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feat: game/engine split refactor + skybox

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This commit is contained in:
Dan Finch 2026-08-08 14:15:32 +02:00
parent 581e5892b0
commit eeedcb8e48
34 changed files with 610 additions and 218 deletions
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57
engine/scene/mobs/Frog.ts
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@ -1,57 +0,0 @@
import { Terrain } from "../Terrain"
import type { Mesh } from "../Mesh"
import type { Mob } from "../Mob"
import type { Entity } from "../Actor"
import { ellipsoid, nextRand, wanderHeading } from "./mobkit"
// Everything about the frog: squat, ground-bound, sits then springs a ballistic hop.
const LEASH = 5
const REST_MIN = 0.7
const REST_SPAN = 1.8
const HOP_SPEED = 1.6
const HOP_IMPULSE = 3.2
const GRAVITY = 14
function build(mesh: Mesh): void {
// Wide squat body, two eye bumps on the top-front, two hind haunches. UVs:
// the frog texture is green skin on the left, a dark eye tone on the right.
ellipsoid(mesh, 0, 0.26, 0, 0.5, 0.28, 0.52, 6, 4, 0, 0.68, 0, 1)
ellipsoid(mesh, 0.24, 0.5, 0.26, 0.13, 0.13, 0.13, 4, 3, 0.75, 0.98, 0, 1)
ellipsoid(mesh, -0.24, 0.5, 0.26, 0.13, 0.13, 0.13, 4, 3, 0.75, 0.98, 0, 1)
ellipsoid(mesh, 0.3, 0.2, -0.26, 0.2, 0.2, 0.26, 4, 3, 0, 0.68, 0, 1)
ellipsoid(mesh, -0.3, 0.2, -0.26, 0.2, 0.2, 0.26, 4, 3, 0, 0.68, 0, 1)
}
function update(mob: Mob, dt: number, terrain: Terrain): void {
if (mob.grounded) {
mob.timer -= dt
mob.position.y = Terrain.height(terrain, mob.position.x, mob.position.z)
if (mob.timer > 0) {
return
}
// Launch a hop: pick a heading (pulled homeward past the leash), then convert
// it into a forward+upward ballistic velocity.
mob.heading = wanderHeading(mob, LEASH, 0.9)
mob.vx = Math.sin(mob.heading) * HOP_SPEED
mob.vz = Math.cos(mob.heading) * HOP_SPEED
mob.vy = HOP_IMPULSE
mob.grounded = false
return
}
mob.vy -= GRAVITY * dt
mob.position.x += mob.vx * dt
mob.position.y += mob.vy * dt
mob.position.z += mob.vz * dt
const ground = Terrain.height(terrain, mob.position.x, mob.position.z)
if (mob.position.y <= ground && mob.vy < 0) {
mob.position.y = ground
mob.vx = 0
mob.vy = 0
mob.vz = 0
mob.grounded = true
mob.timer = REST_MIN + nextRand(mob) * REST_SPAN
}
}
export const frog: Entity<Mob, Terrain> = { name: "frog", build, update, boundingRadius: 0.7, bodyHeight: 0.6 }