COZY COZY WORLD

I am an ordinary Japanese salaryman in his 50's.
The posts are mostly about my attempts at programming which I have taken up recently to maintain logical thinking.
And a bit about my travels around the country.

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Box2D-Lite Walkthrough in Javascript: Generating Contact Points

cedarcantab

Aug 30, 20221 min read

Box2D-Lite Walkthrough in Javascript: Generating Contact Points

Contact Points using Clipping Method All my Box2D-Lite posts have been transferred to my new blog site: Introduction Different Spaces and...

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Understanding 2D Physics Engines with Phaser 3, Part 19: Clipping Method

cedarcantab

Jul 1, 202210 min read

Understanding 2D Physics Engines with Phaser 3, Part 19: Clipping Method

Finding Contact Points of overlapping Convex Polygons using the Clipping Method The separating axis theorem can tell us whether a polygon...

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Understanding 2D Physics Engines with Phaser 3, Part 18: Collision Response with Rotation

cedarcantab

Jun 30, 20226 min read

Understanding 2D Physics Engines with Phaser 3, Part 18: Collision Response with Rotation

Rectange to Rectangle Collision Response with Rotation In a prior post we looked at how to identify the contact point of two colliding...

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Understanding 2D Physics Engines with Phaser 3, Part 17.1: Collision Response with Rotation

cedarcantab

Jun 19, 20223 min read

Understanding 2D Physics Engines with Phaser 3, Part 17.1: Collision Response with Rotation

Capsule to Capsule Collision response with Rotation Having dealt with the concepts of center of mass and mass moment of inertia, we...

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cedarcantab

Jun 12, 20226 min read

2D Raycasting using Phaser 3, Part 4

Exploring the Geom.Intersects.GetLineToPolygon method In my exploration of 2D raycasting using Phaser 3, I created simple 2D raycasters...

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Sloped Tile Collision Detection in Phaser 3

cedarcantab

May 28, 20228 min read

Sloped Tile Collision Detection in Phaser 3

Making Characters Climb Sloped Tiles After a long and tortuous journey I finally managed to get CozyPhysics engine to work with partial...

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Understanding 2D Physics Engines with Phaser 3, Part 15: SAT - Line vs Circle vs Polygon vs Capsule

cedarcantab

May 15, 20222 min read

Understanding 2D Physics Engines with Phaser 3, Part 15: SAT - Line vs Circle vs Polygon vs Capsule

In previous posts I have dealt with checking for collisions of the following combinations: polygon vs polygon polygon vs line segment...

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Understanding 2D Physics Engines with Phaser 3, Part 14: SAT - Capsule vs Capsule

cedarcantab

May 8, 20223 min read

Understanding 2D Physics Engines with Phaser 3, Part 14: SAT - Capsule vs Capsule

We saw in the previous post that we can use the separating axis theorem to detect collisions between a polygon and circle, the point...

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Understanding 2D Physics Engines with Phaser 3, Part 12: SAT - Polygon vs Line Collision Detection

cedarcantab

Mar 26, 20221 min read

Understanding 2D Physics Engines with Phaser 3, Part 12: SAT - Polygon vs Line Collision Detection

This post will be short. It is about using the separating axis theorem (SAT) to detect collision between polygon and line segments. Just...

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Understanding 2D Physics Engines with Phaser 3, Part 11.1: SAT - Convex Polygon Collision Detection

cedarcantab

Mar 23, 20226 min read

Understanding 2D Physics Engines with Phaser 3, Part 11.1: SAT - Convex Polygon Collision Detection

Collision Detection between Polygons with Separating Axis Theorem Phaser provides methods to detect overlap / collision between triangles...

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Understanding 2D Physics Engines with Phaser 3, Part 9: Capsule to Capsule Collision and Resolution

cedarcantab

Mar 21, 20225 min read

Understanding 2D Physics Engines with Phaser 3, Part 9: Capsule to Capsule Collision and Resolution

Capsules Phaser 3's default arcade physics engine handles physics bodies as either rectangles (AABB only) or circles. It appears that in...

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Physics Simulation in Javascript: Circle to Circle Collision Resolution

cedarcantab

Feb 9, 20224 min read

Physics Simulation in Javascript: Circle to Circle Collision Resolution

Resolution of collisions between two circles In the previous post we discussed how to assess whether two circles are colliding, or...

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COZY COZY WORLD

Box2D-Lite Walkthrough in Javascript: Generating Contact Points

Understanding 2D Physics Engines with Phaser 3, Part 19: Clipping Method

Understanding 2D Physics Engines with Phaser 3, Part 18: Collision Response with Rotation

Understanding 2D Physics Engines with Phaser 3, Part 17.1: Collision Response with Rotation

2D Raycasting using Phaser 3, Part 4

Sloped Tile Collision Detection in Phaser 3

Understanding 2D Physics Engines with Phaser 3, Part 15: SAT - Line vs Circle vs Polygon vs Capsule

Understanding 2D Physics Engines with Phaser 3, Part 14: SAT - Capsule vs Capsule

Understanding 2D Physics Engines with Phaser 3, Part 12: SAT - Polygon vs Line Collision Detection

Understanding 2D Physics Engines with Phaser 3, Part 11.1: SAT - Convex Polygon Collision Detection

Understanding 2D Physics Engines with Phaser 3, Part 9: Capsule to Capsule Collision and Resolution

Physics Simulation in Javascript: Circle to Circle Collision Resolution

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