// Action model - check if action is applicable
public bool CheckActionApplicable(BlockWorldAction action)
{
int i = ActionToI(action);
int j = ActionToJ(action);
bool ground = CheckGroundByIndex(i, j);
bool immutable = CheckGroundImmutableByIndex(i, j);
bool currentSupported = CheckPositionSupported(Player.I, Player.J);
if (immutable)
{
return(false);
}
// Only certain times can the player move through ground
if (ground)
{
if (Player.Ammo == 0)
{
return(false);
}
// Lightning is only way to move upwards through ground
if (action == BlockWorldAction.Up)
{
return(currentSupported && Player.Weapon == WeaponType.Lightning);
}
// Rockets go to the sides
if (action == BlockWorldAction.Left || action == BlockWorldAction.Right)
{
return(currentSupported && Player.Weapon == WeaponType.Rockets);
}
// Bombs go down
if (action == BlockWorldAction.Down)
{
return(Player.Weapon == WeaponType.Bombs);
}
return(false);
// TODO: Minions cannot be used to determine a definite path. How to handle this?
}
else
{
// Ground support is the only influence
if (action != BlockWorldAction.Down && !currentSupported)
{
return(false);
}
return(true);
}
}
public int ActionToJ(BlockWorldAction action)
{
if (action == BlockWorldAction.Up)
{
return(Player.J - 1);
}
else if (action == BlockWorldAction.Down)
{
return(Player.J + 1);
}
return(Player.J);
}
// Gets I, J coordinates of new player position for an action
public int ActionToI(BlockWorldAction action)
{
if (action == BlockWorldAction.Left)
{
return(Player.I + 1);
}
else if (action == BlockWorldAction.Right)
{
return(Player.I - 1);
}
return(Player.I);
}
// Advance with a single action
public void Advance(BlockWorldAction action, bool collectAmmo = true)
{
// Checks action applicability
if (!CheckActionApplicable(action))
{
return;
}
// Move to new location
Player.I = ActionToI(action);
Player.J = ActionToJ(action);
// Collect ammo
if (collectAmmo)
{
WeaponType weapon = CheckAmmo(Player.I, Player.J);
if (weapon != WeaponType.None)
{
if (Player.Ammo != -1)
{
Player.Ammo = 3;
}
Player.Weapon = weapon;
justCollectedAmmo = true;
}
}
// Blow out ground if needed and reduce ammo
if (CheckGroundByIndex(Player.I, Player.J))
{
SetGroundByIndex(Player.I, Player.J, false);
Player.Ammo--;
if (Player.Ammo == 0)
{
Player.Weapon = WeaponType.None;
}
}
}
