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Pixel-Composer/scripts/__shapes/__shapes.gml

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#region shapes
global.SHAPES = [];
enum SHAPE_TYPE {
points,
triangles,
}
function SHAPE_rectangle(_sca) {
var triangles = [
[ new __vec2(-_sca[0], -_sca[1]), new __vec2( _sca[0], -_sca[1]), new __vec2(-_sca[0], _sca[1]) ],
[ new __vec2( _sca[0], -_sca[1]), new __vec2(-_sca[0], _sca[1]), new __vec2( _sca[0], _sca[1]) ],
];
var segment = [ new __vec2(-_sca[0], -_sca[1]), new __vec2( _sca[0], -_sca[1]),
new __vec2( _sca[0], _sca[1]), new __vec2(-_sca[0], _sca[1]),
new __vec2(-_sca[0], -_sca[1]) ];
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_circle(_sca, data = {}) {
var prec = max(3, data.side);
var triangles = [];
var ang = 360 / prec;
var segment = [];
for( var i = 0; i < prec; i++ ) {
var x0 = lengthdir_x(0.5, (i + 0) * ang) * _sca[0] * 2;
var y0 = lengthdir_y(0.5, (i + 0) * ang) * _sca[1] * 2;
var x1 = lengthdir_x(0.5, (i + 1) * ang) * _sca[0] * 2;
var y1 = lengthdir_y(0.5, (i + 1) * ang) * _sca[1] * 2;
array_push(triangles, [ new __vec2(0, 0), new __vec2(x0, y0), new __vec2(x1, y1) ]);
if(i == 0) array_push(segment, new __vec2(x0, y0));
array_push(segment, new __vec2(x1, y1));
}
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_star(_sca, data = {}) {
var prec = max(3, data.side);
var inner = data.inner;
var triangles = [];
var segment = [];
for( var i = 0; i < prec; i++ ) {
var otx = lengthdir_x(0.5, i / prec * 360) * _sca[0] * 2;
var oty = lengthdir_y(0.5, i / prec * 360) * _sca[1] * 2;
var inx = lengthdir_x(inner / 2, (i + 0.5) / prec * 360) * _sca[0] * 2;
var iny = lengthdir_y(inner / 2, (i + 0.5) / prec * 360) * _sca[1] * 2;
array_push(triangles, [ new __vec2(0, 0), new __vec2(otx, oty), new __vec2(inx, iny) ]);
var pi0 = new __vec2(inx, iny);
var inx = lengthdir_x(inner / 2, (i - 0.5) / prec * 360) * _sca[0] * 2;
var iny = lengthdir_y(inner / 2, (i - 0.5) / prec * 360) * _sca[1] * 2;
array_push(triangles, [ new __vec2(0, 0), new __vec2(otx, oty), new __vec2(inx, iny) ]);
array_push(segment, new __vec2(inx, iny));
array_push(segment, new __vec2(otx, oty));
array_push(segment, pi0);
}
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_capsule(_sca, data = {}) {
var rad = data.radius;
var prec = max(2, data.side);
var hh = _sca[1] * rad;
var shapes = [];
var segment = [];
array_push(segment, new __vec2(-_sca[0] + _sca[1], _sca[1]), new __vec2( _sca[0] - hh, hh));
var triangles = [
[ new __vec2(-_sca[0] + _sca[1], -_sca[1]), new __vec2( _sca[0] - hh, -hh), new __vec2(-_sca[0] + _sca[1], _sca[1]) ],
[ new __vec2( _sca[0] - hh, -hh), new __vec2(-_sca[0] + _sca[1], _sca[1]), new __vec2( _sca[0] - hh, hh) ],
];
shapes[0] = { type: SHAPE_TYPE.triangles, triangles: triangles };
var triangles = [];
var cx = -_sca[0] + _sca[1];
var cy = 0;
var ox, oy, nx, ny, oa, na;
for( var i = 0; i <= prec; i++ ) {
na = lerp(270, 90, i / prec);
nx = cx + lengthdir_x(_sca[1], na);
ny = cy + lengthdir_y(_sca[1], na);
if(i) {
array_push(triangles, [ new __vec2(cx, cy), new __vec2(ox, oy), new __vec2(nx, ny) ]);
array_push(segment, new __vec2(ox, oy));
}
array_push(segment, new __vec2(nx, ny));
oa = na;
ox = nx;
oy = ny;
}
array_push(segment, new __vec2(-_sca[0] + _sca[1], -_sca[1]), new __vec2( _sca[0] - hh, -hh));
shapes[1] = { type: SHAPE_TYPE.triangles, triangles: triangles };
var triangles = [];
var cx = _sca[0] - hh;
var cy = 0;
var ox, oy, nx, ny, oa, na;
var _seg = [];
for( var i = 0; i <= prec; i++ ) {
na = lerp(-90, 90, i / prec);
nx = cx + lengthdir_x(hh, na);
ny = cy + lengthdir_y(hh, na);
if(i) {
array_push(triangles, [ new __vec2(cx, cy), new __vec2(ox, oy), new __vec2(nx, ny) ]);
array_push(_seg, new __vec2(ox, oy));
}
array_push(_seg, new __vec2(nx, ny));
oa = na;
ox = nx;
oy = ny;
}
for( var i = 0, n = array_length(_seg); i < n; i++ )
array_push(segment, _seg[array_length(_seg) - i - 1]);
shapes[2] = { type: SHAPE_TYPE.triangles, triangles: triangles };
return [
shapes,
segment
];
}
function SHAPE_ring(_sca, data = {}) {
var prec = max(3, data.side);
var inner = data.inner;
var triangles = [];
var segment = [];
for( var i = 0; i < prec; i++ ) {
var ix0 = lengthdir_x(0.5 * inner, i / prec * 360) * _sca[0] * 2;
var iy0 = lengthdir_y(0.5 * inner, i / prec * 360) * _sca[1] * 2;
var nx0 = lengthdir_x(0.5, i / prec * 360) * _sca[0] * 2;
var ny0 = lengthdir_y(0.5, i / prec * 360) * _sca[1] * 2;
var ix1 = lengthdir_x(0.5 * inner, (i + 1) / prec * 360) * _sca[0] * 2;
var iy1 = lengthdir_y(0.5 * inner, (i + 1) / prec * 360) * _sca[1] * 2;
var nx1 = lengthdir_x(0.5, (i + 1) / prec * 360) * _sca[0] * 2;
var ny1 = lengthdir_y(0.5, (i + 1) / prec * 360) * _sca[1] * 2;
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx0, ny0), new __vec2(nx1, ny1) ]);
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx1, ny1), new __vec2(ix1, iy1) ]);
if(i == 0)
array_push(segment, new __vec2(nx0, ny0));
array_push(segment, new __vec2(nx1, ny1));
}
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_gear(_sca, data = {}) {
var teeth = max(3, data.teeth);
var teethH = data.teethH;
var teethT = data.teethT;
var prec = teeth * 2;
var inner = data.inner;
var body = 0.5 * (1 - teethH);
var teth = 0.5 * teethH;
var triangles = [];
var segment = [];
for( var i = 0; i < prec; i++ ) {
var ix0 = lengthdir_x(body * inner, i / prec * 360) * _sca[0] * 2;
var iy0 = lengthdir_y(body * inner, i / prec * 360) * _sca[1] * 2;
var nx0 = lengthdir_x(body, i / prec * 360) * _sca[0] * 2;
var ny0 = lengthdir_y(body, i / prec * 360) * _sca[1] * 2;
var ix1 = lengthdir_x(body * inner, (i + 1) / prec * 360) * _sca[0] * 2;
var iy1 = lengthdir_y(body * inner, (i + 1) / prec * 360) * _sca[1] * 2;
var nx1 = lengthdir_x(body, (i + 1) / prec * 360) * _sca[0] * 2;
var ny1 = lengthdir_y(body, (i + 1) / prec * 360) * _sca[1] * 2;
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx0, ny0), new __vec2(nx1, ny1) ]);
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx1, ny1), new __vec2(ix1, iy1) ]);
if(i == 0)
array_push(segment, new __vec2(nx0, ny0));
if(i % 2) {
var tx0 = nx0 + lengthdir_x(teth, (i + 0.5 - teethT) / prec * 360) * _sca[0] * 2;
var ty0 = ny0 + lengthdir_y(teth, (i + 0.5 - teethT) / prec * 360) * _sca[1] * 2;
var tx1 = nx1 + lengthdir_x(teth, (i + 0.5 + teethT) / prec * 360) * _sca[0] * 2;
var ty1 = ny1 + lengthdir_y(teth, (i + 0.5 + teethT) / prec * 360) * _sca[1] * 2;
array_push(triangles, [ new __vec2(tx0, ty0), new __vec2(nx0, ny0), new __vec2(nx1, ny1) ]);
array_push(triangles, [ new __vec2(tx0, ty0), new __vec2(nx1, ny1), new __vec2(tx1, ty1) ]);
array_push(segment, new __vec2(tx0, ty0));
array_push(segment, new __vec2(tx1, ty1));
}
array_push(segment, new __vec2(nx1, ny1));
}
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_cross(_sca, data = {}) {
var inner = data.inner;
var triangles = [];
var segment = [];
var side = min(_sca[0], _sca[1]) * inner;
array_push(triangles,
[ new __vec2(-side, -side), new __vec2( side, -side), new __vec2(-side, side) ],
[ new __vec2( side, -side), new __vec2(-side, side), new __vec2( side, side) ],
);
array_push(triangles, //top
[ new __vec2(-side, -side), new __vec2( side, -side), new __vec2(-side, -_sca[1]) ],
[ new __vec2( side, -side), new __vec2(-side, -_sca[1]), new __vec2( side, -_sca[1]) ],
);
array_push(triangles, //bottom
[ new __vec2(-side, _sca[1]), new __vec2( side, _sca[1]), new __vec2(-side, side) ],
[ new __vec2( side, _sca[1]), new __vec2(-side, side), new __vec2( side, side) ],
);
array_push(triangles, //left
[ new __vec2( -side, -side), new __vec2(-_sca[0], -side), new __vec2(-side, side) ],
[ new __vec2(-_sca[0], -side), new __vec2(-side, side), new __vec2(-_sca[0], side) ],
);
array_push(triangles, //right
[ new __vec2(_sca[0], -side), new __vec2( side, -side), new __vec2(_sca[0], side) ],
[ new __vec2( side, -side), new __vec2(_sca[0], side), new __vec2( side, side) ],
);
array_push(segment, new __vec2(-side, -side), new __vec2(-side, -_sca[1]), new __vec2( side, -_sca[1]), new __vec2(side, -side) );
array_push(segment, new __vec2(_sca[0], -side), new __vec2(_sca[0], side), new __vec2( side, side));
array_push(segment, new __vec2(side, _sca[1]), new __vec2(-side, _sca[1]), new __vec2(-side, side));
array_push(segment, new __vec2(-_sca[0], side), new __vec2(-_sca[0], -side), new __vec2(-side, -side));
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
function SHAPE_arc(_sca, data = {}) {
var prec = max(3, data.side);
var inner = data.inner;
var radRan = data.radRan;
var cap = data.cap;
var triangles = [];
var segment = [];
var oa, na;
var sgArcI = [], sgArcO = [];
for( var i = 0; i <= prec; i++ ) {
na = lerp(radRan[0], radRan[1], i / prec);
var ix1 = lengthdir_x(0.5 * inner, na) * _sca[0] * 2;
var iy1 = lengthdir_y(0.5 * inner, na) * _sca[1] * 2;
var nx1 = lengthdir_x(0.5, na) * _sca[0] * 2;
var ny1 = lengthdir_y(0.5, na) * _sca[1] * 2;
if(i) {
var ix0 = lengthdir_x(0.5 * inner, oa) * _sca[0] * 2;
var iy0 = lengthdir_y(0.5 * inner, oa) * _sca[1] * 2;
var nx0 = lengthdir_x(0.5, oa) * _sca[0] * 2;
var ny0 = lengthdir_y(0.5, oa) * _sca[1] * 2;
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx0, ny0), new __vec2(nx1, ny1) ]);
array_push(triangles, [ new __vec2(ix0, iy0), new __vec2(nx1, ny1), new __vec2(ix1, iy1) ]);
}
array_push(sgArcI, new __vec2(ix1, iy1));
array_push(sgArcO, new __vec2(nx1, ny1));
oa = na;
}
if(cap) {
var cx = lengthdir_x(0.5 * (inner + 1) / 2, radRan[0]) * _sca[0] * 2;
var cy = lengthdir_y(0.5 * (inner + 1) / 2, radRan[0]) * _sca[1] * 2;
var ox, oy, nx, ny, oa, na;
var sgCapI = [], sgCapO = [];
prec = max(ceil(prec / 2), 2);
for( var i = 0; i <= prec; i++ ) {
na = radRan[0] - 180 * i / prec;
nx = cx + lengthdir_x((1 - inner) / 2, na) * _sca[0];
ny = cy + lengthdir_y((1 - inner) / 2, na) * _sca[1];
if(i) array_push(triangles, [ new __vec2(cx, cy), new __vec2(ox, oy), new __vec2(nx, ny) ]);
array_push(sgCapI, new __vec2(nx, ny));
oa = na;
ox = nx;
oy = ny;
}
var cx = lengthdir_x(0.5 * (inner + 1) / 2, radRan[1]) * _sca[0] * 2;
var cy = lengthdir_y(0.5 * (inner + 1) / 2, radRan[1]) * _sca[1] * 2;
var ox, oy, nx, ny, oa, na;
for( var i = 0; i <= prec; i++ ) {
na = radRan[1] + 180 * i / prec;
nx = cx + lengthdir_x((1 - inner) / 2, na) * _sca[0];
ny = cy + lengthdir_y((1 - inner) / 2, na) * _sca[1];
if(i) array_push(triangles, [ new __vec2(cx, cy), new __vec2(ox, oy), new __vec2(nx, ny) ]);
array_push(sgCapO, new __vec2(nx, ny));
oa = na;
ox = nx;
oy = ny;
}
array_append(segment, sgArcI);
array_append(segment, array_reverse(sgCapO));
array_append(segment, array_reverse(sgArcO));
array_append(segment, sgCapI);
} else {
array_append(segment, sgArcI);
array_append(segment, array_reverse(sgArcO));
array_push(segment, sgArcI[0].clone());
}
return [
[{ type: SHAPE_TYPE.triangles, triangles: triangles }],
segment
];
}
#endregion
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