R7ASetup.txt

//-----------------Sonic CD R7 A Setup Script-----------------//
//--------Scripted by Christian Whitehead 'The Taxman'--------//
//-------Unpacked By Rubberduckycooly's Script Unpacker-------//

// Aliases
#alias Object.Value0	:	Object.PaletteTimer
#alias Object.Value1	:	Object.ActivePalette
#alias Object.Value2	:	Object.FlamesTimer

// Collision Modes
#alias 0	:	CMODE_FLOOR

// Priority
#alias 1	:	PRIORITY_ACTIVE

// Tile Info
#alias 0	:	TILEINFO_INDEX
#alias 8	:	TILEINFO_ANGLEB


// Function declarations
#function R7Setup_GetLoopTileInfo


function R7Setup_GetLoopTileInfo
	// Gets info from out of bounds chunks, located past the signpost

	// Precondition:
	//   - TempValue0 is the chunk ID of the chunk currentbly being checked against

	TempValue3 = Player.XPos
	TempValue3 >>= 16
	TempValue3 &= 255
	TempValue3 += 0x3100

	TempValue0 -= 16
	TempValue0 >>= 2
	TempValue0 <<= 8
	TempValue4 = Player.YPos
	TempValue4 >>= 16
	TempValue4 &= 255
	TempValue4 += TempValue0

	Get16x16TileInfo(TempValue0, TempValue3, TempValue4, TILEINFO_INDEX)
end function


sub ObjectMain

	// Palette cycling
	// Despite banks 0-5 being set up earler, only banks 0-1 are used here
	Object.PaletteTimer++
	if Object.PaletteTimer == 5
		Object.PaletteTimer = 0
		Object.ActivePalette++
		Object.ActivePalette &= 1
		SetActivePalette(Object.ActivePalette, 0, 240)
	end if

	if Object.FlamesTimer > 0
		Object.FlamesTimer--
	end if

end sub


sub ObjectPlayerInteraction

	// "Layers" are managed here
	// (In reality, chunks are swapped on-the-fly in order to make it appear as if the player's moving behind/in front of them)

	// Get the position of the chunk the player's currently in
	TempValue1 = Player.XPos
	TempValue1 >>= 23
	TempValue2 = Player.YPos
	TempValue2 >>= 23

	// And find what chunk ID it corresponds to
	GetTileLayerEntry(TempValue0, 0, TempValue1, TempValue2)

	// If applicable, jump to the loop chunk set it corresponds to
	switch TempValue0
	case 16
	case 17
	case 18
	case 19
		// Loop chunks, open from left side
		CallFunction(R7Setup_GetLoopTileInfo)
		if Player.CollisionMode == CMODE_FLOOR
			if TempValue0 == 1001
				TempValue1 &= 1022
				TempValue2 &= 1022
				SetTileLayerEntry(20, 0, TempValue1, TempValue2)
				TempValue1++
				SetTileLayerEntry(21, 0, TempValue1, TempValue2)
				TempValue1--
				TempValue2++
				SetTileLayerEntry(22, 0, TempValue1, TempValue2)
				TempValue1++
				SetTileLayerEntry(23, 0, TempValue1, TempValue2)
			end if
		else
			if Player.Speed > 0
				if TempValue0 == 1003
					TempValue1 &= 1022
					TempValue2 &= 1022
					SetTileLayerEntry(20, 0, TempValue1, TempValue2)
					TempValue1++
					SetTileLayerEntry(21, 0, TempValue1, TempValue2)
					TempValue1--
					TempValue2++
					SetTileLayerEntry(22, 0, TempValue1, TempValue2)
					TempValue1++
					SetTileLayerEntry(23, 0, TempValue1, TempValue2)
				end if
			end if
		end if
		break

	case 20
	case 21
	case 22
	case 23
		// Loop chunks, open from right side
		CallFunction(R7Setup_GetLoopTileInfo)
		if Player.CollisionMode == CMODE_FLOOR
			if TempValue0 == 1000
				TempValue1 &= 1022
				TempValue2 &= 1022
				SetTileLayerEntry(16, 0, TempValue1, TempValue2)
				TempValue1++
				SetTileLayerEntry(17, 0, TempValue1, TempValue2)
				TempValue1--
				TempValue2++
				SetTileLayerEntry(18, 0, TempValue1, TempValue2)
				TempValue1++
				SetTileLayerEntry(19, 0, TempValue1, TempValue2)
			end if
		else
			if Player.Speed < 0
				if TempValue0 == 1002
					TempValue1 &= 1022
					TempValue2 &= 1022
					SetTileLayerEntry(16, 0, TempValue1, TempValue2)
					TempValue1++
					SetTileLayerEntry(17, 0, TempValue1, TempValue2)
					TempValue1--
					TempValue2++
					SetTileLayerEntry(18, 0, TempValue1, TempValue2)
					TempValue1++
					SetTileLayerEntry(19, 0, TempValue1, TempValue2)
				end if
			end if
		end if
		break

	case 24
	case 25
	case 26
	case 27
		// Wavy chunks, open from left side
		CallFunction(R7Setup_GetLoopTileInfo)
		if TempValue0 == 1001
			TempValue1 &= 1022
			TempValue2 &= 1022
			SetTileLayerEntry(28, 0, TempValue1, TempValue2)
			TempValue1++
			SetTileLayerEntry(29, 0, TempValue1, TempValue2)
			TempValue1--
			TempValue2++
			SetTileLayerEntry(30, 0, TempValue1, TempValue2)
			TempValue1++
			SetTileLayerEntry(31, 0, TempValue1, TempValue2)
		end if
		break

	case 28
	case 29
	case 30
	case 31
		// Wavy chunks, open from right side
		CallFunction(R7Setup_GetLoopTileInfo)
		if TempValue0 == 1000
			TempValue1 &= 1022
			TempValue2 &= 1022
			SetTileLayerEntry(24, 0, TempValue1, TempValue2)
			TempValue1++
			SetTileLayerEntry(25, 0, TempValue1, TempValue2)
			TempValue1--
			TempValue2++
			SetTileLayerEntry(26, 0, TempValue1, TempValue2)
			TempValue1++
			SetTileLayerEntry(27, 0, TempValue1, TempValue2)
		end if
		break

	end switch

	if Object.FlamesTimer == 0

		// Get the absolute version of the Player's speed
		TempValue0 = Player.Speed
		if TempValue0 < 0
			FlipSign(TempValue0)
		end if

		// Is the player going at a speed above 10 pixels?
		if TempValue0 > 0xA0000
			TempValue3 = Player.XPos
			TempValue3 >>= 16

			TempValue4 = Player.YPos
			TempValue4 >>= 16
			TempValue4 += 8

			// See if the player's on a fire-compatible tile
			Get16x16TileInfo(TempValue0, TempValue3, TempValue4, TILEINFO_ANGLEB)

			if TempValue0 == 1
				Object.FlamesTimer = 4

				// Spawn a Flame Trail behind the player
				CreateTempObject(TypeName[Fire Trail], 0, Player.XPos, Player.YPos)
				if Player.Speed < 0
					Object[TempObjectPos].Direction = FACING_LEFT
				else
					Object[TempObjectPos].Direction = FACING_RIGHT
				end if
				Object[TempObjectPos].DrawOrder = 4
				Object[TempObjectPos].iYPos += Player.CollisionBottom

			end if
		end if
	end if

end sub


sub ObjectStartup

	// Place the object into the scene and make it always active
	Object[19].Type = TypeName[R7 Setup]
	Object[19].Priority = PRIORITY_ACTIVE

	// Setup the palette cycle

	// First, copy the main palette bank into banks 1-5
	// (Side note - 1-5? But only banks 0-1 are actually used throughout the stage...)
	CopyPalette(0, 1)
	CopyPalette(0, 2)
	CopyPalette(0, 3)
	CopyPalette(0, 4)
	CopyPalette(0, 5)

	// And now insert the modified colors into the alternate palette banks
	TempValue0 = 0
	TempValue1 = 0
	TempValue2 = 32
	while TempValue0 < 2
		LoadPalette("R7A_PalCycle.act", TempValue0, 160, TempValue1, TempValue2)
		TempValue0++
		TempValue1 += 32
		TempValue2 += 32
	loop

end sub


// ========================
// Editor Subs
// ========================

sub RSDKDraw
	DrawSprite(0)
end sub


sub RSDKLoad
	LoadSpriteSheet("Global/Display.gif")
	SpriteFrame(-16, -16, 32, 32, 1, 143) // "Script" Icon

	SetVariableAlias(ALIAS_VAR_PROPVAL, "unused")
end sub