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jstanks: add TANK_FRICTION constant

This commit is contained in:
Alyssa Milburn 2014-07-29 17:13:41 +02:00
parent eebcd66f2e
commit 39fb04bc9b
1 changed files with 2 additions and 1 deletions
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3
jstanks.js
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@ -55,6 +55,7 @@ var TANK_CANNON_RANGE = (TANK_SENSOR_RANGE / 2);
var TANK_MAX_ACCEL = 35; var TANK_MAX_ACCEL = 35;
var TANK_MAX_TURRET_ROT = (TAU/8); var TANK_MAX_TURRET_ROT = (TAU/8);
var TANK_TOP_SPEED = 7; var TANK_TOP_SPEED = 7;
var TANK_FRICTION = 0.75;
/* (tank radius + tank radius)^2 */ /* (tank radius + tank radius)^2 */
var TANK_COLLISION_ADJ2 = ((TANK_RADIUS + TANK_RADIUS) * (TANK_RADIUS + TANK_RADIUS)); var TANK_COLLISION_ADJ2 = ((TANK_RADIUS + TANK_RADIUS) * (TANK_RADIUS + TANK_RADIUS));
@ -367,7 +368,7 @@ ForfTank.prototype.move = function() {
to be a penalty for having the treads go in opposite directions. to be a penalty for having the treads go in opposite directions.
This probably plays hell with precisely-planned tanks, which I This probably plays hell with precisely-planned tanks, which I
find very ha ha. */ find very ha ha. */
var friction = .75 * (Math.abs(this.speed.current[0] - this.speed.current[1]) / 200); var friction = TANK_FRICTION * (Math.abs(this.speed.current[0] - this.speed.current[1]) / 200);
var v = [0, 0]; var v = [0, 0];
v[0] = this.speed.current[0] * (1 - friction) * (TANK_TOP_SPEED / 100.0); v[0] = this.speed.current[0] * (1 - friction) * (TANK_TOP_SPEED / 100.0);
v[1] = this.speed.current[1] * (1 - friction) * (TANK_TOP_SPEED / 100.0); v[1] = this.speed.current[1] * (1 - friction) * (TANK_TOP_SPEED / 100.0);