Posted October 29, 201410 yr Hello guys. So for my mod I am making a wand of lightning. I need to find out which block the player is looking at and spawn a lightning bolt there. How would I go and do that? I've seen a good deal about raytracing. But how exactly would you do this? I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
October 29, 201410 yr Author Here is some code I have already got. MovingObjectPosition objectMouseOver = world.rayTraceBlocks(300, 1); //world.func_147447_a(vec3, addedVector, true, true, false); if (objectMouseOver != null && objectMouseOver.typeOfHit == MovingObjectType.BLOCK) { int i = objectMouseOver.blockX; int j = objectMouseOver.blockY; int k = objectMouseOver.blockZ; world.spawnEntityInWorld(new EntityLightningBolt(world, i, j, k)); System.out.println(objectMouseOver.blockX); System.out.println(objectMouseOver.blockY); System.out.println(objectMouseOver.blockZ); The raytrace command above doesn't work. I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
October 29, 201410 yr Take a look at the ray trace method used by tinkerers construct. https://github.com/SlimeKnights/TinkersConstruct/blob/master/src/main/java/tconstruct/library/tools/AbilityHelper.java I am the author of Draconic Evolution
October 29, 201410 yr Author I can not make any sense of his code. I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
October 29, 201410 yr What about it? The code or the trig? Check out my mod, Realms of Chaos, here. If I helped you, be sure to press the "Thank You" button!
October 29, 201410 yr I can not make any sense of his code. Nether could i unfortunately im not very good with math but it works. I am the author of Draconic Evolution
October 29, 201410 yr Author The code. Also, I seem to have something working. public ItemStack onItemRightClick(ItemStack itemStack, World world, EntityPlayer player) { if(!world.isRemote){ Vec3 look = player.getLookVec(); MovingObjectPosition Coord = player.rayTrace(300, 1); if(Coord != null && Coord.typeOfHit == MovingObjectType.BLOCK){ EntityLightningBolt Lightning = new EntityLightningBolt(world, 1, 1, 1); Lightning.setPosition(Coord.blockX,Coord.blockY,Coord.blockZ); world.spawnEntityInWorld(Lightning); } } This works. Only, thing is lightning and fire is invisible. Should I spawn things in on if(world.isremote)? Edit: I just realized I have a vec3 in there for no reason but that shouldnt matter. I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
October 29, 201410 yr You need to use world.addWeatherEffect(entity); not spawnEntityinWorld. I am the author of Draconic Evolution
October 29, 201410 yr Author You need to use world.addWeatherEffect(entity); not spawnEntityinWorld. Sorry, this didn't work either. Any other suggestions? I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
October 29, 201410 yr Author OHHH YEAH!!! :) I got it working!!!! I was actually updating this from 1.6.4 and it was working then. So this is what I did. I took my 1.6.4 code and replace the fuction world.rayTraceBlocks_do_do with world.rayTraceBlocks So heres my final code if anyone wants it. public ItemStack onItemRightClick(ItemStack itemstack, World world, EntityPlayer entityplayer) { float f = 1.0F; float f1 = entityplayer.prevRotationPitch + (entityplayer.rotationPitch - entityplayer.prevRotationPitch) * f; float f2 = entityplayer.prevRotationYaw + (entityplayer.rotationYaw - entityplayer.prevRotationYaw) * f; double d = entityplayer.prevPosX + (entityplayer.posX - entityplayer.prevPosX) * (double)f; double d1 = (entityplayer.prevPosY + (entityplayer.posY - entityplayer.prevPosY) * (double)f + 1.6200000000000001D) - (double)entityplayer.yOffset; double d2 = entityplayer.prevPosZ + (entityplayer.posZ - entityplayer.prevPosZ) * (double)f; Vec3 vec3d = Vec3.createVectorHelper(d, d1, d2); float f3 = MathHelper.cos(-f2 * 0.01745329F - 3.141593F); float f4 = MathHelper.sin(-f2 * 0.01745329F - 3.141593F); float f5 = -MathHelper.cos(-f1 * 0.01745329F); float f6 = MathHelper.sin(-f1 * 0.01745329F); float f7 = f4 * f5; float f8 = f6; float f9 = f3 * f5; double d3 = 5000D; Vec3 vec3d1 = vec3d.addVector((double)f7 * d3, (double)f8 * d3, (double)f9 * d3); MovingObjectPosition movingobjectposition = world.rayTraceBlocks_do_do(vec3d, vec3d1, false, true); if (movingobjectposition == null) { return itemstack; } if (movingobjectposition.typeOfHit == EnumMovingObjectType.TILE) { int i = movingobjectposition.blockX; int j = movingobjectposition.blockY; int k = movingobjectposition.blockZ; world.spawnEntityInWorld(new EntityLightningBolt(world, i, j, k)); } return itemstack; } I'm back from being gone for... I think its been about a year. I'm pretty sure nobody remembers me, but hello anybody who does!
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.