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Overview

The MyConstant class contains static constants that define fundamental game parameters such as maze dimensions, character sizes, and debug visualization flags. These constants are used throughout the game to ensure consistent sizing and behavior.

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Constants

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Maze Dimensions

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MAZE_WIDTH
number
default:"30"
The width of the maze grid in tiles. Defines how many columns the maze contains.
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MAZE_HEIGHT
number
default:"30"
The height of the maze grid in tiles. Defines how many rows the maze contains.

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Size Parameters

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BOX_SIZE
number
default:"2"
The size of each maze tile in 3D units. This is the base unit for all spatial calculations in the game.
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CHARACTER_SIZE
number
default:"(BOX_SIZE/2) * 0.9"
The size of game characters (Pac-Man and ghosts). Calculated as 90% of half a box size to ensure characters fit within tiles with some padding.

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Debug Flags

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SHOW_HITBOX
boolean
default:"false"
When enabled, displays visual hitboxes around characters for debugging collision detection.
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SHOW_MAZE_HITBOX
boolean
default:"true"
When enabled, displays hitbox visualization for maze walls and obstacles.
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SHOW_PATH
boolean
default:"false"
When enabled, visualizes the pathfinding routes used by ghost AI to chase Pac-Man.
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ACTIVE_SHADER
boolean
default:"true"
Enables or disables shader effects in the game.

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Usage Examples

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Creating the Maze

// Initialize maze with configured box size
this.maze = new MyMaze(MyConstant.BOX_SIZE);

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Positioning Characters

// Create Pac-Man with character size from constants
var pacman = new MyPacman(
  this.charactersSpawnPosition[0], 
  MyConstant.CHARACTER_SIZE, 
  pacmanDir
);

// Position model based on grid coordinates
this.model.position.set(
  pos.x * MyConstant.BOX_SIZE, 
  pos.y * MyConstant.BOX_SIZE, 
  pos.z * MyConstant.BOX_SIZE
);

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Converting Between Grid and World Coordinates

// Convert world position to grid coordinates
let pos = new THREE.Vector2(
  this.characters[0].getPosition().x / MyConstant.BOX_SIZE, 
  this.characters[0].getPosition().z / MyConstant.BOX_SIZE
);

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Camera Positioning

// Position top-down camera centered on maze
this.topCam.position.set(
  MyConstant.MAZE_WIDTH/2 * MyConstant.BOX_SIZE, 
  78, 
  MyConstant.MAZE_HEIGHT/2 * MyConstant.BOX_SIZE
);

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Debug Visualization

// Conditionally show pathfinding visualization
if(MyConstant.SHOW_PATH){
  // Draw ghost path to Pac-Man
  this.maze.showPath(path);
}

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Source Location

File: ~/workspace/source/pacman/src/MyConstant.js:1
  • MyMaze - Uses constants for maze generation
  • MyCharacter - Uses size and hitbox constants
  • MyGame - Uses all constants for game initialization

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