Casting a Firebolt

This tutorial seeks to teach the very basics of casting a projectile. While the firebolt is chosen for this tutorial, the knowledge here is applicable to any projectile or probe-based effect glyph.

This is at its core a problem of providing the firebolt glyph to its requisite species. The firebolt wants a capsum that provides, starting from the head, a power level, a direction vector and an origin vector. The setup of the firebolt is thus geared towards providing these.

This spell allows the caster to create a firebolt that appears roughly at their chest, flies to where they are looking and deals 5 damage.

1) Pushes the caster as a species onto the capsum and uses that species to return an origin point at the caster’s chest (so as to not blind the caster).

2) Pushes the caster as a species onto the capsum and uses that species to return the caster's look vector.

3) Pushes the number 5 onto the capsum.

4) The capsum: origin, direction, 5, where 5 is at the head, allows for the firebolt to cast successfully.