# Graphics arc + matter collision?

**URL:** <https://phaser.discourse.group/t/graphics-arc-matter-collision/4954>\
**Category:** Phaser 3\
**Created:** [January 21, 2020, 4:01pm UTC](https://phaser.discourse.group/t/graphics-arc-matter-collision/4954 "2020-01-21T16:01:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![basiclaser](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/basiclaser/32/242_2.png) [@basiclaser](https://phaser.discourse.group/u/basiclaser)\
**Post date:** [January 21, 2020, 4:01pm UTC](https://phaser.discourse.group/t/graphics-arc-matter-collision/4954/1 "2020-01-21T16:01:22Z")

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I would like to add a matter collision body to a graphics arc. How would you approach this? can i attach it directly to the arc, or convert the arc to points?

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**Author:** ![basiclaser](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/basiclaser/32/242_2.png) [@basiclaser](https://phaser.discourse.group/u/basiclaser)\
**Post date:** [January 21, 2020, 7:15pm UTC](https://phaser.discourse.group/t/graphics-arc-matter-collision/4954/2 "2020-01-21T19:15:55Z")

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I should mention that the arc also spins around, and scales up and down ( is destroyed and redrawn ) - I’m really not sure how to implement the collision. conceptually the ship is supposed to navigate through the gaps in the ring.