Contract Source Code:
File 1 of 1 : Wei
// .-. .-. _
// : :.-.: : :_;
// : :: :: : .--. .-.
// : `' `' ;' '_.': :
// `.,`.,' `.__.':_;
//
// SPDX-License-Identifier: MIT
// Copyright Han, 2023
pragma solidity ^0.8.25;
contract Wei {
event ArtpieceCreated(address indexed creator);
event ArtpieceTransferred(address indexed oldOwner, address indexed newOwner);
event BidAccepted(uint256 value, address indexed fromAddress, address indexed toAddress);
event BidPlaced(uint256 value, address indexed fromAddress);
event BidWithdrawn(uint256 value, address indexed fromAddress);
event ListedForSale(uint256 value, address indexed fromAddress, address indexed toAddress);
event SaleCanceled(uint256 value, address indexed fromAddress, address indexed toAddress);
event SaleCompleted(uint256 value, address indexed fromAddress, address indexed toAddress);
error FundsTransfer();
error InsufficientFunds();
error ListedForSaleToSpecificAddress();
error NoBid();
error NotForSale();
error NotOwner();
error NotRoyaltyRecipient();
error NotYourBid();
error NullAddress();
error RoyaltyTooHigh();
string public constant MANIFEST = (
'Follow the roots.' '\n'
);
string public constant CORE = (
'"use strict";const credits="wwwtyro sphere intersect";let s={signature:"data:image/svg+xml;base64,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",mouse_sensitivity:1,mouse_limit:0,color_offset_frames:60,frame:0,res:[0,0],save_frames:0},h={newline:String.fromCharCode(10),parser:new URL(window.location)};const mobile=/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent);let w=window,d=document;d.body.style.touchAction="none",d.body.style.userSelect="none";let b=d.body,wrapper=d.createElement("div");wrapper.style.cssText="position: relative; margin: 0 auto",d.body.appendChild(wrapper);let c=d.createElement("canvas");c.style.display="block",wrapper.appendChild(c);const image=d.createElement("img");image.src=s.signature.trim(),image.style.cssText="width:40px;z-index:50;position:absolute;bottom:20px;right:20px;",wrapper.appendChild(image);const glOptions={powerPreference:"high-performance"};mobile&&delete glOptions.powerPreference,w.gl=c.getContext("webgl2",glOptions),h.uniform1i=(e,t)=>h.uniform(e,t,"uniform1i"),h.uniform=(e,t,r)=>{s.uniforms||={};(s.uniforms[e]||=(()=>{const i=gl.getUniformLocation(s.current_program,e),o=r||(Array.isArray(t)?"uniform2fv":"uniform1f");return{update:e=>gl[o](i,e)}})()).update(t)},h.resize=()=>{let e,t,r,i={x:h.ix.mouse.x/s.res[0],y:h.ix.mouse.y/s.res[1]};const o=h.parser.searchParams.get("res",t);o?(e=t=o,r=1):(e=w.innerWidth,t=w.innerHeight,s.aspect&&(e>t*s.aspect?e=t*s.aspect:t=e/s.aspect),r=w.devicePixelRatio),s.res[0]=c.width=e*r,s.res[1]=c.height=t*r,wrapper.style.width=c.style.width=e+"px",wrapper.style.height=c.style.height=t+"px",h.ix.set(c.width*i.x,c.height*i.y)},h.ix={start:{x:0,y:0},mouse:{x:0,y:0}},h.ix.set=(e,t)=>{h.ix.mouse={x:e,y:t}},h.ix.start=e=>{h.ix.start.x=e.clientX,h.ix.start.y=e.clientY,d.addEventListener("pointermove",h.ix.move)},h.clamp=(e,t,r)=>Math.max(t,Math.min(r,e)),h.ix.move=e=>{h.ix.mouse.x+=(e.clientX-h.ix.start.x)*window.devicePixelRatio*s.mouse_sensitivity,h.ix.mouse.y-=(e.clientY-h.ix.start.y)*window.devicePixelRatio*s.mouse_sensitivity,h.ix.start.x=e.clientX,h.ix.start.y=e.clientY,h.ix.mouse.x=h.clamp(h.ix.mouse.x,s.res[0]*s.mouse_limit,s.res[0]*(1-s.mouse_limit)),h.ix.mouse.y=h.clamp(h.ix.mouse.y,s.res[1]*s.mouse_limit,s.res[1]*(1-s.mouse_limit))},h.ix.stop=()=>{d.removeEventListener("pointermove",h.ix.move)},h.save={},h.save.toImage=()=>{const e=new Date;let t=String(e.getFullYear()).slice(2,4)+"-"+e.getMonth()+"-"+e.getDate()+" ("+s.frame+").png",r=document.createElement("a");r.setAttribute("download",t);let i=c.toDataURL("image/png").replace("data:image/png","data:application/octet-stream");r.setAttribute("href",i),r.click(),r.remove()},h.buildShader=(e,t)=>{let r=gl.createShader(e);return gl.shaderSource(r,t),gl.compileShader(r),r},h.initProgram=(e,t,r)=>{const i=gl.createProgram(),s=h.buildShader(gl.VERTEX_SHADER,t),o=h.buildShader(gl.FRAGMENT_SHADER,e);gl.attachShader(i,s),gl.attachShader(i,o),gl.linkProgram(i),gl.getShaderParameter(s,gl.COMPILE_STATUS)||console.error("V: "+gl.getShaderInfoLog(s)),gl.getShaderParameter(o,gl.COMPILE_STATUS)||console.error("F: "+gl.getShaderInfoLog(o)),gl.getProgramParameter(i,gl.LINK_STATUS)||console.error("P: "+gl.getProgramInfoLog(i));let a=gl.createBuffer(),n=gl.getAttribLocation(i,"p");return gl.bindBuffer(gl.ARRAY_BUFFER,a),gl.bufferData(gl.ARRAY_BUFFER,r,gl.STATIC_DRAW),gl.enableVertexAttribArray(n),gl.vertexAttribPointer(n,2,gl.FLOAT,!1,0,0),i},s.pixel=new Uint8Array(4),h.render=()=>{gl.viewport(0,0,c.width,c.height),gl.useProgram(s.program),s.current_program=s.program,s.frame<s.save_frames?h.uniform("u_time",.01667*s.frame):h.uniform("u_time",.001*performance.now()),h.uniform("u_resolution",s.res),h.uniform("u_mouse",[h.ix.mouse.x,h.ix.mouse.y]),gl.drawArrays(gl.TRIANGLE_STRIP,0,4),gl.readPixels(0,0,1,1,gl.RGBA,gl.UNSIGNED_BYTE,s.pixel),(h.save.queued||s.frame<s.save_frames&&s.frame>3)&&(h.save.queued=!1,h.save.toImage()),s.frame++,requestAnimationFrame(h.render)};const init=async()=>{if(gl){h.resize(),h.ix.set(c.width/2,c.height/2),d.addEventListener("pointerdown",h.ix.start),d.addEventListener("pointerup",h.ix.stop),w.addEventListener("resize",h.resize),s.save_frames=h.parser.searchParams.get("frames")||0,d.addEventListener("keyup",(e=>{if(!(e.ctrlKey||e.altKey||e.shiftKey||e.metaKey))switch(e.key){case"f":const e=prompt("Frames to render",s.save_frames);h.parser.searchParams.set("frames",e),window.location=h.parser.href;break;case"r":const t=prompt("Canvas size in pixels (max 8192)",c.height);t>=8&&t<=8192&&(h.parser.searchParams.set("res",t),window.location=h.parser.href);break;case"s":h.save.queued=!0}}));let e=Float32Array.of(-1,1,-1,-1,1,1,1,-1);const t="#version 300 es"+h.newline+"precision highp float; in vec2 p; void main(){ gl_Position =vec4(p,1.0,1.0); }";let r="precision highp float;out vec4 fragColor;const int AA=3;uniform vec2 u_resolution;uniform float u_time;uniform vec2 u_mouse;const vec3 v=vec3(.941176470588235),f=vec3(.784313725490196);const vec3 n=vec3(0,0,-2);const float m[4]=float[4](.05,1.5,1.5,.02);float t(vec3 v,vec3 f,vec3 y,float A){float s=dot(f,f),i,c;vec3 d=v-y;i=2.*dot(f,d);c=dot(d,d)-A*A;return i*i-4.*s*c<0.?-1.:(-i-sqrt(i*i-4.*s*c))/(2.*s);}vec2 s(vec3 v,vec3 f,out vec3 d,float A){float s=0.,i=1e3,c=m[0],n,r,y;vec3 u=vec3(0);n=t(v,f,u,c);if(n!=-1.&&n<i)s=1.,i=n,d=normalize(v+f*n-u);r=A;y=1.55+(sin(A)+1.)/2.*.25;c=m[1];u=vec3(y*cos(r),y*sin(r),0);n=t(v,f,u,c);if(n!=-1.&&n<i)s=1.,i=n,d=normalize(v+f*n-u);c=m[2];r+=3.14159;u=vec3(y*cos(r),y*sin(r),0);n=t(v,f,u,c);if(n!=-1.&&n<i)s=1.,i=n,d=normalize(v+f*n-u);r=A*4.;c=m[3];u=vec3(0);u.x+=cos(r)*.095;u.z+=sin(r)*.095;n=t(v,f,u,c);if(n!=-1.&&n<i)s=1.,i=n,d=normalize(v+f*n-u);return vec2(i,s);}vec3 s(){vec3 v=gl_FragCoord.xyy,c;v=vec3(dot(v,vec3(127.1,311.7,74.7)),dot(v,vec3(269.5,183.3,246.1)),dot(v,vec3(113.5,271.9,124.6)));c=-1.+2.*fract(sin(v)*43758.5453123);return fract(555.*sin(777.*c))/256.;}vec3 s(vec3 v){v+=s();return v;}vec3 e(inout vec3 i,inout vec3 u,float r,float A){vec3 d,c,y;float m=r,z;vec2 t=s(i,u,d,m),e;r*=5.;r+=t.y*3.14159*.2;c=vec3(cos(r),sin(r),0)*10.;c.z=n.z;e=vec2(u_mouse/u_resolution);c.x+=(e.x-.5)*60.+n.x;c.y-=(e.y-.5)*60.-n.y;y=normalize(c-i-t.x*u);z=1.;if(t.y>=1.){float x=pow(1.-dot(d,-u),2.),g;x*=1.4;x=max(0.,x);g=max(0.,dot(d,y));g*=1.;z=g+x;}return mix(f,v,z);}void main(){float v=u_time,c,u;vec3 f=vec3(0,0,-1),r;vec2 i=gl_FragCoord.xy;c=.5+.5*sin(i.x*147.)*sin(i.y*131.);u=.5*smoothstep(0.,1.,sin(2.*acos(-1.)*v/25.));v+=28.05;r=vec3(0);for(int n=0;n<AA;n++)for(int d=0;d<AA;d++){vec2 A=vec2(n,d)/float(AA)-.5;vec3 y=vec3((i+A-.5*u_resolution.xy)/u_resolution.y,0);float x=v-.5*(float(d*AA+n)+c)/float(AA*AA),z=2.*acos(-1.)*x/50.,g;g=2.*acos(-1.)*(x-u)/50.;r.x+=e(y,f,g,z).x;g=2.*acos(-1.)*x/50.;r.y+=e(y,f,g,z).y;g=2.*acos(-1.)*(x+u)/50.;r.z+=e(y,f,g,z).z;}r/=float(AA*AA);r=s(r);fragColor=vec4(r,1);}";if(r="#version 300 es"+h.newline+r,mobile){const e="const int AA=3";r=r.replace(e,"const int AA=2")}window.program=s.program=h.initProgram(r,t,e),h.render()}else{const e=d.createElement("div");e.style.cssText="align-items:center;background:#969696;color:#fff;display:flex;font-family:monospace;font-size:20px;height:100vh;justify-content:center;left:0;position:fixed;top:0;width:100vw;",e.innerHTML="Your browser does not support WebGL.",b.append(e)}};init();'
);
modifier onlyOwner() {
if (owner != msg.sender) {
revert NotOwner();
}
_;
}
modifier onlyRoyaltyRecipient() {
if (royaltyRecipient != msg.sender) {
revert NotRoyaltyRecipient();
}
_;
}
struct Offer {
bool active;
uint256 value;
address toAddress;
}
struct Bid {
bool active;
uint256 value;
address fromAddress;
}
address public owner;
Offer public currentOffer;
Bid public currentBid;
address public royaltyRecipient;
uint256 public royaltyPercentage;
mapping (address => uint256) public pendingWithdrawals;
constructor(uint256 _royaltyPercentage) {
if (_royaltyPercentage >= 100) {
revert RoyaltyTooHigh();
}
owner = msg.sender;
royaltyRecipient = msg.sender;
royaltyPercentage = _royaltyPercentage;
emit ArtpieceCreated(msg.sender);
}
function name() public view virtual returns (string memory) {
return 'Wei';
}
function symbol() public view virtual returns (string memory) {
return 'W';
}
function artpiece() public view virtual returns (string memory) {
return string.concat(
'<!DOCTYPE html>'
'<html>'
'<head>'
'<title>', 'Wei', '</title>'
'<meta name="viewport" content="width=device-width, initial-scale=1" />'
'<style>html,body{background:#969696;margin:0;padding:0;overflow:hidden;}</style>'
'</head>'
'<body>'
'<script type="text/javascript">',
CORE,
'</script>'
'</body>'
'</html>'
);
}
function withdraw() public {
uint256 amount = pendingWithdrawals[msg.sender];
pendingWithdrawals[msg.sender] = 0;
_sendFunds(amount);
}
function transferOwnership(address newOwner) public onlyOwner {
if (newOwner == address(0)) {
revert NullAddress();
}
_transferOwnership(newOwner);
if (currentBid.fromAddress == newOwner) {
uint256 amount = currentBid.value;
currentBid = Bid({ active: false, value: 0, fromAddress: address(0) });
pendingWithdrawals[newOwner] += amount;
}
if (currentOffer.active) {
currentOffer = Offer({ active: false, value: 0, toAddress: address(0) });
}
}
function listForSale(uint256 salePriceInWei) public onlyOwner {
currentOffer = Offer({ active: true, value: salePriceInWei, toAddress: address(0) });
emit ListedForSale(salePriceInWei, msg.sender, address(0));
}
function listForSaleToAddress(uint256 salePriceInWei, address toAddress) public onlyOwner {
currentOffer = Offer({ active: true, value: salePriceInWei, toAddress: toAddress });
emit ListedForSale(salePriceInWei, msg.sender, toAddress);
}
function cancelFromSale() public onlyOwner {
Offer memory oldOffer = currentOffer;
currentOffer = Offer({ active: false, value: 0, toAddress: address(0) });
emit SaleCanceled(oldOffer.value, msg.sender, oldOffer.toAddress);
}
function buyNow() public payable {
if (!currentOffer.active) {
revert NotForSale();
}
if (currentOffer.toAddress != address(0) && currentOffer.toAddress != msg.sender) {
revert ListedForSaleToSpecificAddress();
}
if (msg.value != currentOffer.value) {
revert InsufficientFunds();
}
currentOffer = Offer({ active: false, value: 0, toAddress: address(0) });
uint256 royaltyAmount = _calcRoyalty(msg.value);
pendingWithdrawals[owner] += msg.value - royaltyAmount;
pendingWithdrawals[royaltyRecipient] += royaltyAmount;
emit SaleCompleted(msg.value, owner, msg.sender);
_transferOwnership(msg.sender);
}
function placeBid() public payable {
if (msg.value <= currentBid.value) {
revert InsufficientFunds();
}
if (currentBid.value > 0) {
pendingWithdrawals[currentBid.fromAddress] += currentBid.value;
}
currentBid = Bid({ active: true, value: msg.value, fromAddress: msg.sender });
emit BidPlaced(msg.value, msg.sender);
}
function acceptBid() public onlyOwner {
if (!currentBid.active) {
revert NoBid();
}
uint256 amount = currentBid.value;
address bidder = currentBid.fromAddress;
currentOffer = Offer({ active: false, value: 0, toAddress: address(0) });
currentBid = Bid({ active: false, value: 0, fromAddress: address(0) });
uint256 royaltyAmount = _calcRoyalty(amount);
pendingWithdrawals[owner] += amount - royaltyAmount;
pendingWithdrawals[royaltyRecipient] += royaltyAmount;
emit BidAccepted(amount, owner, bidder);
_transferOwnership(bidder);
}
function withdrawBid() public {
if (msg.sender != currentBid.fromAddress) {
revert NotYourBid();
}
uint256 amount = currentBid.value;
currentBid = Bid({ active: false, value: 0, fromAddress: address(0) });
_sendFunds(amount);
emit BidWithdrawn(amount, msg.sender);
}
function setRoyaltyRecipient(address newRoyaltyRecipient) public onlyRoyaltyRecipient {
if (newRoyaltyRecipient == address(0)) {
revert NullAddress();
}
royaltyRecipient = newRoyaltyRecipient;
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = owner;
owner = newOwner;
emit ArtpieceTransferred(oldOwner, newOwner);
}
function _sendFunds(uint256 amount) internal virtual {
(bool success, ) = msg.sender.call{value: amount}('');
if (!success) {
revert FundsTransfer();
}
}
function _calcRoyalty(uint256 amount) internal virtual returns (uint256) {
return (amount * royaltyPercentage) / 100;
}
}