/* sub_7354A */
/// <summary>
/// Returns if playerB can see playerA
/// </summary>
internal static bool CanSeeCombatant(int direction, Point playerA, Point playerB)
{
if (playerA.MapInBounds() == false || playerB.MapInBounds() == false)
{
return false;
}
if (direction == 0xff || direction == 8)
{
return true;
}
int facingX = playerB.x + gbl.MapDirectionXDelta[direction];
int facingY = playerB.y + gbl.MapDirectionYDelta[direction];
if (playerB == playerA ||
(facingX == playerA.x && facingY == playerA.y))
{
return true;
}
bool canSee;
switch (direction)
{
case 0:
canSee = ((playerA.x >= facingX && playerA.y <= ((facingX - playerA.x) + facingY)) ||
(playerA.x <= facingX && playerA.y <= ((playerA.x - facingX) + facingY)));
break;
case 1:
canSee = ((playerA.x >= facingX && playerA.y <= ((facingX - playerA.x) + facingY)) ||
(playerA.x >= ((facingX - facingY) + playerA.y) && playerA.y <= facingY));
break;
case 2:
canSee = ((playerA.x >= (facingX + facingY - playerA.y) && playerA.y <= facingY) ||
(playerA.x >= (facingX + playerA.y - facingY) && playerA.y >= facingY));
break;
case 3:
canSee = ((playerA.x >= ((facingX + playerA.y) - facingY) && playerA.y >= facingY) ||
(playerA.x >= facingX && playerA.y >= ((playerA.x - facingX) + facingY)));
break;
case 4:
canSee = ((playerA.x >= facingX && playerA.y >= ((playerA.x - facingX) + facingY)) ||
(playerA.x <= facingX && playerA.y >= ((facingX - playerA.x) + facingY)));
break;
case 5:
canSee = ((playerA.x <= facingX && playerA.y >= ((facingX - playerA.x) + facingY)) ||
(playerA.x <= ((facingX + facingY) - playerA.y) && playerA.y >= facingY));
break;
case 6:
canSee = ((playerA.x <= ((facingX + facingY) - playerA.y) && playerA.y >= facingY) ||
(playerA.x <= ((facingX + playerA.y) - facingY) && playerA.y <= facingY));
break;
case 7:
canSee = ((playerA.x <= ((facingX + playerA.y) - facingY) && playerA.y <= facingY) ||
(playerA.x <= facingX && playerA.y <= ((playerA.x - facingX) + facingY)));
break;
case 8:
canSee = true;
break;
default:
throw new System.ApplicationException("Switch value unexpected");
}
return canSee;
}
