new QuadTree(physicsManager, x, y, width, height, maxObjects, maxLevels, level)
QuadTree Constructor
Parameters:
| Name | Type | Description |
|---|---|---|
physicsManager |
Description | Description. |
x |
Description | Description. |
y |
Description | Description. |
width |
number | The width of your game in game pixels. |
height |
number | The height of your game in game pixels. |
maxObjects |
number | Description. |
maxLevels |
number | Description. |
level |
number | Description. |
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Methods
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clear()
-
/* Clear the quadtree.
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getIndex(rect) → {number}
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/* Determine which node the object belongs to.
Parameters:
Name Type Description rectobject Description.
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Returns:
index - Index of the subnode (0-3), or -1 if rect cannot completely fit within a subnode and is part of the parent node.
- Type
- number
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insert(body)
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/* Insert the object into the node. If the node exceeds the capacity, it will split and add all objects to their corresponding subnodes.
Parameters:
Name Type Description bodyobject Description.
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retrieve(rect) → {array}
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/* Return all objects that could collide with the given object.
Parameters:
Name Type Description rectobject Description.
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Returns:
- Array with all detected objects.
- Type
- array
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split()
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/* Split the node into 4 subnodes
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