All Functions and Procedures

Make sure that the URI is absolute (always has a protocol).

Convert between lowercase activity name and TUserActivity type.

Add an exe file extension, searching for an existing file starting with ExePath.

Add all strings from string array to TStrings instance.

Linear interpolation between 2 angle values, in radians.

Angle between two vectors, in radians.

Add Suffix to the filename, right before extension.

URL where we should read and write configuration files.

Save / restore OpenGL pixel store for unpacking / packing given TCastleImage.

Largest power of 2 still <= Value.

Smallest possible box enclosing a sphere with Center, Radius.

Calculate bounding box of a set of 3D points.

Calculate bounding box of a set of indexed 3D points.

Calculate suitable camera to see everything using an orthographic projection.

Our version of CoTan, to workaround http://www.freepascal.org/mantis/view.php?id=9944.

Just like standard GetTickCount64 function, but works on all platforms supported by CGE.

Just like standard Randomize function, but works on all platforms supported by CGE.

Just like standard Today function, but works on all platforms supported by CGE.

Use this instead of FPC TranslateResourceStrings.

Catmull-Rom spline low-level function.

Returns FileName with directory (path) part replaced with given NewPath.

Change extension of the URL.

Check condition.

Call SysUtils.DeleteFile and check result.

Check are any OpenGL errors recorded (in glGetError).

Call RemoveDir and check result.

Convert color to grayscale.

Place color intensity (calculated like for grayscale) into the given color component.

Change color into a hexadecimal notation of it (like in HTML).

Convert LCL color values to our colors (vectors).

Combines BasePath with RelPath into complete path.

Compare two methods.

Save / load TComponent (or any descendant) to a .castle-component, .castle-user-interface or .castle-transform file.

Return S[StartPosition..EndPosition].

Create Component instance, if it's Nil.

Returns TCastleStringList with tokens extracted from S.

Cubic (4 control points) Bezier curve (with all weights equal) in 1D.

Cubic (4 control points) Bezier curve (with all weights equal) in 3D.

Convert DateTime to string in the form "date at time".

Decode color from integer value, following VRML/X3D SFImage specification.

Remove from the FileName the last extension (including the dot).

Delete extension of the URL.

Convert digit (like number 0) to character (like '0').

Retrieves from Element attribute Value and returns True, or (if there is no such attribute) returns False and does not modify Value.

Like DOMGetAttribute, but reads Cardinal value.

Like DOMGetAttribute, but reads Float value.

Returns the one and only child element of this Element.

Gets a child of Element named ChildName, and gets text data within this child.

Draw a simple 2D primitive with a given color.

Draw a rectangle filled with a color.

Draw a rectangle frame.

Check if the two RGB colors are equal, ignoring small differences.

Write using a dialog box or console.

Expand tilde (˜) in path, just like shell.

Extracts from FileName the name of file, without directory, without last extension and without any Windows drive letter.

Extract path (everything before last part), including final slash, from URL.

Fallback (do not change this, ever) theme.

Returns full path to ffmpeg-compatible executable.

Does given MIME type looks like a video file extension that can be handled (encoded or decoded) by ffmpeg.

Deprecated names, use the identifiers without "Open" in new code.

Substitute %d in given URL (UrlPattern) with successive numbers, until the resulting URL (which can be just a filename) doesn't exist.

mcDefault mcNone mcForceNone mcStandard mcWait mcText mcHand mcResizeVertical mcResizeHorizontal mcResizeTopLeft mcResizeTop mcResizeTopRight mcResizeLeft mcResizeRight mcResizeBottomLeft mcResizeBottom mcResizeBottomRight

Read file or URL contents to a string.

Find first file matching given Mask inside Path.

Find first occurrence of character in Delimiters.

Calculate Float modulo of division on two Float arguments.

Various compatibility functions (on Single)

Like standard FloatToStr, but always uses dot (.) as a decimal separator for the floating point numbers, regardless of the user's locale settings.

Like standard Format, but always uses dot (.) as a decimal separator for the floating point numbers, regardless of the user's locale settings.

Replace sequences @counter(<padding>) in the NamePattern with Index.

If needed, free result of TDOMElement.ChildNodes.

Safer version of FreeMem, checks is parameter Nil, and sets it to Nil afterwards.

Generate GetText PO file contents that can be used as a basis for translators to localize this component.

Search in FileFilter for the bar character "|", and return everything after it.

Get temporary FileName, suitable for ApplicationName, checking that it doesn't exist.

Generate text to insert to POT (PO template) to allow translating given text.

Call glColor, taking Opacity as separate Single argument.

Draw arrow shape.

Enable exactly one (or none, for Target=etNone) OpenGL texture target for fixed-function pipeline.

If List <> 0 then it does glDeleteList on List and sets List to 0.

Call glGenLists(range) and checks the result.

Comfortable wrappers for OpenGL glGet* that return a single value.

Draw horizontal line using OpenGL.

Multiline string describing attributes of current OpenGL(ES) library.

Enable or disable given OpenGL flag.

Comfortably load all six cube map texture images.

Concatenate the string list with a given Delimiter.

Draw vertical line using OpenGL.

Calculate color intensity, for converting color to grayscale.

Does this NamePattern contain @counter in a format understood by FormatNameCounter.

Hermite spline with tangents zero (it will be horizontal at control points).

Convert hexadecimal color notation (like in HTML) into an RGB color.

Converting between RGB and HSV.

Check if both arrays contain exactly the same classes in the same order.

Return appropriate OpenGL format and type constants for given TCastleImage descendant.

Calculate normal vector of possibly concave polygon.

Index (0, 1 or 2) of maximum / minimum of 3 numbers.

Output messages, using console or dialog box.

Check is Image class one of the items in the ImageClasses array, or a descendant of one of them.

Initialize logging.

Construct TInputMotion.

Floor from Sqrt(Value).

Convert integer to hexadecimal (base-16 numeric system).

Convert integer to string, inserting additional Separator to visually delimit thousands, milions etc.

Convert integer to string, padding string with zeros if needed.

Tests for collision between box3d centered around (0, 0, 0) and a plane.

Check is memory filled with the given character.

Check is memory filled with the Word (2 byte sequence).

Just like IsPathAbsolute, but on Windows accepts also paths that specify full directory tree without drive letter.

Check is Value an exact power of 2.

Does image have proper size for 2D OpenGL texture.

Check triangle with line segment collision.

Test collision between triangle and sphere in 2D.

Global joystick manager object.

Convert TKey and/or character code into Lazarus key code (VK_xxx) and shift state.

Find a range within "key" field corresponding to given Fraction.

Like CharToNiceStr, but accepts UTF-8 characters expressed as String.

Describe given key.

Linear interpolation between two values.

Given two colors in RGB, interpolate them in HSV space.

Coefficients of the 2D line equation (Ax + By + C = 0), given 2 different points lying on the line.

List available image file formats.

File filters for files loaded by Load3DSequence, suitable for TFileFilterList.AddFiltersFromString and TCastleWindow.FileDialog.

Load image to TEncodedImage format.

Load OpenGL texture into already reserved texture number.

Load new texture to OpenGL.

The ultimate procedure to load an image from a file or URL.

Load a scene as X3D node.

Load VRML/X3D file in classic encoding, return it's root node.

Check the existence of OpenGL EXT_framebuffer_blit extension.

Where is the log output going.

Construct TX3DNode defining camera with given properties.

Adjust and return the V1 vector to force V1 and V2 to be orthogonal, but keep the 3D plane determined by V1 and V2 unchanged.

Adjust the V1 vector to force V1 and V2 to be orthogonal, but keep the 3D plane determined by V1 and V2 unchanged.

Linearly map value from a one range to another.

Material and texture properties, see TMaterialProperties.

Convert between Double-precision and Single-precision matrix.

Decompose a matrix that is composition of 3D translation, rotation and scale.

Which coordinate (0, 1, 2, and eventually 3 for 4D versions) is the largest.

Search for menu item with given SmallId.

Ask user to input a floating-point number.

Ask user to press any key, return this key as Keys.TKey.

Ask user to press anything (key or mouse button or mouse wheel), and return it.

Simply add and subtract two TMilisecTime values.

Determine pressed modifier keys (ctrl, shift and so on).

Determine simple mouse wheel direction from a Scroll and Vertical parameters received from TCastleWindow.OnMouseWheel.

Multiply matrix M by translation matrix.

Find next part in the string S separated by delimiters TokenDelims.

Return point on NURBS curve.

Return point on NURBS surface.

Simple on-screen notification using Android "toast" call.

Open a local file or directory.

Return a multiline command-line option help, containing the option name and description, nicely indented and broken into multiple lines.

Make sure the Smaller value is <= than the Larger value, by eventually swapping them.

Convert camera direction and up vectors into a rotation (X3D "orientation" vector).

Convert camera direction and up vectors into a "rotation quaternion".

Convert rotation (X3D orientation) to an up vector, reversing the OrientationFromDirectionUp.

If not TrueValue then RaiseLastOSError.

PAnsiCharOrNil simply returns a Pointer(S), you can think of it as a NO-OP.

Parse a CastleScript expression that should be calculated to a boolean value.

Parse constant Int64 expression.

Parse a CastleScript expression that should be calculated to a float value.

Parse a CastleScript expression that should be calculated to a string value.

PCharOrNil simply returns a Pointer(S), you can think of it as a NO-OP.

Calculate projection matrix, and set RenderContext.ProjectionMatrix to given value.

Vector orthogonal to plane and pointing in the given direction.

Current platform of the compiled application.

Pointer arithmetic.

Given two 3D lines (both given as an some point + direction in 3D), calculate closest point on 1st line to the 2nd line.

Distance between points projected on the 2D plane.

Distance from a point to a plane.

Convert TUserActivities to a String, using Delimiter to separate items.

Process URL through events registered by AddLoadImageListener.

Simple measure of process CPU time.

Single instance of TCastleProfiler that you can use for all profiling.

Path to access installed data files.

Initialize rotation quaternion from a 3x3 matrix that contains only rotation.

Random Float value in the given range, result is between RangeBegin and RangeEnd.

Random integer value in the given range, result is always >= RangeBegin and < RangeEnd.

Random int value in the given range, result is always >= RangeBegin and <= RangeEnd.

Read a growing stream, and append it to another destination stream.

Read-only list of currently registered (using RegisterSerializableComponent) components.

Register how we can load and/or save the URLs with given protocol.

If this URL indicates something inside the CGE data directory ( https://castle-engine.io/manual_data_directory.php ), then return URL relative to this data directory.

Remove the directory DirName, recursively, unconditionally, with all the files and subdirectories inside.

A simple TCastleWindow.OnResize callback implementation, that sets 2D projection.

Remaining 3D coordinates (0, 1 or 2) except the given coordinate, in the ascending order.

Rotate point in 2D, in a counter-clockwise fashion.

Rotate Point around the Axis by 90 degrees.

Rotate Point around the Axis by -90 degrees.

Check if strings are equal, taking into account current locale.

If S = '' then returns NextPart, else returns S + PartSeparator + NextPart.

Which VRML/X3D version should be used to save this 3D model.

Recommended path where to put screenshots on the current platform.

Save the current color buffer contents to image.

Check that all characters are within a given set.

Replace any number of consecutive whitespace (including newlines) with a single whitespace.

Standard GLSL vertex shader for screen effect.

Search for a file, ignoring the case.

Set current texture minification and magnification filter.

Share a text/link through user-choosen application.

Interpolate between two rotations, along the shortest path on the unit sphere, with constant speed.

Smallest power of 2 that is >= Value.

Hermite interpolation between two values.

Pad (fill from the left with character C) string S, until length of resulting string is at least Len.

Describe current platform, OS, CPU.

Make each '&' inside string '&&', this way the string will not contain special '&x' sequences when used as a TMenuItem.Caption and such.

Returns S with each '__' replaced with single '_', any other '_' removed.

Replace all strings in Patterns with corresponding strings in Values.

Convert string representing binary number to an integer.

Read one character from stream.

Read stream, until you find some character in EndingChars, or end of stream.

Read stream, until you find some character in EndingChars.

Save the contents of given Stream to an URL.

Encode / decode a string in a binary stream.

Replace all occurrences of FromPattern string to ToPattern string, within another string S.

Splits S by Splitter, and adds each splitted part to Strings.

Make sure we don't have more than MaxCount strings on a list.

Implementation of MurMur2 hash algorithm to make a cryptographic-unsafe but highly uniform 32bit hash from a given string very quickly.

Convert String to UTF-16 (UnicodeString).

Convert between lowercase activity confidence name and TUserActivityConfidence type.

Like standard StrToFloatDef, but always uses dot (.) as a decimal separator for the floating point numbers, regardless of the user's locale settings.

Convert string value back to a key name, reversing KeyToStr.

Convert string to a platform name.

Like PrefixRemove, but checks for and removes Suffix.

Utility functions to control the endianess of Single and Double values; no support for Extended though as such values have yet to be encountered when read from a file

Endianess swapping for vectors.

Replace contents of 2 variables.

Returns the locale code of the system locale.

Call glTexParameterf to set GL_TEXTURE_MAX_ANISOTROPY_EXT on given texture target.

Convert TTextureCompression enum to string.

OpenGL texture memory profiler, to detect which textures use up the GPU texture memory.

Intersection of three 3D planes, results in a single 3D point.

Timer to measure (real) time passed during some operations.

Difference in times between SecondTime and FirstTime.

Calculate matrix to convert to given coordinate system (like TransformToCoordsMatrix) and it's inverse (like TransformFromCoordsMatrix).

Save / load TCastleTransform (or descendant) to a .castle-transform file.

Translate all possible properties in the given component hierarchy with given translation file.

Extract translation from matrix.

Functions to create common 4x4 matrices used in 3D graphics.

Remove one newline from the end of the string, if any.

Plane and line intersection.

Plane and line segment intersection.

Calculate triangle with line segment collision.

function UTF8CharacterToUnicode(const S: string): TUnicodeChar;

Unregister protocol, reverting the RegisterUrlProtocol.

Current working directory of the application, expressed as URL, including always final slash at the end.

Remove the protocol part from URI.

Ensure URL does not end with slash.

Extracts #anchor from URI.

Like URIExtractAnchor, but URI remains unchanged.

Ensure URL ends with slash.

Get protocol from given URI.

Convert URI (or filename) to a filename.

Is the S a valid protocol scheme.

Replacements for standard ReadXMLFile and WriteXMLFile that operate on URLs.

Use this to set sound engine backend to FMOD.

User preferences.

Path to store user configuration files.

Save / load TCastleUserInterface (or descendant) to a .castle-user-interface file.

Convert string to vector.

Construct an initialized TVector3 value.

Construct an initialized TVector4 value.