| 1 | function demo() { |
| 2 | |
| 3 | cam ( 90, 20, 100 ); |
| 4 | |
| 5 | world = new OIMO.World({ |
| 6 | timestep: 1/60, |
| 7 | iterations: 8, |
| 8 | broadphase: 2, // 1: brute force, 2: sweep & prune, 3: volume tree |
| 9 | worldscale: 1, |
| 10 | random: true, |
| 11 | info:true // display statistique |
| 12 | }); |
| 13 | |
| 14 | var i, x, y, z, s, b; |
| 15 | |
| 16 | var mx = 150; |
| 17 | var r = 50; |
| 18 | var a = (360/mx) * Math.torad; |
| 19 | var spring = [2, 0.3];// soften the joint ex: 100, 0.2 |
| 20 | |
| 21 | for( i = 0; i < mx; i++){ |
| 22 | |
| 23 | x = Math.sin(i*a) * r; |
| 24 | y = 60 + Math.sin(i*0.5) * 2; |
| 25 | z = Math.cos(i*a) * r; |
| 26 | |
| 27 | add({ type:'sphere', size:[1], pos:[x, y, z], move:1 }); |
| 28 | |
| 29 | if( i > 0 ) world.add({ type:'jointHinge', body1:(i-1), body2:i, pos1:[0,-1,0], pos2:[0,1,0], collision:true, spring:spring }); |
| 30 | if( i === mx-1 ) world.add({ type:'jointHinge', body1:mx-1, body2:0, pos1:[0,-1,0], pos2:[0,1,0], collision:true, spring:spring }); |
| 31 | |
| 32 | } |
| 33 | |
| 34 | var ground = world.add({size:[1000, 10, 1000], pos:[0,-5,0], density:1 }); |
| 35 | |
| 36 | |
| 37 | |
| 38 | for( i = 0; i<40; i++ ){ |
| 39 | x = rand(-50, 50); |
| 40 | z = rand(-50, 50); |
| 41 | s = rand(5, 15); |
| 42 | add({ type:'box', geometry:geo.dice, size:[s,s,s], pos:[x,s*0.5,z], move:true }); |
| 43 | } |
| 44 | |
| 45 | // world internal loop |
| 46 | |
| 47 | world.postLoop = postLoop; |
| 48 | world.play(); |
| 49 | |
| 50 | }; |
| 51 | |
| 52 | function postLoop () { |
| 53 | |