Gold Miner

Zhaoxu Liu / slandarer
/
Gold Miner
on 5 Nov 2026
4
29
14
1
9628
game.m
function g = game()
g.init   = @initState;
g.update = @updateState;
g.render = @renderFrame;
end

function state = initState(ax)
state = struct();

fill(ax, [0,0,800,800],[0,600,600,0], [254,211,57]./255, 'EdgeColor','none')
fill(ax, [0,0,800,800],[0,480,480,0], [232,191,145]./255, 'EdgeColor','none')
tX = 0:800; tY1 = sin(tX./100).*30 + sin(tX./60).*20 + sin(tX./32).*5 + 320;
tY2 = sin(tX./97).*30 + sin(tX./55).*20 + sin(tX./16).*5 + 160;
fill(ax, [0,tX,800],[0,tY1,0], [224,183,119]./255, 'EdgeColor','none')
fill(ax, [0,tX,800],[0,tY2,0], [202,171,106]./255, 'EdgeColor','none')
plot(ax, [0, 800], [480, 480], 'Color','k', 'LineWidth',24)
plot(ax, [0, 800], [480, 480], 'Color',[200,143,98]./255, 'LineWidth',16)
state.goldP = [ ...
    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
    0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0;
    0 0 0 0 1 4 4 4 4 4 4 3 1 1 0 0 0 0 0 0;
    0 0 0 1 4 5 5 4 4 4 4 3 3 1 0 0 0 0 0 0;
    0 0 1 4 5 5 4 4 4 4 3 3 3 3 1 0 0 0 0 0;
    0 0 1 4 5 4 4 4 4 3 3 3 3 3 1 0 0 0 0 0;
    0 1 4 4 4 4 4 4 3 3 3 3 3 2 2 1 0 0 0 0;
    0 1 4 4 4 4 4 3 3 3 3 3 2 2 2 1 0 0 0 0;
    0 1 4 4 4 4 3 3 3 3 3 2 2 2 2 1 0 0 0 0;
    0 1 3 4 4 3 3 3 3 3 2 2 2 2 2 1 1 0 0 0;
    0 0 1 3 3 3 3 3 3 2 2 2 2 2 2 3 1 0 0 0;
    0 0 1 3 3 3 3 3 2 2 2 2 2 2 3 3 1 0 0 0;
    0 0 1 3 3 3 3 2 2 2 2 2 2 3 3 1 1 0 0 0;
    0 0 0 1 3 3 3 3 2 2 2 2 3 3 1 1 0 0 0 0;
    0 0 0 1 2 3 3 3 3 2 2 3 3 3 1 0 0 0 0 0;
    0 0 0 0 1 2 2 3 3 3 3 3 3 1 1 0 0 0 0 0;
    0 0 0 0 1 2 2 2 2 2 2 2 1 1 0 0 0 0 0 0;
    0 0 0 0 0 1 1 2 2 2 1 1 1 0 0 0 0 0 0 0;
    0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0;
    ];
state.goldC = [.29 .16 .04; .72 .50 .03; .90 .68 .10; 1.00 .84 .00; 1.0 .99 .85];
state.goldI = flipud(ind2rgb(state.goldP, state.goldC));
state.goldA = flipud(state.goldP ~= 0);
state.goldXY = [55, 55; 450, 70; 700, 200; 250, 160; 80, 170; ...
    750, 320; 100, 320; 400, 180; 600, 90; 450, 300; 560, 270];
state.goldR = randi([20, 60], [1, size(state.goldXY, 1)]);

state.goldHdls = gobjects(1, size(state.goldXY, 1));
for i = 1:size(state.goldXY, 1)
    state.goldHdls(i) = image(ax, [-1, 1].*state.goldR(i) + state.goldXY(i, 1), ...
        [-1, 1].*state.goldR(i) + state.goldXY(i, 2), state.goldI, 'AlphaData',state.goldA);
end
state.gohHdl = image(ax, [-1, 1].*0, ...
    [-1, 1].*50, state.goldI, 'AlphaData',state.goldA);
state.gohR = 10;
state.gohA = state.goldA.*0;
state.gohXY = [400, 450];

state.manP = [ ...
    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
    0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0;
    0 0 0 0 0 1 5 5 1 1 1 1 1 0 0 0 0 0 0 0;
    0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0;
    0 0 0 0 1 3 2 2 2 2 2 2 3 1 0 0 0 0 0 0;
    0 0 0 0 1 2 2 1 2 2 1 2 2 1 0 0 0 0 0 0;
    0 0 0 0 1 2 2 2 2 2 2 2 2 1 0 0 0 0 0 0;
    0 0 0 0 1 3 3 3 2 2 3 3 3 1 0 0 0 0 0 0;
    0 0 0 0 1 1 3 3 3 3 3 3 1 1 0 0 0 0 0 0;
    0 0 0 1 1 4 1 1 3 3 1 1 4 1 1 0 0 0 0 0;
    0 0 0 1 4 4 4 4 4 4 4 4 4 4 4 1 0 0 0 0;
    0 0 0 1 2 4 4 4 4 4 4 4 4 4 2 1 0 0 0 0;
    0 0 0 1 2 4 4 4 4 4 4 4 4 4 2 1 0 0 0 0;
    0 0 0 1 1 4 4 4 4 4 4 4 4 4 1 1 0 0 0 0;
    0 0 0 0 1 4 4 4 4 4 4 4 4 4 1 0 0 0 0 0;
    0 0 0 0 1 6 6 1 1 1 1 1 6 6 1 0 0 0 0 0;
    0 0 0 0 1 6 6 1 0 0 0 1 6 6 1 0 0 0 0 0;
    0 0 0 0 1 6 6 1 0 0 0 1 6 6 1 0 0 0 0 0;
    0 0 0 1 1 6 6 1 0 0 0 1 6 6 1 1 0 0 0 0;
    0 0 1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 0 0 0;
    ];
state.manC = [ .22 .12 .04; .96 .80 .62; .95 .95 .92; .90 .45 .12; 1.0 .88 .15; .25 .25 .30; ];
state.manI = flipud(ind2rgb(state.manP, state.manC));
state.manA = flipud(state.manP ~= 0);
image(ax, 400 + [-50, 50], 530 + [-50, 50], state.manI, 'AlphaData',state.manA)

state.clawXY = [400, 470];
state.TL = linspace(-2.3*pi/5, 2.3*pi/5, 60);
state.T = 5;
state.D = 1;
state.clawP = [ ...
    0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0;
    0 0 0 0 0 0 0 0 1 2 2 1 0 0 0 0 0 0 0 0 0;
    0 0 0 0 0 0 0 1 2 3 3 2 1 0 0 0 0 0 0 0 0;
    0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0;
    0 0 0 0 0 1 1 2 1 0 0 1 2 1 1 0 0 0 0 0 0;
    0 0 0 0 1 1 2 1 0 0 0 0 1 2 1 1 0 0 0 0 0;
    0 0 0 1 1 2 1 0 0 0 0 0 0 1 2 1 1 0 0 0 0;
    0 0 1 1 2 1 0 0 0 0 0 0 0 0 1 2 1 1 0 0 0;
    0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0;
    0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0;
    1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0;
    1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0;
    1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0;
    1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0;
    0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0;
    0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0;
    0 0 0 1 2 1 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0;
    0 0 0 0 1 1 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0;
    ];

state.clawC = [ .18 .12 .06; .55 .58 .62; .85 .88 .92];
state.clawI = ind2rgb(state.clawP, state.clawC);
nk = repmat(state.clawP == 0, [1 1 3]);
state.clawI(nk) = nan; state.clawI = flipud(state.clawI);
[state.clawMX, state.clawMY] = meshgrid(linspace(-.5, .5, 21), linspace(-1, 0, 18));

state.clawHdl = surf(ax, state.clawMX.*40 + state.clawXY(1), state.clawMY.*40 + state.clawXY(2), ...
    zeros(size(state.clawP)), state.clawI, 'EdgeColor','none');
state.lineHdl = plot(ax, [370, 400, 400], [510, 480, 470], 'LineWidth',4, 'Color','k');

state.v = 0;
state.hold = 0;
state.grab = 0;
state.t = 0;
state.cash = 0;
state.cHdl = text(ax, 20, 550, 'Cash : $ 0', 'Color',[32,138,15]./255, 'FontSize',21, 'FontWeight','bold');
state.tHdl = text(ax, 780, 550, 'Time left : 60.00', 'FontSize',21, 'FontWeight','bold', 'HorizontalAlignment','right');
end

function state = updateState(state, dt, pressed)
state.t = state.t + dt;
lt = 60 - state.t; lt(lt < 0) = 0;
state.tHdl.String = ['Time left : ', sprintf('%.2f', lt)];

if pressed
    state.grab = 1;
end
if state.t < 60
if state.grab
    tT = state.TL(state.T) - pi/2;
    v0 = [-cos(tT), sin(tT)];  
    switch state.hold
        case 0
            state.clawXY = state.clawXY + 10.*v0;
            b = vecnorm((state.goldXY - state.clawXY).') < (state.goldR + 10);
            if any(b)
                state.hold = 1;
                ind = find(b);
                state.gohR = state.goldR(ind(1));
                state.gohA = state.goldA;
                state.goldHdls(ind(1)).AlphaData = state.goldA.*0;
                state.goldXY(ind(1),:) = 10000;
            end
            if state.clawXY(1) < 0 || state.clawXY(1) > 800 || state.clawXY(2) < 0
                state.hold = -1;
            end
        case 1
            state.clawXY = state.clawXY - 6.*v0;
            if state.clawXY(2) > 467
                state.clawXY = [400, 470];
                state.cash = state.cash + state.gohR^2;
                state.hold = 0;
                state.grab = 0;
                state.gohR = 10;
                state.gohA = state.goldA.*0;
            end
        case -1
            state.clawXY = state.clawXY - 10.*v0;
            if state.clawXY(2) > 467
                state.clawXY = [400, 470];
                state.hold = 0;
                state.grab = 0;
            end
    end
    state.gohXY = state.clawXY + (22 + state.gohR).*v0;
else
    switch state.T 
        case 1, state.D = 1;
        case 60, state.D = -1;
    end
    state.T = state.T + state.D;

end
end
end

function renderFrame(~, state)
ct = cos(state.TL(state.T)); st = sin(state.TL(state.T));
rX = ct.*state.clawMX + st.*state.clawMY;
rY = ct.*state.clawMY - st.*state.clawMX;
state.clawHdl.XData = rX.*40 + state.clawXY(1);
state.clawHdl.YData = rY.*40 + state.clawXY(2);
state.gohHdl.XData = [-1,1].*state.gohR + state.gohXY(1);
state.gohHdl.YData = [-1,1].*state.gohR + state.gohXY(2);
state.gohHdl.AlphaData = state.gohA;
state.lineHdl.XData = [370, 400, state.clawXY(1)];
state.lineHdl.YData = [510, 480, state.clawXY(2)];
state.cHdl.String = ['Cash : $ ', num2str(state.cash)];
end
Play Game
Preview

Play Game opens this in MATLAB Drive. Click Run this app there to play.