physics

Description

This library has methods for applying physics and setting Colliders on Entities.

Functions

applyForce

You can directly apply forces (linear and angular) to any entity with a physics collider. These forces are applied in the next physics simulation update, which takes place at regular intervals. The function accepts a 3D vector to define the force direction and magnitude.

警告

This is dependent on the frequency of calls to requestAnimationFrame() or your devices refresh rate.

ecs.physics.applyForce(world, eid, forceX, forceY, forceZ) // -> void

applyImpulse

This function is used to apply a one-time instantaneous force to a physics collider, altering its velocity based on the given impulse vector. This method is useful for events that require a quick, single action response, such as jumping, punching, or a sudden push.

ecs.physics.applyImpulse(world, eid, impulseX, impulseY, impulseZ) // -> void

applyTorque

You can directly apply forces (linear and angular) to any entity with a physics collider. These forces are applied in the next physics simulation update, which takes place at regular intervals. The function accepts a 3D vector to define the force direction and magnitude.

警告

This is dependent on the frequency of calls to requestAnimationFrame() or your devices refresh rate.

ecs.physics.applyTorque(world, eid, torqueX, torqueY, torqueZ) // -> void

getWorldGravity

This is a simple getter function that returns the current force of gravity applied to every object in the scene. The return value might change depending on the time the function was executed.

ecs.physics.getWorldGravity(world) // -> number

registerConvexShape

Register a convex shape.

ecs.physics.registerConvexShape(world, vertices) // -> eid of the registered shape

getLinearVelocity

Get the linear velocity of an entity.

ecs.physics.getLinearVelocity(world, eid) // -> number

setLinearVelocity

Set the linear velocity of an entity.

ecs.physics.setLinearVelocity(world, eid, velocityX, velocityY, velocityZ) // -> void

setWorldGravity

Set the world gravity.

ecs.physics.setWorldGravity(world, gravity) // -> void

unregisterConvexShape

Unregister a convex shape.

ecs.physics.unregisterConvexShape(world, id) // -> void

Events

COLLISION_START_EVENT

Emitted when collision has begun with an entity.

ecs.physics.COLLISION_START_EVENT.data : { other }

Properties

Property	Type	Description
other	eid	The eid of the collided entity

COLLISION_END_EVENT

Emitted when collision has stopped with an entity.

ecs.physics.COLLISION_END_EVENT.data : { other }

Properties

Property	Type	Description
other	eid	The eid of the collided entity