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Tile+modifier combinations

In Prince of Persia, each tile is defined by a tile type (level.fg[...]) and a modifier byte (level.bg[...]).

SDLPoP supports the tile+modifier combinations listed below, in addition to what the original game supports.

(The headings show the value of the fg byte, the list items show the value of the bg byte.)

See also: https://www.princed.org/wiki/Legacy_combos
That page includes the combinations supported by the original game and also the native tiles added by SDLPoP and MININIM.

(TODO: Maybe document the original combinations in this file as well?)

Fake tiles

(See USE_FAKE_TILES in seg008.c.)

0x00: empty

  • 4 = 0x04: display a fake floor with modifier = 0
  • 5 = 0x05: display a fake wall with modifier = 0
  • 12 = 0x0C: display a fake floor with modifier = 1
  • 13 = 0x0D: display a fake wall with modifier = 1
  • 50 = 0x32: display a fake wall (pattern: no walls left or right)
  • 51 = 0x33: display a fake wall (pattern: wall only to the right)
  • 52 = 0x34: display a fake wall (pattern: wall only to the left)
  • 53 = 0x35: display a fake wall (pattern: wall on both sides)

0x01: floor

  • 5 = 0x05: display a fake wall with modifier = 0
  • 6 = 0x06: display nothing (invisible floor) with modifier = 0
  • 13 = 0x0D: display a fake wall with modifier = 1
  • 14 = 0x0E: display nothing (invisible floor) with modifier = 1
  • 50 = 0x32: display a fake wall (pattern: no walls left or right)
  • 51 = 0x33: display a fake wall (pattern: wall only to the right)
  • 52 = 0x34: display a fake wall (pattern: wall only to the left)
  • 53 = 0x35: display a fake wall (pattern: wall on both sides)

0x14: wall

  • 4 = 0x04: display a floor (invisible wall) with modifier = 0
  • 6 = 0x06: display empty tile (invisible wall) with modifier = 0
  • 12 = 0x0C: display a floor (invisible wall) with modifier = 1
  • 14 = 0x0E: display empty tile (invisible wall) with modifier = 1

Colored torches

(See USE_COLORED_TORCHES.)

0x13: torch and 0x1E: torch with debris

  • 0x00: Use the default colors.
  • 0x01-0x3F: Use a 6-bit RGB color for the flame.
    • bits 0-1: blue (0-3, respectively +0, +1, +2, +3)
    • bits 2-3: green (0-3, respectively +0, +4, +8, +12)
    • bits 4-5: red (0-3, respectively +0, +16, +32, +48)

Teleports

(See USE_TELEPORTS.)

0x17: balcony left

  • any non-zero modifier: teleport left half, takes to another balcony left with the same modifier.

0x18: balcony right

  • 1 = 0x01: teleport right half