118 lines
2.6 KiB
JavaScript
118 lines
2.6 KiB
JavaScript
//
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// cameraIntro.js
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//--------------------
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// Runs the intro camera for a scene.
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// by RHY3756547
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//
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// includes: main.js
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//
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window.cameraIntro = function() {
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var thisObj = this;
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this.kart = kart;
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this.getView = getView;
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this.targetShadowPos = [0, 0, 0]
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var mat = mat4.create();
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var curCamNum = -1;
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var curCam = null;
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var route = null;
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var routePos = 0;
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var routeSpeed = 0;
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var routeProg = 0;
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var duration = 0;
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var pointInterp = 0;
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var normalFOV = 70;
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var zoomLevel = 1;
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var viewW;
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var viewH;
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function getView(scene, width, height) {
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if (curCam == null) {
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restartCam(scene);
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}
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viewW = width;
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viewH = height;
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if (zoomLevel < curCam.zoomMark1) zoomLevel += curCam.zoomSpeedM1;
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else if (zoomLevel > curCam.zoomMark2) zoomLevel += curCam.zoomSpeedM2;
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else zoomLevel += curCam.zoomSpeed;
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if (zoomLevel > curCam.zoomEnd) zoomLevel = curCam.zoomEnd;
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if (duration-- < 0) {
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var cams = scene.nkm.sections["CAME"].entries;
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if (curCam.nextCam != -1) {
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curCamNum = curCam.nextCam;
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curCam = cams[curCamNum];
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zoomLevel = curCam.zoomStart;
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initCam(scene, curCam)
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} else {
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restartCam(scene);
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}
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}
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thisObj.view = camFunc(scene, curCam);
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}
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function restartCam(scene) {
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var cams = scene.nkm.sections["CAME"].entries;
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for (var i=0; i<cams.length; i++) {
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if (cams[i].firstCam == 2) {
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curCamNum = i;
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curCam = cams[curCamNum];
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zoomLevel = curCam.zoomStart;
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initCam(scene, curCam)
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}
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}
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}
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function recalcRouteSpeed() {
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routeSpeed = (curCam.routeSpeed/100)/60;
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//(curCam.routeSpeed/20)/vec3.dist(route[routePos].pos, route[(routePos+1)%route.length].pos);
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}
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var camFunc = function(scene, came) {
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var camPos = vec3.lerp([], route[routePos].pos, route[(routePos+1)%route.length].pos, routeProg);
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routeProg += routeSpeed;
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if (routeProg > 1) {
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routePos = (routePos+1)%route.length;
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routeProg = 0;
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recalcRouteSpeed();
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}
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pointInterp += (curCam.pointSpeed/100)/60;
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if (pointInterp > 1) pointInterp = 1;
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var lookAtPos = vec3.lerp([], curCam.pos2, curCam.pos3, pointInterp)
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vec3.scale(camPos, camPos, 1/1024);
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vec3.scale(lookAtPos, lookAtPos, 1/1024);
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var mat = mat4.lookAt(mat4.create(), camPos, lookAtPos, [0, 1, 0]);
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var p = mat4.perspective(mat4.create(), (zoomLevel*normalFOV/180)*Math.PI, viewW / viewH, 0.01, 10000.0);
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thisObj.targetShadowPos = lookAtPos;
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return {p:p, mv:mat, pos: vec3.scale([], vec3.transformMat4([], [0,0,0], mat4.invert([], mat)), 1024)}
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}
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var initCam = function(scene, came) {
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var routes = scene.paths;
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route = routes[came.camRoute];
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routePos = 0;
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routeProg = 0;
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duration = came.duration;
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recalcRouteSpeed();
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}
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} |