Class: Physics
physics/physics.Physics
Handles physics for bodies added to the engine.
Raycasting can only check against objects in the phsyics engine's collisions space.
At the start of each update call the static G_CONF variable is set to the instances CONFIG variable.
This allows for easy access to the physics config from other parts of the physics system.
Implements
Constructors
constructor
• new Physics(gravity?)
Create an Physics instance.
Parameters
| Name | Type | Description |
|---|---|---|
gravity? | vec2 | The gravitional force applied to objects in the system |
Defined in
src/physics/physics.ts:169
Properties
CONFIG
• CONFIG: Object
Type declaration
| Name | Type |
|---|---|
ACUMMULATE_IMPULSE | boolean |
CACHED_CONTACTS_TOLERANCE | number |
CONSTRAINT_ITERATIONS | number |
EPA_MAX_ITERATIONS | number |
EPA_TOLERANCE | number |
POINT_SIZE | number |
POSITION_DAMPING | number |
POSITION_ITERATIONS | number |
POSITION_SCALE | number |
POSITION_SLOP | number |
POSITION_WARMING | number |
RESTITUTION_THRESHOLD | number |
VELOCITY_ITERATIONS | number |
WARM_IMPULSE | boolean |
Defined in
src/physics/physics.ts:113
broadphaseTime
• broadphaseTime: number = 0
The time in ms that the last broadphase collision detection step took.
Defined in
src/physics/physics.ts:132
collisionSolveTime
• collisionSolveTime: number = 0
The time in ms that the last collision solving steps took.
Defined in
src/physics/physics.ts:142
collisionsSpace
• collisionsSpace: CollisionsSpace
Defined in
src/physics/physics.ts:119
constraintSpace
• constraintSpace: ConstraintSpace
Defined in
src/physics/physics.ts:120
constraintTime
• constraintTime: number = 0
The time in ms that the last constraint solving steps took.
Defined in
src/physics/physics.ts:147
debug
• debug: boolean = false
Enable/disable debug tools.
Defined in
src/physics/physics.ts:162
dynamicsSpace
• dynamicsSpace: DynamicsSpace
Defined in
src/physics/physics.ts:118
dynamicsTime
• dynamicsTime: number = 0
The time in ms that the last dynamics solving steps took.
Defined in
src/physics/physics.ts:152
fluidTime
• fluidTime: number = 0
The time in ms that the last fluid solving steps took.
Defined in
src/physics/physics.ts:157
fluids
• fluids: Fluid[] = []
Defined in
src/physics/physics.ts:122
gravity
• Private gravity: vec2
Defined in
src/physics/physics.ts:115
narrowphaseTime
• narrowphaseTime: number = 0
The time in ms that the last narrowphase collision detection step took.
Defined in
src/physics/physics.ts:137
physicsTime
• physicsTime: number = 0
The amount of time in ms that the last physics step took.
Defined in
src/physics/physics.ts:127
G_CONF
▪ Static G_CONF: Object
Type declaration
| Name | Type |
|---|---|
ACUMMULATE_IMPULSE | boolean |
CACHED_CONTACTS_TOLERANCE | number |
CONSTRAINT_ITERATIONS | number |
EPA_MAX_ITERATIONS | number |
EPA_TOLERANCE | number |
POINT_SIZE | number |
POSITION_DAMPING | number |
POSITION_ITERATIONS | number |
POSITION_SCALE | number |
POSITION_SLOP | number |
POSITION_WARMING | number |
RESTITUTION_THRESHOLD | number |
VELOCITY_ITERATIONS | number |
WARM_IMPULSE | boolean |
Defined in
src/physics/physics.ts:111
Methods
addBodies
▸ addBodies(...bodies): void
Adds the given bodies to the world's dynamics and collisions spaces.
Parameters
| Name | Type | Description |
|---|---|---|
...bodies | RigidBody[] | The bodies to add |
Returns
void
Defined in
src/physics/physics.ts:383
addBody
▸ addBody(body): void
Adds a {@link Rigidbody} to the world's dynamics and collisions spaces.
Parameters
| Name | Type | Description |
|---|---|---|
body | RigidBody | The body to add |
Returns
void
Defined in
src/physics/physics.ts:373
addCollisionObj
▸ addCollisionObj(c): void
Adds a CollisionObject to the world's collisions space.
Parameters
| Name | Type | Description |
|---|---|---|
c | CollisionObject | The collision object to add |
Returns
void
Defined in
src/physics/physics.ts:355
addConstraint
▸ addConstraint(constraint): void
Adds a Constraint to the world's constraint space.
Parameters
| Name | Type | Description |
|---|---|---|
constraint | Constraint | The constraint to add |
Returns
void
Defined in
src/physics/physics.ts:441
addDynamicsObj
▸ addDynamicsObj(obj): void
Adds a RigidBody to the world's dynamics space.
Parameters
| Name | Type | Description |
|---|---|---|
obj | RigidBody | The object to add |
Returns
void
Defined in
src/physics/physics.ts:364
addFluid
▸ addFluid(fluid): void
Adds the given fluid to the physics world.
Parameters
| Name | Type | Description |
|---|---|---|
fluid | Fluid | The fluid to add |
Returns
void
Defined in
src/physics/physics.ts:466
drawDebug
▸ drawDebug(): void
Returns
void
Defined in
src/physics/physics.ts:273
getGravity
▸ getGravity(): vec2
Gets the gravity vector the physics world is using.
Returns
vec2
The gravity in use
Defined in
src/physics/physics.ts:513
pick
▸ pick(point): CollisionObject[]
Point pick objects.
NOTE: Picking only checks objects in the CollisionsSpace.
Parameters
| Name | Type | Description |
|---|---|---|
point | vec2 | The point to pick objects at |
Returns
Defined in
src/physics/physics.ts:311
raycast
▸ raycast(ray): CollisionObject[]
raycast objects.
NOTE: Raycast only checks objects in the CollisionsSpace.
Parameters
| Name | Type | Description |
|---|---|---|
ray | Ray | The ray to cast |
Returns
Defined in
src/physics/physics.ts:335
removeAllBodies
▸ removeAllBodies(): void
Removes all bodies from the world's dynamics and collision spaces.
Returns
void
Defined in
src/physics/physics.ts:431
removeAllConstraints
▸ removeAllConstraints(): void
Removes all constraints from the world.
Returns
void
Defined in
src/physics/physics.ts:457
removeAllFluids
▸ removeAllFluids(): void
Removes all fluids from the world.
Returns
void
Defined in
src/physics/physics.ts:491
removeBodies
▸ removeBodies(...bodies): void
Removes the given bodies from the world's dynamics and collision spaces.
Parameters
| Name | Type | Description |
|---|---|---|
...bodies | RigidBody[] | The bodies to remove |
Returns
void
Defined in
src/physics/physics.ts:422
removeBody
▸ removeBody(body): void
Removes a {@link Rigidbody} from the world's dynamics and collisions spaces.
Parameters
| Name | Type | Description |
|---|---|---|
body | RigidBody | The body to remove |
Returns
void
Defined in
src/physics/physics.ts:412
removeCollisionObj
▸ removeCollisionObj(c): void
Removes a CollisionObject from the world's collisions space.
Parameters
| Name | Type | Description |
|---|---|---|
c | CollisionObject | The collision object to remove |
Returns
void
Defined in
src/physics/physics.ts:394
removeConstraint
▸ removeConstraint(constraint): void
Removes a Constraint from the world's constraint space.
Parameters
| Name | Type | Description |
|---|---|---|
constraint | Constraint | The constraint to remove |
Returns
void
Defined in
src/physics/physics.ts:450
removeDynamicsObj
▸ removeDynamicsObj(obj): void
Removes a RigidBody from the world's dynamics space.
Parameters
| Name | Type | Description |
|---|---|---|
obj | RigidBody | The object to remove |
Returns
void
Defined in
src/physics/physics.ts:403
removeFluid
▸ removeFluid(fluid): void
Removes the given fluid from the physics world.
Parameters
| Name | Type | Description |
|---|---|---|
fluid | Fluid | The fluid to remove |
Returns
void
Defined in
src/physics/physics.ts:480
setGravity
▸ setGravity(gravity): void
Sets the gravity to use in the physics world.
Parameters
| Name | Type | Description |
|---|---|---|
gravity | vec2 | The new gravity to use |
Returns
void
Defined in
src/physics/physics.ts:502
update
▸ update(ts): void
Steps the physics world forward by the given delta time.
Order of updates is very important.
Parameters
| Name | Type | Description |
|---|---|---|
ts | TimeStep | The TimeStep for this update. |
Returns
void
Implementation of
Defined in
src/physics/physics.ts:195