private IEnumerable <Sprite> Brick10Coins(int x, int y)
{
x -= 4;
y -= 8;
var tile = new ChrTile(0x2C, 2, LayerPriority.Priority3, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
tile.TileIndex = 0x2E;
x += 8;
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
}
private IEnumerable <Sprite> FlagPole(int x, int y)
{
y = 0x30;
x += 8;
var index = 4 - (((AnimationFrame + (x >> 1)) / 12 % 3) << 1);
var tile = new ChrTile(0x120 + index, 5, LayerPriority.Priority2, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
x += 0x60;
y += 0x40;
index = ((AnimationFrame + (x >> 1)) >> 2) & 6;
tile = new ChrTile(0x104 + index, 5, LayerPriority.Priority0, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
}
private IEnumerable <Sprite> BeanStalk(int x, int y)
{
var tile = new ChrTile(0x12C, 5, LayerPriority.Priority3, 0);
for (y -= 0x10; y > 0x10; y -= 0x10)
{
tile.TileIndex = 0x12C;
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
}
tile = new ChrTile(0x12A, 5, LayerPriority.Priority3, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex += 0x0F;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y + 8, tile));
}
private IEnumerable <Sprite> Goomba(int x, int y)
{
y++;
var tile = new ChrTile(0xC6, 1, LayerPriority.Priority2, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
y += 8;
if (((AnimationFrame + (x >> 1)) & 8) >> 3 == 0)
{
tile.TileIndex++;
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
}
else
{
tile.TileIndex += 2;
tile.XFlipped = true;
yield return(new Sprite(x, y, tile));
tile.TileIndex--;
yield return(new Sprite(x + 8, y, tile));
}
}
private IEnumerable <Sprite> BalanceRopeLift(int x, int y)
{
var tile = new ChrTile(0x87, 6, LayerPriority.Priority2, 0);
x -= 4;
y -= 0x10;
for (var i = 0; i <= 0x30; i += 8)
{
yield return(new Sprite(x + i, y, tile));
}
}
private IEnumerable <Sprite> ShortLiftUp(int x, int y)
{
var tile = new ChrTile(0x87, 6, LayerPriority.Priority2, 0);
y -= ((AnimationFrame << 6) / 75) + (x >> 4);
y &= 0xFF;
x += 8;
for (var i = 0; i <= 0x18; i += 8)
{
yield return(new Sprite(x + i, y, tile));
}
}
private IEnumerable <Sprite> Mushroom(int x, int y, int palette)
{
var tile = new ChrTile(0xE9, palette, LayerPriority.Priority2, 0);
yield return(new Sprite(x, y - 8, tile));
tile.TileIndex++;
yield return(new Sprite(x + 8, y - 8, tile));
tile.TileIndex = 0x78;
yield return(new Sprite(x, y, tile, TileProperties.Transparent));
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile, TileProperties.Transparent));
}
private IEnumerable <Sprite> BuzzyBeetle(int x, int y)
{
y += 2;
var index = (((AnimationFrame + (x << 1)) & 8) >> 1);
var tile = new ChrTile(0xAA + index, 5, LayerPriority.Priority2, TileFlip.Horizontal);
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
y += 8;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y, tile));
}
private IEnumerable <Sprite> SpringBoard(int x, int y)
{
var tile = new ChrTile(0xF2, 6, LayerPriority.Priority2, 0);
yield return(new Sprite(x, y, tile));
tile.TileFlip = TileFlip.Horizontal;
yield return(new Sprite(x + 8, y, tile));
tile.TileFlip = TileFlip.Veritcal;
yield return(new Sprite(x, y + 0x10, tile));
tile.TileFlip = TileFlip.Both;
yield return(new Sprite(x + 8, y + 0x10, tile));
tile.TileIndex++;
tile.TileFlip = 0;
yield return(new Sprite(x, y + 8, tile));
tile.TileFlip = TileFlip.Horizontal;
yield return(new Sprite(x + 8, y + 8, tile));
}
private IEnumerable <Sprite> FireBarCounterClockwise(int x, int y)
{
var tile = new ChrTile(
0xBE + ((AnimationFrame & 4) >> 2),
4,
LayerPriority.Priority2,
(TileFlip)((AnimationFrame & 0x0C) >> 2));
x += 4;
y -= 12;
var rate = 0x70;
var angle = -((((AnimationFrame & ~3) >> 1) + (x >> 1)) % rate) * 2 * PI / rate;
for (var i = 0; i < 6; i++)
{
yield return(new Sprite(
x + (int)(8 * i * Cos(angle)),
y + (int)(8 * i * Sin(angle)),
tile));
}
}
private IEnumerable <Sprite> KoopaTroopa(int x, int y, int palette)
{
var index = (((AnimationFrame + (x >> 1)) & 8) >> 3) * 5;
y -= 7;
var tile = new ChrTile(0xA0 + index, palette, LayerPriority.Priority2, TileFlip.Horizontal);
yield return(new Sprite(x, y, tile));
y += 8;
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y, tile));
y += 8;
tile.TileIndex++;
yield return(new Sprite(x + 8, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y, tile));
}
private IEnumerable <Sprite> PiranhaPlant(int x, int y)
{
if (RomData.AreaNumber == 0x25)
{
//yield break;
}
var index = ((AnimationFrame + (x >> 1)) & 0x10) == 0 ? 0xE5 : 0xEC;
x += 8;
y -= PirhanaPlantOffset(AnimationFrame - (x >> 2));
var tile = new ChrTile(index, 5, 0, 0);
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y + 8, tile));
tile.TileIndex--;
tile.TileFlip = TileFlip.Horizontal;
x += 8;
yield return(new Sprite(x, y, tile));
tile.TileIndex++;
yield return(new Sprite(x, y + 8, tile));
y += 0x10;
tile.TileIndex = 0xEB;
tile.PaletteIndex = 2;
yield return(new Sprite(x, y, tile));
tile.TileFlip = 0;
yield return(new Sprite(x - 8, y, tile));
}
