public WeaponParams(int w, int t, float a, WeaponDamageRange rng)
{
weapon = w;
target = t;
accuracy = a;
range = rng;
}
public void DisplayAttack(float accuracy, WeaponDamageRange range)
{
gameObject.SetActive(true);
accuracyText.transform.parent.gameObject.SetActive(true);
shieldRangeText.transform.parent.gameObject.SetActive(true);
hullRangeText.transform.parent.gameObject.SetActive(true);
accuracyText.text = accuracy.ToString("F2");
shieldRangeText.text = range.shieldRange.x.ToString("F2") + " - " + range.shieldRange.y.ToString("F2");
hullRangeText.text = range.hullRange.x.ToString("F2") + " - " + range.hullRange.y.ToString("F2");
}
public WeaponDamageRange CalculateDamageRange(WeaponProperties weapon, float accuracy, FiringZone.Face face, float targetShield, float priorShieldDamage = 0)
{
WeaponDamageRange damageRange = new WeaponDamageRange();
damage.AddModifier(properties.Profile[(int)face]);
// target has a shield - need to factor in each weapon types effectiveness
if (targetShield - priorShieldDamage > 0)
{
// a list going from most effective to least effective against shields
foreach (var shieldPriority in DamageTypeEffect.SHIELD_PRIORITY_LIST)
{
Vector2Int range = weapon.Damage[shieldPriority];
// TODO add modifiers of effect
// THIS IS PROBLEM AREA
// TODO doing targetDamage.shieldRange.x is being conservative
// doing targetDamage.shieldRange.y would be greedy
if (damageRange.shieldRange.x >= targetShield - priorShieldDamage)
{
damage.BaseValue = range.x;
damageRange.hullRange.x += damage.Value * DamageTypeEffect.HullEffect(shieldPriority);
damage.BaseValue = range.y;
damageRange.hullRange.y += damage.Value * DamageTypeEffect.HullEffect(shieldPriority);
}
// else if (damageRange.shieldRange.y >= targetShield - targetDamage.shieldRange.x)
// {
// damage.BaseValue = range.x;
// damageRange.shieldRange.x += damage.Value;
// damage.BaseValue = range.y;
// damageRange.hullRange.y += damage.Value;
// }
else
{
damage.BaseValue = range.x;
damageRange.shieldRange.x += damage.Value * DamageTypeEffect.ShieldEffect(shieldPriority);
damage.BaseValue = range.y;
damageRange.shieldRange.y += damage.Value * DamageTypeEffect.ShieldEffect(shieldPriority);
}
}
damageRange *= accuracy;
damageRange.shieldRange.x = Mathf.Clamp(damageRange.shieldRange.x, 0, targetShield);
damageRange.shieldRange.y = Mathf.Clamp(damageRange.shieldRange.y, 0, targetShield);
}
else
{
// if the target has no shield it is simply hull damage
// hull damage of a weapon can be precomputed and cached with effectivenesses
damage.BaseValue = weapon.HullDamage.x;
damageRange.hullRange.x = damage.Value;
damage.BaseValue = weapon.HullDamage.y;
damageRange.hullRange.y = damage.Value;
damageRange *= accuracy;
}
damage.RemoveModifier(properties.Profile[(int)face]);
return(damageRange);
}
List <Tuple <ActionType, ActionParams> > EvaluateAI()
{
currentAP = ShipDefaults.BASE_AP; // TODO REMOVE
field.GenerateField(); // TODO REMOVE
System.Text.StringBuilder str; // TODO REMOVE
int weaponCnt = Weapons.Length;
int shipCnt = PlayerShip.PlayerShips.Count;
Vector3 position = transform.position;
// Caching the accuracy and face the ship is on
Tuple <float, FiringZone.Face>[] targetParams = new Tuple <float, FiringZone.Face> [weaponCnt * shipCnt];
WeaponDamageRange[] targetDamage = new WeaponDamageRange[shipCnt];
// Things the AI will do
// List<Tuple<ActionType, int, int>> actionList = null;
List <Tuple <ActionType, ActionParams> > actionList = null;
// Best action
float maxActionValue = 0;
for (int i = 0; i < CurrentAP; i++)
{
// AP after a move (ie each iteration is assuming 1 movement)
int ap = CurrentAP - i;
Zone.RecalculateFrustum(position, transform.rotation);
// Calculate + cache the accuracy of a weapon to each ship and the face the ship is on from the ship
// This is just setup
// TODO this can be put off into the recursion loop
for (int j = 0; j < shipCnt; j++)
{
Ship target = PlayerShip.PlayerShips[j];
FiringZone.Face face = Zone.FrustrumFace(target.transform.position);
if (face == FiringZone.Face.None || properties.Profile[(int)face].Value == 0)
{
for (int k = 0; k < weaponCnt; k++)
{
targetParams[k * shipCnt + j] = new Tuple <float, FiringZone.Face>(0, FiringZone.Face.None);
}
Debug.Log("Skip face.");
continue;
}
System.Text.StringBuilder cacheStr = new System.Text.StringBuilder($"Ship: {j} => Face: {face}");
targetDamage[j] = new WeaponDamageRange();
for (int k = 0; k < weaponCnt; k++)
{
if (Weapons[k].apCost > CurrentAP - i)
{
continue;
}
float acc = CalculateAccuracy(
Weapons[k],
target.transform.position,
target.properties.Evasion.Value,
position
);
// if (acc < minAccuracy) continue;
cacheStr.Append($" Weapon: {k} => Accuracy: {acc}");
targetParams[k * shipCnt + j] = new Tuple <float, FiringZone.Face>(acc, face);
}
Debug.Log(cacheStr);
}
// List of each actions to perform (in order of action) =>
// ActionType (move/weapon/ability), movement units or weapon index, ship to target
int actionListCnt = 1;
// var actionListClone = new List<Tuple<ActionType, int, int>>(CurrentAP){
// new Tuple<ActionType, int, int>(ActionType.Move, i, 0)
// };
var actionListClone = new List <Tuple <ActionType, ActionParams> >(CurrentAP)
{
new Tuple <ActionType, ActionParams>(ActionType.Move, new MoveParams(i))
};
// iterate through each weapon to evaluate the possible damage
for (int j = 0; j < weaponCnt; j++)
{
// calculate the value of chosing this weapon 1st (recursive function, will go until ap runs out)
// returns maximum outcome and action list to achieve this
float actionsValue = WeaponValue(ap, j, new int[weaponCnt], targetParams, targetDamage, actionListClone);
if (actionsValue > maxActionValue)
{
maxActionValue = actionsValue;
actionList = new List <Tuple <ActionType, ActionParams> >(actionListClone);
}
// str = new System.Text.StringBuilder($"Action List: {actionsValue} => {actionListClone.Count}\n");
// foreach (var action in actionListClone)
// {
// str.Append($"Action: {action.Item1}, ");
// switch (action.Item1) {
// case ActionType.Move:
// str.Append($"Units: {action.Item2}\n");
// break;
// case ActionType.Weapon:
// str.Append($"Weapon Index: {action.Item2}, Target: {action.Item3}\n");
// break;
// }
// }
// Debug.Log(str);
actionListClone.RemoveRange(actionListCnt, actionListClone.Count - 1);
}
// "moves" the ship in direction of vector field
for (int j = 0; j < properties.Speed.Value; j++)
{
position += field.GetDirection(position);
}
// Debug.Log($"position: {position}");
// recalculates the planes of attack (assumes no rotation currently)
}
// if max action isn't that great just do full movement (can be changed to save ap)
if (maxActionValue < minActionValue)
{
actionList = new List <Tuple <ActionType, ActionParams> > {
// new Tuple<ActionType, ActionParams>(ActionType.Move, new MoveParams(CurrentAP))
}
}
;
str = new System.Text.StringBuilder($"Action List: {maxActionValue} => {actionList.Count}\n");
foreach (var action in actionList)
{
str.Append($"Action: {action.Item1}, {action.Item2}\n");
// switch (action.Item1) {
// case ActionType.Move:
// str.Append(action.Item2 + "\n");
// break;
// case ActionType.Weapon:
// str.Append($"Weapon Index: {action.Item2}, Target: {action.Item3}\n");
// break;
// }
}
Debug.Log(str);
return(actionList);
}
float WeaponValue(int ap, int weaponIndex,
int[] weaponCooldowns,
Tuple <float, FiringZone.Face>[] targetParams,
WeaponDamageRange[] targetDamage,
List <Tuple <ActionType, ActionParams> > actionList)
{
// can't afford to use this weapon
if (ap < Weapons[weaponIndex].apCost ||
Weapons[weaponIndex].CurrentCooldown > 0 ||
weaponCooldowns[weaponIndex] > 0)
{
return(0);
}
int shipCnt = PlayerShip.PlayerShips.Count;
float maxDmgSum = 0;
WeaponParams parameters = null;
// Find the ship that would take the most damage from this weapon
for (int i = 0; i < shipCnt; i++)
{
Ship target = PlayerShip.PlayerShips[i];
int index = weaponIndex * shipCnt + i;
if (targetParams[index] == null ||
// targetParams[index].Item1 < minAccuracy ||
targetParams[index].Item2 == FiringZone.Face.None ||
false)
{
continue;
}
// Where the damage is calculated
// Vector2 dmg = CalculateDamageRange(targetDamage);
// dmg *= targetParams[index].Item1;
// float dmgSum = dmg.x + dmg.y;
WeaponDamageRange dmgRange = CalculateDamageRange(
Weapons[weaponIndex],
targetParams[index].Item1,
targetParams[index].Item2,
target.properties.Shield.Value,
targetDamage[i].shieldRange.x
);
float dmgSum = dmgRange.DamageSum();
if (dmgSum > maxDmgSum)
{
maxDmgSum = dmgSum;
parameters = new WeaponParams(weaponIndex, i, targetParams[index].Item1, dmgRange);
}
}
Debug.Log($"Damage Sum: {maxDmgSum} {parameters}");
if (maxDmgSum <= 0 || parameters == null)
{
return(0);
}
targetDamage[parameters.target] += parameters.range;
actionList.Add(new Tuple <ActionType, ActionParams>(ActionType.Weapon, parameters));
ap -= Weapons[weaponIndex].apCost;
weaponCooldowns[weaponIndex] = Weapons[weaponIndex].TurnCooldown;
return(maxDmgSum);
int weaponCnt = Weapons.Length;
float maxWeaponValue = 0;
int actionListCnt = actionList.Count;
var actionListClone = new List <Tuple <ActionType, ActionParams> >(actionList);
// Find what next set of actions would get the most benefit
for (int i = 0; i < weaponCnt; i++)
{
// recursion
float weaponDmg = WeaponValue(ap, i, weaponCooldowns, targetParams, targetDamage, actionListClone);
if (weaponDmg > maxWeaponValue)
{
maxWeaponValue = weaponDmg;
actionList = new List <Tuple <ActionType, ActionParams> >(actionListClone);
}
actionListClone.RemoveRange(actionListCnt, actionListClone.Count - actionListCnt);
}
return(maxDmgSum + maxWeaponValue);
}
}