122 lines
2.4 KiB
HolyC
122 lines
2.4 KiB
HolyC
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U0 Toward(I64 *_row,I64 *_col,I64 direction)
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{
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switch (direction) {
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case 0:
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*_row-=2;
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break;
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case 1:
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if (*_row&1) *_col+=1;
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*_row-=1;
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break;
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case 2:
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if (*_row&1) *_col+=1;
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*_row+=1;
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break;
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case 3:
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*_row+=2;
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break;
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case 4:
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if (!(*_row&1)) *_col-=1;
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*_row+=1;
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break;
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case 5:
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if (!(*_row&1)) *_col-=1;
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*_row-=1;
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break;
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}
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}
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I64 FacingChg(I64 f1,I64 f2)
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{
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I64 res=(f1+6-f2)%6;
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if (res>=3)
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return 6-res;
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else
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return res;
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}
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U0 RowCol2XY(F64 *_x,F64 *_y,I64 row,I64 col)
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{
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Pt *c;
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row=ClampI64(row,0,map_rows);
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col=ClampI64(col,0,map_cols);
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c=&hex_centers[row][col];
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*_x=c->x;
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*_y=c->y;
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}
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U0 XY2RowCol(I64 *_row,I64 *_col,F64 x,F64 y)
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{
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*_col=(x-DCOS/2)/(HEX_SIDE+DCOS);
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if (*_col&1)
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*_row=ToI64((y-DSIN)/(2*DSIN))*2+1;
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else
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*_row=ToI64(y/(2*DSIN))*2;
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*_col>>=1;
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*_row=ClampI64(*_row,0,map_rows-1);
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*_col=ClampI64(*_col,0,map_cols-1);
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}
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Unit *UnitFind(I64 row,I64 col)
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{//Finds unit in a hexagon.
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I64 i,j;
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for (j=0;j<2;j++)
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for (i=0;i<UNITS_NUM;i++)
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if (units[j][i].life>0 &&
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units[j][i].row==row &&
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units[j][i].col==col)
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return &units[j][i];
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return NULL;
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}
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Bool CursorInWin(CTask *task,I64 x,I64 y)
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{
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if (0<=x+task->scroll_x<task->pix_width &&
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0<=y+task->scroll_y<task->pix_height)
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return TRUE;
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else
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return FALSE;
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}
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U0 CursorUpdate(CTask *task,I64 x,I64 y)
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{
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if (CursorInWin(task,x,y))
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XY2RowCol(&cursor_row,&cursor_col,x,y);
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}
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class LOSCtrl
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{
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I64 r1,c1,r2,c2,distance;
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};
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Bool LOSPlot(LOSCtrl *l,I64 x,I64 y,I64 z)
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{//We got tricky and used z as the distance from the start of the line.
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I64 row,col;
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XY2RowCol(&row,&col,x,y);
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if ((row!=l->r1 || col!=l->c1) &&
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(row!=l->r2 || col!=l->c2) &&
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terrain[row][col]!=PLAINS) {
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if (terrain[l->r1][l->c1]==MOUNTAINS) {
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if (terrain[row][col]==MOUNTAINS || z>l->distance>>1)
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return FALSE;
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} else if (terrain[l->r2][l->c2]==MOUNTAINS) {
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if (terrain[row][col]==MOUNTAINS || z<=l->distance>>1)
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return FALSE;
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} else
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return FALSE;
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}
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return TRUE;
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}
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Bool LOS(I64 r1,I64 c1,I64 r2,I64 c2)
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{
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F64 x1,y1,x2,y2;
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LOSCtrl l;
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RowCol2XY(&x1,&y1,r1,c1);
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RowCol2XY(&x2,&y2,r2,c2);
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l.r1=r1; l.c1=c1;
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l.r2=r2; l.c2=c2;
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l.distance=Sqrt(SqrI64(x1-x2)+SqrI64(y1-y2));
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return Line(&l,x1,y1,0,x2,y2,l.distance,&LOSPlot);
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}
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