Genre: Platformer

Expert blueprint for platformers emphasizing movement feel, level design, and player satisfaction.

NEVER Do

• NEVER skip coyote time — Without 6-frame grace period after leaving ledge, jumps feel unresponsive. Players blame themselves.
• NEVER ignore jump buffering — Pressing jump 6 frames before landing should queue jump. Missing this makes controls feel sluggish.
• NEVER use fixed jump height — Variable jump (hold longer = jump higher) gives players agency. Tap for short hop, hold for full jump.
• NEVER forget camera smoothing — Instant camera snapping causes motion sickness. Use position_smoothing or lerp for smooth follow.
• NEVER skip squash/stretch on landing — Landing without visual impact feels weightless. Add 0.1s squash on land for juice.

Available Scripts

MANDATORY: Read the appropriate script before implementing the corresponding pattern.

advanced_platformer_controller.gd

Complete platformer with coyote time, jump buffer, apex float, and variable gravity. Move_toward-based friction for polished game feel.

Core Loop

Jump → Navigate Obstacles → Reach Goal → Next Level

Skill Chain

godot-project-foundations, godot-characterbody-2d, godot-input-handling, animation, sound-manager, tilemap-setup, camera-2d

Movement Feel ("Game Feel")

The most critical aspect of platformers. Players should feel precise, responsive, and in control.

Input Responsiveness

# Instant direction changes - no acceleration on ground
func _physics_process(delta: float) -> void:
    var input_dir := Input.get_axis("move_left", "move_right")
    
    # Ground movement: instant response
    if is_on_floor():
        velocity.x = input_dir * MOVE_SPEED
    else:
        # Air movement: slightly reduced control
        velocity.x = move_toward(velocity.x, input_dir * MOVE_SPEED, AIR_ACCEL * delta)

Coyote Time (Grace Period)

Allow jumping briefly after leaving a platform:

var coyote_timer: float = 0.0
const COYOTE_TIME := 0.1  # 100ms grace period

func _physics_process(delta: float) -> void:
    if is_on_floor():
        coyote_timer = COYOTE_TIME
    else:
        coyote_timer = max(0, coyote_timer - delta)
    
    # Can jump if on floor OR within coyote time
    if Input.is_action_just_pressed("jump") and coyote_timer > 0:
        velocity.y = JUMP_VELOCITY
        coyote_timer = 0

Jump Buffering

Register jumps pressed slightly before landing:

var jump_buffer: float = 0.0
const JUMP_BUFFER_TIME := 0.15

func _physics_process(delta: float) -> void:
    if Input.is_action_just_pressed("jump"):
        jump_buffer = JUMP_BUFFER_TIME
    else:
        jump_buffer = max(0, jump_buffer - delta)
    
    if is_on_floor() and jump_buffer > 0:
        velocity.y = JUMP_VELOCITY
        jump_buffer = 0

Variable Jump Height

const JUMP_VELOCITY := -400.0
const JUMP_RELEASE_MULTIPLIER := 0.5

func _physics_process(delta: float) -> void:
    # Cut jump short when button released
    if Input.is_action_just_released("jump") and velocity.y < 0:
        velocity.y *= JUMP_RELEASE_MULTIPLIER

Gravity Tuning

const GRAVITY := 980.0
const FALL_GRAVITY_MULTIPLIER := 1.5  # Faster falls feel better
const MAX_FALL_SPEED := 600.0

func apply_gravity(delta: float) -> void:
    var grav := GRAVITY
    if velocity.y > 0:  # Falling
        grav *= FALL_GRAVITY_MULTIPLIER
    velocity.y = min(velocity.y + grav * delta, MAX_FALL_SPEED)

Level Design Principles

The "Teaching Trilogy"

1. Introduction: Safe environment to learn mechanic
2. Challenge: Apply mechanic with moderate risk
3. Twist: Combine with other mechanics or time pressure

Visual Language

• Safe platforms: Distinct color/texture
• Hazards: Red/orange tints, spikes, glow effects
• Collectibles: Bright, animated, particle effects
• Secrets: Subtle environmental hints

Flow and Pacing

Easy → Easy → Medium → CHECKPOINT → Medium → Hard → CHECKPOINT → Boss

Camera Design

# Look-ahead camera for platformers
extends Camera2D

@export var look_ahead_distance := 100.0
@export var look_ahead_speed := 3.0

var target_offset := Vector2.ZERO

func _process(delta: float) -> void:
    var player_velocity: Vector2 = target.velocity
    var desired_offset := player_velocity.normalized() * look_ahead_distance
    target_offset = target_offset.lerp(desired_offset, look_ahead_speed * delta)
    offset = target_offset

Platformer Sub-Genres

Precision Platformers (Celeste, Super Meat Boy)

• Instant respawn on death
• Very tight controls (no acceleration)
• Checkpoints every few seconds of gameplay
• Death is learning, not punishment

Collectathon (Mario 64, Banjo-Kazooie)

• Large hub worlds with objectives
• Multiple abilities unlocked over time
• Backtracking encouraged
• Stars/collectibles as progression gates

Puzzle Platformers (Limbo, Inside)

• Slow, deliberate pacing
• Environmental puzzles
• Physics-based mechanics
• Atmospheric storytelling

Metroidvania (Hollow Knight)

• See godot-genre-metroidvania skill
• Ability-gated exploration
• Interconnected world map

Common Pitfalls

Polish Checklist

• Dust godot-particles on land/run
• Screen shake on heavy landings
• Squash/stretch animations
• Sound effects for every action (jump, land, wall-slide)
• Death and respawn animations
• Checkpoint visual/audio feedback
• Accessible difficulty options (assist mode)

Godot-Specific Tips

1. CharacterBody2D vs RigidBody2D: Always use CharacterBody2D for platformer characters - precise control is essential
2. Physics tick rate: Consider 120Hz physics for smoother movement
3. One-way platforms: Use set_collision_mask_value() or dedicated collision layers
4. Wall detection: Use is_on_wall() and get_wall_normal() for wall jumps

Example Games for Reference

• Celeste - Perfect game feel, assist mode accessibility
• Hollow Knight - Combat + platforming integration
• Super Mario Bros. Wonder - Visual polish and surprises
• Shovel Knight - Retro mechanics with modern feel

Reference

• Master Skill: godot-master