108 lines
3.6 KiB
TypeScript
108 lines
3.6 KiB
TypeScript
module TS.SpaceTac {
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/**
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* A single action in the sequence result from the simulator
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*/
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export type MoveFirePart = {
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action: BaseAction
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target: Target
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ap: number
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}
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/**
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* A simulation result
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*/
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export class MoveFireResult {
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// Simulation success, false only if no route can be found
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success = false
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// Ideal successive parts to make the full move+fire
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parts: MoveFirePart[] = []
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need_move = false
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can_move = false
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can_end_move = false
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total_move_ap = 0
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move_location = new Target(0, 0, null)
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need_fire = false
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can_fire = false
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total_fire_ap = 0
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fire_location = new Target(0, 0, null)
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};
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/**
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* Utility to simulate a move+fire action.
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*
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* This is also a helper to bring a ship in range to fire a weapon.
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*/
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export class MoveFireSimulator {
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ship: Ship;
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constructor(ship: Ship) {
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this.ship = ship;
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}
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/**
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* Find the best available engine for moving
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*/
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findBestEngine(): Equipment | null {
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let engines = this.ship.listEquipment(SlotType.Engine);
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if (engines.length == 0) {
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return null;
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} else {
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engines.sort((a, b) => cmp(b.distance, a.distance));
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return engines[0];
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}
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}
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/**
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* Simulate a given action on a given valid target.
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*/
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simulateAction(action: BaseAction, target: Target): MoveFireResult {
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let result = new MoveFireResult();
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let dx = target.x - this.ship.arena_x;
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let dy = target.y - this.ship.arena_y;
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let distance = Math.sqrt(dx * dx + dy * dy);
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let ap = this.ship.values.power.get();
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let action_radius = action.getRangeRadius(this.ship);
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if (action instanceof MoveAction || distance > action_radius) {
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let move_distance = action instanceof MoveAction ? distance : distance - action_radius;
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if (move_distance > 0.000001) {
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result.need_move = true;
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let move_target = new Target(this.ship.arena_x + dx * move_distance / distance, this.ship.arena_y + dy * move_distance / distance, null);
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let engine = this.findBestEngine();
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if (engine) {
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result.total_move_ap = engine.action.getActionPointsUsage(this.ship, move_target);
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result.can_move = ap > 0;
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result.can_end_move = result.total_move_ap <= ap;
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result.move_location = move_target;
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result.parts.push({ action: engine.action, target: move_target, ap: result.total_move_ap });
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ap -= result.total_move_ap;
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distance -= move_distance;
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}
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}
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}
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if (distance <= action_radius) {
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result.success = true;
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if (!(action instanceof MoveAction)) {
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result.need_fire = true;
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result.total_fire_ap = action.getActionPointsUsage(this.ship, target);
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result.can_fire = result.total_fire_ap <= ap;
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result.fire_location = target;
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result.parts.push({ action: action, target: target, ap: result.total_fire_ap });
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}
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} else {
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result.success = false;
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}
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return result;
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}
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}
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}
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