TileImage

A TileImage is a rectangular set of tiles which can be drawn to the screen. The tile values, foreground and background colours can be set. If one of the colours is set to -1, it will behave the same way as drawing a tile after setting the foreground or background colour to -1, that is, it will use the most recently used colour on that tile on the screen. If the tile value is set to -1, no tile will be drawn at that position. This allows for a primitive sort of transparency.

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Attributes:

final int imageWidth

• The width of the TileImage.

final int imageHeight

• The height of the TileImage.

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Constructors:

TileImage(int width, int height)

• Takes an image width and height (in number of tiles).

TileImage(int width, int height, int[] vals, int[][] cols)

• Takes an image width and height (in number of tiles), an array of tile values, and an array of colours in the form of {background, foreground}.

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Methods:

void setTile(int x, int y, int val, int background, int foreground)

• Sets the value and colours of a tile at a given position.

void setTileValue(int x, int y, int val)

• Sets the value of a tile at a given position.

void setTileColour(int x, int y, int background, int foreground)

• Sets the colours of a tile at a given position.

int getTileValue(int x, int y, int val)

• Returns the tile value at a specified position.

int[] getTileColours(int x, int y, int val)

• Returns the colours of a tile at a specified position in the form of {background, foreground}.