alien-rush/src/support/towerManager.js

import { TOWERS_CONFIG } from './towerConfig.js';

export class TowerManager {

    constructor(scene) {
        this.scene = scene;
        this.lastFired = {}; // Track last fire time for each tower
    }

    createTower(type, x, y) {
        const posX = this.scene.gridToLocation(x);
        const posY = this.scene.gridToLocation(y);

        const tower = this.scene.add.image(posX, posY, 'josh');
        tower.props = {
            'type': type,
            'level': 1
        }
        this.scene.towers.add(tower);

        // Draw range circle
        const config = TOWERS_CONFIG[type].level1;
        if (config) {
            const range = config.range;
            const circle = this.scene.add.circle(posX, posY, range, 0x00ff00, 0.2);
        }
    }

    update(time, delta) {
        // Iterate through all towers
        this.scene.towers.children.iterate((tower) => {
            const towerX = tower.x;
            const towerY = tower.y;
            
            // Get tower config
            const type = tower.props.type;
            const level = 'level'+tower.props.level;
            const config = TOWERS_CONFIG[type][level];
            
            if (!config) return;

            const range = config.range;
            const rate = config.rate;
            
            // Check if enough time has passed since last fire
            if (this.lastFired[tower.id] === undefined || 
                time - this.lastFired[tower.id] >= rate) {
                
                // Check for enemies in range
                let inRange = false;
                this.scene.enemies.children.iterate((enemy) => {
                    const distanceTraveled = enemy.props.distanceTraveled;
                    const distance = Phaser.Math.Distance.Between(
                        towerX, towerY,
                        enemy.x, enemy.y
                    );
                    
                    if (distance <= range) {
                        inRange = true;
                        this.attackTarget(tower, enemy);
                        return false; // Stop iterating once we find one enemy
                    }
                });
                
                // Fire if enemies are in range
                if (inRange) {
                    console.log('fire');
                    this.lastFired[tower.id] = time;
                }
            }
        });
    }

    attackTarget(tower, enemy) {
        // Tower Properties
        const type = tower.props.type;
        const level = 'level'+tower.props.level;
        const config = TOWERS_CONFIG[type][level];
        
        if (!config) return;

        const dmgLow = config.dmgLow;
        const dmgHigh = config.dmgHigh;

        // Enemy Information
        const fullHealth = enemy.props.fullHealth;
        const currentHealth = enemy.props.health;
        
        // Calculate damage (random between low and high)
        const damage = Phaser.Math.Between(dmgLow, dmgHigh);
        
        // Apply damage to enemy
        enemy.props.health -= damage;
        
        // Create or update health bar
        if (!enemy.healthBar) {
            this.createHealthBar(enemy);
        }
        
        // Update health bar display
        this.updateHealthBar(enemy);
        
        // Check if enemy should be destroyed
        if (enemy.props.health <= 0) {
            this.destroyEnemy(enemy);
        }
    }

    createHealthBar(enemy) {
        const barWidth = 30;
        const barHeight = 5;
        const barX = enemy.x - barWidth/2;
        const barY = enemy.y - enemy.displayHeight/2 - 10;
        
        // Create health bar container
        enemy.healthBar = this.scene.add.container(enemy.x, enemy.y - enemy.displayHeight/2 - 10);
        
        // Background bar (gray)
        const background = this.scene.add.rectangle(0, 0, barWidth, barHeight, 0x808080);
        
        // Health fill (green)
        const healthFill = this.scene.add.rectangle(0, 0, barWidth, barHeight, 0x00ff00);
        
        // Position the fill relative to background
        healthFill.x = -barWidth/2 + (barWidth * (enemy.props.health / enemy.props.fullHealth)) / 2;
        
        enemy.healthBar.add([background, healthFill]);
    }

    updateHealthBar(enemy) {
        if (!enemy.healthBar) return;
        
        const barWidth = 30;
        const healthPercentage = enemy.props.health / enemy.props.fullHealth;
        
        // Update the fill width based on current health
        enemy.healthBar.list[1].width = barWidth * healthPercentage;
        
        // Position the container correctly
        enemy.healthBar.x = enemy.x;
        enemy.healthBar.y = enemy.y - enemy.displayHeight/2 - 10;
    }

    destroyEnemy(enemy) {
        // Remove health bar if exists
        if (enemy.healthBar) {
            enemy.healthBar.destroy();
        }
        
        // Destroy the enemy sprite
        enemy.destroy();
    }

}