
for i in range(4): | |
zone_pose = self.get_random_pose(env, zone_size) | |
env.add_object(zone_urdf, zone_pose, 'fixed') | |
zone_poses.append(zone_pose) | |
# Add cylinders of different colors | |
cylinder_size = (0.02, 0.02, 0.08) | |
cylinder_urdf = 'cylinder/cylinder-template.urdf' | |
cylinders = [] | |
for i in range(4): | |
cylinder_pose = self.get_random_pose(env, cylinder_size) | |
color = utils.COLORS[colors[i]] | |
cylinder_id = env.add_object(cylinder_urdf, cylinder_pose, color=color) | |
cylinders.append(cylinder_id) | |
# Goal: each cylinder is in a different zone of the same color | |
for i in range(4): | |
self.add_goal(objs=[cylinders[i]], matches=np.ones((1, 1)), targ_poses=[zone_poses[i]], replace=False, | |
rotations=True, metric='pose', params=None, step_max_reward=1/4) | |
self.lang_goals.append(self.lang_template.format(color=colors[i])) |