/**
* Constant values used in pixi
*
* @lends PIXI
*/
var CONST = {
/**
* String of the current PIXI version.
*
* @static
* @constant
* @type {string}
*/
VERSION: '__VERSION__',
/**
* Two Pi.
*
* @static
* @constant
* @type {number}
*/
PI_2: Math.PI * 2,
/**
* Conversion factor for converting radians to degrees.
*
* @static
* @constant
* @type {number}
*/
RAD_TO_DEG: 180 / Math.PI,
/**
* Conversion factor for converting degrees to radians.
*
* @static
* @constant
* @type {number}
*/
DEG_TO_RAD: Math.PI / 180,
/**
* Target frames per millisecond.
*
* @static
* @constant
* @type {number}
* @default 0.06
*/
TARGET_FPMS: 0.06,
/**
* Constant to identify the Renderer Type.
*
* @static
* @constant
* @type {object}
* @property {number} UNKNOWN - Unknown render type.
* @property {number} WEBGL - WebGL render type.
* @property {number} CANVAS - Canvas render type.
*/
RENDERER_TYPE: {
UNKNOWN: 0,
WEBGL: 1,
CANVAS: 2
},
/**
* Various blend modes supported by PIXI.
*
* IMPORTANT - The WebGL renderer only supports the NORMAL, ADD, MULTIPLY and SCREEN blend modes.
* Anything else will silently act like NORMAL.
*
* @static
* @constant
* @type {object}
* @property {number} NORMAL
* @property {number} ADD
* @property {number} MULTIPLY
* @property {number} SCREEN
* @property {number} OVERLAY
* @property {number} DARKEN
* @property {number} LIGHTEN
* @property {number} COLOR_DODGE
* @property {number} COLOR_BURN
* @property {number} HARD_LIGHT
* @property {number} SOFT_LIGHT
* @property {number} DIFFERENCE
* @property {number} EXCLUSION
* @property {number} HUE
* @property {number} SATURATION
* @property {number} COLOR
* @property {number} LUMINOSITY
*/
BLEND_MODES: {
NORMAL: 0,
ADD: 1,
MULTIPLY: 2,
SCREEN: 3,
OVERLAY: 4,
DARKEN: 5,
LIGHTEN: 6,
COLOR_DODGE: 7,
COLOR_BURN: 8,
HARD_LIGHT: 9,
SOFT_LIGHT: 10,
DIFFERENCE: 11,
EXCLUSION: 12,
HUE: 13,
SATURATION: 14,
COLOR: 15,
LUMINOSITY: 16
},
/**
* Various webgl draw modes. These can be used to specify which GL drawMode to use
* under certain situations and renderers.
*
* @static
* @constant
* @type {object}
* @property {number} POINTS
* @property {number} LINES
* @property {number} LINE_LOOP
* @property {number} LINE_STRIP
* @property {number} TRIANGLES
* @property {number} TRIANGLE_STRIP
* @property {number} TRIANGLE_FAN
*/
DRAW_MODES: {
POINTS: 0,
LINES: 1,
LINE_LOOP: 2,
LINE_STRIP: 3,
TRIANGLES: 4,
TRIANGLE_STRIP: 5,
TRIANGLE_FAN: 6
},
/**
* The scale modes that are supported by pixi.
*
* The DEFAULT scale mode affects the default scaling mode of future operations.
* It can be re-assigned to either LINEAR or NEAREST, depending upon suitability.
*
* @static
* @constant
* @type {object}
* @property {number} DEFAULT=LINEAR
* @property {number} LINEAR Smooth scaling
* @property {number} NEAREST Pixelating scaling
*/
SCALE_MODES: {
DEFAULT: 0,
LINEAR: 0,
NEAREST: 1
},
/**
* The wrap modes that are supported by pixi.
*
* The DEFAULT wrap mode affects the default wraping mode of future operations.
* It can be re-assigned to either CLAMP or REPEAT, depending upon suitability.
* If the texture is non power of two then clamp will be used regardless as webGL can only use REPEAT if the texture is po2.
* This property only affects WebGL.
*
* @static
* @constant
* @type {object}
* @property {number} DEFAULT=CLAMP
* @property {number} CLAMP - The textures uvs are clamped
* @property {number} REPEAT - The texture uvs tile and repeat
* @property {number} MIRRORED_REPEAT - The texture uvs tile and repeat with mirroring
*/
WRAP_MODES: {
DEFAULT: 0,
CLAMP: 0,
REPEAT: 1,
MIRRORED_REPEAT:2
},
/**
* The gc modes that are supported by pixi.
*
* The DEFAULT Garbage Collection mode for pixi textures is MANUAL
* If set to DEFAULT, the renderer will occasianally check textures usage. If they are not used for a specified period of time they will be removed from the GPU.
* They will of corse be uploaded again when they are required. This is a silent behind the scenes process that should ensure that the GPU does not get filled up.
* Handy for mobile devices!
* This property only affects WebGL.
*
* @static
* @constant
* @type {object}
* @property {number} DEFAULT=MANUAL
* @property {number} AUTO - Garbage collection will happen periodically automatically
* @property {number} MANUAL - Garbage collection will need to be called manually
*/
GC_MODES: {
DEFAULT: 0,
AUTO: 0,
MANUAL: 1,
},
/**
* If set to true WebGL will attempt make textures mimpaped by default.
* Mipmapping will only succeed if the base texture uploaded has power of two dimensions.
*
* @static
* @constant
* @type {boolean}
*/
MIPMAP_TEXTURES: true,
/**
* The prefix that denotes a URL is for a retina asset.
*
* @static
* @constant
* @type {RegExp|string}
* @example `@2x`
*/
RETINA_PREFIX: /@(.+)x/,
/**
* Default resolution / device pixel ratio of the renderer.
*
* @static
* @constant
* @type {number}
*/
RESOLUTION: 1,
/**
* Default filter resolution.
*
* @static
* @constant
* @type {number}
*/
FILTER_RESOLUTION:1,
/**
* The default render options if none are supplied to {@link PIXI.WebGLRenderer}
* or {@link PIXI.CanvasRenderer}.
*
* @static
* @constant
* @type {object}
* @property {HTMLCanvasElement} view=null
* @property {number} resolution=1
* @property {boolean} antialias=false
* @property {boolean} forceFXAA=false
* @property {boolean} autoResize=false
* @property {boolean} transparent=false
* @property {number} backgroundColor=0x000000
* @property {boolean} clearBeforeRender=true
* @property {boolean} preserveDrawingBuffer=false
* @property {boolean} roundPixels=false
*/
DEFAULT_RENDER_OPTIONS: {
view: null,
resolution: 1,
antialias: false,
forceFXAA: false,
autoResize: false,
transparent: false,
backgroundColor: 0x000000,
clearBeforeRender: true,
preserveDrawingBuffer: false,
roundPixels: false
},
/**
* Constants that identify shapes, mainly to prevent `instanceof` calls.
*
* @static
* @constant
* @type {object}
* @property {number} POLY
* @property {number} RECT
* @property {number} CIRC
* @property {number} ELIP
* @property {number} RREC
*/
SHAPES: {
POLY: 0,
RECT: 1,
CIRC: 2,
ELIP: 3,
RREC: 4
},
/**
* Constants that specify float precision in shaders.
*
* @static
* @constant
* @type {object}
* @property {number} DEFAULT='mediump'
* @property {number} LOW='lowp'
* @property {number} MEDIUM='mediump'
* @property {number} HIGH='highp'
*/
PRECISION: {
DEFAULT: 'mediump',
LOW: 'lowp',
MEDIUM: 'mediump',
HIGH: 'highp'
},
/**
* Constants that specify the transform type.
*
* @static
* @constant
* @type {object}
* @property {number} DEFAULT=STATIC
* @property {number} STATIC
* @property {number} DYNAMIC
*/
TRANSFORM_MODE:{
DEFAULT: 0,
STATIC: 0,
DYNAMIC: 1
},
/**
* Constants that define the type of gradient on text.
*
* @static
* @constant
* @type {object}
* @property {number} LINEAR_VERTICAL
* @property {number} LINEAR_HORIZONTAL
*/
TEXT_GRADIENT: {
LINEAR_VERTICAL: 0,
LINEAR_HORIZONTAL: 1
},
// TODO: maybe change to SPRITE.BATCH_SIZE: 2000
// TODO: maybe add PARTICLE.BATCH_SIZE: 15000
/**
* The default sprite batch size.
*
* The default aims to balance desktop and mobile devices.
*
* @static
* @constant
* @type {number}
* @default 4096
*/
SPRITE_BATCH_SIZE: 4096,
/**
* The maximum textures that this device supports.
*
* @static
* @constant
* @type {number}
*/
SPRITE_MAX_TEXTURES: require('./utils/maxRecommendedTextures')(32)
};
module.exports = CONST;
