BBCBasic

BBC BASIC is the programming language originally specified and adopted by the British Broadcasting Corporation for its groundbreaking Computer Literacy Project of the early 1980s. This is an advanced, cross-platform, implementation with many enhancements over early versions. As well as extensions to the language it supports anti-aliased 2D graphics, 3D graphics, shader programming and includes a 2D physics engine. Its multimedia capabilities include stereo music, sound effects and video. It supports networking and the accelerometer. Nevertheless it maintains a high degree of compatibility with the BBC Microcomputer, including SOUND, ENVELOPE and MODE 7.
For full details and user manual visit https://www.bbcbasic.co.uk/bbcsdl/