130 lines
3.2 KiB
C++
130 lines
3.2 KiB
C++
/************************/
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/*** Tile Layer Class ***/
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/************************/
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#include "system\global.h"
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#include <DStructs.h>
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#include "utils\utils.h"
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#include "system\vid.h"
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#include "gfx\prim.h"
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#include "LayerTile.h"
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/*****************************************************************************/
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/*****************************************************************************/
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/*****************************************************************************/
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CLayerTile::CLayerTile(sLayerHdr *Hdr,sTile *_TileList,sTri *_TriList,sQuad *_QuadList,sVtx *_VtxList)
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{
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LayerHdr=Hdr;
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TileList=_TileList;
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TriList=_TriList;
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QuadList=_QuadList;
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VtxList=_VtxList;
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Map=(sTileMapElem*)MakePtr(Hdr,sizeof(sLayerHdr));
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}
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/*****************************************************************************/
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CLayerTile::~CLayerTile()
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{
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if (TileMap2d[0].List) MemFree(TileMap2d[0].List);
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if (TileMap2d[1].List) MemFree(TileMap2d[1].List);
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}
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/*****************************************************************************/
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// NEED TO UPDATE FOR DIFF MAP POS's
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void CLayerTile::InitTileMap2d(int InitX,int InitY,int Width,int Height)
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{
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int Size=Width*Height;
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int MapWidth=GetWidth();
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int MapHeight=GetWidth();
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ASSERT(Width>=SCREEN_TILE_WIDTH);
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ASSERT(Height>=SCREEN_TILE_HEIGHT);
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TileMapWidth=Width;
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TileMapHeight=Height;
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for (int Buffer=0; Buffer<2; Buffer++)
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{
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sTileMapElem *MapPtr=Map;
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sTileMap2dElem *List=(sTileMap2dElem*) MemAlloc(Size*sizeof(sTileMap2dElem),"2d TileMap");
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TileMap2d[Buffer].List=List;
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for (int Y=0; Y<Height; Y++)
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{
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for (int X=0; X<Width; X++)
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{
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sTileMap2dElem *ThisElem=&List[X+(Y*Width)];
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// Tile prim
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TSPRT_16 *ThisTile=&ThisElem->Tile;
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sTile *SrcTile=&TileList[MapPtr->Tile];
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setTSprt16(ThisTile);
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setTSprtTPage(ThisTile,SrcTile->TPage);
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ThisTile->r0=128;
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ThisTile->g0=128;
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ThisTile->b0=128;
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ThisTile->clut=SrcTile->Clut;
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ThisTile->u0=SrcTile->uv0[0];
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ThisTile->v0=SrcTile->uv0[1];
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// Table
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int TableR=(X+1) % Width;
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int TableD=(Y+1) % Height;
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ThisElem->Right=&List[TableR+(Y*Width)];
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ThisElem->Down=&List[X+(TableD*Width)];
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MapPtr++;
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}
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}
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}
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}
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/*****************************************************************************/
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void CLayerTile::RenderTileMap2d(int MapX,int MapY)
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{
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sTileMap2dElem *Table=TileMap2d[FrameFlipFlag].List;
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int XShift,YShift;
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u32 XYPos;
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const u32 XInc=16<<0;
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const u32 YInc=16<<16;
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// Setup shift bits of pos
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XShift=15-(MapX&15);
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YShift=15-(MapY&15);
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XYPos=YShift<<16 | XShift<<0;
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MapX>>=4;
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MapY>>=4;
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// Calc Start pos (fully wrapping)
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/**/ MapX=MapX % TileMapWidth;
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/**/ MapY=MapY % TileMapHeight;
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/**/ Table+=MapX;
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/**/ Table+=MapY*TileMapWidth;
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// Render it!!
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for (int TileY=0; TileY<SCREEN_TILE_HEIGHT; TileY++)
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{
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sTileMap2dElem *TableDown=Table->Down;
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u32 XYPosDown=XYPos+YInc;
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for (int TileX=0; TileX<SCREEN_TILE_WIDTH; TileX++)
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{
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TSPRT_16 *TileData=&Table->Tile;
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*(u32*)&TileData->x0=XYPos;
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/**/ //AddPrimToList(TileData,0);
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/**/ AddPrim(OtPtr,TileData);
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Table=Table->Right;
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XYPos+=XInc;
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}
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Table=TableDown;
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XYPos=XYPosDown;
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}
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}
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/*****************************************************************************/
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