Smash the DummyAI · Claude 3.5

Core Game Loop and Mechanics

Smash the Dummy is a 3D casual physics game centered around satisfying, humorous destruction. The core loop is simple and immediately gratifying:

1. Observe - Player sees a ragdoll dummy in a scenario with interactive objects (drill, car, explosives, etc.)
2. Interact - Player drags the dummy or objects using touch/mouse to set up the destruction
3. Watch - Physics simulation plays out with exaggerated, cartoonish results
4. Complete - Level ends when the dummy is "eliminated" (health reaches zero or specific condition met)
5. Progress - Player moves to the next level with a new destruction scenario

What Makes It Compelling:

• Instant gratification from physics interactions
• Curiosity about what absurd scenario comes next
• Stress relief through consequence-free destruction
• Humor from exaggerated ragdoll reactions
• Simple controls make it accessible to everyone

Win Condition: Successfully eliminate the dummy in each level Lose Condition: None - players can experiment freely until they succeed

Starting Scope

For the first iteration, we'll implement a highly polished, minimal viable experience that demonstrates the core appeal:

Implement Now:

• One complete level: The Drill scenario (as shown in reference image)
• Full 3D ragdoll physics with articulated joints (head, torso, upper arms, lower arms, upper legs, lower legs)
• Drag-and-drop interaction for both dummy and the drill
• Basic health system that depletes when drill contacts dummy
• Simple particle effects for impact/destruction
• Level complete screen with "Next Level" button (that restarts the same level for now)
• Smooth camera positioning to frame the action
• Touch and mouse controls

Add Later (Future Iterations):

• Additional levels (car traffic, explosives, etc.)
• Level selection menu
• More complex environmental interactions
• Sound effects and background music
• More elaborate particle systems
• Slow-motion replay feature
• Different dummy skins/customization

Game Perspective

3D Third-Person Fixed Camera

The game uses a 3D perspective with a fixed camera angle that frames each level like a diorama. The camera is positioned to:

• Show the entire scene clearly (dummy and interactive objects)
• Provide depth perception for 3D physics
• Maintain a slightly elevated angle (30-45 degrees) looking down at the scene
• Stay static during gameplay (no camera controls needed)

This perspective allows players to:

• Clearly see the ragdoll's physics reactions in 3D space
• Easily target objects for dragging
• Appreciate the spatial relationships between objects
• Enjoy the cartoonish destruction from an optimal viewing angle

Game World and Level Design

Level 1: The Drill

Environment:

• Simple ground plane (light blue-gray concrete texture)
• Minimal background (soft gradient sky, light blue to white)
• Clean, uncluttered space focusing attention on the dummy and drill

Layout:

• Ragdoll dummy lying flat on the ground in the center-bottom of the scene
• Yellow power drill suspended above the dummy (approximately 2-3 dummy-heights up)
• Drill is initially held by an invisible force (or simple rope/chain visual)
• Ground has a subtle shadow beneath the dummy

Interactive Elements:

• Ragdoll Dummy: Can be dragged by any body part; all joints react with physics
• Power Drill: Can be dragged downward toward the dummy; has a spinning drill bit that deals damage on contact

Physics Setup:

• Dummy has realistic weight and joint constraints
• Drill has significant mass and momentum when dropped
• Contact between drill bit and dummy triggers:
  • Health depletion
  • Ragdoll reaction (limbs flail, body recoils)
  • Particle effects (small debris/sparks)
  • Drill continues through if momentum is sufficient

Win Condition:

• Dummy's health reaches zero (achieved by sustained drill contact)
• Victory screen appears with "Level Complete!" message

Spatial Dimensions:

• Ground plane: ~10x10 units
• Dummy: ~1.5 units tall when standing
• Drill: ~0.8 units long
• Initial drill height: ~4 units above ground

Edit Mode Design

For the starting scope, edit mode will be minimal to keep focus on gameplay polish:

Editable Properties:

• Dummy Color: RGB color picker to change the dummy's body color (default: yellow/tan)
• Drill Color: RGB color picker to change the drill's body color (default: yellow)
• Gravity Strength: Slider (0.5x to 2x normal gravity) to make physics faster or floatier
• Drill Damage: Slider (0.5x to 2x) to adjust how quickly the drill eliminates the dummy

Edit Mode UI:

• Simple panel on the right side with labeled controls
• "Reset Level" button to return to starting positions
• "Play Mode" button to exit edit mode

Constraints:

• Colors limited to reasonable ranges (no pure black/white to maintain visibility)
• Gravity can't be zero or negative (would break gameplay)
• Drill damage can't be zero (would make level unwinnable)

Future Edit Mode Features (not in starting scope):

• Position adjustment for dummy and drill
• Additional interactive objects
• Custom level creation

Control Design

3D Third-Person Fixed Camera Controls

This is a casual 3D game with a fixed camera, so controls are minimal and focused on drag-and-drop interaction.

Mobile (Touch):

• Tap and Hold on dummy or drill to grab it
• Drag finger to move the grabbed object in 3D space
  • Horizontal movement: moves object left/right and forward/back (parallel to ground plane)
  • Vertical movement: moves object up/down
  • Movement is constrained to feel natural (dummy can't fly off screen, drill can only move downward)
• Release to drop the object and let physics take over
• Tap empty space: no action (prevents accidental interactions)

Desktop (Mouse):

• Click and Hold on dummy or drill to grab it
• Drag mouse to move the grabbed object in 3D space
  • Same movement constraints as touch
  • Mouse position maps to 3D world position using raycasting
• Release mouse button to drop the object
• Click empty space: no action

Interaction Details:

• Objects highlight slightly when hovered/touched (subtle glow or outline)
• Grabbed objects follow cursor/finger smoothly with slight lag for natural feel
• Physics are temporarily disabled on grabbed objects (re-enabled on release)
• Drill can only be moved downward (Y-axis constraint) to prevent players from moving it away
• Dummy can be moved freely within reasonable bounds

No Complex Controls Needed:

• No camera controls (fixed camera)
• No keyboard input required
• No virtual joysticks
• No multiple simultaneous touches needed

Input State Management:

• Track single touch/mouse interaction at a time
• Clear input state on window blur
• Prevent default browser behaviors for touch events

Art Style and Visual Theme

Cartoonish Low-Poly 3D Style

The game uses a clean, colorful, low-poly 3D aesthetic that emphasizes humor over realism:

Visual Style:

• Low-poly models with smooth shading (not flat-shaded)
• Bright, saturated colors (yellows, blues, oranges)
• Minimal textures - mostly solid colors with subtle gradients
• Simple lighting - single directional light with soft shadows
• Clean, uncluttered - focus on the action, minimal background detail

Color Palette:

• Dummy: Warm yellow/tan (#F4C542) with darker brown joints (#8B4513)
• Drill: Bright yellow body (#FFD700), black/dark gray handle (#2C2C2C), metallic drill bit (#C0C0C0)
• Ground: Light blue-gray (#B0C4DE)
• Sky: Soft gradient from light blue (#87CEEB) to white (#FFFFFF)
• Effects: Bright orange/yellow sparks (#FF6B35, #FFC300)

Asset Approach:

• Ragdoll Dummy: Generated 3D model asset (low-poly humanoid with visible joints)
• Power Drill: Generated 3D model asset (stylized power tool)
• Ground & Sky: Rendered with code (simple plane and gradient background)
• Particles: Rendered with code (simple geometric shapes)

Consistency:

• All 3D models share the same low-poly, smooth-shaded style
• Consistent lighting angle across all assets (top-down, slightly angled)
• Same level of detail/polygon count across models
• Unified color saturation and brightness

Technical Considerations:

• Models should be optimized for web (low polygon count: 500-2000 triangles per model)
• Transparent backgrounds for model renders
• Consistent scale (dummy ~1.5 units tall)
• Clear silhouettes for easy recognition