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Tank Trouble Laser Pointer

Adds a laser pointer showing shot trajectories in Tank Trouble!

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greatest.deepsurf.us/scripts/530735/1559176/Tank%20Trouble%20Laser%20Pointer.js 

// ==UserScript==
// @name         Tank Trouble Laser Pointer
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Adds a laser pointer showing shot trajectories in Tank Trouble!
// @author       You
// @match        https://tanktrouble.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Wait for game to load
    function waitForGame() {
        return new Promise(resolve => {
            const check = setInterval(() => {
                if (typeof window.game !== 'undefined') {
                    clearInterval(check);
                    resolve();
                }
            }, 100);
        });
    }

    // Helper functions
    function getTankPosition() {
        return {
            x: window.game.tank.x,
            y: window.game.tank.y,
            direction: window.game.tank.direction
        };
    }

    function calculateTrajectory(startX, startY, direction) {
        const trajectory = [];
        const speed = 500; // Bullet speed
        let x = startX;
        let y = startY;
        let vx = Math.cos(direction) * speed;
        let vy = Math.sin(direction) * speed;

        // Calculate trajectory points
        while (x >= 0 && x <= window.game.canvas.width &&
               y >= 0 && y <= window.game.canvas.height) {
            trajectory.push({x, y});

            // Check for wall collisions
            const wall = checkWallCollision(x, y);
            if (wall) {
                // Calculate reflection
                if (wall.horizontal) {
                    vy = -vy * 0.8; // Energy loss on bounce
                } else {
                    vx = -vx * 0.8;
                }
            }

            x += vx * 0.016; // Update position
            y += vy * 0.016;
        }

        return trajectory;
    }

    function checkWallCollision(x, y) {
        // Check walls (simplified collision detection)
        const padding = 20;
        if (x <= padding) return { horizontal: false, vertical: true };
        if (x >= window.game.canvas.width - padding) return { horizontal: false, vertical: true };
        if (y <= padding) return { horizontal: true, vertical: false };
        if (y >= window.game.canvas.height - padding) return { horizontal: true, vertical: false };
        return null;
    }

    // Main enhancement function
    async function enhanceGame() {
        await waitForGame();

        // Store original draw function
        const originalDraw = window.game.draw;

        // Override draw function with enhanced visibility
        window.game.draw = function() {
            originalDraw.call(window.game);

            // Draw laser pointer with enhanced visibility
            const ctx = window.game.canvas.getContext('2d');
            const tank = getTankPosition();
            const trajectory = calculateTrajectory(tank.x, tank.y, tank.direction);

            // Draw trajectory with multiple styles for better visibility
            ctx.beginPath();
            ctx.moveTo(tank.x, tank.y);
            trajectory.forEach(point => {
                ctx.lineTo(point.x, point.y);
            });

            // Draw with glow effect
            ctx.shadowBlur = 10;
            ctx.shadowColor = 'rgba(255, 0, 0, 0.8)';
            ctx.strokeStyle = 'rgba(255, 0, 0, 0.8)';
            ctx.lineWidth = 3;
            ctx.stroke();

            // Draw with solid line
            ctx.shadowBlur = 0;
            ctx.strokeStyle = 'rgba(255, 255, 255, 0.8)';
            ctx.lineWidth = 2;
            ctx.stroke();

            // Draw starting point
            ctx.beginPath();
            ctx.arc(tank.x, tank.y, 5, 0, Math.PI * 2);
            ctx.fillStyle = 'rgba(255, 0, 0, 0.8)';
            ctx.fill();
        };
    }

    // Start enhancements when page loads
    enhanceGame();
})();