The character is unable to ascend the staircase

Currently, I am working on a project that involves getting a player to move around a 3D house environment. While I have successfully loaded the house using obj and mtl loaders, as well as implemented player controls for moving forward and backward, I am encountering an issue with the player's movement on stairs. The player is unable to navigate up or down the stairs in the house. In my code, I have utilized point_lock_controls and raycaster for this functionality. If anyone can provide insight into where I may have gone wrong, it would be greatly appreciated.

controls = new THREE.PointerLockControls( camera );
                scene.add( controls.getObject() );

// Event listeners for key presses
var onKeyDown = function ( event ) { 
    // Handle key-down events 
};

var onKeyUp = function ( event ) {
    // Handle key-up events 
};

document.addEventListener( 'keydown', onKeyDown, false );
document.addEventListener( 'keyup', onKeyUp, false );

raycaster = new THREE.Raycaster( new THREE.Vector3(), new THREE.Vector3( 0, -1, 0 ), 0, 10 );

// Animation loop
function animate() {
    requestAnimationFrame( animate );
    
    // Update player movement based on controls
}

I looked into using the FPS example provided at this link, which uses a JSON loader. Since I am using OBJ and MTL loaders, I attempted to modify the code to suit my needs. However, I have run into issues where the player model falls through the floor and an error message "THREE.Object3D.add: object not an instance of THREE.Object3D" is displayed. Any assistance in rectifying this code reference error would be highly valued.

My specific query pertains to how I can incorporate OBJ and MTL loaders into the aforementioned example to load my custom model while enabling player movement. The following code snippet showcases the modifications I made to integrate these loaders:

// Function to create platform with custom model
function makePlatform() {
    // Code for loading and positioning the custom model 
}

// Additional setup for renderer, camera, lighting, etc.

Answer №1

Walking up stairs presents a unique challenge compared to walking on flat ground due to the varying step levels.

To smoothly detect changes in ground height, consider using a navigation mesh instead of traditional stairs.

Source:

In addition, understanding physics concepts is crucial for detecting collisions with walls and other obstacles. Utilize tools like cannon.js or ammo.js.

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