RSDKv4 Functions

3D

Function	Description
Draw3DScene	Draws the active 3DScene data to the screen.
SetIdentityMatrix	Sets the matrix of matID to the identity state.
MatrixMultiply	Multiplies matrixA by matrixB.
MatrixTranslateXYZ	Translates matrix to translateX, translateY and translateZ.
MatrixScaleXYZ	Scales matrix to scaleX, scaleY and scaleZ.
MatrixRotate	Rotates matrix to angle on the specified axis.
MatrixRotateXYZ	Rotates matrix to angleX, angleY and angleZ.
MatrixInverse	Performs an inversion on matrix's values.
TransformVertices	Transform all vertices from startIndex to endIndex using matrix.

Audio

Function	Description
SetMusicTrack	Loads a music file in the given track slot with the given loop point.
PlayMusic	Plays the music currently loaded in the given track slot.
StopMusic	Stops playing the currently playing music track, if one is playing.
PauseMusic	Pauses the currently playing music track, if one is playing.
ResumeMusic	If a track has been paused with PauseMusic(), resumes playing the track.
SwapMusicTrack	Loads a music file in the given track slot with the given loop point, swapping the currently playing track if it's the one being overwritten.
PlaySfx	Plays the sound effect in the given slot in the GameConfig or StageConfig, looping it if set to do so.
StopSfx	Stops all instances of the given sound effect playing.
SetSfxAttributes	Sets the loop count and panning of the given sound effect to the given values.

Drawing

Function	Description
DrawTintRect	Draws a tinted rectangle to ixpos and iypos in screen-space.
LoadPalette	Loads a palette into palBank starting from startPalIndex, with an offset of startIndex and reading all colors through to endIndex.
RotatePalette	Rotates all colors in palBank from startIndex to endIndex, moving left or right depending on rotRight.
SetScreenFade	Adds a screen fade effect based on the r, g, b and alpha values.
SetActivePalette	Sets the active palette to palBank for all vertical screen lines from startLine to endLine.
SetPaletteFade	Blends palettes srcBankA and srcBankB, from indexes startIndex to endIndex, by blendAmount, and stores the new palette in dstBank.
GetPaletteEntry	Gets the palette entry in bank at index and stores it in store.
SetPaletteEntry	Sets the palette entry in bank at index to the value of color.
CopyPalette	Copies count colors from srcBank, starting from srcIndex, to destBank, starting at destIndex.
ClearScreen	Clears all pixels on screen with color clearIndex from the active palette.
DrawRect	Draws a rectangle to ixpos and iypos in screen-space, with a color based on the r, g, b, and alpha.
ClearDrawList	Removes all entries in drawList layer.
AddDrawListEntityRef	Adds objectPos to drawList layer.
GetDrawListEntityRef	Gets objectPos in drawList layer and stores it in store.
SetDrawListEntityRef	Sets objectPos in drawList layer to value.

Graphics

Function	Description
LoadSpriteSheet	Loads a spritesheet and assigns the ID to object.spritesheet.
RemoveSpriteSheet	Removes the given spritesheet from memory, if it is already loaded.
DrawSprite	Draws frame at the object's X and Y position.
DrawSpriteXY	Draws frame at a specified X and Y position.
DrawSpriteScreenXY	Draws frame at a specified X and Y position in screen-space.
SpriteFrame	Adds a SpriteFrame with the specified values.
EditFrame	Edits the pivots, width, height, and sheet coordinates of frame.
DrawSpriteFX	Draws frame at a specified X and Y position with visual effects.
DrawSpriteScreenFX	Draws frame at a specified X and Y position in screen-space with visual effects.
LoadAnimation	Loads an animation file for the current object type.
ProcessAnimation	Processes the current object's animation, based on the animation file loaded prior via LoadAnimation().
DrawObjectAnimation	Draws an object's sprites from the animation file loaded prior via LoadAnimation().

Math

Function	Description
Rand	Gets a random value from 0 to max (not inclusive) and stores it in store.
Sin	Gets the value from the sin512 lookup table based on angle and sets it in store.
Cos	Gets the value from the cos512 lookup table based on angle and sets it in store.
Sin256	Gets the value from the sin256 lookup table based on angle and sets it in store.
Cos256	Gets the value from the cos256 lookup table based on angle and sets it in store.
ATan2	Performs an arctan operation using x and y, storing the result in store.
Interpolate	Linearly interpolates x and y by percent and stores the result in store.
InterpolateXY	Linearly interpolates two points at once and stores the result in storeX and storeY respectively.
Not	Performs a NOT operation on value.
GetBit	Gets the binary bit at index bitPos from value and stores it in store.
SetBit	Sets index bitPos of value to bit and updates value accordingly.
GetTableValue	Gets the value at index from table and stores it in store.
SetTableValue	Sets the value at index from table to value.
Abs	Gets the absolute number of value.

Object

Function	Description
ResetObjectEntity	Resets an object in position slot with the type, propertyValue, xpos, and ypos specified.
BoxCollisionTest	Checks for collision of an object with another, using the hitbox values passed.
CreateTempObject	Creates a temporary object specified by type, propertyValue, xpos and ypos near the end of the object list.
ProcessObjectMovement	Handles tile collision of an object/player.
ProcessObjectControl	Handles object input variables.
ObjectTileCollision	Tries to collide with the foreground layer based on the position of object.ixpos + xOffset, object.iypos + yOffset.
ObjectTileGrip	Tries to collide with the foreground layer based on the position of object.ixpos + xOffset, object.iypos + yOffset.
SetObjectRange	Changes internal bounds, affecting all objects.
GetObjectValue	Gets object.valueXX of the object in slot corresponding to valueID and stores it in store.
SetObjectValue	Sets object.valueXX of the object in slot corresponding to valueID to value.
CopyObject	Copies count objects starting from srcSlot and pastes them to the object slots starting from destSlot.

Stages

Function	Description
LoadStage	Loads a stage based on stage.activeList and stage.listPos.
SetLayerDeformation	Sets the deformation data array of deformID, based on deformA and deformB.
GetTileLayerEntry	Gets the ID of the chunk at chunkX, chunkY on tile layer layer and stores it in store.
SetTileLayerEntry	Sets the chunk at chunkX, chunkY in tile layer layer to the index of value.
Get16x16TileInfo	Gets the value for infoType from the tile at tileX, tileY and stores it in store.
Set16x16TileInfo	Sets the value for infoType from the tile at tileX, tileY to value.
Copy16x16Tile	Copies the tileset image data of srcTile to dstTile.
CheckCurrentStageFolder	Reads the name of the current stage's folder.

Miscellaneous

Function	Description
CallNativeFunction	Sends a callback to the engine to run a native function.
CheckTouchRect	Checks if there's a touch input between the given coordinates.
SetupMenu	Sets up menu with rowCount rows, selectionCount active selections and aligning set to alignment.
AddMenuEntry	Adds an entry to menu with the contents of text.
EditMenuEntry	Edits an entry of menu with the contents of text in rowID.
DrawMenu	Draws menu at xpos and ypos relative to the screen.
GetTextInfo	Gets the data of type from menu using index and stores it in store.
GetVersionNumber	Adds a text entry to menu with the engine's version as the text.
LoadTextFile	Loads menu based on the text file loaded from filePath.
Print	Prints a message or integer to the console.
ReadSaveRAM	Reads the contents of the save file on disk into SaveRAM.
WriteSaveRAM	Writes the contents of SaveRAM to the save file on disk.

Deprecated

Function	Description
LoadTextFont	Loads a bitmap font from filePath for use with text menus.
DrawText	Draws the contents of menu.