Source.Python forums

# ../headshot_trace/headshot_trace.py

# Source.Python
from commands.client import ClientCommand
from entities.entity import BaseEntity
from players.dictionary import PlayerDictionary
from players.entity import Player


class PlayerHT(Player):
    caching = True

    def get_head_in_crosshair(self):
        """Returns the index of the player whose head we're aiming at."""
        # Fire and store a GameTrace() of the player's current view.
        trace = self.get_trace_ray()

        # Did the trace hit something?
        if trace.did_hit():
            # Is that something a player?
            if BaseEntity(trace.entity_index).is_player():
                # Did the trace hit their head?
                if trace.hitbox == 0:
                    return trace.entity_index

        return None


player_instances = PlayerDictionary(PlayerHT)


@ClientCommand('+lookatweapon')
def inspect_weapon(command, index):
    player = player_instances[index]

    target_index = player.get_head_in_crosshair()
    # Make sure we actually found a head.
    if target_index is not None:
        # Apply 200 damage to the other player.
        player_instances[target_index].take_damage(
            damage=200, attacker_index=index)