processing-js/src/Helpers/PConstants.js

For the project website, visit http://processingjs.org

/**
 * Processing.js environment constants
 */
module.exports = {
    X: 0,
    Y: 1,
    Z: 2,

    R: 3,
    G: 4,
    B: 5,
    A: 6,

    U: 7,
    V: 8,

    NX: 9,
    NY: 10,
    NZ: 11,

    EDGE: 12,

    // Stroke
    SR: 13,
    SG: 14,
    SB: 15,
    SA: 16,

    SW: 17,

    // Transformations (2D and 3D)
    TX: 18,
    TY: 19,
    TZ: 20,

    VX: 21,
    VY: 22,
    VZ: 23,
    VW: 24,

    // Material properties
    AR: 25,
    AG: 26,
    AB: 27,

    DR: 3,
    DG: 4,
    DB: 5,
    DA: 6,

    SPR: 28,
    SPG: 29,
    SPB: 30,

    SHINE: 31,

    ER: 32,
    EG: 33,
    EB: 34,

    BEEN_LIT: 35,

    VERTEX_FIELD_COUNT: 36,

    // Renderers
    P2D:    1,
    JAVA2D: 1,
    WEBGL:  2,
    P3D:    2,
    OPENGL: 2,
    PDF:    0,
    DXF:    0,

    // Platform IDs
    OTHER:   0,
    WINDOWS: 1,
    MAXOSX:  2,
    LINUX:   3,

    EPSILON: 0.0001,

    MAX_FLOAT:  3.4028235e+38,
    MIN_FLOAT: -3.4028235e+38,
    MAX_INT:    2147483647,
    MIN_INT:   -2147483648,

    PI:         Math.PI,
    TWO_PI:     2 * Math.PI,
    TAU:        2 * Math.PI,
    HALF_PI:    Math.PI / 2,
    THIRD_PI:   Math.PI / 3,
    QUARTER_PI: Math.PI / 4,

    DEG_TO_RAD: Math.PI / 180,
    RAD_TO_DEG: 180 / Math.PI,

    WHITESPACE: " \t\n\r\f\u00A0",

    // Color modes
    RGB:   1,
    ARGB:  2,
    HSB:   3,
    ALPHA: 4,
    CMYK:  5,

    // Image file types
    TIFF:  0,
    TARGA: 1,
    JPEG:  2,
    GIF:   3,

    // Filter/convert types
    BLUR:      11,
    GRAY:      12,
    INVERT:    13,
    OPAQUE:    14,
    POSTERIZE: 15,
    THRESHOLD: 16,
    ERODE:     17,
    DILATE:    18,

    // Blend modes
    REPLACE:    0,
    BLEND:      1 << 0,
    ADD:        1 << 1,
    SUBTRACT:   1 << 2,
    LIGHTEST:   1 << 3,
    DARKEST:    1 << 4,
    DIFFERENCE: 1 << 5,
    EXCLUSION:  1 << 6,
    MULTIPLY:   1 << 7,
    SCREEN:     1 << 8,
    OVERLAY:    1 << 9,
    HARD_LIGHT: 1 << 10,
    SOFT_LIGHT: 1 << 11,
    DODGE:      1 << 12,
    BURN:       1 << 13,

    // Color component bit masks
    ALPHA_MASK: 0xff000000,
    RED_MASK:   0x00ff0000,
    GREEN_MASK: 0x0000ff00,
    BLUE_MASK:  0x000000ff,

    // Projection matrices
    CUSTOM:       0,
    ORTHOGRAPHIC: 2,
    PERSPECTIVE:  3,

    // Shapes
    POINT:          2,
    POINTS:         2,
    LINE:           4,
    LINES:          4,
    TRIANGLE:       8,
    TRIANGLES:      9,
    TRIANGLE_STRIP: 10,
    TRIANGLE_FAN:   11,
    QUAD:           16,
    QUADS:          16,
    QUAD_STRIP:     17,
    POLYGON:        20,
    PATH:           21,
    RECT:           30,
    ELLIPSE:        31,
    ARC:            32,
    SPHERE:         40,
    BOX:            41,

    // Arc drawing modes
    //OPEN:          1, // shared with Shape closing modes   
    CHORD:           2,
    PIE:             3, 


    GROUP:          0,
    PRIMITIVE:      1,
    //PATH:         21, // shared with Shape PATH
    GEOMETRY:       3,

    // Shape Vertex
    VERTEX:        0,
    BEZIER_VERTEX: 1,
    CURVE_VERTEX:  2,
    BREAK:         3,
    CLOSESHAPE:    4,

    // Shape closing modes
    OPEN:  1,
    CLOSE: 2,

    // Shape drawing modes
    CORNER:          0, // Draw mode convention to use (x, y) to (width, height)
    CORNERS:         1, // Draw mode convention to use (x1, y1) to (x2, y2) coordinates
    RADIUS:          2, // Draw mode from the center, and using the radius
    CENTER_RADIUS:   2, // Deprecated! Use RADIUS instead
    CENTER:          3, // Draw from the center, using second pair of values as the diameter
    DIAMETER:        3, // Synonym for the CENTER constant. Draw from the center
    CENTER_DIAMETER: 3, // Deprecated! Use DIAMETER instead

    // Text vertical alignment modes
    BASELINE: 0,   // Default vertical alignment for text placement
    TOP:      101, // Align text to the top
    BOTTOM:   102, // Align text from the bottom, using the baseline

    // UV Texture coordinate modes
    NORMAL:     1,
    NORMALIZED: 1,
    IMAGE:      2,

    // Text placement modes
    MODEL: 4,
    SHAPE: 5,

    // Stroke modes
    SQUARE:  'butt',
    ROUND:   'round',
    PROJECT: 'square',
    MITER:   'miter',
    BEVEL:   'bevel',

    // Lighting modes
    AMBIENT:     0,
    DIRECTIONAL: 1,
    //POINT:     2, Shared with Shape constant
    SPOT:        3,

    // Key constants

    // Both key and keyCode will be equal to these values
    BACKSPACE: 8,
    TAB:       9,
    ENTER:     10,
    RETURN:    13,
    ESC:       27,
    DELETE:    127,
    CODED:     0xffff,

    // p.key will be CODED and p.keyCode will be this value
    SHIFT:     16,
    CONTROL:   17,
    ALT:       18,
    CAPSLK:    20,
    PGUP:      33,
    PGDN:      34,
    END:       35,
    HOME:      36,
    LEFT:      37,
    UP:        38,
    RIGHT:     39,
    DOWN:      40,
    F1:        112,
    F2:        113,
    F3:        114,
    F4:        115,
    F5:        116,
    F6:        117,
    F7:        118,
    F8:        119,
    F9:        120,
    F10:       121,
    F11:       122,
    F12:       123,
    NUMLK:     144,
    META:      157,
    INSERT:    155,

    // Cursor types
    ARROW:    'default',
    CROSS:    'crosshair',
    HAND:     'pointer',
    MOVE:     'move',
    TEXT:     'text',
    WAIT:     'wait',
    NOCURSOR: "url('data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=='), auto",

    // Hints
    DISABLE_OPENGL_2X_SMOOTH:     1,
    ENABLE_OPENGL_2X_SMOOTH:     -1,
    ENABLE_OPENGL_4X_SMOOTH:      2,
    ENABLE_NATIVE_FONTS:          3,
    DISABLE_DEPTH_TEST:           4,
    ENABLE_DEPTH_TEST:           -4,
    ENABLE_DEPTH_SORT:            5,
    DISABLE_DEPTH_SORT:          -5,
    DISABLE_OPENGL_ERROR_REPORT:  6,
    ENABLE_OPENGL_ERROR_REPORT:  -6,
    ENABLE_ACCURATE_TEXTURES:     7,
    DISABLE_ACCURATE_TEXTURES:   -7,
    HINT_COUNT:                  10,

    // PJS defined constants
    SINCOS_LENGTH:      720,       // every half degree
    PRECISIONB:         15,        // fixed point precision is limited to 15 bits!!
    PRECISIONF:         1 << 15,
    PREC_MAXVAL:        (1 << 15) - 1,
    PREC_ALPHA_SHIFT:   24 - 15,
    PREC_RED_SHIFT:     16 - 15,
    NORMAL_MODE_AUTO:   0,
    NORMAL_MODE_SHAPE:  1,
    NORMAL_MODE_VERTEX: 2,
    MAX_LIGHTS:         8
};