141 lines
4.8 KiB
TypeScript
141 lines
4.8 KiB
TypeScript
module TS.SpaceTac {
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// Base class for action definitions
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export class BaseAction {
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// Identifier code for the type of action
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code: string
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// Human-readable name
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name: string
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// Boolean at true if the action needs a target
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needs_target: boolean
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// Equipment that triggers this action
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equipment: Equipment | null
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// Create the action
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constructor(code: string, name: string, needs_target: boolean, equipment: Equipment | null = null) {
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this.code = code;
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this.name = name;
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this.needs_target = needs_target;
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this.equipment = equipment;
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}
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/**
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* Check basic conditions to know if the ship can use this action at all
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*
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* Method to extend to set conditions
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*
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* Returns an informative message indicating why the action cannot be used, null otherwise
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*/
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checkCannotBeApplied(ship: Ship, remaining_ap: number | null = null): string | null {
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let battle = ship.getBattle();
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if (battle && battle.playing_ship !== ship) {
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// Ship is not playing
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return "ship not playing";
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}
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// Check AP usage
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if (remaining_ap === null) {
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remaining_ap = ship.values.power.get();
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}
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var ap_usage = this.getActionPointsUsage(ship, null);
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if (remaining_ap < ap_usage) {
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return "not enough power";
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}
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// Check cooldown
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if (this.equipment && !this.equipment.cooldown.canUse()) {
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return "overheated";
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}
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return null;
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}
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// Get the number of action points the action applied to a target would use
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getActionPointsUsage(ship: Ship, target: Target | null): number {
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return 0;
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}
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// Get the range of this action
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getRangeRadius(ship: Ship): number {
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return 0;
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}
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// Get the effect area radius of this action
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getBlastRadius(ship: Ship): number {
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return 0;
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}
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// Method to check if a target is applicable for this action
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// Will call checkLocationTarget or checkShipTarget by default
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checkTarget(ship: Ship, target: Target | null): Target | null {
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if (this.checkCannotBeApplied(ship)) {
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return null;
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} else if (target) {
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if (target.ship) {
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return this.checkShipTarget(ship, target);
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} else {
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return this.checkLocationTarget(ship, target);
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}
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} else {
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return null;
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}
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}
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// Method to reimplement to check if a space target is applicable
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// Must return null if the target can't be applied, an altered target, or the original target
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checkLocationTarget(ship: Ship, target: Target): Target | null {
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return null;
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}
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// Method to reimplement to check if a ship target is applicable
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// Must return null if the target can't be applied, an altered target, or the original target
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checkShipTarget(ship: Ship, target: Target): Target | null {
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return null;
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}
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// Apply an action, returning true if it was successful
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apply(ship: Ship, target: Target | null): boolean {
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let reject = this.checkCannotBeApplied(ship);
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if (reject == null) {
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let checked_target = this.checkTarget(ship, target);
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if (!checked_target && this.needs_target) {
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console.warn("Action rejected - invalid target", ship, this, target);
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return false;
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}
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let cost = this.getActionPointsUsage(ship, checked_target);
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if (!ship.useActionPoints(cost)) {
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console.warn("Action rejected - not enough power", ship, this, checked_target);
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return false;
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}
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if (this.equipment) {
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this.equipment.addWear(1);
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ship.listEquipment(SlotType.Power).forEach(equipment => equipment.addWear(1));
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this.equipment.cooldown.use();
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}
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this.customApply(ship, checked_target);
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return true;
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} else {
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console.warn(`Action rejected - ${reject}`, ship, this, target);
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return false;
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}
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}
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// Method to reimplement to apply a action
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protected customApply(ship: Ship, target: Target | null) {
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}
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/**
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* Get textual description of effects
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*/
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getEffectsDescription(): string {
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return "";
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}
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}
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}
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