Aligning entity to another entity?
Blitz3D Forums/Blitz3D Programming/Aligning entity to another entity?
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| I've never understood how to align and entity to another entity; plain and simple. It's stupidly embarrassing for me to admit -_- Can someone show me how something like that would work? Think how Mario 'aligns' to a planet in Mario Galaxy, for the sake of envisioning, of course. Literally any sort of help is appreciated. |
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Aligning something to an arbitrary surface like in Mario Galaxy: You can use something like this: http://blitzbasic.com/Community/posts.php?topic=98358#1148708 (and post #15 has the code for that). EDIT: Actually, if you're talking about a spherical surface like in Mario Galaxy you can optimize that by using directly AlignToVector with the vector from the planet's center to the player. vecX = Player.x - PlanetCenter.x vecY = Player.y - PlanetCenter.y vecZ = Player.z - PlanetCenter.z AlignToVector(Player, vecX, vecY, vecZ, 2) But most likely in your situation it's a surface other than spherical. |
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| I was thinking more of having the player face whatever surface he's touching. I overcomplicated my situation a bit. |
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| Facing the surface is possible, it depends on which of the three axes you submit to AlignToVector with the 'Axis' parameter. |
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| Well your mesh probably have normals calculated, and normals are facing outward from surface. If you want mesh to walk on surface, just align it to surface Normal. |
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| I've tried doing all of those things, but it either comes out with the player spazing out crazily in random directions, or zero changes at all. I'm gave the player a linepick and aligned him with PickedNX,NY,NZ on his Y-axis, but I just can't get it working. I declared the targeted surface's entitytype to comply with polygons, so I'm totally lost now. Stupid question with an obvious answer: am I doing something wrong? |
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How are you doing the linepick? Is the ray pointing straight down or is it orientated to match the players current y-axis alignment ... like so ....Tformnormal 0,1,0,PlayerEntity, 0 Dx# = tformedx() * 50.0 Dy# = tformedy() * 50.0 Dz# = tformedz() * 50.0 Picked = Linepick( entityx( playerentity), entityy( playerentity ), entityz( playerentity) , -Dx#, -Dy#, -Dz# ) If Picked > 0 Aligntovector Playerentity, PickedNx(), PickedNy(), PickedNz(), 2, .1 |
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| I was trying to make it so that the ray can reach the targeted surface all around. I'm trying to make it so that the player climb a surface of any shape, like the viney bricks of a round castle pillar. In order to do that, I need the player to always face frontwards the surface he is contacted with, so he can climb it from all round. |
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