Computer-readable storage media, game system, and game processing method

A game system comprising:

• one or more processors;
• and
• one or more memories storing instructions to perform operations comprising:
• updating voxel data defined in a virtual space based on game processing, wherein, for each of a plurality of voxels, at least a density indicating the degree of virtual occupation of a content in a space defined by the voxel is set in the voxel data;
• updating a collision mesh related to the voxel data, wherein vertex coordinates of the collision mesh are determined based on at least the density included in the voxel data;
• and
• in the game processing,
• in a first case in which a player character is sitting on at least the collision mesh, performing movement control of the player character at a position on the collision mesh based on an operation input,
• in a second case in which the player character is not sitting on at least the collision mesh, causing the player character to fall, and
• when a first portion satisfying a first condition that the collision mesh is not present in a distance downward from a height defined with reference to a height of the player character in a range in a movement direction of the player character is determined, imposing a first limitation on the movement control of the player character.

A game processing method, comprising:

• updating voxel data defined in a virtual space based on game processing, wherein, for each of a plurality of voxels, at least a density indicating the degree of virtual occupation of a content in a space defined by the voxel is set in the voxel data;
• updating a collision mesh related to the voxel data, wherein vertex coordinates of the collision mesh are determined based on at least the density included in the voxel data;
• and
• in the game processing,
• in a first case in which a player character is sitting on at least the collision mesh, performing movement control of the player character at a position on the collision mesh based on an operation input,
• in a second case in which the player character is not sitting on at least the collision mesh, causing the player character to fall, and
• when a first portion satisfying a first condition that the collision mesh is not present in a distance downward from a height defined with reference to a height of the player character in a range in a movement direction of the player character is determined, imposing a first limitation on the movement control of the player character.