subcube.c
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#include <ultra64.h>
#include "block.h"
#include "subcube.h"
int BlockWidth = 30;
float BlockWidthVariation= 0;
int CubeDivisions[3] = {0, 0, 0};
int CubeAxisPoints[3] = {0, 0, 0};
int CurrentCubeAxis = 0;
int NumCubesPerAxis = 4;
int NumCubePolys = 0;
float CubeDivisionArray[3][MAXCUBEAXISPOINTS];
Vtx ColorCube_vtx[MAXCUBEVERTICES];
Vtx NormalCube_vtx[MAXCUBEVERTICES];
int CubeVertexColor[8][3] =
{
0xff, 0, 0,
0, 0x7f, 0,
0, 0, 0xff,
0, 0, 0,
0, 0, 0xff,
0, 0, 0,
0xff, 0, 0,
0, 0x7f, 0,
};
int CubeVertexNormal[8][3] =
{
0, 127, 0, /* 0 */
0, 0, -128, /* 1 */
0, 0, 0, /* 2 */
0, 0, 127, /* 3 */
0, -128, 0, /* 4 */
127, 0, 0, /* 5 */
0, 0, 0, /* 6 */
-128, 0, 0, /* 7 */
};
int NumCubeVertices;
int NumSubCubes;
struct PlaneVertexEntry
{
float Coordinates[3];
} CubeVertexArray[MAXCUBEVERTICES];
struct SubBlockEntry
{
int Index[8];
} SubBlockArray[MAXSUBBLOCKS];
Vtx Block_vtx[8];
Cube CubeArray[MAXBLOCKS];
void CreateCubeAxisDivisions(void)
{
int i, j;
for (i=0; i<3; i++)
{
CubeAxisPoints[i] = 2 * (CubeDivisions[i] + 1);
/* Fill out endpoints first */
CubeDivisionArray[i][0] = (i == 1 ? BlockWidth/2 : -BlockWidth/2);
CubeDivisionArray[i][CubeAxisPoints[i]-1] = (i == 1 ? -BlockWidth/2 : BlockWidth/2);
for (j=0; j<CubeDivisions[i]; j++)
{
CubeDivisionArray[i][j*2+1] =
CubeDivisionArray[i][j*2+2] =
(-BlockWidth/2 + BlockWidth /
(CubeDivisions[i] + 1.0) * (j+1.0)) *
(i == 1 ? -1.0 : 1.0);
}
}
}
void CreateCubeVertexArray(void)
{
int i;
/* Now we compute the vertex array */
NumCubeVertices = CubeAxisPoints[0] * CubeAxisPoints[1] * CubeAxisPoints[2];
for (i=0; i<3*NumCubeVertices; i++)
{
CubeVertexArray[i/3].Coordinates[i%3] =
CubeDivisionArray[i%3][(i%3==0) ? (i/3) % CubeAxisPoints[0] :
((i%3==1) ? ((i/3) / CubeAxisPoints[0]) % CubeAxisPoints[1] :
(i/3) / (CubeAxisPoints[0] * CubeAxisPoints[1]))];
}
}
void KnitSubCubes(void)
{
int i, j, k;
int BlockIndexPointer, BaseVertex;
NumSubCubes = NumCubeVertices / 8;
BlockIndexPointer = 0;
for (k=0; k<CubeAxisPoints[2]; k+=2)
{
for (j=0; j<CubeAxisPoints[1]; j+=2)
{
for (i=0; i<CubeAxisPoints[0]; i+=2)
{
BaseVertex = k*CubeAxisPoints[1]*CubeAxisPoints[0] + j*CubeAxisPoints[0] + i;
SubBlockArray[BlockIndexPointer].Index[0] = BaseVertex ;
SubBlockArray[BlockIndexPointer].Index[1] = BaseVertex + 1 ;
SubBlockArray[BlockIndexPointer].Index[2] = BaseVertex + 1 + CubeAxisPoints[0] * CubeAxisPoints[1];
SubBlockArray[BlockIndexPointer].Index[3] = BaseVertex + CubeAxisPoints[0] * CubeAxisPoints[1];
SubBlockArray[BlockIndexPointer].Index[4] = BaseVertex + CubeAxisPoints[0] ;
SubBlockArray[BlockIndexPointer].Index[5] = BaseVertex + 1 + CubeAxisPoints[0] ;
SubBlockArray[BlockIndexPointer].Index[6] = BaseVertex + 1 + CubeAxisPoints[0] + CubeAxisPoints[0] * CubeAxisPoints[1];
SubBlockArray[BlockIndexPointer].Index[7] = BaseVertex + CubeAxisPoints[0] + CubeAxisPoints[0] * CubeAxisPoints[1];
BlockIndexPointer++;
}
}
}
}
void CreateCubeSuperVertices(void)
{
int VertexIndexPointer, i, j;
VertexIndexPointer = 0;
for (i=0; i<NumSubCubes; i++)
{
for (j=0; j<8; j++)
{
V(ColorCube_vtx + VertexIndexPointer,
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[0] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[0] > 0 ? 0.5 : -0.5)),
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[1] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[1] > 0 ? 0.5 : -0.5)),
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[2] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[2] > 0 ? 0.5 : -0.5)),
0,
((j==3) || (j==7) || (j==0) || (j==4)) ? (31 << 6) : (0 << 6),
((j==0) || (j==1) || (j==2) || (j==3)) ? (31 << 6) : (0 << 6),
CubeVertexColor[j][0], CubeVertexColor[j][1], CubeVertexColor[j][2], 0xff);
V(NormalCube_vtx + VertexIndexPointer,
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[0] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[0] > 0 ? 0.5 : -0.5)),
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[1] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[1] > 0 ? 0.5 : -0.5)),
(int) (CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[2] +
(CubeVertexArray[SubBlockArray[i].Index[j]].Coordinates[2] > 0 ? 0.5 : -0.5)),
0,
((j==3) || (j==7) || (j==0) || (j==4)) ? (31 << 6) : (0 << 6),
((j==0) || (j==1) || (j==2) || (j==3)) ? (31 << 6) : (0 << 6),
CubeVertexNormal[j][0], CubeVertexNormal[j][1], CubeVertexNormal[j][2], 0xff);
VertexIndexPointer++;
}
}
}
void CreateSubCubes(void)
{
CreateCubeAxisDivisions();
CreateCubeVertexArray();
KnitSubCubes();
CreateCubeSuperVertices();
}
void InitCubeRotations(void)
{
int i, j;
float AxisLength, RandomValue, FlipAxis;
for (i=0; i<MAXBLOCKSPERAXIS*MAXBLOCKSPERAXIS*MAXBLOCKSPERAXIS; i++)
{
AxisLength = 0;
for (j=0; j<3; j++)
{
RandomValue = frand();
CubeArray[i].RotationAxis[j] = RandomValue;
AxisLength += RandomValue * RandomValue;
}
FlipAxis = (frand() > 0.5) ? -1.0 : 1.0;
AxisLength = sqrtf(AxisLength) * FlipAxis;
for (j=0; j<3; j++)
{
CubeArray[i].RotationAxis[j] /= AxisLength;
}
CubeArray[i].theta = 0;
CubeArray[i].thetaDelta = 1.0 + 6.5*frand();
CubeArray[i].scale = frand();
}
}
void BlockDL(int Offset)
{
/* Top */
gSP1Triangle(glistp++, Offset+2, Offset+1, Offset+0, 2);
gSP1Triangle(glistp++, Offset+3, Offset+2, Offset+0, 2);
/* Bottom */
gSP1Triangle(glistp++, Offset+4, Offset+5, Offset+6, 0);
gSP1Triangle(glistp++, Offset+4, Offset+6, Offset+7, 0);
/* Left */
gSP1Triangle(glistp++, Offset+7, Offset+3, Offset+0, 0);
gSP1Triangle(glistp++, Offset+4, Offset+7, Offset+0, 1);
/* Right */
gSP1Triangle(glistp++, Offset+5, Offset+1, Offset+2, 0);
gSP1Triangle(glistp++, Offset+6, Offset+5, Offset+2, 1);
/* Near */
gSP1Triangle(glistp++, Offset+6, Offset+2, Offset+3, 2);
gSP1Triangle(glistp++, Offset+7, Offset+6, Offset+3, 2);
/* Far */
gSP1Triangle(glistp++, Offset+4, Offset+0, Offset+1, 2);
gSP1Triangle(glistp++, Offset+5, Offset+4, Offset+1, 2);
}
void WriteSuperBlockDisplayList(void)
{
int BlockIndexPointer, i;
BlockIndexPointer = 0;
for (i=0; i<NumSubCubes/2 ; i++)
{
gSPVertex(glistp++, ((ShadingMode == LIGHTING) ? NormalCube_vtx : ColorCube_vtx) + i*16, 16, 0)
BlockDL(0);
BlockDL(8);
BlockIndexPointer += 2;
}
if (BlockIndexPointer != NumSubCubes)
{
gSPVertex(glistp++, ((ShadingMode == LIGHTING) ? NormalCube_vtx : ColorCube_vtx) + i*16, 8, 0);
BlockDL(0);
}
}
#include "../Texture/RGBA16mario.h"
#include "../Texture/RGBA16marioMM.h"
void CreateBlocks(int n)
{
float XTranslateAmount, YTranslateAmount, ZTranslateAmount;
int ArrayIndex, i, j, k;
Mtx *mp;
float rotmat[4][4], scalemat[4][4], scale;
int totalcubes,cubespertask,cubenum;
float XBinHalfWidth = (XMAX - XMIN)/(NumCubesPerAxis * 2.0);
float YBinHalfWidth = (YMAX - YMIN)/(NumCubesPerAxis * 2.0);
float ZBinHalfWidth = (ZMAX - ZMIN)/(NumCubesPerAxis * 2.0);
if (UseTextureMode && n==1)
{
if (UseTextureMode == 2)
{
gSPDisplayList(glistp++, RGBA16marioMM_dl);
}
else
{
gDPLoadTextureBlock(glistp++, RGBA16mario, G_IM_FMT_RGBA,
G_IM_SIZ_16b, 32, 32, 0,
G_TX_WRAP | G_TX_MIRROR, G_TX_WRAP | G_TX_MIRROR,
5, 5, G_TX_NOLOD, G_TX_NOLOD);
}
}
totalcubes = NumCubesPerAxis*NumCubesPerAxis*NumCubesPerAxis;
cubespertask = totalcubes/((numtasks==1)?1:(numtasks-1));
for (i=0; i< NumCubesPerAxis; i++) /* Z var */
for (j=0; j < NumCubesPerAxis; j++) /* Y var */
for (k=0; k < NumCubesPerAxis; k++) /* X var */
{
cubenum = k + (j + i*NumCubesPerAxis)*NumCubesPerAxis;
if (numtasks<3 ||
(cubenum < cubespertask && n==2) ||
(cubenum >= cubespertask * (numtasks-1) && n==numtasks) ||
(cubenum >= cubespertask * (n-2) &&
cubenum < cubespertask * (n-1))) {
XTranslateAmount = XMIN + (2*k+1)*XBinHalfWidth;
YTranslateAmount = YMIN + (2*j+1)*YBinHalfWidth;
ZTranslateAmount = ZMIN - (2*(NumCubesPerAxis-1 - i)+1)*ZBinHalfWidth;
ArrayIndex = i*NumCubesPerAxis*NumCubesPerAxis + j*NumCubesPerAxis + k +1;
scale = 1 + BlockWidthVariation * (CubeArray[ArrayIndex-1].scale -1);
guRotateF(rotmat,
CubeArray[ArrayIndex-1].theta,
CubeArray[ArrayIndex-1].RotationAxis[0],
CubeArray[ArrayIndex-1].RotationAxis[1],
CubeArray[ArrayIndex-1].RotationAxis[2]);
guScaleF(scalemat,
scale,scale,scale);
guMtxCatF(rotmat,scalemat,scalemat);
guMtxF2L(scalemat,&dynamicp->modeling4[ArrayIndex]);
CubeArray[ArrayIndex-1].theta += CubeArray[ArrayIndex-1].thetaDelta;
/* force translate elements into rotate matix so we cut
* out an extra matrix-matrix multiply in the rsp */
mp = (Mtx *) &(dynamic.modeling4[ArrayIndex]);
mp->m[1][2] = (((short int)XTranslateAmount << 16) |
((short int)YTranslateAmount));
mp->m[1][3] = ((short int)ZTranslateAmount << 16) | (1);
if (UseGlobalTransforms)
{
gSPMatrix(glistp++,
OS_K0_TO_PHYSICAL(&(dynamic.modeling4[ArrayIndex])),
G_MTX_MODELVIEW|G_MTX_MUL|G_MTX_PUSH);
}
else
{
gSPMatrix(glistp++,
OS_K0_TO_PHYSICAL(&(dynamic.modeling4[ArrayIndex])),
G_MTX_MODELVIEW | G_MTX_LOAD | G_MTX_NOPUSH);
}
WriteSuperBlockDisplayList();
if (UseGlobalTransforms)
{
/* Now pop back to the global transformation state */
gSPPopMatrix(glistp++, G_MTX_MODELVIEW);
}
}
}
}