Tweak gravity and jumping

client/entity/entity.ts

@@ -25,7 +25,11 @@ export abstract class Entity {
 	width: number;
 	height: number;
 	eye_height: number;
-	gravity = -15.8;
+	// blocks per second squared
+	gravity = -32;
+	// what's left of its speed after each tick in the air, like minecraft's 0.98. it caps falling speed
+	// at 49 * -gravity * TICK_DELTA, 78 blocks per second with minecraft's gravity
+	drag = 0.98;
 
 	// which way it hit something on each axis in the last move: 1 or -1, 0 for nothing.
 	// 1 on y means it's standing on something
@@ -70,11 +74,14 @@ export abstract class Entity {
 	// one step of the game, TICK_DELTA seconds
 	abstract tick(): void;
 
-	// falls and moves by its velocity for one tick, see move_body
+	// falls and moves by its velocity for one tick (see move_body), then slows down from drag
 	move() {
 		const collisions = move_body(this, this.gravity, (x, y, z) => this.level.has_collision(x, y, z));
 		this.colliding_x = collisions.x;
 		this.colliding_y = collisions.y;
 		this.colliding_z = collisions.z;
+		this.vx *= this.drag;
+		this.vy *= this.drag;
+		this.vz *= this.drag;
 	}
 }

client/entity/local_player.ts

@@ -12,7 +12,8 @@ export class LocalPlayer extends Player {
 	inventories = new ClientInventories();
 
 	move_speed = 4;
-	jump_force = 6.7;
+	// blocks per second, peaks about 1.25 blocks up with the entity's gravity and drag
+	jump_force = 9.23;
 
 	#ticks_since_sent = 0;