diff options
| -rw-r--r-- | src/index.js | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/index.js b/src/index.js index b6f6e0b..71554ce 100644 --- a/src/index.js +++ b/src/index.js @@ -6,8 +6,9 @@ const LINEAR_DAMPING = 0.5; const OBJ_BASE_RADIUS = 30; const OBJ_BASE_SIZE = { x: OBJ_BASE_RADIUS * 2, y: OBJ_BASE_RADIUS * 2 }; const OBJ_MASS = 100; -const SCORE_DECAY_RATE = 5; -const SCORE_DECAY_THRESHOLD = 150; +const SCORE_DECAY_CURVE_L = 1000; +const SCORE_DECAY_CURVE_K = 0.01; +const SCORE_DECAY_CURVE_X0 = 1000; const SCORE_INCREMENT = 150; const STEP_MS = 33; const TARGET_WIDTH_FACTOR = 0.05; @@ -80,14 +81,18 @@ RAPIER.init().then(() => { lastCollision = { handle1: handle1, handle2: handle2 }; }); - const now = performance.now(); - if (now - lastScoredAt > SCORE_DECAY_THRESHOLD) { - score -= SCORE_DECAY_RATE; + const score_gap = performance.now() - lastScoredAt; + const score_decay_coefficient = + SCORE_DECAY_CURVE_L - + SCORE_DECAY_CURVE_L / + (1 + Math.exp(-SCORE_DECAY_CURVE_K * (score - SCORE_DECAY_CURVE_X0))); + if (score_gap > score_decay_coefficient) { + score -= Math.max(Math.log(score), 1); score = Math.max(score, 0); } - scoreElement.textContent = `${score}`; - highScoreElement.textContent = `${highScore}`; + scoreElement.textContent = `${Math.round(score)}`; + highScoreElement.textContent = `${Math.round(highScore)}`; const objPosition = obj.translation(); objElement.style.left = `${objPosition.x}px`; |