Special Feature Special features of Snake Tail Hack

This sample was created in order to meet the following requests. Please play with it and re-create it.

I want to display 2D images as well.

A 2D image was displayed in the center of the stage as a texture.

Since the original size of the texture is 64dots X 64dots, it is not possible to map it to one surface as it is. In reality, it is mapped after data is divided into 32dots X 32dots.

Reference: DrawMovie() of map.c

	:
	:
	/* 64dots X 64dots texture is divided into 4 and read.    */
	/* In other words, 4 32dots X 32dots-textures are read.  */
	/* Read texture data (upper left portion�j */
	gDPLoadTextureTile(glistp++,
			bmp,
			G_IM_FMT_RGBA,
			G_IM_SIZ_16b,
			64, 64,
			0, 0, 31, 31,
			0,
			G_TX_WRAP | G_TX_NOMIRROR, G_TX_WRAP | G_TX_NOMIRROR,
			0, 0,
			G_TX_NOLOD, G_TX_NOLOD);
			gSP2Triangles(glistp++,0,1,2,0,0,2,3,0);
	:
	:

I want to try 3D display.

The stage map is polygon-displayed.

By moving the C button of the Controller up and down, the position of image point can be changed.

Reference: DrawMapObj() of map.c 

	Model data that was output by a modeling tool using gSPDisplayList() is actually output.  
	:
	the portion of gSPDisplayList(glistp++,kabe_mdl_model0);
	:

I want to display a screen with sound.

It can be done rather easily as NuSystem is used. Sequece and sound effect are emitted with screen display.

Reference:mainproc() of gamemain.c

	sequence
	:
	nuAuSeqPlayerSetNo(0,0);
	nuAuSeqPlayerPlay(0);
	:

Reference:updateGame() of gamemain.c

	sound effect
	:
	nuAuSndPlayerPlay(EFF_PAUSE);
	nuAuSndPlayerSetPitch(44100.0/32000);
	:

I want to use 4 Controllers and 4 Controller Paks.

Created a game which uses 4 Controllers. Also, it uses 4 Controller Paks. It should be a reference as an error process sample, too.

Reference:updateGame() of gamemain.c

	:
	:
	/* Updating process for each pad  */
	the portion of for(padnum = 0; padnum < NU_CONT_MAXCONTROLLERS; padnum++){
	:
	:

I want to proceed with a program while bringing a program or data from the ROM area.

Reading to a fixed area as an example of not only the data that is read first, but also the data which I brought from the ROM later. Image data in the center of the screen is read one by one.

Reference:ReadMovie() of gamemain.c

	:
	/* Actually copy data from ROM to RDRAM.   */
	the portion of nuPiReadRom( (u32)(_moviedataSegmentRomStart + onecutlen * MovieNum),
			(void *)&MovieBuf[0],
			onecutlen
			);
	:
	: