From 34e795afafd2ce65df44f6cd277b448690e575c3 Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Sat, 20 Jun 2020 01:36:41 -0500
Subject: [PATCH] chore: fixtures

---
 fixtures/mama-kitty.entity.json      | 614 +++++++++++++++++++++++++++
 fixtures/rock-projectile.entity.json | 551 ++++++++++++++++++++++++
 fixtures/watering-can.entity.json    | 134 ++++++
 fixtures/yarn-ball.entity.json       |   1 +
 4 files changed, 1300 insertions(+)
 create mode 100644 fixtures/mama-kitty.entity.json
 create mode 100644 fixtures/rock-projectile.entity.json
 create mode 100644 fixtures/watering-can.entity.json
 create mode 100644 fixtures/yarn-ball.entity.json

diff --git a/fixtures/mama-kitty.entity.json b/fixtures/mama-kitty.entity.json
new file mode 100644
index 0000000..58d6630
--- /dev/null
+++ b/fixtures/mama-kitty.entity.json
@@ -0,0 +1,614 @@
+{
+  "traits": {
+    "alive": {
+      "params": {
+        "deathActions": {
+          "type": "actions",
+          "traversals": [
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "entity"
+                },
+                {
+                  "type": "key",
+                  "key": "playSound"
+                },
+                {
+                  "type": "invoke",
+                  "args": [
+                    {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "entity"
+                        },
+                        {
+                          "type": "key",
+                          "key": "deathSound"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            },
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "entity"
+                },
+                {
+                  "type": "key",
+                  "key": "killAllChildren"
+                },
+                {
+                  "type": "invoke",
+                  "args": []
+                }
+              ]
+            },
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "entity"
+                },
+                {
+                  "type": "key",
+                  "key": "transition"
+                },
+                {
+                  "type": "invoke",
+                  "args": [
+                    {
+                      "type": "literal",
+                      "value": {
+                        "opacity": 0,
+                        "visibleScaleX": 0.3,
+                        "visibleScaleY": 3
+                      }
+                    },
+                    {
+                      "type": "literal",
+                      "value": 0.2
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        }
+      },
+      "state": {
+        "life": 500,
+        "maxLife": 500
+      }
+    },
+    "animated": {
+      "params": {
+        "animations": {
+          "idle": {
+            "offset": [
+              0,
+              -8
+            ],
+            "uri": "/kitty.animation.json"
+          }
+        }
+      }
+    },
+    "audible": {
+      "params": {
+        "sounds": {
+          "deathSound": {
+            "uri": "/ded.sound.json"
+          }
+        }
+      }
+    },
+    "behaved": {
+      "params": {
+        "routines": {
+          "type": "routines",
+          "routines": {
+            "initial": {
+              "type": "routine",
+              "routine": {
+                "type": "actions",
+                "traversals": [
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "direction"
+                      }
+                    ],
+                    "value": {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "Math"
+                        },
+                        {
+                          "type": "key",
+                          "key": "floor"
+                        },
+                        {
+                          "type": "invoke",
+                          "args": [
+                            {
+                              "type": "traversal",
+                              "steps": [
+                                {
+                                  "type": "key",
+                                  "key": "Math"
+                                },
+                                {
+                                  "type": "key",
+                                  "key": "randomNumber"
+                                },
+                                {
+                                  "type": "invoke",
+                                  "args": [
+                                    {
+                                      "type": "literal",
+                                      "value": 0
+                                    },
+                                    {
+                                      "type": "literal",
+                                      "value": 4
+                                    }
+                                  ]
+                                }
+                              ]
+                            }
+                          ]
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "moveFor"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Math"
+                              },
+                              {
+                                "type": "key",
+                                "key": "Vector"
+                              },
+                              {
+                                "type": "key",
+                                "key": "fromDirection"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "traversal",
+                                    "steps": [
+                                      {
+                                        "type": "key",
+                                        "key": "entity"
+                                      },
+                                      {
+                                        "type": "key",
+                                        "key": "direction"
+                                      }
+                                    ]
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Math"
+                              },
+                              {
+                                "type": "key",
+                                "key": "randomNumber"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "literal",
+                                    "value": 0.25
+                                  },
+                                  {
+                                    "type": "literal",
+                                    "value": 2.5
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "isAnimating"
+                      }
+                    ],
+                    "value": {
+                      "type": "literal",
+                      "value": false
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "Timing"
+                      },
+                      {
+                        "type": "key",
+                        "key": "wait"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Math"
+                              },
+                              {
+                                "type": "key",
+                                "key": "randomNumber"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "literal",
+                                    "value": 1
+                                  },
+                                  {
+                                    "type": "literal",
+                                    "value": 4
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "direction"
+                      }
+                    ],
+                    "value": {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "Math"
+                        },
+                        {
+                          "type": "key",
+                          "key": "floor"
+                        },
+                        {
+                          "type": "invoke",
+                          "args": [
+                            {
+                              "type": "traversal",
+                              "steps": [
+                                {
+                                  "type": "key",
+                                  "key": "Math"
+                                },
+                                {
+                                  "type": "key",
+                                  "key": "randomNumber"
+                                },
+                                {
+                                  "type": "invoke",
+                                  "args": [
+                                    {
+                                      "type": "literal",
+                                      "value": 0
+                                    },
+                                    {
+                                      "type": "literal",
+                                      "value": 4
+                                    }
+                                  ]
+                                }
+                              ]
+                            }
+                          ]
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "Timing"
+                      },
+                      {
+                        "type": "key",
+                        "key": "wait"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Math"
+                              },
+                              {
+                                "type": "key",
+                                "key": "randomNumber"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "literal",
+                                    "value": 0.5
+                                  },
+                                  {
+                                    "type": "literal",
+                                    "value": 3
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "isAnimating"
+                      }
+                    ],
+                    "value": {
+                      "type": "literal",
+                      "value": true
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "spawnAt"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "literal",
+                            "value": "kitteh"
+                          },
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Utility"
+                              },
+                              {
+                                "type": "key",
+                                "key": "makeArray"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "traversal",
+                                    "steps": [
+                                      {
+                                        "type": "key",
+                                        "key": "entity"
+                                      },
+                                      {
+                                        "type": "key",
+                                        "key": "x"
+                                      }
+                                    ]
+                                  },
+                                  {
+                                    "type": "traversal",
+                                    "steps": [
+                                      {
+                                        "type": "key",
+                                        "key": "entity"
+                                      },
+                                      {
+                                        "type": "key",
+                                        "key": "y"
+                                      }
+                                    ]
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  }
+                ]
+              }
+            }
+          }
+        }
+      }
+    },
+    "collider": {
+      "params": {
+        "collidesWithGroups": [
+          "default",
+          "environmental",
+          "projectile"
+        ]
+      }
+    },
+    "directional": {
+      "params": {
+        "directionCount": 4
+      },
+      "state": {
+        "direction": 2
+      }
+    },
+    "emitter": {},
+    "existent": {
+      "state": {
+        "name": "Mama Kitty"
+      }
+    },
+    "layered": {},
+    "listed": {},
+    "lootable": {
+      "params": {
+        "table": [
+          {
+            "perc": 70,
+            "json": {
+              "uri": "/yarn-ball.entity.json"
+            }
+          },
+          {
+            "perc": 80,
+            "json": {
+              "uri": "/yarn-ball.entity.json"
+            }
+          },
+          {
+            "perc": 90,
+            "json": {
+              "uri": "/yarn-ball.entity.json"
+            }
+          }
+        ]
+      }
+    },
+    "mobile": {
+      "state": {
+        "speed": 40
+      }
+    },
+    "physical": {},
+    "positioned": {},
+    "roomed": {},
+    "shaped": {
+      "params": {
+        "shape": {
+          "type": "rectangle",
+          "position": [
+            0,
+            0
+          ],
+          "size": [
+            16,
+            8
+          ]
+        }
+      }
+    },
+    "visible": {
+      "state": {
+        "visibleScale": [
+          2,
+          2
+        ]
+      }
+    },
+    "vulnerable": {
+      "params": {
+        "types": [
+          "bio"
+        ]
+      }
+    },
+    "spawner": {
+      "params": {
+        "spawns": {
+          "kitteh": {
+            "uri": "/kitty.entity.json"
+          }
+        }
+      },
+      "state": {
+        "maxSpawns": 10
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/fixtures/rock-projectile.entity.json b/fixtures/rock-projectile.entity.json
new file mode 100644
index 0000000..fe97cc0
--- /dev/null
+++ b/fixtures/rock-projectile.entity.json
@@ -0,0 +1,551 @@
+{
+  "traits": {
+    "behaved": {
+      "params": {
+        "contextTypeHints": {
+          "wielder": "entity"
+        },
+        "routines": {
+          "type": "routines",
+          "routines": {
+            "initial": {
+              "type": "routine",
+              "routine": {
+                "type": "actions",
+                "traversals": [
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "setDoesNotCollideWith"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "wielder"
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "setPosition"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "wielder"
+                              },
+                              {
+                                "type": "key",
+                                "key": "position"
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "isVisible"
+                      }
+                    ],
+                    "value": {
+                      "type": "literal",
+                      "value": true
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "direction"
+                      }
+                    ],
+                    "value": {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "wielder"
+                        },
+                        {
+                          "type": "key",
+                          "key": "direction"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "moveFor"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "traversal",
+                            "steps": [
+                              {
+                                "type": "key",
+                                "key": "Math"
+                              },
+                              {
+                                "type": "key",
+                                "key": "Vector"
+                              },
+                              {
+                                "type": "key",
+                                "key": "fromDirection"
+                              },
+                              {
+                                "type": "invoke",
+                                "args": [
+                                  {
+                                    "type": "traversal",
+                                    "steps": [
+                                      {
+                                        "type": "key",
+                                        "key": "entity"
+                                      },
+                                      {
+                                        "type": "key",
+                                        "key": "direction"
+                                      }
+                                    ]
+                                  }
+                                ]
+                              }
+                            ]
+                          },
+                          {
+                            "type": "literal",
+                            "value": 0.5
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "destroy"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": []
+                      }
+                    ]
+                  }
+                ]
+              }
+            },
+            "reflect": {
+              "type": "routine",
+              "routine": {
+                "type": "actions",
+                "traversals": [
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "isColliding"
+                      }
+                    ],
+                    "value": {
+                      "type": "literal",
+                      "value": false
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "isHarmful"
+                      }
+                    ],
+                    "value": {
+                      "type": "literal",
+                      "value": false
+                    }
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "Flow"
+                      },
+                      {
+                        "type": "key",
+                        "key": "parallel"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": [
+                          {
+                            "type": "actions",
+                            "traversals": [
+                              {
+                                "type": "traversal",
+                                "steps": [
+                                  {
+                                    "type": "key",
+                                    "key": "entity"
+                                  },
+                                  {
+                                    "type": "key",
+                                    "key": "transition"
+                                  },
+                                  {
+                                    "type": "invoke",
+                                    "args": [
+                                      {
+                                        "type": "literal",
+                                        "value": {
+                                          "opacity": 0,
+                                          "speed": 0
+                                        }
+                                      },
+                                      {
+                                        "type": "literal",
+                                        "value": 0.2
+                                      }
+                                    ]
+                                  }
+                                ]
+                              },
+                              {
+                                "type": "traversal",
+                                "steps": [
+                                  {
+                                    "type": "key",
+                                    "key": "entity"
+                                  },
+                                  {
+                                    "type": "key",
+                                    "key": "moveFor"
+                                  },
+                                  {
+                                    "type": "invoke",
+                                    "args": [
+                                      {
+                                        "type": "traversal",
+                                        "steps": [
+                                          {
+                                            "type": "key",
+                                            "key": "Math"
+                                          },
+                                          {
+                                            "type": "key",
+                                            "key": "Vector"
+                                          },
+                                          {
+                                            "type": "key",
+                                            "key": "sub"
+                                          },
+                                          {
+                                            "type": "invoke",
+                                            "args": [
+                                              {
+                                                "type": "traversal",
+                                                "steps": [
+                                                  {
+                                                    "type": "key",
+                                                    "key": "entity"
+                                                  },
+                                                  {
+                                                    "type": "key",
+                                                    "key": "position"
+                                                  }
+                                                ]
+                                              },
+                                              {
+                                                "type": "traversal",
+                                                "steps": [
+                                                  {
+                                                    "type": "key",
+                                                    "key": "other"
+                                                  },
+                                                  {
+                                                    "type": "key",
+                                                    "key": "position"
+                                                  }
+                                                ]
+                                              }
+                                            ]
+                                          }
+                                        ]
+                                      },
+                                      {
+                                        "type": "literal",
+                                        "value": 0.2
+                                      }
+                                    ]
+                                  }
+                                ]
+                              }
+                            ]
+                          }
+                        ]
+                      }
+                    ]
+                  },
+                  {
+                    "type": "traversal",
+                    "steps": [
+                      {
+                        "type": "key",
+                        "key": "entity"
+                      },
+                      {
+                        "type": "key",
+                        "key": "destroy"
+                      },
+                      {
+                        "type": "invoke",
+                        "args": []
+                      }
+                    ]
+                  }
+                ]
+              }
+            }
+          }
+        }
+      },
+      "state": {
+        "isBehaving": false
+      }
+    },
+    "collider": {
+      "params": {
+        "collisionGroup": "projectile",
+        "collisionStartActions": {
+          "type": "actions",
+          "traversals": [
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "entity"
+                },
+                {
+                  "type": "key",
+                  "key": "context"
+                },
+                {
+                  "type": "key",
+                  "key": "add"
+                },
+                {
+                  "type": "invoke",
+                  "args": [
+                    {
+                      "type": "literal",
+                      "value": "other"
+                    },
+                    {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "other"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            },
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "entity"
+                },
+                {
+                  "type": "key",
+                  "key": "currentRoutine"
+                }
+              ],
+              "value": {
+                "type": "literal",
+                "value": "reflect"
+              }
+            }
+          ]
+        },
+        "isSensor": true
+      }
+    },
+    "directional": {
+      "params": {
+        "directionCount": 4
+      }
+    },
+    "emitter": {
+      "params": {
+        "particles": {
+          "harmful": {
+            "rate": 0.0125,
+            "count": 5,
+            "traits": {
+              "primitive": {
+                "params": {
+                  "primitives": [
+                    {
+                      "type": "circle",
+                      "radius": 0.5,
+                      "line": {
+                        "rgba": [
+                          128,
+                          128,
+                          128
+                        ]
+                      },
+                      "fill": {
+                        "rgba": [
+                          128,
+                          128,
+                          128
+                        ]
+                      }
+                    }
+                  ]
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "existent": {
+      "state": {
+        "name": "Rock (projectile)"
+      }
+    },
+    "harmful": {
+      "params": {
+        "harmKnockback": 100,
+        "harmSpecs": [
+          {
+            "type": "blunt",
+            "power": 50,
+            "variance": 0.1
+          }
+        ]
+      }
+    },
+    "layered": {},
+    "listed": {},
+    "mobile": {
+      "state": {
+        "speed": 200
+      }
+    },
+    "physical": {},
+    "pictured": {
+      "params": {
+        "images": {
+          "initial": {
+            "offset": [
+              0,
+              0
+            ],
+            "size": [
+              12,
+              12
+            ],
+            "uri": "/rock.png"
+          }
+        }
+      }
+    },
+    "positioned": {},
+    "roomed": {},
+    "shaped": {
+      "params": {
+        "shape": {
+          "type": "rectangle",
+          "position": [
+            0,
+            0
+          ],
+          "size": [
+            12,
+            12
+          ]
+        }
+      }
+    },
+    "visible": {
+      "state": {
+        "isVisible": false
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/fixtures/watering-can.entity.json b/fixtures/watering-can.entity.json
new file mode 100644
index 0000000..4903f7a
--- /dev/null
+++ b/fixtures/watering-can.entity.json
@@ -0,0 +1,134 @@
+{
+  "traits": {
+    "behaved": {
+      "params": {
+        "contextTypeHints": {
+          "item": "entity",
+          "target": "vector",
+          "wielder": "entity"
+        }
+      }
+    },
+    "existent": {},
+    "item": {
+      "params": {
+        "itemActions": {
+          "type": "actions",
+          "traversals": [
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "item"
+                },
+                {
+                  "type": "key",
+                  "key": "useTool"
+                },
+                {
+                  "type": "invoke",
+                  "args": []
+                }
+              ]
+            }
+          ]
+        },
+        "slotImageUris": {
+          "default": "/watering-can.png"
+        }
+      }
+    },
+    "tool": {
+      "params": {
+        "condition": {
+          "type": "condition",
+          "operator": "is",
+          "operands": [
+            {
+              "type": "literal",
+              "value": 6
+            },
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "wielder"
+                },
+                {
+                  "type": "key",
+                  "key": "layer"
+                },
+                {
+                  "type": "key",
+                  "key": "tileAt"
+                },
+                {
+                  "type": "invoke",
+                  "args": [
+                    {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "target"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        "actions": {
+          "type": "actions",
+          "traversals": [
+            {
+              "type": "traversal",
+              "steps": [
+                {
+                  "type": "key",
+                  "key": "wielder"
+                },
+                {
+                  "type": "key",
+                  "key": "layer"
+                },
+                {
+                  "type": "key",
+                  "key": "setTileAt"
+                },
+                {
+                  "type": "invoke",
+                  "args": [
+                    {
+                      "type": "traversal",
+                      "steps": [
+                        {
+                          "type": "key",
+                          "key": "target"
+                        }
+                      ]
+                    },
+                    {
+                      "type": "literal",
+                      "value": 7
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        "target": {
+          "type": "projection",
+          "distance": 1,
+          "length": 1,
+          "width": 1
+        }
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/fixtures/yarn-ball.entity.json b/fixtures/yarn-ball.entity.json
new file mode 100644
index 0000000..5f95d35
--- /dev/null
+++ b/fixtures/yarn-ball.entity.json
@@ -0,0 +1 @@
+{"traits":{"collider":{"params":{"isSensor":true}},"existent":{"state":{"name":"Yarn Ball"}},"item":{"params":{"slotImageUris":{"default":"/yarn-ball.png"}}},"layered":{},"listed":{},"magnetic":{},"mobile":{},"pictured":{"params":{"images":{"initial":{"offset":[0,0],"size":[8,8],"uri":"/yarn-ball.png"}}}},"positioned":{},"roomed":{},"shaped":{"params":{"shape":{"type":"rectangle","position":[0,0],"size":[16,16]}}},"visible":{}}}
\ No newline at end of file