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phaser/plugins/impact/Body.js
Richard Davey 20fabba0b9 Impact Physics is now removed from the core API
2020-02-04 14:52:04 +00:00

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/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2020 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var Class = require('../../utils/Class');
var COLLIDES = require('./COLLIDES');
var GetVelocity = require('./GetVelocity');
var TYPE = require('./TYPE');
var UpdateMotion = require('./UpdateMotion');
/**
* @callback Phaser.Types.Physics.Impact.BodyUpdateCallback
* @since 3.0.0
*
* @param {Phaser.Physics.Impact.Body} body - [description]
*/
/**
* @classdesc
* An Impact.js compatible physics body.
* This re-creates the properties you'd get on an Entity and the math needed to update them.
*
* @class Body
* @memberof Phaser.Physics.Impact
* @constructor
* @since 3.0.0
*
* @param {Phaser.Physics.Impact.World} world - [description]
* @param {number} x - [description]
* @param {number} y - [description]
* @param {number} [sx=16] - [description]
* @param {number} [sy=16] - [description]
*/
var Body = new Class({
initialize:
function Body (world, x, y, sx, sy)
{
if (sx === undefined) { sx = 16; }
if (sy === undefined) { sy = sx; }
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#world
* @type {Phaser.Physics.Impact.World}
* @since 3.0.0
*/
this.world = world;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#gameObject
* @type {Phaser.GameObjects.GameObject}
* @default null
* @since 3.0.0
*/
this.gameObject = null;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#enabled
* @type {boolean}
* @default true
* @since 3.0.0
*/
this.enabled = true;
/**
* The ImpactBody, ImpactSprite or ImpactImage object that owns this Body, if any.
*
* @name Phaser.Physics.Impact.Body#parent
* @type {?(Phaser.Physics.Impact.ImpactBody|Phaser.Physics.Impact.ImpactImage|Phaser.Physics.Impact.ImpactSprite)}
* @since 3.0.0
*/
this.parent;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#id
* @type {integer}
* @since 3.0.0
*/
this.id = world.getNextID();
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#name
* @type {string}
* @default ''
* @since 3.0.0
*/
this.name = '';
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#size
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.size = { x: sx, y: sy };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#offset
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.offset = { x: 0, y: 0 };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#pos
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.pos = { x: x, y: y };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#last
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.last = { x: x, y: y };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#vel
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.vel = { x: 0, y: 0 };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#accel
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.accel = { x: 0, y: 0 };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#friction
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.friction = { x: 0, y: 0 };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#maxVel
* @type {Phaser.Types.Math.Vector2Like}
* @since 3.0.0
*/
this.maxVel = { x: world.defaults.maxVelocityX, y: world.defaults.maxVelocityY };
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#standing
* @type {boolean}
* @default false
* @since 3.0.0
*/
this.standing = false;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#gravityFactor
* @type {number}
* @since 3.0.0
*/
this.gravityFactor = world.defaults.gravityFactor;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#bounciness
* @type {number}
* @since 3.0.0
*/
this.bounciness = world.defaults.bounciness;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#minBounceVelocity
* @type {number}
* @since 3.0.0
*/
this.minBounceVelocity = world.defaults.minBounceVelocity;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#accelGround
* @type {number}
* @default 0
* @since 3.0.0
*/
this.accelGround = 0;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#accelAir
* @type {number}
* @default 0
* @since 3.0.0
*/
this.accelAir = 0;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#jumpSpeed
* @type {number}
* @default 0
* @since 3.0.0
*/
this.jumpSpeed = 0;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#type
* @type {Phaser.Physics.Impact.TYPE}
* @since 3.0.0
*/
this.type = TYPE.NONE;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#checkAgainst
* @type {Phaser.Physics.Impact.TYPE}
* @since 3.0.0
*/
this.checkAgainst = TYPE.NONE;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#collides
* @type {Phaser.Physics.Impact.COLLIDES}
* @since 3.0.0
*/
this.collides = COLLIDES.NEVER;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#debugShowBody
* @type {boolean}
* @since 3.0.0
*/
this.debugShowBody = world.defaults.debugShowBody;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#debugShowVelocity
* @type {boolean}
* @since 3.0.0
*/
this.debugShowVelocity = world.defaults.debugShowVelocity;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#debugBodyColor
* @type {integer}
* @since 3.0.0
*/
this.debugBodyColor = world.defaults.bodyDebugColor;
/**
* [description]
*
* @name Phaser.Physics.Impact.Body#updateCallback
* @type {?Phaser.Types.Physics.Impact.BodyUpdateCallback}
* @since 3.0.0
*/
this.updateCallback;
/**
* min 44 deg, max 136 deg
*
* @name Phaser.Physics.Impact.Body#slopeStanding
* @type {{ min: number, max: number }}
* @since 3.0.0
*/
this.slopeStanding = { min: 0.767944870877505, max: 2.3736477827122884 };
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#reset
* @since 3.0.0
*
* @param {number} x - [description]
* @param {number} y - [description]
*/
reset: function (x, y)
{
this.pos = { x: x, y: y };
this.last = { x: x, y: y };
this.vel = { x: 0, y: 0 };
this.accel = { x: 0, y: 0 };
this.friction = { x: 0, y: 0 };
this.maxVel = { x: 100, y: 100 };
this.standing = false;
this.gravityFactor = 1;
this.bounciness = 0;
this.minBounceVelocity = 40;
this.accelGround = 0;
this.accelAir = 0;
this.jumpSpeed = 0;
this.type = TYPE.NONE;
this.checkAgainst = TYPE.NONE;
this.collides = COLLIDES.NEVER;
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#update
* @since 3.0.0
*
* @param {number} delta - The delta time in ms since the last frame. This is a smoothed and capped value based on the FPS rate.
*/
update: function (delta)
{
var pos = this.pos;
this.last.x = pos.x;
this.last.y = pos.y;
this.vel.y += this.world.gravity * delta * this.gravityFactor;
this.vel.x = GetVelocity(delta, this.vel.x, this.accel.x, this.friction.x, this.maxVel.x);
this.vel.y = GetVelocity(delta, this.vel.y, this.accel.y, this.friction.y, this.maxVel.y);
var mx = this.vel.x * delta;
var my = this.vel.y * delta;
var res = this.world.collisionMap.trace(pos.x, pos.y, mx, my, this.size.x, this.size.y);
if (this.handleMovementTrace(res))
{
UpdateMotion(this, res);
}
var go = this.gameObject;
if (go)
{
go.x = (pos.x - this.offset.x) + go.displayOriginX * go.scaleX;
go.y = (pos.y - this.offset.y) + go.displayOriginY * go.scaleY;
}
if (this.updateCallback)
{
this.updateCallback(this);
}
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#drawDebug
* @since 3.0.0
*
* @param {Phaser.GameObjects.Graphics} graphic - [description]
*/
drawDebug: function (graphic)
{
var pos = this.pos;
if (this.debugShowBody)
{
graphic.lineStyle(1, this.debugBodyColor, 1);
graphic.strokeRect(pos.x, pos.y, this.size.x, this.size.y);
}
if (this.debugShowVelocity)
{
var x = pos.x + this.size.x / 2;
var y = pos.y + this.size.y / 2;
graphic.lineStyle(1, this.world.defaults.velocityDebugColor, 1);
graphic.lineBetween(x, y, x + this.vel.x, y + this.vel.y);
}
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#willDrawDebug
* @since 3.0.0
*
* @return {boolean} [description]
*/
willDrawDebug: function ()
{
return (this.debugShowBody || this.debugShowVelocity);
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#skipHash
* @since 3.0.0
*
* @return {boolean} [description]
*/
skipHash: function ()
{
return (!this.enabled || (this.type === 0 && this.checkAgainst === 0 && this.collides === 0));
},
/**
* Determines whether the body collides with the `other` one or not.
*
* @method Phaser.Physics.Impact.Body#touches
* @since 3.0.0
*
* @param {Phaser.Physics.Impact.Body} other - [description]
*
* @return {boolean} [description]
*/
touches: function (other)
{
return !(
this.pos.x >= other.pos.x + other.size.x ||
this.pos.x + this.size.x <= other.pos.x ||
this.pos.y >= other.pos.y + other.size.y ||
this.pos.y + this.size.y <= other.pos.y
);
},
/**
* Reset the size and position of the physics body.
*
* @method Phaser.Physics.Impact.Body#resetSize
* @since 3.0.0
*
* @param {number} x - The x coordinate to position the body.
* @param {number} y - The y coordinate to position the body.
* @param {number} width - The width of the body.
* @param {number} height - The height of the body.
*
* @return {Phaser.Physics.Impact.Body} This Body object.
*/
resetSize: function (x, y, width, height)
{
this.pos.x = x;
this.pos.y = y;
this.size.x = width;
this.size.y = height;
return this;
},
/**
* Export this body object to JSON.
*
* @method Phaser.Physics.Impact.Body#toJSON
* @since 3.0.0
*
* @return {Phaser.Types.Physics.Impact.JSONImpactBody} JSON representation of this body object.
*/
toJSON: function ()
{
var output = {
name: this.name,
size: { x: this.size.x, y: this.size.y },
pos: { x: this.pos.x, y: this.pos.y },
vel: { x: this.vel.x, y: this.vel.y },
accel: { x: this.accel.x, y: this.accel.y },
friction: { x: this.friction.x, y: this.friction.y },
maxVel: { x: this.maxVel.x, y: this.maxVel.y },
gravityFactor: this.gravityFactor,
bounciness: this.bounciness,
minBounceVelocity: this.minBounceVelocity,
type: this.type,
checkAgainst: this.checkAgainst,
collides: this.collides
};
return output;
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#fromJSON
* @todo Code it!
* @since 3.0.0
*
* @param {object} config - [description]
*/
fromJSON: function ()
{
},
/**
* Can be overridden by user code
*
* @method Phaser.Physics.Impact.Body#check
* @since 3.0.0
*
* @param {Phaser.Physics.Impact.Body} other - [description]
*/
check: function ()
{
},
/**
* Can be overridden by user code
*
* @method Phaser.Physics.Impact.Body#collideWith
* @since 3.0.0
*
* @param {Phaser.Physics.Impact.Body} other - [description]
* @param {string} axis - [description]
*/
collideWith: function (other, axis)
{
if (this.parent && this.parent._collideCallback)
{
this.parent._collideCallback.call(this.parent._callbackScope, this, other, axis);
}
},
/**
* Can be overridden by user code but must return a boolean.
*
* @method Phaser.Physics.Impact.Body#handleMovementTrace
* @since 3.0.0
*
* @param {number} res - [description]
*
* @return {boolean} [description]
*/
handleMovementTrace: function ()
{
return true;
},
/**
* [description]
*
* @method Phaser.Physics.Impact.Body#destroy
* @since 3.0.0
*/
destroy: function ()
{
this.world.remove(this);
this.enabled = false;
this.world = null;
this.gameObject = null;
this.parent = null;
}
});
module.exports = Body;
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