boosting

2 files changed, 58 insertions, 39 deletions

diff --git a/test-client/main.ts b/test-client/main.ts
index 42c1a3e0..831513fc 100644
--- a/test-client/main.ts
+++ b/test-client/main.ts
@@ -17,7 +17,7 @@
 */
 /// <reference lib="dom" />
 
-import { player_movement_update } from "./movement.ts";
+import { MovementBase, update_movement } from "./movement.ts";
 import { Gamedata, ItemIndex, Message, PacketC, PacketS, PlayerID, TileIndex } from "./protocol.ts";
 import { V2, add_v2, lerp_exp_v2_mut, normalize, lerp_exp, sub_v2, length } from "./util.ts";
 import { draw_ingame, draw_wait } from "./visual.ts";
@@ -62,18 +62,14 @@ export interface ItemData {
     progress_warn?: boolean
     remove_anim?: number
 }
-export interface PlayerData {
-    x: number,
-    y: number,
+export interface PlayerData extends MovementBase {
     name: string,
-    rot: number,
     item?: ItemData,
-    facing: V2,
     character: number,
     anim_position: V2,
-    vel: V2,
     message?: MessageData,
 }
+
 export interface TileData {
     x: number
     y: number
@@ -112,14 +108,18 @@ function packet(p: PacketC) {
             break;
         case "add_player": {
             players.set(p.id, {
-                x: p.position[0],
-                y: p.position[1],
+                position: {
+                    x: p.position[0],
+                    y: p.position[1],
+                },
                 character: p.character,
                 name: p.name,
                 rot: 0,
                 anim_position: { x: 0, y: 1 },
                 facing: { x: 0, y: 1 },
                 vel: { x: 0, y: 0 },
+                stamina: 0,
+                boosting: false,
             })
             break;
         }
@@ -129,10 +129,10 @@ function packet(p: PacketC) {
         case "position": {
             const pl = players.get(p.player)!
             const pos = { x: p.pos[0], y: p.pos[1] }
-            const dist = length(sub_v2(pl, pos));
+            const dist = length(sub_v2(pl.position, pos));
             if (p.player == my_id && dist < 3) return; // we know better where we are
-            pl.x = pos.x
-            pl.y = pos.y
+            pl.position.x = pos.x
+            pl.position.y = pos.y
             pl.rot = p.rot
             break;
         }
@@ -140,7 +140,7 @@ function packet(p: PacketC) {
             const player = players.get(p.player)!
             const tile = tiles.get(p.tile.toString())!
             player.item = tile.item;
-            player.item!.tracking = player
+            player.item!.tracking = player.position
             tile.item = undefined
             break;
         }
@@ -163,7 +163,7 @@ function packet(p: PacketC) {
             const player = players.get(p.player)!
             if (player.item !== undefined && player.item !== null) items_removed.add(player.item)
             player.item = undefined
-            if (p.item !== undefined && p.item !== null) player.item = { kind: p.item, x: player.x + 0.5, y: player.y + 0.5 }
+            if (p.item !== undefined && p.item !== null) player.item = { kind: p.item, x: player.position.x + 0.5, y: player.position.y + 0.5 }
             break;
         }
         case "set_active": {
@@ -234,8 +234,8 @@ export function get_interact_target(): V2 | undefined {
     const me = players.get(my_id)
     if (!me) return
     return {
-        x: Math.floor(me.x + Math.sin(me.rot)),
-        y: Math.floor(me.y + Math.cos(me.rot))
+        x: Math.floor(me.position.x + Math.sin(me.rot)),
+        y: Math.floor(me.position.y + Math.cos(me.rot))
     }
 }
 
@@ -248,7 +248,7 @@ function set_interact(edge: boolean) {
 function tick_update() {
     const p = players.get(my_id)
     if (!p) return
-    send({ type: "position", pos: [p.x, p.y], rot: p.rot })
+    send({ type: "position", pos: [p.position.x, p.position.y], rot: p.rot })
 }
 
 function frame_update(dt: number) {
@@ -260,14 +260,14 @@ function frame_update(dt: number) {
         y: (+keys_down.has("KeyS") - +keys_down.has("KeyW"))
     })
     if (interacting) input.x *= 0, input.y *= 0
-    player_movement_update(p, dt, input)
+    update_movement(p, dt, input, keys_down.has("KeyN"))
 
     const update_item = (item: ItemData) => {
         if (item.tracking) lerp_exp_v2_mut(item, item.tracking, dt * 10.)
     }
     for (const [pid, player] of players) {
-        if (pid == my_id) player.anim_position.x = player.x, player.anim_position.y = player.y
-        else lerp_exp_v2_mut(player.anim_position, player, dt * 15)
+        if (pid == my_id) player.anim_position.x = player.position.x, player.anim_position.y = player.position.y
+        else lerp_exp_v2_mut(player.anim_position, player.position, dt * 15)
         if (player.item !== undefined && player.item !== null) update_item(player.item)
         if (player.message) player.message.anim_size = lerp_exp(player.message.anim_size, 1, dt * 3)
     }
@@ -284,7 +284,7 @@ function frame_update(dt: number) {
     }
     remove.forEach(i => items_removed.delete(i))
 
-    lerp_exp_v2_mut(camera, p, dt * 10.)
+    lerp_exp_v2_mut(camera, p.position, dt * 10.)
 
     const it = get_interact_target() ?? { x: 0, y: 0 };
     const possible = data.tile_interact[tiles.get([it.x, it.y].toString())?.kind ?? 0] ?? false
diff --git a/test-client/movement.ts b/test-client/movement.ts
index 38f4b47b..933b6af5 100644
--- a/test-client/movement.ts
+++ b/test-client/movement.ts
@@ -16,43 +16,62 @@
     
 */
 import { data } from "./main.ts";
-import { tiles, players, PlayerData } from "./main.ts";
+import { tiles, players } from "./main.ts";
 import { V2, normalize, length, sub_v2, lerp_exp_v2_mut } from "./util.ts";
 
-export const PLAYER_SIZE = 0.4;
-export const PLAYER_SPEED = 65;
+export const PLAYER_SIZE = 0.4
+export const PLAYER_FRICTION = 10
+export const PLAYER_SPEED = 40
+export const BOOST_FACTOR = 3
+export const BOOST_DURATION = 0.3
+export const BOOST_RESTORE = 0.5
 
-export function player_movement_update(p: PlayerData, dt: number, input: V2) {
+export interface MovementBase {
+    position: V2,
+    vel: V2,
+    facing: V2,
+    rot: number,
+    boosting: boolean,
+    stamina: number
+}
+
+export function update_movement(p: MovementBase, dt: number, input: V2, boost: boolean) {
     if (length(input) > 0.1) lerp_exp_v2_mut(p.facing, input, dt * 10.)
     p.rot = Math.atan2(p.facing.x, p.facing.y)
-    p.vel.x += input.x * dt * PLAYER_SPEED
-    p.vel.y += input.y * dt * PLAYER_SPEED
-    p.x += p.vel.x * dt
-    p.y += p.vel.y * dt
+    boost &&= length(input) > 0.1
+    p.boosting = boost && (p.boosting || p.stamina >= 1) && p.stamina > 0
+    if (p.boosting) p.stamina -= dt / BOOST_DURATION
+    else p.stamina += dt / BOOST_RESTORE
+    p.stamina = Math.max(Math.min(p.stamina, 1), 0)
+    const speed = PLAYER_SPEED * (p.boosting ? BOOST_FACTOR : 1)
+    p.vel.x += input.x * dt * speed
+    p.vel.y += input.y * dt * speed
+    p.position.x += p.vel.x * dt
+    p.position.y += p.vel.y * dt
     collide_player(p, dt)
-    lerp_exp_v2_mut(p.vel, { x: 0, y: 0 }, dt * 15.)
+    lerp_exp_v2_mut(p.vel, { x: 0, y: 0 }, dt * PLAYER_FRICTION)
 }
 
-function collide_player(p: PlayerData, dt: number) {
+function collide_player(p: MovementBase, dt: number) {
     for (let xo = -1; xo <= 1; xo++) {
         for (let yo = -1; yo <= 1; yo++) {
-            const x = Math.floor(p.x) + xo
-            const y = Math.floor(p.y) + yo
+            const x = Math.floor(p.position.x) + xo
+            const y = Math.floor(p.position.y) + yo
 
             const tile = tiles.get([x, y].toString())
             if (tile && !data.tile_collide[tile.kind]) continue
 
-            const d = aabb_point_distance(x, y, x + 1, y + 1, p.x, p.y)
+            const d = aabb_point_distance(x, y, x + 1, y + 1, p.position.x, p.position.y)
             if (d > PLAYER_SIZE) continue
 
             const h = 0.01
-            const d_sample_x = aabb_point_distance(x, y, x + 1, y + 1, p.x + h, p.y)
-            const d_sample_y = aabb_point_distance(x, y, x + 1, y + 1, p.x, p.y + h)
+            const d_sample_x = aabb_point_distance(x, y, x + 1, y + 1, p.position.x + h, p.position.y)
+            const d_sample_y = aabb_point_distance(x, y, x + 1, y + 1, p.position.x, p.position.y + h)
             const grad_x = (d_sample_x - d) / h
             const grad_y = (d_sample_y - d) / h
 
-            p.x += (PLAYER_SIZE - d) * grad_x
-            p.y += (PLAYER_SIZE - d) * grad_y
+            p.position.x += (PLAYER_SIZE - d) * grad_x
+            p.position.y += (PLAYER_SIZE - d) * grad_y
 
             const vdotn = (grad_x * p.vel.x) + (grad_y * p.vel.y)
             p.vel.x -= grad_x * vdotn
@@ -61,7 +80,7 @@ function collide_player(p: PlayerData, dt: number) {
     }
 
     for (const [_, player] of players) {
-        const diff = sub_v2(p, player)
+        const diff = sub_v2(p.position, player.position)
         const d = length(diff)
         if (d < 0.01) continue
         if (d >= PLAYER_SIZE * 2) continue