successfully implement all mechanics

docs/linecount.md

@@ -2,7 +2,7 @@ Generated by: `find ./src -name '*.ts' | xargs wc -l`
 92 ./src/main.ts
 1 ./src/vite-env.d.ts
 17 ./src/classes/GameUIConstants.ts
-145 ./src/classes/gui/TowerTab.ts
+217 ./src/classes/gui/TowerTab.ts
 375 ./src/classes/gui/TowerPanel.ts
 52 ./src/classes/gui/TextInput.ts
 211 ./src/classes/gui/ModalDialog.ts
@@ -15,29 +15,30 @@ Generated by: `find ./src -name '*.ts' | xargs wc -l`
 59 ./src/classes/gui/GamePausedDialog.ts
 36 ./src/classes/gui/MessageBox.ts
 205 ./src/classes/gui/Tooltip.ts
-126 ./src/classes/Definitions.ts
+133 ./src/classes/Definitions.ts
 77 ./src/classes/game/WaveManager.ts
-260 ./src/classes/game/Grid.ts
+264 ./src/classes/game/Grid.ts
 51 ./src/classes/game/Gem.ts
-114 ./src/classes/game/TowerBehaviours.ts
-154 ./src/classes/game/Tower.ts
+324 ./src/classes/game/TowerBehaviours.ts
+192 ./src/classes/game/Tower.ts
 180 ./src/classes/game/MissionStats.ts
 100 ./src/classes/game/AnimationManager.ts
-177 ./src/classes/game/Creep.ts
+239 ./src/classes/game/Creep.ts
 47 ./src/classes/game/KeyboardManager.ts
-104 ./src/classes/game/Projectile.ts
+251 ./src/classes/game/Projectile.ts
 86 ./src/classes/game/NotificationManager.ts
-130 ./src/classes/game/TowerManager.ts
+40 ./src/classes/game/DebrisManager.ts
+135 ./src/classes/game/TowerManager.ts
 71 ./src/classes/game/HighScoreManager.ts
 76 ./src/classes/GuiObject.ts
-203 ./src/classes/Assets.ts
+209 ./src/classes/Assets.ts
 52 ./src/classes/GameObject.ts
-68 ./src/classes/Bastion.ts
-30 ./src/classes/Events.ts
+71 ./src/classes/Bastion.ts
+31 ./src/classes/Events.ts
 37 ./src/scenes/Scene.ts
 17 ./src/scenes/Settings.ts
 67 ./src/scenes/HowToPlay.ts
 59 ./src/scenes/Main.ts
-353 ./src/scenes/Game.ts
+352 ./src/scenes/Game.ts
 27 ./src/scenes/MissionPicker.ts
-`4536 total`
+`5130 total`

public/assets/json/Towers.json

@@ -91,7 +91,7 @@
             "cost": 125,
             "range": 2.5,
             "timeToLive": 12,
-            "pierce": 30
+            "pierce": 1
         }
     },
     {
@@ -120,7 +120,7 @@
         "texture": null,
         "projectile": "stone",
         "projectileTextures": [],
-        "projectileTexturesArrayLength": 2,
+        "projectileTexturesArrayLength": 1,
         "description": "If you feel a little circular.",
         "stats": {
             "damage": 2,
@@ -128,8 +128,8 @@
             "gemSlotsAmount": 3,
             "cost": 125,
             "range": 2.5,
-            "timeToLive": 12,
-            "pierce": 30
+            "timeToLive": 400,
+            "pierce": 2
         }
     },
     {

src/classes/Events.ts

@@ -7,6 +7,7 @@ export enum WaveManagerEvents {
 export enum CreepEvents {
     Died = 'died',
     TakenDamage = 'takenDamage',
+    GiveEffect = 'giveEffect',
     Escaped = 'escaped',
     Moved = 'moved',
 }

src/classes/game/Creep.ts

@@ -1,4 +1,3 @@
-import GameAssets from '../Assets';
 import Assets from '../Assets';
 import { Engine } from '../Bastion';
 import { CreepResistancesDefinition, CreepStatsDefinition, CreepType, PathDefinition } from '../Definitions';
@@ -6,6 +5,21 @@ import GameObject from '../GameObject';
 import * as PIXI from 'pixi.js';
 import { CreepEvents } from '../Events';
 
+export enum CreepEffects {
+    MovingBackwards = 'MovingBackwards',
+    DebuffTowerDebuff = 'DebuffTowerDebuff',
+}
+
+class Effect {
+    public effectEnum: CreepEffects;
+    public durationInMS: number;
+    public ticks: number = 0;
+    constructor(effectEnum: CreepEffects, durationInMS: number) {
+        this.effectEnum = effectEnum;
+        this.durationInMS = durationInMS;
+    }
+}
+
 export default class Creep extends GameObject {
     public id: number;
     public creepType: CreepType;
@@ -17,6 +31,7 @@ export default class Creep extends GameObject {
     private direction: number = 1;
     private healthBarGraphics: PIXI.Graphics = new PIXI.Graphics();
     private healthBarWidth = 50;
+    private effects: Effect[] = [];
     public health: number;
     public maxHealth: number;
     public escaped: boolean = false;
@@ -56,7 +71,10 @@ export default class Creep extends GameObject {
             CreepEvents.TakenDamage,
             (creepID, damage, gemResistanceModifications: CreepResistancesDefinition) => {
                 if (creepID != this.id) return;
-
+                if (this.effects.find((e) => e.effectEnum == CreepEffects.DebuffTowerDebuff)) {
+                    damage = damage * 1.5;
+                    console.log('multiplying damage, ' + damage);
+                }
                 // Apply resistances.
                 this.health -= damage + damage * (gemResistanceModifications.physical - this.stats.resistance.physical);
                 if (gemResistanceModifications.fire != 0)
@@ -76,23 +94,49 @@ export default class Creep extends GameObject {
                 this.UpdateHealthbar();
             }
         );
+        Engine.GameScene.events.on(
+            CreepEvents.GiveEffect,
+            (creepID: number, effect: CreepEffects, durationInMS: number) => {
+                if (creepID != this.id) return;
+                console.log(' I CAUGHT THE EVENT!');
+                if (this.effects.find((e) => e.effectEnum == effect) == undefined)
+                    this.effects.push(new Effect(effect, durationInMS));
+            }
+        );
         Engine.Grid.container.addChild(this.container);
         this.container.addChild(this.healthBarGraphics);
         this.container.addChild(this.sprite);
         this.UpdateHealthbar();
     }
+    // Used ChatGPT to make this easier to understand.
     private UpdateHealthbar() {
         this.healthBarGraphics.clear();
+
         const hp = this.health;
         const maxHp = this.maxHealth;
-        const percent = hp / maxHp;
-        const width = this.healthBarWidth * percent;
-        // ! TODO: MAKE THIS BETTER! It works like this now, but I don't like how its implemented.
-        this.healthBarGraphics.rect(-this.healthBarWidth / 2 + 3, -32, this.healthBarWidth + 4, 14);
+        const percent = Math.max(0, hp / maxHp);
+
+        const barWidth = this.healthBarWidth;
+        const barHeight = 10; // Height of the health bar
+        const borderPadding = 2; // Border thickness around the health bar
+        const offsetX = -barWidth / 2; // Centering the bar
+        const offsetY = -32; // Position above the entity
+
+        // Border
+        this.healthBarGraphics.rect(
+            offsetX - borderPadding,
+            offsetY - borderPadding,
+            barWidth + borderPadding * 2,
+            barHeight + borderPadding * 2
+        );
         this.healthBarGraphics.fill({ color: 0x000000 });
-        this.healthBarGraphics.rect(-this.healthBarWidth / 2 + 5, -30, width, 10);
+
+        // Health
+        const healthWidth = barWidth * percent;
+        this.healthBarGraphics.rect(offsetX, offsetY, healthWidth, barHeight);
         this.healthBarGraphics.fill({ color: 0xff0000 });
     }
+
     public update(elapsedMS: number) {
         if (this.dead) return;
         if (this.health <= 0) {
@@ -110,14 +154,30 @@ export default class Creep extends GameObject {
             this.escaped = true;
             return;
         }
+
         const currentCell = this.path[this.pathIndex];
         const targetCell = this.path[this.pathIndex + 1];
+        const previousCell = this.pathIndex - 1 != 0 ? this.path[this.pathIndex - 1] : this.path[0];
+        let isMovingBackwards = false;
+        for (let i = this.effects.length - 1; i >= 0; i--) {
+            let effect = this.effects[i];
+            effect.ticks += elapsedMS * Engine.GameScene.gameSpeedMultiplier;
+            if (effect.ticks >= effect.durationInMS) this.effects.splice(i, 1);
+            else if (effect.effectEnum == CreepEffects.MovingBackwards) return (isMovingBackwards = true);
+        }
 
-        // Added + 32 for centering.
-        const targetX = targetCell[0] * Engine.GridCellSize + Engine.GridCellSize / 2;
-        const targetY = targetCell[1] * Engine.GridCellSize + Engine.GridCellSize / 2;
-        const directionX = targetCell[0] - currentCell[0];
-        const directionY = targetCell[1] - currentCell[1];
+        let targetX, targetY, directionX, directionY;
+        if (!isMovingBackwards) {
+            targetX = targetCell[0] * Engine.GridCellSize + Engine.GridCellSize / 2;
+            targetY = targetCell[1] * Engine.GridCellSize + Engine.GridCellSize / 2;
+            directionX = targetCell[0] - currentCell[0];
+            directionY = targetCell[1] - currentCell[1];
+        } else {
+            targetX = previousCell[0] * Engine.GridCellSize + Engine.GridCellSize / 2;
+            targetY = previousCell[1] * Engine.GridCellSize + Engine.GridCellSize / 2;
+            directionX = currentCell[0] - previousCell[0];
+            directionY = previousCell[1] - currentCell[1];
+        }
         if (directionX > 0) {
             // Going right
             if (this.direction != 1) {
@@ -157,7 +217,9 @@ export default class Creep extends GameObject {
         }
         this.x += deltaX;
         this.y += deltaY;
-        if (increaseIndex) this.pathIndex++;
+        if (increaseIndex) {
+            if (!isMovingBackwards) this.pathIndex++;
+        }
         this.container.x = this.x;
         this.container.y = this.y;
     }

src/classes/game/DebrisManager.ts

@@ -12,7 +12,6 @@ class Debris {
         this.debris.destroy();
     }
     public update(elapsedMS) {
-        console.log(this.debris instanceof GameObject);
         if (this.debris instanceof GameObject) {
             this.debris.update(elapsedMS);
         }

src/classes/game/Grid.ts

@@ -204,6 +204,17 @@ export class Grid extends GameObject {
         if (d < range + Engine.GridCellSize / 2) return true;
         else return false;
     }
+    public GetPathCellsInRange(row, col, range) {
+        let result = [];
+        this.cells.forEach((cell) => {
+            if (cell.isPath) {
+                if (this.IsCellInRangeOfOtherCell(row, col, range, cell)) {
+                    result.push(cell);
+                }
+            }
+        });
+        return result;
+    }
     public toggleGrid(force?: 'hide' | 'show') {
         this.cells.forEach((cell) => {
             if (force) {

src/classes/game/Projectile.ts

@@ -6,6 +6,7 @@ import { CreepEvents } from '../Events';
 import { distance, Tower } from './Tower';
 import { CreepResistancesDefinition } from '../Definitions';
 import GameAssets from '../Assets';
+import { RoundMode } from '../../scenes/Game';
 
 export function calculateAngleToPoint(x, y, targetX, targetY) {
     const dx = targetX - x;
@@ -64,7 +65,7 @@ export default class Projectile extends GameObject {
 
     public update(elapsedMS) {
         if (this.deleteMe) return;
-        if (this.x > 2000 || this.x < 0 || this.y > 2000 || this.y < 0 || this.pierce <= 0 || this.timeToLive <= 0)
+        if (this.x > 1720 || this.x < 0 || this.y > 2000 || this.y < 0 || this.pierce <= 0 || this.timeToLive <= 0)
             return this.destroy();
         this.timeToLive -= Engine.GameScene.gameSpeedMultiplier;
         Engine.Grid.creeps.forEach((creep) => {
@@ -105,6 +106,111 @@ export default class Projectile extends GameObject {
     }
 }
 
+export class RailProjectile extends Projectile {
+    public visuals: PIXI.Sprite[] = [];
+    public counter: number = 0;
+    constructor(
+        x,
+        y,
+        textures,
+        angle,
+        damage,
+        tint,
+        timeToLive,
+        pierce,
+        gemResistanceModifications: CreepResistancesDefinition
+    ) {
+        super(x, y, textures, angle, damage, tint, timeToLive, pierce, gemResistanceModifications);
+        this.pierce = 1000;
+        this.timeToLive = 2000;
+    }
+
+    public destroy(): void {
+        super.destroy();
+        this.visuals.forEach((visual) => visual.destroy());
+        this.visuals = [];
+    }
+    public update(elapsedMS) {
+        super.update(elapsedMS);
+        if (this.counter == 2) {
+            this.counter = 0;
+            let newVisual = new PIXI.Sprite({
+                x: this.x,
+                y: this.y,
+                rotation: this.angle,
+                texture: this.sprite.texture,
+                scale: 0.25,
+            });
+            newVisual.anchor.set(0.5, 0.5);
+            this.visuals.push(newVisual);
+            this.visuals.forEach((visual) => {
+                if (visual.scale == null) return visual.destroy();
+                if (visual.width && visual.height && visual.alpha) {
+                    visual.width -= 4;
+                    visual.height -= 4;
+                    visual.alpha -= 0.1;
+                    if (visual.width <= 0 || visual.height <= 0 || visual.alpha <= 0) visual.destroy();
+                }
+            });
+            Engine.GameScene.stage.addChild(newVisual);
+        } else this.counter++;
+    }
+}
+
+export class TrapProjectile extends Projectile {
+    public visuals: PIXI.Sprite[] = [];
+    public counter: number = 0;
+    private goalX: number;
+    private goalY: number;
+    constructor(
+        x,
+        y,
+        textures,
+        angle,
+        goalX,
+        goalY,
+        damage,
+        tint,
+        timeToLive,
+        pierce,
+        gemResistanceModifications: CreepResistancesDefinition
+    ) {
+        super(x, y, textures, angle, damage, tint, timeToLive, pierce, gemResistanceModifications);
+        this.sprite.scale = 0.5;
+        this.goalX = goalX;
+        this.goalY = goalY;
+    }
+
+    public destroy(): void {
+        super.destroy();
+        this.visuals.forEach((visual) => visual.destroy());
+        this.visuals = [];
+    }
+    public update(elapsedMS) {
+        if (this.deleteMe) return;
+        if (this.x > 1720 || this.x < 0 || this.y > 2000 || this.y < 0 || this.pierce <= 0 || this.timeToLive <= 0)
+            return this.destroy();
+        if (distance(this.x, this.y, this.goalX, this.goalY) < 25) {
+            this.timeToLive -= Engine.GameScene.gameSpeedMultiplier;
+            Engine.Grid.creeps.forEach((creep) => {
+                if (this.pierce <= 0) return;
+                if (creep && creep.container && this.checkCollision(creep)) {
+                    this.collidedCreepIDs.push(creep);
+                    this.pierce--;
+                    this.onCollide(creep, this);
+                    return;
+                }
+            });
+        } else {
+            this.x += Math.cos(this.angle) * this.speed * elapsedMS * Engine.GameScene.gameSpeedMultiplier;
+            this.y += Math.sin(this.angle) * this.speed * elapsedMS * Engine.GameScene.gameSpeedMultiplier;
+
+            this.container.x = this.x;
+            this.container.y = this.y;
+        }
+    }
+}
+
 export class VisualLightning extends GameObject {
     public deleteMe: boolean = false;
     private c: Creep;

src/classes/game/Tower.ts

@@ -4,7 +4,7 @@ import GameObject from '../GameObject';
 import { CreepResistancesDefinition, TowerDefinition } from '../Definitions';
 import { Cell } from './Grid';
 import { TowerBehaviours } from './TowerManager';
-import Projectile from './Projectile';
+import Projectile, { RailProjectile } from './Projectile';
 import Gem from './Gem';
 import {
     DebuffTowerBehaviour,
@@ -132,18 +132,34 @@ export class Tower extends GameObject {
             }
             combinedTint = color;
         }
-        let proj = new Projectile(
-            x,
-            y,
-            this.definition.projectileTextures,
-            angle,
-            this.computedDamageToDeal,
-            combinedTint,
-            this.computedTimeToLive,
-            this.computedPierce,
-            this.totalGemResistanceModifications
-        );
-        const time = new Date().toISOString();
+
+        let proj;
+        if (this.behaviour == TowerBehaviours.RailTowerBehaviour) {
+            proj = new RailProjectile(
+                x,
+                y,
+                this.definition.projectileTextures,
+                angle,
+                this.computedDamageToDeal,
+                combinedTint,
+                this.computedTimeToLive,
+                this.computedPierce,
+                this.totalGemResistanceModifications
+            );
+        } else {
+            proj = new Projectile(
+                x,
+                y,
+                this.definition.projectileTextures,
+                angle,
+                this.computedDamageToDeal,
+                combinedTint,
+                this.computedTimeToLive,
+                this.computedPierce,
+                this.totalGemResistanceModifications
+            );
+        }
+        // const time = new Date().toISOString();
         // console.log(`${time} ${this.definition.name} shot at ${angle} degrees`);
         this.projectiles.push(proj);
         return proj;

src/classes/game/TowerBehaviours.ts

@@ -1,9 +1,10 @@
+import { RoundMode } from '../../scenes/Game';
 import GameAssets from '../Assets';
 import { Engine } from '../Bastion';
 import { TowerType } from '../Definitions';
 import { CreepEvents } from '../Events';
-import Creep from './Creep';
-import Projectile, { calculateAngleToPoint, VisualLightning } from './Projectile';
+import Creep, { CreepEffects } from './Creep';
+import Projectile, { calculateAngleToPoint, TrapProjectile, VisualLightning } from './Projectile';
 import { distance, Tower } from './Tower';
 import * as PIXI from 'pixi.js';
 
@@ -16,17 +17,21 @@ import * as PIXI from 'pixi.js';
  * @param elapsedMS - The elapsed time in milliseconds since the last update.
  */
 function projectileCheck(tower: Tower, elapsedMS: number) {
-    tower.projectiles.forEach((proj) => {
+    for (let i = tower.projectiles.length - 1; i >= 0; i--) {
+        let proj = tower.projectiles[i];
+
         if (proj.deleteMe || tower.sold) {
             proj.collidedCreepIDs.forEach(() => {
                 tower.damageDealt += tower.computedDamageToDeal;
             });
             proj.collidedCreepIDs = [];
-            tower.projectiles.splice(tower.projectiles.indexOf(proj), 1);
+
             proj.destroy();
-            proj = null;
-        } else proj.update(elapsedMS);
-    });
+            tower.projectiles.splice(i, 1);
+        } else {
+            proj.update(elapsedMS);
+        }
+    }
 }
 
 /**
@@ -74,10 +79,10 @@ export function computeGemImprovements(tower: Tower) {
     if (tower.parent.isBuffedBy.length > 0 && tower.definition.name != GameAssets.Towers[TowerType.Buff].name) {
         let buffedBy = tower.parent.isBuffedBy[0];
         tower.computedDamageToDeal += Number((buffedBy.computedDamageToDeal / 2).toFixed(1));
-        tower.computedCooldown -= (buffedBy.computedCooldown * 100) / 5 / 100;
+        tower.computedCooldown -= Number((buffedBy.computedCooldown / 5).toFixed(1));
         tower.computedRange += Number((buffedBy.computedRange / 10).toFixed(1));
-        tower.computedTimeToLive += (buffedBy.computedTimeToLive * 100) / 5 / 100;
-        tower.computedPierce += (buffedBy.computedPierce * 100) / 4 / 100;
+        tower.computedTimeToLive += Number((buffedBy.computedTimeToLive / 5).toFixed(1));
+        tower.computedPierce += Number((buffedBy.computedPierce / 4).toFixed(1));
 
         tower.totalGemResistanceModifications.physical +=
             (buffedBy.totalGemResistanceModifications.physical * 100) / 2 / 100;
@@ -95,10 +100,10 @@ export function BasicTowerBehaviour(tower: Tower, elapsedMS: number) {
     projectileCheck(tower, elapsedMS);
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
-    let creepsInRange = tower.GetCreepsInRange();
-    if (creepsInRange.length > 0) {
-        let focus = creepsInRange[0];
-        if (tower.millisecondsUntilNextShot <= 0) {
+    else {
+        let creepsInRange = tower.GetCreepsInRange();
+        if (creepsInRange.length > 0) {
+            let focus = creepsInRange[0];
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
             tower.millisecondsUntilNextShot = tower.computedCooldown;
@@ -112,9 +117,9 @@ export function CircleTowerBehaviour(tower: Tower, elapsedMS: number) {
     projectileCheck(tower, elapsedMS);
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
-    let creepsInRange = tower.GetCreepsInRange();
-    if (creepsInRange.length > 0) {
-        if (tower.millisecondsUntilNextShot <= 0) {
+    else {
+        let creepsInRange = tower.GetCreepsInRange();
+        if (creepsInRange.length > 0) {
             tower.millisecondsUntilNextShot = tower.computedCooldown;
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
@@ -136,12 +141,11 @@ export function ElectricTowerBehaviour(tower: Tower, elapsedMS: number) {
 
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
+    else {
+        let creepsInRange = tower.GetCreepsInRange();
 
-    let creepsInRange = tower.GetCreepsInRange();
-
-    if (creepsInRange.length > 0) {
-        let focus = creepsInRange[0];
-        if (tower.millisecondsUntilNextShot <= 0) {
+        if (creepsInRange.length > 0) {
+            let focus = creepsInRange[0];
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
             tower.millisecondsUntilNextShot = tower.computedCooldown;
@@ -149,36 +153,47 @@ export function ElectricTowerBehaviour(tower: Tower, elapsedMS: number) {
             proj.onCollide = (creep: Creep, proj: Projectile) => {
                 let chainedCreepIds = [];
                 proj.pierce = 0;
-                function checkNearBy(c) {
-                    let nearByCreeps = Engine.Grid.creeps.filter((nCreep) => {
+                let recursionCount = 0;
+                function checkNearBy(c: Creep) {
+                    if (recursionCount >= 50) {
+                        Engine.GameScene.PauseGame();
+                        Engine.NotificationManager.Notify(
+                            'Electric Tower max recursion exceeded! Please tell koneko! (game paused)',
+                            'danger'
+                        );
+                        return;
+                    }
+                    recursionCount++;
+
+                    Engine.Grid.creeps.forEach((nCreep) => {
                         if (nCreep.id != creep.id) {
                             const x = nCreep.x;
                             const y = nCreep.y;
                             const radius = 1.5 * Engine.GridCellSize;
                             const d = distance(c.x, c.y, x, y);
-                            return d < radius;
+                            if (d < radius) {
+                                if (chainedCreepIds.find((crID) => crID == nCreep.id) != undefined) return;
+                                chainedCreepIds.push(nCreep.id);
+                                new VisualLightning(c, nCreep);
+                                Engine.GameScene.events.emit(
+                                    CreepEvents.TakenDamage,
+                                    nCreep.id,
+                                    Math.round(proj.damage / 2),
+                                    proj.gemResistanceModifications
+                                );
+                                checkNearBy(nCreep);
+                            }
                         }
                     });
-                    nearByCreeps.forEach((nearCreep) => {
-                        if (!chainedCreepIds.find((crID) => crID == nearCreep.id)) chainedCreepIds.push(nearCreep.id);
-                        else return;
-                        checkNearBy(nearCreep);
-                        new VisualLightning(c, nearCreep);
-                        Engine.GameScene.events.emit(
-                            CreepEvents.TakenDamage,
-                            nearCreep.id,
-                            Math.round(proj.damage / 2),
-                            proj.gemResistanceModifications
-                        );
-                    });
                 }
-                checkNearBy(creep);
                 Engine.GameScene.events.emit(
                     CreepEvents.TakenDamage,
                     creep.id,
                     proj.damage,
                     proj.gemResistanceModifications
                 );
+                chainedCreepIds.push(creep.id);
+                checkNearBy(creep);
             };
         }
     }
@@ -197,14 +212,23 @@ export function StrongTowerBehaviour(tower: Tower, elapsedMS: number) {
 
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
-    let creepsInRange = tower.GetCreepsInRange();
-    if (creepsInRange.length > 0) {
-        let focus = creepsInRange[0];
-        if (tower.millisecondsUntilNextShot <= 0) {
+    else {
+        let creepsInRange = tower.GetCreepsInRange();
+        if (creepsInRange.length > 0) {
+            let focus = creepsInRange[0];
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
             tower.millisecondsUntilNextShot = tower.computedCooldown;
-            tower.Shoot(calculateAngleToPoint(x, y, focus.x, focus.y));
+            let proj = tower.Shoot(calculateAngleToPoint(x, y, focus.x, focus.y));
+            proj.onCollide = (creep: Creep, proj: Projectile) => {
+                Engine.GameScene.events.emit(CreepEvents.GiveEffect, creep.id, CreepEffects.MovingBackwards, 750);
+                Engine.GameScene.events.emit(
+                    CreepEvents.TakenDamage,
+                    creep.id,
+                    proj.damage / 2,
+                    proj.gemResistanceModifications
+                );
+            };
         }
     }
 }
@@ -215,13 +239,14 @@ export function RailTowerBehaviour(tower: Tower, elapsedMS: number) {
 
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
-    let creepsInRange = tower.GetCreepsInRange();
-    if (creepsInRange.length > 0) {
-        let focus = creepsInRange[0];
-        if (tower.millisecondsUntilNextShot <= 0) {
+    else {
+        let creepsInRange = tower.GetCreepsInRange();
+        if (creepsInRange.length > 0) {
+            let focus = creepsInRange[0];
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
             tower.millisecondsUntilNextShot = tower.computedCooldown;
+            // Custom logic handled via tower.Shoot
             tower.Shoot(calculateAngleToPoint(x, y, focus.x, focus.y));
         }
     }
@@ -233,6 +258,42 @@ export function TrapperTowerBehaviour(tower: Tower, elapsedMS: number) {
 
     if (tower.millisecondsUntilNextShot > 0)
         tower.millisecondsUntilNextShot -= elapsedMS * Engine.GameScene.gameSpeedMultiplier;
+    else {
+        if (Engine.GameScene.roundMode != RoundMode.Combat) return;
+        let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
+        let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
+        let cells = Engine.Grid.GetPathCellsInRange(tower.row, tower.column, tower.computedRange);
+        if (cells.length > 0) {
+            let idx = Math.floor(Math.random() * cells.length);
+            let cell = cells[idx];
+            let cellx = cell.column * Engine.GridCellSize + Engine.GridCellSize / 2;
+            let celly = cell.row * Engine.GridCellSize + Engine.GridCellSize / 2;
+            let combinedTint = new PIXI.Color('white');
+            if (tower.slottedGems.length > 0) {
+                let color = new PIXI.Color(tower.slottedGems[0].definition.color);
+                for (let i = 1; i < tower.slottedGems.length; i++) {
+                    const element = tower.slottedGems[i];
+                    color.multiply(element.definition.color);
+                }
+                combinedTint = color;
+            }
+            let proj = new TrapProjectile(
+                x,
+                y,
+                tower.definition.projectileTextures,
+                calculateAngleToPoint(x, y, cellx, celly),
+                cellx,
+                celly,
+                tower.computedDamageToDeal,
+                combinedTint,
+                tower.computedTimeToLive,
+                tower.computedPierce,
+                tower.totalGemResistanceModifications
+            );
+            tower.projectiles.push(proj);
+            tower.millisecondsUntilNextShot = tower.computedCooldown;
+        }
+    }
 }
 
 export function DebuffTowerBehaviour(tower: Tower, elapsedMS: number) {
@@ -248,7 +309,16 @@ export function DebuffTowerBehaviour(tower: Tower, elapsedMS: number) {
             let x = tower.column * Engine.GridCellSize + Engine.GridCellSize / 2;
             let y = tower.row * Engine.GridCellSize + Engine.GridCellSize / 2;
             tower.millisecondsUntilNextShot = tower.computedCooldown;
-            tower.Shoot(calculateAngleToPoint(x, y, focus.x, focus.y));
+            let proj = tower.Shoot(calculateAngleToPoint(x, y, focus.x, focus.y));
+            proj.onCollide = (creep: Creep, proj: Projectile) => {
+                Engine.GameScene.events.emit(CreepEvents.GiveEffect, creep.id, CreepEffects.DebuffTowerDebuff, 5000);
+                Engine.GameScene.events.emit(
+                    CreepEvents.TakenDamage,
+                    creep.id,
+                    proj.damage / 1.5,
+                    proj.gemResistanceModifications
+                );
+            };
         }
     }
 }

src/scenes/Game.ts

@@ -20,7 +20,7 @@ import EndGameDialog from '../classes/gui/EndGameDialog';
 import HighScoreDialog, { HighScoreDialogButtons } from '../classes/gui/HighScoreDialog';
 import GamePausedDialog from '../classes/gui/GamePausedDialog';
 
-enum RoundMode {
+export enum RoundMode {
     Purchase = 0,
     Combat = 1,
     Misc = 2,
@@ -167,7 +167,6 @@ export class GameScene extends Scene {
 
         this.ticker.add(() => {
             if (this.update) this.update(this.ticker.elapsedMS);
-            // if (this.isFastForwarded) this.update(this.ticker.elapsedMS);
         });
         this.ticker.start();
     }