mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-21 04:41:52 +02:00
411 lines
14 KiB
Plaintext
411 lines
14 KiB
Plaintext
function __3dTerrain() : __3dObject() constructor {
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VB = [ noone ];
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VF = global.VF_POS_NORM_TEX_COL;
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render_type = pr_trianglelist;
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smooth = false;
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self.subdivision = 4;
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heights = array_create((subdivision + 1) * (subdivision + 1));
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static initModel = function() {
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var _hs = 1 / 2;
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var _vt = array_create(3 * 2 * subdivision * subdivision);
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var _in = 0;
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var amo_ch = (subdivision + 1) * (subdivision + 1);
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var hs = array_length(heights) == amo_ch;
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var st = 1 / subdivision;
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var st2 = st * 2;
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if(!hs) {
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for( var i = 0; i < subdivision; i++ )
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for( var j = 0; j < subdivision; j++ ) {
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var u0 = i * st;
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var u1 = u0 + st;
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var v0 = j * st;
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var v1 = v0 + st;
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var x0 = u0 - 0.5;
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var x1 = u1 - 0.5;
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var y0 = v0 - 0.5;
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var y1 = v1 - 0.5;
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_vt[_in + 0] = new __vertex(x0, y0, 0).setNormal(0., 0., 1.).setUV(u0, v0);
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_vt[_in + 1] = new __vertex(x1, y1, 0).setNormal(0., 0., 1.).setUV(u1, v1);
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_vt[_in + 2] = new __vertex(x1, y0, 0).setNormal(0., 0., 1.).setUV(u1, v0);
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_vt[_in + 3] = new __vertex(x0, y0, 0).setNormal(0., 0., 1.).setUV(u0, v0);
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_vt[_in + 4] = new __vertex(x0, y1, 0).setNormal(0., 0., 1.).setUV(u0, v1);
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_vt[_in + 5] = new __vertex(x1, y1, 0).setNormal(0., 0., 1.).setUV(u1, v1);
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_in += 6;
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}
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} else {
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for( var i = 0; i < subdivision; i++ )
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for( var j = 0; j < subdivision; j++ ) {
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var u0 = i * st;
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var u1 = u0 + st;
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var v0 = j * st;
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var v1 = v0 + st;
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var x0 = u0 - 0.5;
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var x1 = u1 - 0.5;
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var y0 = v0 - 0.5;
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var y1 = v1 - 0.5;
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var _h0 = heights[ j * (subdivision + 1) + i ];
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var _h1 = heights[ j * (subdivision + 1) + i + 1];
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var _h2 = heights[(j + 1) * (subdivision + 1) + i ];
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var _h3 = heights[(j + 1) * (subdivision + 1) + i + 1];
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if(smooth) {
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var _h4 = heights[clamp(j , 0, subdivision) * (subdivision + 1) + clamp(i - 1, 0, subdivision)];
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var _h5 = heights[clamp(j - 1, 0, subdivision) * (subdivision + 1) + clamp(i , 0, subdivision)];
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var _h6 = heights[clamp(j - 1, 0, subdivision) * (subdivision + 1) + clamp(i + 1, 0, subdivision)];
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var _h7 = heights[clamp(j , 0, subdivision) * (subdivision + 1) + clamp(i + 2, 0, subdivision)];
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var _h8 = heights[clamp(j + 1, 0, subdivision) * (subdivision + 1) + clamp(i + 2, 0, subdivision)];
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var _h9 = heights[clamp(j + 2, 0, subdivision) * (subdivision + 1) + clamp(i + 1, 0, subdivision)];
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var _h10 = heights[clamp(j + 2, 0, subdivision) * (subdivision + 1) + clamp(i , 0, subdivision)];
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var _h11 = heights[clamp(j + 1, 0, subdivision) * (subdivision + 1) + clamp(i - 1, 0, subdivision)];
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h1 - _h4;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h2 - _h5;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n0x = _cx / len;
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var _n0y = _cy / len;
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var _n0z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h7 - _h0;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h3 - _h6;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n1x = _cx / len;
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var _n1y = _cy / len;
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var _n1z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h3 - _h11;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h10 - _h0;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n2x = _cx / len;
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var _n2y = _cy / len;
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var _n2z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h8 - _h2;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h9 - _h1;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n3x = _cx / len;
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var _n3y = _cy / len;
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var _n3z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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_vt[_in + 0] = new __vertex(x0, y0, _h0).setNormal(_n0x, _n0y, _n0z).setUV(u0, v0);
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_vt[_in + 1] = new __vertex(x1, y1, _h3).setNormal(_n3x, _n3y, _n3z).setUV(u1, v1);
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_vt[_in + 2] = new __vertex(x1, y0, _h1).setNormal(_n1x, _n1y, _n1z).setUV(u1, v0);
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_vt[_in + 3] = new __vertex(x0, y0, _h0).setNormal(_n0x, _n0y, _n0z).setUV(u0, v0);
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_vt[_in + 4] = new __vertex(x0, y1, _h2).setNormal(_n2x, _n2y, _n2z).setUV(u0, v1);
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_vt[_in + 5] = new __vertex(x1, y1, _h3).setNormal(_n3x, _n3y, _n3z).setUV(u1, v1);
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} else {
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var _nx0 = st;
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var _ny0 = 0;
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var _nz0 = _h1 - _h0;
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var _nx1 = 0;
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var _ny1 = st;
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var _nz1 = _h2 - _h0;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _nx = _cx / len;
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var _ny = _cy / len;
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var _nz = _cz / len;
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_vt[_in + 0] = new __vertex(x0, y0, _h0).setNormal(_nx, _ny, _nz).setUV(u0, v0);
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_vt[_in + 1] = new __vertex(x1, y1, _h3).setNormal(_nx, _ny, _nz).setUV(u1, v1);
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_vt[_in + 2] = new __vertex(x1, y0, _h1).setNormal(_nx, _ny, _nz).setUV(u1, v0);
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_vt[_in + 3] = new __vertex(x0, y0, _h0).setNormal(_nx, _ny, _nz).setUV(u0, v0);
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_vt[_in + 4] = new __vertex(x0, y1, _h2).setNormal(_nx, _ny, _nz).setUV(u0, v1);
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_vt[_in + 5] = new __vertex(x1, y1, _h3).setNormal(_nx, _ny, _nz).setUV(u1, v1);
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}
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_in += 6;
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}
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}
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vertex = [ _vt ];
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VB = build();
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} initModel();
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static updateHeight = function(_h) {
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heights = _h;
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var _in = 0;
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var _vt = vertex[0];
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var sub = subdivision;
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var sub1 = sub + 1;
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var st = 1 / subdivision;
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var st2 = st * 2;
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if(VB[0]) vertex_delete_buffer(VB[0]);
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VB[0] = vertex_create_buffer();
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vertex_begin(VB[0], VF);
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var vb = VB[0];
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var n = 0, i = 0, j = 0;
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if(smooth) {
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repeat( sub * sub ) {
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var _h0 = _h[ j * sub1 + i ];
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var _h1 = _h[ j * sub1 + i + 1];
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var _h2 = _h[(j + 1) * sub1 + i ];
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var _h3 = _h[(j + 1) * sub1 + i + 1];
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var _v0 = _vt[_in + 0];
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var _v1 = _vt[_in + 1];
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var _v2 = _vt[_in + 2];
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var _v3 = _vt[_in + 3];
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var _v4 = _vt[_in + 4];
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var _v5 = _vt[_in + 5];
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var _h4 = _h[ j * sub1 + max(i - 1, 0) ];
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var _h5 = _h[ max(j - 1, 0) * sub1 + i ];
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var _h6 = _h[ max(j - 1, 0) * sub1 + min(i + 1, sub) ];
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var _h7 = _h[ j * sub1 + min(i + 2, sub) ];
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var _h8 = _h[ min(j + 1, sub) * sub1 + min(i + 2, sub) ];
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var _h9 = _h[ min(j + 2, sub) * sub1 + min(i + 1, sub) ];
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var _h10 = _h[ min(j + 2, sub) * sub1 + i ];
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var _h11 = _h[ min(j + 1, sub) * sub1 + max(i - 1, 0) ];
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h1 - _h4;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h2 - _h5;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n0x = _cx / len;
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var _n0y = _cy / len;
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var _n0z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h7 - _h0;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h3 - _h6;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n1x = _cx / len;
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var _n1y = _cy / len;
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var _n1z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h3 - _h11;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h10 - _h0;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n2x = _cx / len;
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var _n2y = _cy / len;
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var _n2z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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var _nx0 = st2, _ny0 = 0, _nz0 = _h8 - _h2;
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var _nx1 = 0, _ny1 = st2, _nz1 = _h9 - _h1;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _n3x = _cx / len;
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var _n3y = _cy / len;
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var _n3z = _cz / len;
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////////////////////////////////////////////////////////////////////////////////
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_v0.z = _h0; _v0.nx = _n0x; _v0.ny = _n0y; _v0.nz = _n0z;
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_v1.z = _h3; _v1.nx = _n3x; _v1.ny = _n3y; _v1.nz = _n3z;
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_v2.z = _h1; _v2.nx = _n1x; _v2.ny = _n1y; _v2.nz = _n1z;
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_v3.z = _h0; _v3.nx = _n0x; _v3.ny = _n0y; _v3.nz = _n0z;
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_v4.z = _h2; _v4.nx = _n2x; _v4.ny = _n2y; _v4.nz = _n2z;
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_v5.z = _h3; _v5.nx = _n3x; _v5.ny = _n3y; _v5.nz = _n3z;
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vertex_position_3d(vb, _v0.x, _v0.y, _v0.z);
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vertex_normal( vb, _v0.nx, _v0.ny, _v0.nz);
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vertex_texcoord( vb, _v0.u, _v0.v);
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vertex_color( vb, _v0.color, _v0.alpha);
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vertex_position_3d(vb, _v1.x, _v1.y, _v1.z);
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vertex_normal( vb, _v1.nx, _v1.ny, _v1.nz);
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vertex_texcoord( vb, _v1.u, _v1.v);
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vertex_color( vb, _v1.color, _v1.alpha);
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vertex_position_3d(vb, _v2.x, _v2.y, _v2.z);
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vertex_normal( vb, _v2.nx, _v2.ny, _v2.nz);
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vertex_texcoord( vb, _v2.u, _v2.v);
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vertex_color( vb, _v2.color, _v2.alpha);
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vertex_position_3d(vb, _v3.x, _v3.y, _v3.z);
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vertex_normal( vb, _v3.nx, _v3.ny, _v3.nz);
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vertex_texcoord( vb, _v3.u, _v3.v);
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vertex_color( vb, _v3.color, _v3.alpha);
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vertex_position_3d(vb, _v4.x, _v4.y, _v4.z);
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vertex_normal( vb, _v4.nx, _v4.ny, _v4.nz);
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vertex_texcoord( vb, _v4.u, _v4.v);
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vertex_color( vb, _v4.color, _v4.alpha);
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vertex_position_3d(vb, _v5.x, _v5.y, _v5.z);
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vertex_normal( vb, _v5.nx, _v5.ny, _v5.nz);
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vertex_texcoord( vb, _v5.u, _v5.v);
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vertex_color( vb, _v5.color, _v5.alpha);
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_in += 6;
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n++;
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i = floor(n / sub);
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j = n % sub;
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}
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} else {
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repeat( sub * sub ) {
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var _h0 = _h[ j * sub1 + i ];
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var _h1 = _h[ j * sub1 + i + 1];
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var _h2 = _h[(j + 1) * sub1 + i ];
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var _h3 = _h[(j + 1) * sub1 + i + 1];
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var _v0 = _vt[_in + 0];
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var _v1 = _vt[_in + 1];
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var _v2 = _vt[_in + 2];
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var _v3 = _vt[_in + 3];
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var _v4 = _vt[_in + 4];
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var _v5 = _vt[_in + 5];
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var _nx0 = st, _ny0 = 0, _nz0 = _h1 - _h0;
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var _nx1 = 0, _ny1 = st, _nz1 = _h2 - _h0;
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var _cx = _ny0 * _nz1 - _nz0 * _ny1;
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var _cy = _nz0 * _nx1 - _nx0 * _nz1;
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var _cz = _nx0 * _ny1 - _ny0 * _nx1;
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var len = sqrt(_cx * _cx + _cy * _cy + _cz * _cz);
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var _nx = _cx / len;
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var _ny = _cy / len;
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var _nz = _cz / len;
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_v0.z = _h0; _v0.nx = _nx; _v0.ny = _ny; _v0.nz = _nz;
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_v1.z = _h3; _v1.nx = _nx; _v1.ny = _ny; _v1.nz = _nz;
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_v2.z = _h1; _v2.nx = _nx; _v2.ny = _ny; _v2.nz = _nz;
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_v3.z = _h0; _v3.nx = _nx; _v3.ny = _ny; _v3.nz = _nz;
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_v4.z = _h2; _v4.nx = _nx; _v4.ny = _ny; _v4.nz = _nz;
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_v5.z = _h3; _v5.nx = _nx; _v5.ny = _ny; _v5.nz = _nz;
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vertex_position_3d(vb, _v0.x, _v0.y, _v0.z);
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vertex_normal( vb, _v0.nx, _v0.ny, _v0.nz);
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vertex_texcoord( vb, _v0.u, _v0.v);
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vertex_color( vb, _v0.color, _v0.alpha);
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vertex_position_3d(vb, _v1.x, _v1.y, _v1.z);
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vertex_normal( vb, _v1.nx, _v1.ny, _v1.nz);
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vertex_texcoord( vb, _v1.u, _v1.v);
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vertex_color( vb, _v1.color, _v1.alpha);
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vertex_position_3d(vb, _v2.x, _v2.y, _v2.z);
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vertex_normal( vb, _v2.nx, _v2.ny, _v2.nz);
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vertex_texcoord( vb, _v2.u, _v2.v);
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vertex_color( vb, _v2.color, _v2.alpha);
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vertex_position_3d(vb, _v3.x, _v3.y, _v3.z);
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vertex_normal( vb, _v3.nx, _v3.ny, _v3.nz);
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vertex_texcoord( vb, _v3.u, _v3.v);
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vertex_color( vb, _v3.color, _v3.alpha);
|
|
|
|
vertex_position_3d(vb, _v4.x, _v4.y, _v4.z);
|
|
vertex_normal( vb, _v4.nx, _v4.ny, _v4.nz);
|
|
vertex_texcoord( vb, _v4.u, _v4.v);
|
|
vertex_color( vb, _v4.color, _v4.alpha);
|
|
|
|
vertex_position_3d(vb, _v5.x, _v5.y, _v5.z);
|
|
vertex_normal( vb, _v5.nx, _v5.ny, _v5.nz);
|
|
vertex_texcoord( vb, _v5.u, _v5.v);
|
|
vertex_color( vb, _v5.color, _v5.alpha);
|
|
|
|
_in += 6;
|
|
|
|
n++;
|
|
i = floor(n / sub);
|
|
j = n % sub;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
vertex_end(VB[0]);
|
|
}
|
|
|
|
onParameterUpdate = initModel;
|
|
} |