AbortGame

AbortGame(string message, ...)

Aborts the game and returns to the operating system.

The standard AGS error dialog is displayed, with the script line numbers and call stack, along with message (which can include %d and %s Display-style tokens).

You can use this function rather than QuitGame if you are writing some debugging checks into your script, to make sure that the user calls your functions in the correct way.

This command should ideally never be called in the final release of a game.

Example:

function MakeWider(int newWidth) {
    if (newWidth < 10)
        AbortGame("newWidth expects a width of at least 10!");
}

will abort the game if MakeWider is called with a parameter less than 10.

SeeAlso: QuitGame

CallRoomScript

CallRoomScript (int value)

Calls the on_call function in the current room script. This is useful for things like the text parser, where you want to check for general game sentences, and then ask the current room if the sentence was relevant to it.

The on_call function will be called in the current room script, with its value parameter having the value you pass here. This allows it to distinguish between different tasks. If you need to pass more values, or values of different types, you may have to resort to Global variables.

If the current room has no on_call function, nothing will happen. No error will occur.

You write the on_call function into the room script ("Edit script" button on Room Settings pane), similar to the way you do dialog_request in the global script:

function on_call (int value) {
    if (value == 1) {
        // Check text input
        if (Parser.Said("get apple"))
            Display("No, leave the tree alone.");
    }
}

The function doesn't get called immediately; instead, the engine will run it in due course, probably during the next game loop, so you can't use any values set by it immediately.

Once the on_call function has executed (or not if there isn't one), the game.roomscript_finished variable will be set to 1, so you can check for that in your repeatedly_execute script if you need to do something afterwards.

SeeAlso: The text parser documentation, on_call

ClaimEvent

ClaimEvent()

This command is used in a room script or script module's on_key_press or on_mouse_click function, and it tells AGS not to run the global script afterwards.

For example, if your room script responds to the player pressing the space bar, and you don't want the global script's on_key_press to handle it as well, then use this command.

This is useful if you have for example a mini-game in the room, and you want to use some keys for a different purpose to what they normally do.

The normal order in which scripts are called for on_key_press and on_mouse_click is as follows:

• room script
• script modules, in order
• global script

If any of these scripts calls ClaimEvent, then the chain is aborted at that point.

Example:

if (keycode == ' ') {
    Display("You pressed space in this room!");
    ClaimEvent();
}

prevents the global script on_key_press from running if the player pressed the space bar.

SeeAlso: Script events

Debug

Debug (int command, int data)

This function provides all the debug services in the system. It performs various different tasks, depending on the value of the COMMAND parameter. If debug mode is off, then this function does nothing. This allows you to leave your script unaltered when you distribute your game, so you just have to turn off debug mode in the AGS Editor.

The DATA parameter depends on the command - pass 0 if it is not used. All the valid values for the COMMAND parameter are listed below along with what they do:

0   All inventory - gives the current player character one of every
    inventory item. This is useful for testing so that you don't have to
    go and pick up items every time you test part of the game where they
    are required.
1   Display interpreter version - the engine will display its version
    number and build date.
2   The viewport fills with the visible room mask, where DATA allows you 
    to select which mask: 
    0 - none, 1 - hotspots, 2 - walkbehinds, 3 - walkable areas, 4 - regions. 
    This command also works as a toggle switch, calling it with the same mask 
    index will turn it off.
    For the walkable areas, they are drawn with blocking areas at characters 
    feet removed. This is useful if you think the path-finder is not working 
    properly.
3   Teleport - displays a dialog box asking for what room you want to go
    to, and then calls ChangeRoom to teleport you there. Useful for skipping
    parts of the game or going to a specific point to test something.
4   Show FPS - toggles whether the current frames per second is displayed
    on the screen. Pass DATA as 1 to turn this on, 0 to turn it off.
5   Character Walk Path - shows walking path for the character.
    Pass DATA matching desired Character ID. 
    Call Debug(5,n) again to toggle it off.

Compatibility: Using Debug(2,n) for different masks and Debug(5,n) as toggle is only supported by AGS 3.6.0 and later versions.

See also: Debugging features, System.RuntimeInfo

DeleteSaveSlot

DeleteSaveSlot (int slot)

Deletes the save game in save slot number SLOT. If there were no save then nothing happens.

IMPORTANT: for historical reasons, when deleting slots in the range of 1 to 50, this function also moves highest slot found in that range to fill the freed slot. For example, if there were slots 1, 2, 3, 4, 5 and DeleteSaveSlot removes slot 3, then save in slot 5 will be renamed to become slot 3.

Example 1:

DeleteSaveSlot (130);

deletes save game slot 130 (which we should have saved earlier).

Example 2:

for (int i = 999; i >= 0; i--)
{
    DeleteSaveSlot(i);
}

deletes all the saves. This deletes in an opposite order to counter the problem with slots in the range 1-50 mentioned above.

See also: RestoreGameSlot, SaveGameSlot

DisableInterface

DisableInterface ()

Disables the player interface. This has two main effects:

• all GUI (both parent and controls) will be disabled and not react on mouse events.
• mouse clicks will not be sent through to the "on_mouse_click" function.

While disabled, GUIs may change their looks depending on the setting "When player interface is disabled, GUI should".

NOTE: AGS keeps a count of the number of times DisableInterface is called. Every call to DisableInterface must be matched by a later call to EnableInterface, otherwise the interface will get permanently disabled.

Example:

DisableInterface();

will disable the user's interface.

See also: EnableInterface, IsInterfaceEnabled

EnableInterface

EnableInterface ()

Re-enables the player interface, which was previously disabled with the DisableInterface function. Everything which was disabled is returned to normal.

Example:

EnableInterface();

will enable the user's interface.

See also: DisableInterface, IsInterfaceEnabled

EndCutscene

EndCutscene()

Marks the end of a cutscene. If the player skips the cutscene, the game will fast-forward to this point. This function returns 0 if the player watched the cutscene, or 1 if they skipped it.

See also: SkipCutscene, StartCutscene, Game.InSkippableCutscene, Game.SkippingCutscene

GetGameOption

GetGameOption (option)

Gets the current setting of one of the game options, originally set in the AGS Editor Game Settings pane.

OPTION specifies which option to get, and its current value is returned.

The valid values for settable OPTIONs are listed in SetGameOption.

Following is the list of READ-ONLY options:

Example:

if (GetGameOption(OPT_PIXELPERFECT) == 1) {
    Display("pixel-perfect click detection is on!");
}

See also: SetGameOption

GetGameParameter

The GetGameParameter function is now obsolete.

It has been replaced with the following functions and properties:

Game.SpriteWidth (was gp_spritewidth)
Game.SpriteHeight (was gp_spriteheight)
Game.GetLoopCountForView (was GP_NUMLOOPS)
Game.GetFrameCountForLoop (was GP_NUMFRAMES)
Game.GetRunNextSettingForLoop (was GP_ISRUNNEXTLOOP)
Game.GetViewFrame (was GP_FRAMExxx, GP_ISFRAMEFLIPPED)
Game.GUICount (was gp_numguis)
Room.ObjectCount (was gp_numobjects)
Game.CharacterCount (was GP_NUMCHARACTERS)
Game.InventoryItemCount(was GP_NUMINVITEMS)

GetGameSpeed

GetGameSpeed ()

Returns the current game speed (number of cycles per second).

Example:

if (GetGameSpeed() > 40) {
    SetGameSpeed(40);
}

will always keep the game speed at 40 cycles per second (in case the user has raised it )

See also: SetGameSpeed

GetGlobalInt

GetGlobalInt (int index)

Returns the value of global int INDEX.

NOTE: GlobalInts are now considered obsolete. Consider using global variables instead, which allow you to name the variables.

Example:

if (GetGlobalInt(20) == 1) {
    // code here
}

will execute the code only if Global Integer 20 is 1.

See also: Global variables, SetGlobalInt, Game.GlobalStrings

GetGraphicalVariable

GetGraphicalVariable (string variable_name);

Returns the value of the interaction editor VARIABLE_NAME variable. This allows your script to access the values of variables set in the interaction editor.

NOTE: This command is obsolete, and is only provided for backwards compatibility with AGS 2.x. When writing new code, use global variables instead.

Example:

if (GetGraphicalVariable("climbed rock")==1)
{
    // Code here.
}

will execute the code only if interaction variable "climbed rock" is 1.

See also: Global variables, GetGlobalInt, SetGraphicalVariable

GetLocationType

LocationType GetLocationType(int x, int y)

Returns what type of room thing is seen under the given screen coordinates (x, y): whether it is a character, object, hotspot or nothing at all. This may be useful, for example, if you want to process a mouse click differently depending on what the player clicks on.

It's important to know that this will work only if there's a room viewport found on screen at that point, otherwise this function will fail and return "nothing".

Also, this function is "blocked" by any interactable non-room object, such as GUI, and will return "nothing" as well if one is found under these screen coordinates.

The value returned is one of the following:

eLocationNothing    nothing, GUI or inventory
eLocationHotspot    a hotspot
eLocationCharacter  a character
eLocationObject     an object

NOTE: The co-ordinates are SCREEN co-ordinates, NOT ROOM co-ordinates. This means that this function is suitable for use with the mouse cursor position variables.

NOTE: When looking up for an object under coordinates, GetLocationType is affected by the game setting "Pixel-perfect click detection". It's possible to change this behavior in script by changing OPT_PIXELPERFECT option (see SetGameOption).

Example:

if (GetLocationType(mouse.x,mouse.y) == eLocationCharacter)
    mouse.Mode = eModeTalk;

will set the cursor mode to talk if the cursor is over a character.

See also: Hotspot.GetAtScreenXY, Game.GetLocationName, Object.GetAtScreenXY

GetPlayerCharacter

GetPlayerCharacter ()

THIS COMMAND IS NOW OBSOLETE.
The recommended replacement is to use the player character's ID property, as follows:

Example:

Display("The player character number is %d", player.ID);

See also: Character.ID

GetTextHeight

GetTextHeight(string text, FontType font, int width)

Calculates the height on the screen that drawing TEXT in FONT within an area of WIDTH would take up.

This allows you to work out how tall a message displayed with a command like DrawMessageWrapped will be. WIDTH is the width of the area in which the text will be displayed.

The height is returned in screen pixels, so it can be used with the screen display commands.

NOTE: There's a historical mistake in this function, which was kept for backwards compatibility until today. When GetTextHeight calculates line wrapping within a given width, it reduces "width" parameter by 1. For a correct result, pass "width + 1" instead (where "width" is the value that you like to have).

Example:

int height = GetTextHeight("The message on the GUI!", Game.NormalFont, 100);
gBottomLine.SetPosition(0, 200 - height);

will move the BOTTOMLINE GUI so that it can display the text within the screen.

See also: GetTextWidth, DrawingSurface.DrawString

GetTextWidth

GetTextWidth(string text, FontType font)

Returns the width on the screen that drawing TEXT in FONT on one line would take up.

This could be useful if you manually need to center or right-align some text, for example with the raw drawing routines.

The width is returned in screen pixels, so it can be used with the screen display commands.

Example:

DrawingSurface *surface = Room.GetDrawingSurfaceForBackground();
surface.DrawingColor = 14;
int width = GetTextWidth("Hello!", Game.NormalFont);
surface.DrawString(160 - (width / 2), 100, Game.NormalFont, "Hello!");
surface.Release();

will print "Hello!" onto the middle of the background scene.

See also: GetTextHeight, DrawingSurface.DrawString

GetTranslation

const string GetTranslation(string original)

Gets the translated equivalent of the supplied string. You do not normally need to use this since the game translates most things for you. However, if you have used an InputBox or other form of user input, and want to compare the user's input to a particular string, it cannot be translated automatically. So, you can do this instead.

Example:

String buffer = Game.InputBox("Enter the password:");
if (buffer.CompareTo(GetTranslation("secret")) == 0) {
    // it matched the current translation of "secret"
}

If there is no translation for the supplied string, it will be returned unchanged, so it is always safe to use this function.

See also: Game.ChangeTranslation, Game.TranslationFilename, IsTranslationAvailable, Translation Manual

GiveScore

GiveScore (int score)

Adds SCORE to the player's score. This is preferable to directly modifying the variable since it will play the score sound, update any status lines and call the GOT_SCORE on_event function.

Note that SCORE can be negative, in which case the score sound is NOT played.

Example:

GiveScore(5);

will give 5 points to the player.

See also: Game.DoOnceOnly

GetFontHeight

int GetFontHeight (int font)

Returns the given font's height, in pixels. This value may be used, for example, to calculate arrangement of text and GUI elements on screen.

Example:

int h = GetFontHeight(eFontSpeech);

will store the speech font's height in the variable.

Compatibility: Supported by AGS 3.4.1 and later versions.

See also: GetFontLineSpacing

GetFontLineSpacing

int GetFontLineSpacing (int font)

Returns the step between two lines of text for the specified font. If this value equals font's height, then each next line is rendered right after previous one with no space in between. If the line spacing is lower than font's height, then the lines of text are partially overlapping.

NOTE: this is the distance between the top of the first line and the top of the next line, and not distance between bottom of first line and top of next one. If you need to calculate the gap between the lines, then subtract font's height from the line spacing value.

Example:

int h = GetFontHeight(eFontSpeech);
int spacing = GetFontLineSpacing(eFontSpeech);
int gap = spacing - h;

will calculate the gap between two lines of text, that are drawn using speech font.

Compatibility: Supported by AGS 3.4.1 and later versions.

See also: GetFontHeight

InventoryScreen

InventoryScreen ()

This command is obsolete.

This command was used for displaying a default inventory window in previous versions of AGS, but is no longer supported.

Instead of using this command, you should create your own Inventory GUI.

IsGamePaused

IsGamePaused ()

Returns true if the game is currently paused, or false otherwise. The game is paused when either the icon bar interface has been popped up, or a "script-only" interface has been displayed with GUI.Visible=true. While the game is paused, no animations or other updates take place.

Example:

if (IsGamePaused()) UnPauseGame();

will unpause the game if it's paused.

See also: PauseGame, UnPauseGame, GUI.Visible

IsInterfaceEnabled

IsInterfaceEnabled()

Returns 1 if the player interface is currently enabled, 0 if it is disabled. There are following reasons why it may be disabled:

• DisableInterface function was called in script;
• the game is currently running any blocking action (such as Display, Say or Walk);
• the game is in a certain state, such as displaying dialog options.

Example:

if (IsInterfaceEnabled())
    DisableInterface();

will disable the user interface if it's enabled.

See also: DisableInterface, EnableInterface

IsInteractionAvailable

int IsInteractionAvailable(int x, int y, int mode)

Checks whether there is an interaction defined inside a room for clicking on the screen at (X, Y) in cursor mode MODE. Please note that x and y are screen coordinates, not room coordinates.

This function is very similar to Room.ProcessClick, except that rather than carry out any interactions it encounters, it simply returns 1 if something would have happened, or 0 if unhandled_event would have been run.

Function will fail and return 0 if there's no room viewport on screen at the given coordinates. On the other hand it ignores any non-room objects such as GUI, and "clicks through" any GUI that covers room at this location.

This function is useful for enabling options on a verb-coin style GUI, for example.

NOTE: When looking up for an object under coordinates, IsInteractionAvailable is affected by the game setting "Pixel-perfect click detection". It's possible to change this behavior in script by changing OPT_PIXELPERFECT option (see SetGameOption).

Example:

if (IsInteractionAvailable(mouse.x, mouse.y, eModeLookat) == 0)
    Display("looking here would not do anything.");

See also: InventoryItem.IsInteractionAvailable, Hotspot.IsInteractionAvailable, Object.IsInteractionAvailable, Character.IsInteractionAvailable, Room.ProcessClick

IsKeyPressed

IsKeyPressed(eKeyCode)

Tests whether the supplied key on the keyboard is currently pressed down or not. You could use this to move an object while the player holds an arrow key down, for instance.

KEYCODE is one of the Key codes, with some limitations: since it tests the raw state of the key, you CANNOT pass the Ctrl+(A-Z) or Alt+(A-Z) codes (since they are key combinations). You can, however, use some extra codes which are listed at the bottom of the section.

Returns 1 if the key is currently pressed, 0 if not.

NOTE: The numeric keypad can have inconsistent keycodes between IsKeyPressed and on_key_press. With IsKeyPressed, the numeric keypad always uses keycodes in the 370-381 range. on_key_press, however, passes different values if Num Lock is on since the key presses are interpreted as the number key rather than the arrow key.

Example:

if (IsKeyPressed(eKeyUpArrow))
    cEgo.Walk(cEgo.x, cEgo.y+3);

will move the character EGO upwards 3 pixels when the up arrow is pressed.

See also: Mouse.IsButtonDown

IsTimerExpired

bool IsTimerExpired(int timer_id)

Checks whether the timer TIMER_ID has expired. If the timeout set with SetTimer has elapsed, returns true. Otherwise, returns false.

Note that this function will only return true once - after that, the timer is placed into an OFF state where it will always return false until restarted.

Example:

if (IsTimerExpired(1)) {
    Display("Timer 1 expired");
}

will display a message when timer 1 expires.

See also: SetTimer

IsTranslationAvailable

IsTranslationAvailable ()

Finds out whether the player is using a game translation or not.

Returns 1 if a translation is in use, 0 if not.

See also: Game.ChangeTranslation, Game.TranslationFilename, GetTranslation, Translation Manual

MoveCharacterToHotspot

This function is now obsolete. Use Character.Walk instead

MoveCharacterToHotspot (CHARID, int hotspot)

Moves the character CHARID from its current location to the walk-to point for the specified hotspot. If the hotspot has no walk-to point, nothing happens.

This is a blocking call - control is not returned to the script until the character has reached its destination.

Example:

MoveCharacterToHotspot(EGO,6);

will move the character EGO to the hotspot's 6 "walk to point".

See also: Hotspot.WalkToX, Hotspot.WalkToY, Character.Walk, MoveCharacterToObject

MoveCharacterToObject

This function is now obsolete. Use Character.Walk instead

MoveCharacterToObject (CHARID, int object)

Moves the character CHARID from its current location to a position just below the object OBJECT. This is useful for example, if you want the man to pick up an object. This is a blocking call - control is not returned to the script until the character has reached its destination.

Example:

MoveCharacterToObject (EGO, 0);
object[0].Visible = false;

Will move the character EGO below object number 0, then turn off object 0.

See also: Character.Walk, MoveCharacterToHotspot

PauseGame

PauseGame ()

Stops AGS processing movement and animations. This has the same effect on the game as happens when a modal GUI is popped up.

When the game is paused, game cycles will continue to run but no animations or movement will be performed, and timers will not count down. Apart from that, your scripts will continue to run as normal.

To be precise, following is paused by this function:

• Timers (ones set by SetTimer),
• Character walking and animating, idle view timing,
• Object moving and animating,
• Overlay timing (for auto removal),
• Speech timing and animation.

As you may notice, GUI and Audio are not paused at all. PauseGame was historically purposed to pause the Room, while having some kind of the GUI menus and background music running. If you want to also suspend (and later unsuspend) these, you would have to script that yourself.

NOTE: PauseGame() works as a counter, so if you call it twice, you will need to call UnPauseGame() game twice too to resume game. To avoid this behavior make sure to only pause once:

if (!IsGamePaused()) PauseGame();

Game processing will not resume until you call the UnPauseGame function as needed.

Example:

if (IsKeyPressed(32)) PauseGame();

will pause the game if the player presses the space bar

See also: UnPauseGame, IsGamePaused

QuitGame

QuitGame(int ask_first)

Exits the game and returns to the operating system.

If ASK_FIRST is zero, it will exit immediately. If ASK_FIRST is not zero, it will first display a message box asking the user if they are sure they want to quit.

Example:

QuitGame(0);

will quit the game without asking the player to confirm.

See also: AbortGame

Random

Random (int max)

Returns a random number between 0 and MAX. This could be useful to do various effects in your game. MAX must be a positive value in range 0-32767.

NOTE: Because of the way Random is implemented in AGS, the return value will never be higher than 32767.

NOTE: The range returned is inclusive - i.e. if you do Random(3); then it can return 0, 1, 2 or 3.

Example:

int ran=Random(2);
if (ran==0) cEgo.ChangeRoom(1);
else if (ran==1) cEgo.ChangeRoom(2);
else cEgo.ChangeRoom(3);

will change the current room to room 1,2 or 3 depending on a random result.

RestartGame

RestartGame ()

Restarts the game from the beginning.

Example:

if (IsKeyPressed(365)) RestartGame();

will restart the game if the player presses the F7 key.

SeeAlso: SetRestartPoint

RestoreGameDialog

RestoreGameDialog ()

Displays the restore game dialog, where the player can select a previously saved game position to restore.

The dialog is not displayed immediately; instead, it will be displayed when the script function finishes executing.

Example:

if (IsKeyPressed(363)) RestoreGameDialog();

will bring up the restore game dialog if the player presses the F5 key.

See also: RestoreGameSlot, SaveGameDialog

RestoreGameSlot

RestoreGameSlot (int slot)

Restores the game position saved into slot number SLOT. If this slot number does not exist, an error message is displayed to the player but the game continues. To avoid the error, use the GetSaveSlotDescription function to see if the position exists before restoring it.

NOTE: The game will not be restored immediately; instead, it will be restored when the script function finishes executing.

Example:

RestoreGameSlot(30);

will restore game slot 30 if this slot number exists.

See also: Game.GetSaveSlotDescription, RestoreGameDialog, SaveGameSlot

RunAGSGame

RunAGSGame (string filename, int mode, int data)

Quits the current game, and loads up FILENAME instead. FILENAME must be an AGS game EXE or AC2GAME.AGS file, and it must be in the current directory.

MODE specifies various options about how you want to run the game. Currently the supported values are:

0   Current game is completely exited, new game runs as if it had been launched separately
1   GlobalInt values are preserved and are not set to 0 for the new game.

DATA allows you to pass an integer through to the next game. The value you pass here will be accessible to the loaded game by it reading the game.previous_game_data variable.

The save game slots are shared between the two games, and if you load a save slot that was saved in the other game, it will automatically be loaded.

Bear in mind that because the games must be in the same folder, they will also share the audio.vox, speech.vox and so forth. This is a limitation of this command.

NOTE: The game you run will be loaded at the same resolution and color depth as the current game; if you mismatch color depths some nasty results will occur.

NOTE: The game you want to launch must have been created with the same point-version of AGS as the one you are launching it from. (version 2.xy - the X must be the same version between the two games).

Example:

RunAGSGame ("MyGame.exe", 0, 51);

will run the MyGame game, passing it the value 51.

SaveGameDialog

SaveGameDialog ()

Displays the save game dialog, where the player can save their current game position. If they select to save, then the game position will be saved.

NOTE: The dialog will not be displayed immediately; instead, it will be shown when the script function finishes executing.

Example:

if (keycode == 361) SaveGameDialog();

will bring up the save game dialog if the player presses the F3 key.

See also: RestoreGameDialog, SaveGameSlot

SaveGameSlot

SaveGameSlot (int slot, string description)

Saves the current game position to the save game number specified by SLOT, using DESCRIPTION as the textual description of the save position. Be careful using this function, because you could overwrite one of the player's save slots if you aren't careful.

NOTE: The game will not be saved immediately; instead, it will be saved when the script function finishes executing.

Example:

SaveGameSlot(30, "save game");

will save the current game position to slot 30 with the description "Save game".

See also: DeleteSaveSlot, RestoreGameSlot, SaveGameDialog

SaveScreenShot

SaveScreenShot (string filename)

Takes a screen capture and saves it to disk. The FILENAME must end in either ".BMP" or ".PCX", as those are the types of files which can be saved. Returns 1 if the shot was successfully saved, or 0 if an invalid file extension was provided.

NOTE: The screenshot will be saved to the Saved Games folder.

NOTE: This command can be slow when using the Direct3D graphics driver.

Example:

String input = Game.InputBox("Type the filename:");
input = input.Append(".pcx");
SaveScreenShot(input);

will prompt the player for a filename and then save the screenshot with the filename the player typed.

See also: DynamicSprite.SaveToFile

SetAmbientLightLevel

void SetAmbientLightLevel(int light_level);

Sets an ambient light level that affects all objects and characters in the room that have their UseRoomAreaLighting property set to true.

The light level is from -100 to 100, where 0 means that no adjustment will be applied to sprites.

In 8-bit games you cannot use positive light level for brightening effect, but you may still use negative values to produce darkening effect.

To turn light level off, call this command again but pass the light_level as 0.

NOTE: This function overrides any specific region light levels or tints on the screen, but does NOT override individual character and object light levels.

NOTE: Setting an ambient light level will disable ambient RGB tint, if there one was previously set.

Example:

SetAmbientLightLevel(50);

will apply light level 50 to every character and object on screen (which do not have individual light levels).

Compatibility: Supported by AGS 3.4.0 and later versions.

See also: SetAmbientTint, Character.SetLightLevel, Object.SetLightLevel, Region.LightLevel

SetAmbientTint

SetAmbientTint(int red, int green, int blue, int saturation, int luminance)

Tints all objects and characters on the screen that have their UseRoomAreaLighting property set to true to (RED, GREEN, BLUE) with SATURATION percent saturation.

This allows you to apply a global tint to everything on the screen. The RED, GREEN and BLUE parameters are from 0-255, and specify the color of the tint.

The SATURATION parameter defines how much the tint is applied, and is from 0-100. A saturation of 100 will completely re-colorize the sprites to the supplied color, and a saturation of 1 will give them a very minor tint towards the specified color.

The LUMINANCE parameter allows you to adjust the brightness of the sprites at the same time. It ranges from 0-100. Passing 100 will draw the sprites at normal brightness. Lower numbers will darken the images accordingly, right down to 0 which will draw everything black.

The tint applied by this function is global. To turn it off, call this command again but pass the saturation as 0.

NOTE: This function only works in hi-color games and with hi-color sprites.

NOTE: This function overrides any specific region light levels or tints on the screen.

Example:

SetAmbientTint(0, 0, 250, 30, 100);

will tint everything on the screen with a hint of blue.

See also: SetAmbientLightLevel, Character.Tint, Object.Tint, Region.Tint

SetGameOption

SetGameOption (option, int value)

Changes one of the game options, originally set in the AGS Editor Game Settings pane.

OPTION specifies which option to change, and VALUE is its new value.

Valid modifiable OPTIONs are listed below:

The game settings which are not listed here either are read-only, deprecated and have a separate command to change them (such as Speech.Style), or unusable in the contemporary engine.

For the list of read-only options see GetGameOption.

This command returns the old value of the setting.

Example:

SetGameOption (OPT_PIXELPERFECT, 0);

will disable pixel-perfect click detection.

See also: GetGameOption, Speech.Style, SetTextWindowGUI

SetGameSpeed

SetGameSpeed (int new_speed)

Sets the maximum game frame rate to NEW_SPEED frames per second, or as near as possible to that speed. The default frame rate is 40 fps, but you can speed up or slow down the game by using this function. Note that this speed is also the rate at which the Repeatedly_Execute functions are triggered.

The NEW_SPEED must lie between 10 and 1000. If it does not, it will be rounded to 10 or 1000. Note that if you set a speed which the player's computer cannot handle (for example, a 486 will not be able to manage 80 fps), then it will go as fast as possible.

NOTE: Because the mouse cursor is repainted at the game frame rate, at very low speeds, like 10 to 20 fps, the mouse will appear to be jumpy and not very responsive.

NOTE: If you set the System.VSync property to true, the game speed will be capped at the screen's refresh rate, so you will be unable to set it higher than 60-85 (depending on the player's screen refresh).

Example:

SetGameSpeed(80);

will set the game speed to 80.

See also: GetGameSpeed

SetGlobalInt

SetGlobalInt (int index, int value)

Sets the global int INDEX to VALUE. You can then retrieve this value from any other script using GetGlobalInt.

There are 500 available global variables, from index 0 to 499.

NOTE: GlobalInts are now considered obsolete. Consider using global variables instead, which allow you to name the variables.

Example:

SetGlobalInt(10,1);

will set the Global Integer 10 to 1.

See also: Global variables, GetGlobalInt

SetGraphicalVariable

SetGraphicalVariable(string variable_name, int value);

Sets the interaction editor VARIABLE_NAME variable to VALUE. This allows your script to change the values of variables set in the interaction editor.

NOTE: This command is obsolete, and is only provided for backwards compatibility with AGS 2.x. When writing new code, use global variables instead.

Example:

SetGraphicalVariable("climbed rock", 1);

will set the interaction editor "climbed rock" variable to 1.

See also: Global variables, GetGraphicalVariable

SetMultitaskingMode

SetMultitaskingMode (int mode)

Allows you to set what happens when the user switches away from your game.

If MODE is 0 (the default), then if the user Alt+Tabs out of your game, or clicks on another window, the game will pause and not continue until they switch back into the game.

If MODE is 1, then the game will continue to run in the background if the user switches away (useful if, for example, you are just making some sort of jukebox music player with AGS).

Note that mode 1 does not work with some graphics cards in full-screen mode, so you should only rely on it working when your game is run in windowed mode.

Cross-Platform Support

Windows: Yes
Linux: Yes
MacOS: Yes

Example:

SetMultitaskingMode (1);

will mean that the game continues to run in the background.

SetRestartPoint

SetRestartPoint ()

Changes the game restart point to the current position. This means that from now on, if the player chooses the Restart Game option, it will return here.

This function is useful if the default restart point doesn't work properly in your game - just use this function to move it.

NOTE: The restart point cannot be set while a script is running -- therefore, when you call this it will actually set the restart point at the next game loop where there is not a blocking script running in the background.

SeeAlso: RestartGame

SetTextWindowGUI

SetTextWindowGUI (int gui)

Changes the GUI used for text windows to the specified GUI. This overrides the "text windows use GUI" setting in the editor.

You can pass -1 as the GUI number to go back to using the default white text box.

Example:

SetTextWindowGUI (4);

will change Textwindow GUI 4 to be used for displaying text windows in future.

SetTimer

SetTimer (int timer_id, int timeout)

Starts timer TIMER_ID ticking - it will tick once every game loop (normally 40 times per second), until TIMEOUT loops, after which it will stop. You can check whether the timer has finished by calling the IsTimerExpired function.

Pass TIMEOUT as 0 to disable a currently running timer.

There are 20 available timers, with TIMER_IDs from 1 to 20.

NOTE: the timer will not tick while the game is paused.

Example:

SetTimer(1,1000);

will set the timer 1 to expire after 1000 game cycles.

Example 2:

When you have a hard time keeping track of the timers only by number you can use Macros to replace the descriptive name with the time number everywhere the descriptive name is use. To better keep track of these macros you could put them on top of the global script.

#define Delay_CustomAnimation 1

SetTimer(Delay_CustomAnimation, 2000);

this "names" timer 1 and sets it to expire after 2000 game cycles

See also: IsTimerExpired

SkipCutscene

SkipCutscene()

Explicitly commences skipping current cutscene. If game is not in a cutscene sequence or cutscene is already being skipped this function will do nothing.

SkipCutscene will work regardless of the StartCutscene parameters, but is most useful when you do not want to rely on built-in skipping controls and are coding your own. In the latter case make sure to start cutscene in eSkipScriptOnly mode to prevent any standard input interference.

Example:

if (Game.InSkippableCutscene && IsKeyPressed(eKeySpace)) {
    SkipCutscene();
}

will check if game is inside a cutscene, and if player has pressed a space bar then commands to skip it.

Compatibility: Supported by AGS 3.5.0 and later versions.

See also: EndCutscene, SkipUntilCharacterStops, StartCutscene, Game.InSkippableCutscene, Game.SkippingCutscene

SkipUntilCharacterStops

SkipUntilCharacterStops(CHARID)

Skips through the game until the specified character stops walking, a blocking script runs, or a message box is displayed.

The purpose of this command is to mimic the functionality in games such as The Longest Journey, where the player can press ESC to instantly get the character to its destination. It serves as a handy feature to allow you to give the player character a relatively slow walking speed, without annoying the player by making them wait ages just to get from A to B.

If the specified character is not moving when this function is called, nothing happens.

Example: (in on_key_press)

if (keycode == eKeyEscape) SkipUntilCharacterStops(EGO);

This means that if the player presses ESC, the game will skip ahead until EGO finishes moving, or is interrupted by a Display command or a blocking cutscene.

See also: StartCutscene

StartCutscene

StartCutscene(CutsceneSkipType)

Marks the start of a cutscene. Once your script passes this point, the player can choose to skip a portion by pressing a key or the mouse button. This is useful for things like introduction sequences, where you want the player to be able to skip over an intro that they've seen before.

The CutsceneSkipType determines how they can skip the cutscene:

eSkipESCOnly
  by pressing ESC only
eSkipAnyKey
  by pressing any key
eSkipMouseClick
  by clicking a mouse button
eSkipAnyKeyOrMouseClick
  by pressing any key or clicking a mouse button
eSkipESCOrRightButton
  by pressing ESC or clicking the right mouse button
eSkipScriptOnly
  only by calling SkipCutscene script function

NOTE: eSkipScriptOnly may be useful if you are coding your own cutscene skipping method in script and would like to disable built-in ones.

You need to mark the end of the cutscene with the EndCutscene command.

Be very careful with where you place the corresponding EndCutscene command. The script must pass through EndCutscene in its normal run in order for the skipping to work - otherwise, when the player presses ESC the game could appear to hang.

Compatibility: eSkipScriptOnly cutscene mode is supported by AGS 3.5.0 and later versions.

See also: EndCutscene, SkipCutscene, SkipUntilCharacterStops, Game.InSkippableCutscene, Game.SkippingCutscene

UpdateInventory

UpdateInventory ()

Updates the on-screen inventory display. If you add or remove inventory items manually (i.e. by using the InventoryQuantity array rather than the AddInventory/LoseInventory functions), the display may not get updated. In this case call this function after making your changes, to update what is displayed to the player.

Note that using this function will reset the order that items are displayed in the inventory window to the same order they were created in the editor.

See also: Character.AddInventory, Character.LoseInventory, Character.InventoryQuantity

UnPauseGame

UnPauseGame ()

Resumes the game.

Example:

if (IsGamePaused() == 1)
    UnPauseGame();

will unpause the game if it is paused.

NOTE: Because PauseGame works as a counter, if you called it more than once, this won't work. To ignore this behavior, unpause as much as needed with the below snippet.

while (IsGamePaused()) UnPauseGame();

See also: PauseGame, IsGamePaused