void Render::calculateView(const int8_t x, const int8_t y, const Direction dir)
{
/*
if (dir == 0)
{
xs[0]=+3; xs[1]=+3; xs[2]=+3; xs[3]=+2; xs[4]=+2; xs[5]=+2; xs[6]=+1; xs[7]=+1; xs[8]=+1; xs[9]=0; xs[10]=0; xs[11]=0;
ys[0]=-1; ys[1]=0; ys[2]=+1; ys[3]=-1; ys[4]=0; ys[5]=+1; ys[6]=-1; ys[7]=0; ys[8]=+1; ys[9]=-1; ys[10]=0; ys[11]=+1;
}
if (dir == 1)
{
xs[0]=+1; xs[1]=0; xs[2]=0-1; xs[3]=+1; xs[4]=0; xs[5]=-1; xs[6]=+1; xs[7]=0; xs[8]=-1; xs[9]=+1; xs[10]=0; xs[11]=-1;
ys[0]=+3; ys[1]=+3; ys[2]=+3; ys[3]=+2; ys[4]=+2; ys[5]=+2; ys[6]=+1; ys[7]=+1; ys[8]=+1; ys[9]=0; ys[10]=0; ys[11]=0;
}
if (dir == 2)
{
xs[0]=-3; xs[1]=-3; xs[2]=-3; xs[3]=-2; xs[4]=-2; xs[5]=-2; xs[6]=-1; xs[7]=-1; xs[8]=-1; xs[9]=0; xs[10]=0; xs[11]=0;
ys[0]=+1; ys[1]=0; ys[2]=-1; ys[3]=+1; ys[4]=0; ys[5]=-1; ys[6]=+1; ys[7]=0; ys[8]=-1; ys[9]=+1; ys[10]=0; ys[11]=-1;
}
if (dir == 3)
{
xs[0]=-1; xs[1]=0; xs[2]=+1; xs[3]=-1; xs[4]=0; xs[5]=+1; xs[6]=-1; xs[7]=0; xs[8]=+1; xs[9]=-1; xs[10]=0; xs[11]=+1;
ys[0]=-3; ys[1]=-3; ys[2]=-3; ys[3]=-2; ys[4]=-2; ys[5]=-2; ys[6]=-1; ys[7]=-1; ys[8]=-1; ys[9]=0; ys[10]=0; ys[11]=0;
}
*/
static const int8_t arrA[12] = { 3, 3, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0 };
static const int8_t arrB[12] = { -1, 0, +1, -1, 0, +1, -1, 0, +1, -1, 0, +1 };
int8_t xs, ys;
for(uint8_t i = 0; i < 12; ++i)
{
switch(dir)
{
case Direction::East: { xs = arrA[i]; ys = arrB[i]; break; }
case Direction::South: { xs = -arrB[i]; ys = arrA[i]; break; }
case Direction::West: { xs = -arrA[i]; ys = -arrB[i]; break; }
case Direction::North: { xs = arrB[i]; ys = -arrA[i]; break; }
}
wallShow[i] = wallCheck(x + xs, y + ys);
itemShow[i] = false;
if(wallShow[i] == false)
itemShow[i] = itemCheck(x + xs, y + ys);
}
wallShow[10] = false; //position player is standing on
if (wallShow[7]) //speed up by disabling hidden walls
{
wallShow[4] = false;
wallShow[0] = false;
wallShow[2] = false;
}
if (wallShow[4])
{
wallShow[1] = false;
}
}
void Render::drawMap(void)
{
// Out of interest, making this value 64 instead of 63 adds 2 bytes to the code and I have no idea why.
// Presumably it's a limitation of the AVR instruction set. AVR probably only affords 5 bits to immediate values.
constexpr static const uint8_t offsetx = System::ScreenCentreX;
// Draw map grid
for(int iy = 0, jy = 0; iy < 8; ++iy, jy += 8)
for(int ix = 0, jx = 0; ix < 8; ++ix, jx += 8)
if (wallCheck(ix,iy))
ab->drawRect(offsetx + jx, jy, 9, 9, 1);
{ // Explicit scoping in the hopes the compiler will ditch these 6 variables asap
// x3 and y3 refer to the point of the arrow. Only 6 coords are needed for 3 points
// By adding 2 to x and y up here, 10 addition operations can be eliminated
uint8_t x1 = offsetx + (player->x * 8) + 2;
uint8_t y1 = (player->y * 8) + 2;
uint8_t x2 = x1, y2 = y1;
uint8_t x3 = x1, y3 = y1;
switch(player->getDirection())
{
case Direction::East:
{
/*x1 += 0;*/ /*y1 += 0;*/
/*x2 += 0;*/ y2 += 4;
x3 += 4; y3 += 2;
break;
}
case Direction::South:
{
/*x1 += 0;*/ /*y1 += 0;*/
x2 += 4; /*y2 += 0;*/
x3 += 2; y3 += 4;
break;
}
case Direction::West:
{
x1 += 4; /*y1 += 0;*/
/*x2 += 0;*/ y2 += 2;
x3 += 4; y3 += 4;
break;
}
case Direction::North:
{
/*x1 += 0;*/ y1 += 4;
x2 += 2; /*y2 += 0;*/
x3 += 4; y3 += 4;
break;
}
}
ab->drawLine(x1, y1, x3, y3, 1);
ab->drawLine(x2, y2, x3, y3, 1);
ab->drawLine(x1, y1, x2, y2, 1);
}
// Outlines the map
ab->drawRect(offsetx, 0, System::ScreenWidth/2, System::ScreenHeight, 1);
}
///////////////////////////////////////////////////////////FUNCTIONS//////////////////////////////////////////////////////////////
int movePlayer(int playersMove, char arr[][n], int iPosition, int jPosition)
{
int tempi = iPosition;
int tempj = jPosition;
int TRUE;
// printf("players move is %c\n", playersMove);
if(playersMove == 8)
{//printf("move up\n");
iPlayerPosition -= 1;
}
else if(playersMove ==2 )
{//printf("move down\n");
iPlayerPosition += 1;
}
else if(playersMove == 6)
{//printf("move right\n");
jPlayerPosition += 1;
}
else if(playersMove == 4)
{//printf("move left\n");
jPlayerPosition -= 1;
}
TRUE = moveCheck(playersMove, arr, iPlayerPosition, jPlayerPosition);
if( TRUE == 1 && wallCheck(playersMove, arr, iPlayerPosition, jPlayerPosition) == 1)
{
//swap arrays
char temp = arr[tempi][tempj];
arr[tempi][tempj] =arr[iPlayerPosition][jPlayerPosition];
arr[iPlayerPosition][jPlayerPosition] = temp;
return TRUE;
}
else
{
iPlayerPosition = iPosition;
jPlayerPosition = jPosition;
return TRUE;
}
}
