Lucas de Vries
64 lines
1.5 KiB
ActionScript 3
64 lines
1.5 KiB
ActionScript 3
export setGalaxyPlanesShown;
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export getGalaxyPlanesShown;
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bool SHOW_GALAXY_PLANES = false;
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void setGalaxyPlanesShown(bool enabled) {
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SHOW_GALAXY_PLANES = enabled;
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}
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bool getGalaxyPlanesShown() {
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return SHOW_GALAXY_PLANES;
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}
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class GalaxyPlaneScript {
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vec3d origin;
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double radius;
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double planeDist = 0;
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GalaxyPlaneScript(Node& node) {
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}
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void establish(Node& node, vec3d Origin, double Radius) {
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origin = Origin;
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radius = Radius;
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node.scale = radius;
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node.position = origin;
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node.rebuildTransform();
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}
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bool preRender(Node& node) {
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if(!SHOW_GALAXY_PLANES)
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return false;
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//Calculate distance to plane
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line3dd camLine(cameraPos, cameraPos+cameraFacing);
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vec3d intersect;
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if(!camLine.intersectY(intersect, origin.y, false)) {
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intersect = cameraPos;
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intersect.y = origin.y;
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planeDist = sqrt(
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sqr(max(0.0, intersect.distanceTo(origin) - radius))
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+ sqr(cameraPos.y - origin.y));
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}
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else {
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planeDist = intersect.distanceTo(cameraPos);
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max(0.0, intersect.distanceTo(origin) - radius);
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}
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return planeDist > 3000.0;
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}
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void render(Node& node) {
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shader::RADIUS = radius;
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shader::PLANE_DISTANCE = planeDist;
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drawPolygonStart(PT_Quads, 1, material::GalaxyPlane);
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drawPolygonPoint(origin + vec3d(-radius, 0, -radius), vec2f(0.f, 0.f));
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drawPolygonPoint(origin + vec3d(+radius, 0, -radius), vec2f(1.f, 0.f));
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drawPolygonPoint(origin + vec3d(+radius, 0, +radius), vec2f(1.f, 1.f));
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drawPolygonPoint(origin + vec3d(-radius, 0, +radius), vec2f(0.f, 1.f));
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drawPolygonEnd();
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}
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};
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