ishanmanchanda/boids

An implementation of Craig Reynold's Boids in p5.js, with lots of new features.

boids's Issues

Add some method to set initial simulation variables; sliders?

Boids/src/sketch.js

Lines 146 to 151 in 4f4174a

	// TODO: Add some method to set initial simulation variables; sliders?
	}
	function simulationScreen() {
	populateGrid();

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This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.

Random left-right motion

Boids show a rapid left-right movement when pursued by a predator.

Allow dropping of Boids/Predators/Obstacles

Add thirst mechanism

Mechanics

• Water body
• Constantly reducing water level
• Force attracting towards water body
• Death if unable to reach in time
• Change in water utilization depending on speed

Factors

• Water reservoir capacity
• Rate of drinking
• Rate of utilization

Allow toggling forces

Keyboard / GUI toggles for separation, cohesion, and so on.

Fix screen ratio checks with browser-related height reduction

Boids/src/sketch.js

Lines 17 to 22 in 4f4174a

	// TODO: Fix screen ratio checks with browser-related height reduction
	if (Math.abs(r - (16 / 9)) < 0.01) {
	ratio = 16;
	} else if (Math.abs(r - (8 / 5)) < 0.01) {
	ratio = 8;
	} else if (Math.abs(r - (4 / 3)) < 0.01) {

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This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.

Bin-Lattice Spatial Subdivision

• Divide the area into a grid of cells.
• Iterate over all creatures in each cell instead of all creatures overall.
• (For each cell, check the 8 neighboring cells?)

Balance Forces

Balance all forces to ensure optimum behavior.

For example, separation force should absolutely prevent boids from overlapping.

GUI to determine inital settings

https://github.com/bitcraftlab/p5.gui

Add Boid hunger mechanism

Mechanics

• Forest
• Constantly reducing energy level
• Force attracting towards forest
• Death if unable to reach in time
• Change in energy depletion depending on speed
• Voluntary rest to recharge

Factors

• Food capacity
• Rate of eating
• Rate of utilization
• Boost when resting
• Energy / food

The whole thing crashes when a lot of predators is present and I add boid

Uncaught TypeError: Cannot read property 'position' of undefined
at interaction (utils.js:49)
at draw (sketch.js:30)
at m.i.redraw (p5.min.js:3)
at m. (p5.min.js:3)

I tried to figure out why, but I'm new to javascript and p5js so I could not :(

Show "Incorrect screen orientation" message

Boids/src/sketch.js

Lines 164 to 169 in 4f4174a

	// TODO: Show "Incorrect screen orientation" message
	}
	function ratioErrorScreen() {
	// TODO: Show "Unsupported screen ratio" message
	}

---

This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.

Show "Unsupported screen ratio" message

Boids/src/sketch.js

Lines 168 to 173 in 4f4174a

	// TODO: Show "Unsupported screen ratio" message
	}
	function draw() {
	background(0);
	handleState();

---

This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.

Update boid and predator positions

Boids/src/sketch.js

Lines 97 to 102 in 4f4174a

	// TODO: Update boid and predator positions
	// REVIEW: Does the spatial grid need to be updated?
	}
	function simulate() {
	// Micro optimization: Check flag only once instead of for each creature

---

This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.

Show "Screen too small" message

Boids/src/sketch.js

Lines 160 to 165 in 4f4174a

	// TODO: Show "Screen too small" message
	}
	function orientationErrorScreen() {
	// TODO: Show "Incorrect screen orientation" message
	}

---

This issue was generated by todo based on a TODO comment in 4f4174a when #10 was merged. cc @IshanManchanda.