Created
July 7, 2016 05:01
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| def('surf.graph', function (act, viewport, size) { | |
| 'use strict'; | |
| var vec2 = use('lib.vec2'), | |
| t = use('lib.transform')({ | |
| size: size, | |
| anchor: vec2.scal(viewport.win, 0.5) | |
| }), | |
| worms = {}, | |
| worms_do = function (fun) { | |
| Object.keys(worms).forEach(function (k) { fun(worms[k]); }); | |
| }, | |
| store = {}; | |
| act.on('surf.graph.untouch', function () { worms = {}; }); | |
| act.on('surf.graph.touch', function (touch) { | |
| worms[touch.p.print] = use('lib.worm')(t.transform_v(touch.p.paw)).shrink(); | |
| if (touch.and) { | |
| worms[touch.p.print].baby = false; // allows for 'drag only' drawing tools | |
| touch.and({ | |
| p: t.localize_v(touch.p.paw), | |
| id: touch.p.print, | |
| surf_transform: t.get(), | |
| size: viewport.can, | |
| ratio: viewport.ratio | |
| }); | |
| } | |
| }); | |
| act.on('surf.graph.scratch', function (s) { | |
| if (!s) { return; } | |
| var w = worms[s.p.print]; | |
| if (!w) { | |
| worms[s.p.print] = use('lib.worm')(t.transform_v(s.p.paw)).shrink(); | |
| w = worms[s.p.print]; | |
| } | |
| if (w.baby) { | |
| w.head = t.transform_v(s.p.paw); | |
| w.baby = false; | |
| } else { | |
| w.grow(t.transform_v(s.p.paw)); | |
| } | |
| s.and({ | |
| worm: use('lib.worm')(t.wrap_v(w.head), w.tail), | |
| id: s.p.print, | |
| surf_transform: t.get(), | |
| size: viewport.can, | |
| ratio: viewport.ratio | |
| }); | |
| }); | |
| act.on('surf.graph.lift', function (p) { | |
| delete worms[p.print]; | |
| //console.log('lift surf: ', t.localize_v(p.paw), p.print); | |
| }); | |
| act.on('surf.graph.add', function () { | |
| act.out('surf.renderer.predraw', t.get()); | |
| }); | |
| act.on('surf.graph.move', function (p) { | |
| var reset = t.translate(t.rot_v(p)); | |
| worms_do(function (w) { w.head = vec2.sub(w.head, reset); }); | |
| act.out('surf.renderer.soil'); | |
| }); | |
| act.on('surf.graph.rotate', function (d) { | |
| t.rotate(d); | |
| act.out('surf.renderer.soil'); | |
| }); | |
| act.on('surf.graph.anchor', function (v) { | |
| var offset = t.anchor(vec2.mul(v, viewport.win)); | |
| worms_do(function (w) { w.head = vec2.sub(w.head, offset); }); | |
| act.out('surf.renderer.soil'); | |
| }); | |
| act.on('surf.graph.scale', function (n) { | |
| if (t.scale(n)) { worms_do(function (w) { w.baby = true; w.shrink(); }); } | |
| act.out('surf.renderer.scaled', t.get()); | |
| act.out('surf.renderer.soil'); | |
| }); | |
| act.on('surf.graph.scale_base_set', function (n) { | |
| t.scale_base_set(n); | |
| act.out('surf.renderer.soil'); | |
| }); | |
| act.on('resize viewport (fixed)', function (vp) { | |
| var rat = vec2.div(vp.new, size); | |
| act.out('surf.graph.scale_base_set', rat[0]); | |
| act.out('surf.graph.anchor', [0.5, 0.5]); | |
| act.out( | |
| 'surf.graph.move', | |
| vec2.mul(vec2.sub(vp.old, vp.new), vec2.div([0.5, 0.5], t.get().scale)) | |
| ); | |
| }); | |
| act.on('surf.graph.store_offset', function () { | |
| store.offset = t.get().offset; | |
| }); | |
| act.on('surf.graph.store_angle', function () { | |
| store.angle = t.get().angle; | |
| }); | |
| act.on('surf.graph.clear_offset', function () { delete store.offset; }); | |
| act.on('surf.graph.clear_angle', function () { delete store.angle; }); | |
| act.on('surf.graph.load_offset', function () { | |
| if (store.offset) { t.set_offset(store.offset); } | |
| }); | |
| act.on('surf.graph.load_angle', function () { | |
| if (store.angle !== undefined) { t.set_angle(store.angle); } | |
| }); | |
| }); |
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