Initial Speed based on distance ?

Nawrot · December 30, 2023, 7:47am

Code is simple, and you have all explanations in post from week ago.

this one:

Nawrot:

Oh i made that project because it was easier than explaining it all.

What all blueprints are for:

My_GameMode - this is only to set up pawn properly

My_HUD - hmm, this does nothing, i wanted to spawn hud there, but i did it in pawn

My_Pawn - this is just camera, and spawning HUD

Now two important ones (that do something):

MY_UMG_Widget - this is that ui box in lower left corner, it has two text entry boxes where you can put angle and speed, when you press enter it finds MY_PlottingActor, and tells it speed or angle was changed

My_PlottingActor - this is where most of stuff happens

Now about My_PlottingActor:

it has event_fire, this is what makes dots

first it removes old dots/mesh components

then it updates time (time+delta_time)

then it calculates VX and VY increments from formula for bullet without air drag

last it spawns all dots/meshes

Spawning meshes:

you have dot_mesh variable - set your mesh there

and Mesh_Inst_Material - set material INSTANCE there to make colors etc.

Materials:

MyRedMaterial - this is base material to create instanced material from

My_Material_Inst - this is instance you can edit color and glow/emmisive strength of it.

To make rest (like cannon) or just throwing stuff use My_PlottingActor as base.