CHrome dino

CONTROLS: - Desktop: - SPACE / Up Arrow (keyCode 38): Jump to avoid obstacles - Down Arrow (keyCode 40): Duck to avoid low-flying obstacles - ENTER (keyCode 13): Restart game (after game over) - Mouse Click / Mouse Down: Jump - Mouse Up: End jump / Release duck - Mobile/Tablet: - Touch / Tap: Jump to avoid obstacles - Touch Down: Jump - Touch Up: End jump / Release duck - Touch Screen: Tap anywhere on screen to jump BASIC MECHANICS: 1. Game Start: - Press Space, Up Arrow, or tap to start the game - T-Rex begins running automatically - First jump triggers the intro animation - Game starts after intro completes 2. Running: - T-Rex runs continuously from left to right - Ground scrolls beneath the dinosaur - Running speed increases gradually over time - Maximum speed is capped at 13 units per frame 3. Jumping: - Press Space, Up Arrow, or tap to jump - Jump velocity adjusts based on current speed - Minimum jump height ensures consistent clearance - T-Rex can only jump when on the ground - Release jump key/tap to allow faster fall (speed drop) 4. Ducking: - Hold Down Arrow while on ground to duck - Ducking makes T-Rex shorter (25px height vs 47px) - Required to avoid low-flying pterodactyls - Release Down Arrow to stand back up - Speed drop during jump transitions to duck if Down Arrow is held 5. Obstacles - Cacti: - Small Cacti: 17px width, 35px height, appear on ground - Large Cacti: 25px width, 50px height, appear on ground - Cacti can appear in groups of 1-3 (based on speed) - Must jump over all cacti to avoid collision - Cacti spawn with random gaps between them 6. Obstacles - Pterodactyls: - Flying dinosaurs appear at higher speeds (8.5+) - Variable heights: 100px, 75px, or 50px from ground - Mobile: Appear at 100px or 50px heights - Duck to avoid low-flying pterodactyls - Jump if pterodactyl is flying high enough - Animated with 2 frames, move at slightly different speed 7. Collision Detection: - Collision occurs when T-Rex touches any obstacle - Collision boxes are precise for accurate hit detection - Game immediately ends on collision - Visual and audio feedback on collision 8. Speed Progression: - Initial speed: 6 units per frame - Speed accelerates by 0.001 units per frame - Maximum speed: 13 units per frame - Faster speeds create tighter obstacle spacing - Higher speeds allow multiple cactus groupings 9. Night Mode: - Activates every 700 units of distance - Screen colors invert to night theme - Moon phases change with each night mode - Stars appear in the sky during night mode - Day/night transitions fade smoothly - Night mode duration: 12 seconds (12000ms fade duration) 10. Distance Scoring: - Distance tracked in pixels as you run - Converted to scaled units (0.025 coefficient) - Displayed as 5-digit number (00000 to 99999+) - Achievement sound plays every 100 units - Score flashes on achievement milestones - High score tracked separately and displayed 11. Game Over: - Occurs immediately on collision with obstacle - Game over panel displays on screen - Shows restart button/icon - High score updated if current run is better - 750ms delay before restart can be triggered - Press Enter or click/tap to restart 12. Audio Effects: - Button press sound when jumping/starting - Hit sound when colliding with obstacle - Achievement sound every 100 distance units - Audio context initializes on first interaction - Vibration feedback on mobile devices (200ms) 13. Visual Elements: - Background clouds scroll slowly - Ground line animates continuously - T-Rex animation cycles between frames - Blinking animation when waiting/stopped - Smooth sprite-based graphics - High DPI support for retina displays 14. Game States: - Waiting: T-Rex blinking, game not started - Running: Active gameplay, T-Rex running - Jumping: T-Rex in mid-air - Ducking: T-Rex crouched low - Crashed: Game over state, collision occurred 15. Progressive Difficulty: - Speed increases automatically - Obstacle frequency increases with speed - Multiple obstacles allowed at higher speeds - Pterodactyls only appear after reaching speed 8.5 - Gap spacing adjusts based on current speed - Requires faster reflexes as game progresses STRATEGIC TIPS: - Timing is Everything: Learn the jump timing for different obstacle heights. Jump too early or too late and you'll hit obstacles. - Watch the Patterns: Obstacle patterns repeat. Learn common combinations (single cactus, cactus groups, pterodactyls) to anticipate jumps. - Duck vs Jump: Pterodactyls can fly at multiple heights. Duck for low ones, jump if they're high enough. Learn to identify height quickly. - Speed Awareness: As speed increases, obstacles come faster. Adjust your reaction time accordingly. Expect tighter gaps. - Conservation: Don't jump unnecessarily when no obstacles are present. Unnecessary jumps waste no resources, but keep your reflexes ready. - Ground Contact: Remember you can only jump from the ground. Don't try to jump while already in mid-air. - Obstacle Gaps: Multiple cacti have gaps between them. Learn to time jumps to clear all obstacles in a group with one jump. - Night Mode Preparation: Night mode inverts colors but doesn't change gameplay. Stay focused during transitions. - Score Milestones: Achievement sounds play every 100 units. Use these as progress markers and stay motivated. - High Score Focus: Aim to beat your personal best. Each run teaches you better obstacle recognition and timing. ADVANCED TECHNIQUES: - Optimal Jump Height: Learn the minimum jump height needed for each obstacle. Higher jumps take longer to recover. - Speed Drop Technique: Release jump early to drop faster when needed. Useful for clearing low obstacles quickly. - Duck Timing: Master the precise timing to duck under low pterodactyls without losing speed or hitting ground obstacles. - Pattern Recognition: Memorize common obstacle sequences. This helps predict upcoming challenges and prepare reactions. - Peripheral Vision: Keep attention on the horizon, not just immediately in front. Early obstacle spotting gives more reaction time. - Rhythm Building: Establish a rhythm for jumping. Some players develop muscle memory for common obstacle patterns. - Calm Under Pressure: As speed increases, stay calm. Panic jumps often lead to collisions. Trust your timing. - Multiple Obstacle Management: Learn to handle groups of 2-3 cacti. One well-timed jump can clear multiple obstacles. - Pterodactyl Height Reading: Quickly identify pterodactyl height (100px, 75px, or 50px) to decide jump vs duck strategy. - Endurance Building: Practice extended runs to build stamina. Higher scores come from consistent play over longer periods. WINNING AND PROGRESSION: - Distance Goals: Set personal distance goals. Common milestones: 100, 500, 1000, 5000+ units. - High Score Challenge: Beat your previous high score with each session. Track your improvement over time. - Speed Mastery: Learn to handle maximum speed (13 units). Most players crash before reaching top speed. - Night Mode Survival: Successfully navigate multiple night mode transitions. Each cycle increases difficulty. - Obstacle Mastery: Learn to handle all obstacle types efficiently: single cacti, cactus groups, all pterodactyl heights. - Perfect Timing: Achieve consistent jump timing for different obstacle types. Precision prevents unnecessary crashes. - Pattern Memorization: Memorize common obstacle patterns to anticipate and react faster. - Endurance Records: Build endurance for longer play sessions. High scores require maintaining focus over extended periods. - Reaction Improvement: Improve reaction time through practice. Faster recognition of obstacles leads to better scores. - Personal Bests: Continuously challenge yourself to beat personal records. Each session is an opportunity to improve. Enjoy running through the endless desert as the T-Rex and see how far you can go!