nintaco.api

Interface ScanlineCycleListener

public interface ScanlineCycleListener

The listener interface for receiving scanline cycle events. The class that is interested in processing scanline cycle events implements this interface and the object created with that class is registered with API.addScanlineCycleListener().

Method Summary

Modifier and Type	Method and Description
void	cyclePerformed(int scanline, int scanlineCycle, int address, boolean rendering) Invoked during the scanline and cycle specified in API.addScanlineCycleListener().

Method Detail

cyclePerformed

void cyclePerformed(int scanline,
                    int scanlineCycle,
                    int address,
                    boolean rendering)

Invoked during the scanline and cycle specified in API.addScanlineCycleListener().

Parameters:

scanline - The scanline index. -1 indicates the pre-render scanline.

scanlineCycle - The scanline cycle index (the dot number), a value in the range [0, 340].

address - The PPU Memory address accessed during the scanline cycle.

rendering - true if and only if the scanline index is less-than 240 and either background or sprite rendering has been enabled by writing to the PPUMASK register ($2001).