bp-prism-game
Version:
The BP Prism Game
143 lines • 17 kB
JavaScript
import { ObservableTypeEnum } from '../enum/observable-type.enum';
import { MissileClass } from '../missile/missile.class';
/**
* The projectile service
*/
export class MissileService {
/**
* The constructor
*
* @param gameService The GameService
* @param ctx The ctx
*/
constructor(gameService, ctx) {
this.gameService = gameService;
this.ctx = ctx;
this.missiles = [];
this.currentMissilePosition = this.gameService.getGunnerPosition();
this.currentMissilePosition.x += 2.5;
this.currentMissileRotation = 0;
this.isGamePaused = false;
}
/**
* Init the service with the listener
*/
init() {
this.gameService.getMasterObservable().subscribe((event) => {
if (event.type === ObservableTypeEnum.gameOver) {
this.canFire = !event.booleanData;
}
else if (event.type === ObservableTypeEnum.missileLaunched) {
this.currentMissilePosition = event.assetCoordinateData;
this.launchMissile(event);
}
else if (event.type === ObservableTypeEnum.missileDestroyed) {
this.markMissileDestroyed(event);
}
else if (event.type === ObservableTypeEnum.prismBlastFire) {
this.firePrismBlastMissiles();
}
else if (event.type === ObservableTypeEnum.gamePaused) {
this.isGamePaused = event.booleanData;
}
});
}
/**
* Mark a Missile Destroyed
* @param event The event
*/
markMissileDestroyed(event) {
this.missiles[event.numberData].isDestroyed = true;
this.missiles[event.numberData].isAnimated = false;
}
/**
* Find any unused missiles
*/
findUnusedMissile() {
return this.missiles.filter((missile) => missile.isDestroyed)[0];
}
/**
* Return all Active Missiles
*/
getActiveMissiles() {
return this.missiles.filter((missile) => missile.isAnimated);
}
/**
* Remove all the missiles
*/
removeMissiles() {
this.getActiveMissiles().map((missile) => {
missile.isDestroyed = true;
missile.isAnimated = false;
});
}
/**
* Fire the Prism Blast Missiles
*/
firePrismBlastMissiles() {
for (let index = 0; index < 128; index++) {
this.currentMissileRotation = (index + 1) * 5.625;
let missile = this.findUnusedMissile();
if (!missile) {
missile = new MissileClass(this.gameService, this.ctx, this.missiles.length);
this.missiles.push(missile);
}
missile.isDestroyed = false;
missile.isAnimated = false;
missile.move(this.currentMissilePosition);
missile.setMissileData({
rotation: this.currentMissileRotation,
position: this.currentMissilePosition
});
// This required to keep it in front of the game component clearRect
setTimeout(() => {
missile.setMissileColor((index % 7) + 1);
missile.isAnimated = true;
}, (index + 1) * 25);
}
}
/**
* Animate the missiles
* @param now the current time stamp
*/
animate(now = 0) {
if (!this.isGamePaused) {
this.missiles
.filter((missile) => missile.isAnimated)
.map((missile) => {
missile.animate(now);
});
}
}
/**
* Launch a Missile
* @param event The event
*/
launchMissile(event) {
if (this.canFire) {
for (let index = 0; index < 3; index++) {
this.currentMissileRotation = event.assetRotationData;
if (index === 1) {
this.currentMissileRotation += 135;
}
if (index === 2) {
this.currentMissileRotation -= 135;
}
let missile = this.findUnusedMissile();
if (!missile) {
missile = new MissileClass(this.gameService, this.ctx, this.missiles.length);
this.missiles.push(missile);
}
missile.isDestroyed = false;
missile.move(event.assetCoordinateData);
missile.setMissileData({
rotation: this.currentMissileRotation,
position: event.assetCoordinateData
});
missile.isAnimated = true;
missile.unsetMissileColor();
}
}
}
}
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{ GameService } from './game.service';\nimport { ObservableModel } from '../model/observable.model';\nimport { ObservableTypeEnum } from '../enum/observable-type.enum';\nimport { MissileClass } from '../missile/missile.class';\nimport { MissileLaunchModel } from '../missile/model/missile-launch.model';\nimport { IAsset } from '../interface/asset.interface';\n\n/**\n * The projectile service\n */\nexport class MissileService {\n  /**\n   * The missiles\n   */\n  private missiles: MissileClass[];\n  /**\n   * The can fire\n   */\n  private canFire: boolean;\n  /**\n   * The current missile rotation\n   */\n  private currentMissileRotation: number;\n  /**\n   * The current missile Position\n   */\n  private currentMissilePosition: IAsset;\n  /**\n   * The game is paused\n   */\n  private isGamePaused: boolean;\n\n  /**\n   * The constructor\n   *\n   * @param gameService The GameService\n   * @param ctx The ctx\n   */\n  constructor(private gameService: GameService, private ctx: CanvasRenderingContext2D) {\n    this.missiles = [];\n    this.currentMissilePosition = this.gameService.getGunnerPosition();\n    this.currentMissilePosition.x += 2.5;\n    this.currentMissileRotation = 0;\n    this.isGamePaused = false;\n  }\n\n  /**\n   * Init the service with the listener\n   */\n  public init(): void {\n    this.gameService.getMasterObservable().subscribe((event: ObservableModel) => {\n      if (event.type === ObservableTypeEnum.gameOver) {\n        this.canFire = !event.booleanData;\n      } else if (event.type === ObservableTypeEnum.missileLaunched) {\n        this.currentMissilePosition = event.assetCoordinateData;\n        this.launchMissile(event);\n      } else if (event.type === ObservableTypeEnum.missileDestroyed) {\n        this.markMissileDestroyed(event);\n      } else if (event.type === ObservableTypeEnum.prismBlastFire) {\n        this.firePrismBlastMissiles();\n      } else if (event.type === ObservableTypeEnum.gamePaused) {\n        this.isGamePaused = event.booleanData;\n      }\n    });\n  }\n\n  /**\n   * Mark a Missile Destroyed\n   * @param event The event\n   */\n  private markMissileDestroyed(event: ObservableModel): void {\n    this.missiles[event.numberData].isDestroyed = true;\n    this.missiles[event.numberData].isAnimated = false;\n  }\n\n  /**\n   * Find any unused missiles\n   */\n  private findUnusedMissile(): MissileClass {\n    return this.missiles.filter((missile: MissileClass) => missile.isDestroyed)[0];\n  }\n\n  /**\n   * Return all Active Missiles\n   */\n  public getActiveMissiles(): MissileClass[] {\n    return this.missiles.filter((missile: MissileClass) => missile.isAnimated);\n  }\n\n  /**\n   * Remove all the missiles\n   */\n  public removeMissiles(): void {\n    this.getActiveMissiles().map((missile: MissileClass) => {\n      missile.isDestroyed = true;\n      missile.isAnimated = false;\n    });\n  }\n\n  /**\n   * Fire the Prism Blast Missiles\n   */\n  private firePrismBlastMissiles(): void {\n    for (let index = 0; index < 128; index++) {\n      this.currentMissileRotation = (index + 1) * 5.625;\n\n      let missile = this.findUnusedMissile();\n      if (!missile) {\n        missile = new MissileClass(this.gameService, this.ctx, this.missiles.length);\n        this.missiles.push(missile);\n      }\n\n      missile.isDestroyed = false;\n      missile.isAnimated = false;\n      missile.move(this.currentMissilePosition);\n      missile.setMissileData({\n        rotation: this.currentMissileRotation,\n        position: this.currentMissilePosition\n      } as MissileLaunchModel);\n\n      // This required to keep it in front of the game component clearRect\n      setTimeout(() => {\n        missile.setMissileColor((index % 7) + 1);\n        missile.isAnimated = true;\n      }, (index + 1) * 25);\n    }\n  }\n\n  /**\n   * Animate the missiles\n   * @param now  the current time stamp\n   */\n  animate(now = 0): void {\n    if (!this.isGamePaused) {\n      this.missiles\n        .filter((missile: MissileClass) => missile.isAnimated)\n        .map((missile: MissileClass) => {\n          missile.animate(now);\n        });\n    }\n  }\n\n  /**\n   * Launch a Missile\n   * @param event The event\n   */\n  private launchMissile(event: ObservableModel): void {\n    if (this.canFire) {\n      for (let index = 0; index < 3; index++) {\n        this.currentMissileRotation = event.assetRotationData;\n\n        if (index === 1) {\n          this.currentMissileRotation += 135;\n        }\n        if (index === 2) {\n          this.currentMissileRotation -= 135;\n        }\n\n        let missile = this.findUnusedMissile();\n        if (!missile) {\n          missile = new MissileClass(this.gameService, this.ctx, this.missiles.length);\n          this.missiles.push(missile);\n        }\n        missile.isDestroyed = false;\n\n        missile.move(event.assetCoordinateData);\n        missile.setMissileData({\n          rotation: this.currentMissileRotation,\n          position: event.assetCoordinateData\n        } as MissileLaunchModel);\n        missile.isAnimated = true;\n\n        missile.unsetMissileColor();\n      }\n    }\n  }\n}\n"]}