rvishwajith

limitSpeed(Boid b)
    Double maxMag = 0.033 // note this is a double, not a vector
    IF magnitude(b.velocity) > maxMag
        b.velocity = (b.velocity / magnitude(b.velocity)) * maxMag

rvishwajith

Boids[] // this is a global vairable accesible in other methods
Update()
    FOR b in Boids
        vector1 = rule1(b) // Boids flock to the center of mass
        vector2 = rule2(b) // Boids avoid other boids
        vector3 = rule3(b) // Boids try to match the speed of other boids
        // additional rules can be added directly after
        vector4 = rule4(b)
        vectorX = ruleX(b)
        // limiting speed after all changes to velocity

rvishwajith

Boids[] // this is a global vairable accesible in other methods
Update()
    FOR b in Boids
        vector1 = rule1(b) // Boids flock to the center of mass
        vector2 = rule2(b) // Boids avoid other boids
        vector3 = rule3(b) // Boids try to match the speed of other boids
        // additional rules can be added directly after
        vector4 = rule4(b)
        vectorX = ruleX(b)
        // limiting speed after all changes to velocity

rvishwajith

rule2(Boid b)
    distance = 100 // Threshold of distance between boids
    result = <0, 0, 0>
    FOR b2 in Boids
        IF b != b2 // Ignore duplicate boids
            IF dist(b.position, b2.position) < distance
                result -= (b2.position - b.position)
    RETURN result

rvishwajith

rule1(Boid b)
    Vector pC = <0, 0, 0> // Number of dimensions can change
    FOR b2 in Boids
        IF b != b2 // Ignore duplicate boids
            pC += b2.position
    pC = pC / (Boids.length - 1)
    result = (pC - b.position) / 200 // 0.5% towards the percieved center
    RETURN result

rvishwajith

centerOfMass() // A general rule for finding the overall center
    Vector result
    FOR b in Boids
        result += b.position
    result /= Boids.length
    RETURN result

rvishwajith

Boids[] // this is a global variable accesible in other methods
Update()
    FOR b in Boids
        vector1 = rule1(b) // Boids flock to the center of mass
        vector2 = rule2(b) // Boids avoid other boids
        vector3 = rule3(b) // Boids try to match the speed of other boids
        // additional rules can be added directly after
        vector4 = rule4(b)
        vectorX = ruleX(b)
        finalVector = vector1 + vector2 + vector3 ... + vectorX