CIRCUIT HOPPER

KARUPPASAMYPANDIYAN M
/
CIRCUIT HOPPER
on 7 Nov 2026
0
12
8
0
9046
game.m
function g = game()
    g.init = @initState;
    g.update = @updateState;
    g.render = @renderFrame;
end

function s = initState(ax)

    ax.XLim = [0 800];
    ax.YLim = [0 600];
    ax.YDir = 'reverse';
    ax.Color = [0.025 0.035 0.09];
    ax.XTick = [];
    ax.YTick = [];
    hold(ax,'on');

    s.mode = 0;
    s.y = 442;
    s.v = 0;
    s.ground = 442;
    s.gravity = 1650;
    s.jump = -700;
    s.air = false;

    s.elapsed = 0;
    s.score = 0;
    s.best = 0;
    s.energyCount = 0;
    s.phase = 0;

    s.ox = 900;
    s.ow = 42;
    s.oh = 72;
    s.ot = 1;
    s.ex = 650;
    s.ey = 355;

    % Background circuit decoration
    for k = 1:12
        x = k*75;
        line(ax,[x x+25 x+25 x+48],[520 520 545 545],...
            'Color',[0.04 0.19 0.27],'LineWidth',2,...
            'HitTest','off','PickableParts','none');
        rectangle(ax,'Position',[x+45 542 6 6],...
            'Curvature',[1 1],'FaceColor',[0 0.45 0.55],...
            'EdgeColor','none','HitTest','off','PickableParts','none');
    end

    for k = 1:18
        x = mod(k*137,790);
        y = mod(k*83,330)+35;
        rectangle(ax,'Position',[x y 3 3],...
            'Curvature',[1 1],'FaceColor',[0.15 0.42 0.58],...
            'EdgeColor','none','HitTest','off','PickableParts','none');
    end

    % Ground
    s.groundLine = line(ax,[0 800],[500 500],...
        'Color',[0 0.9 1],'LineWidth',3,...
        'HitTest','off','PickableParts','none');

    % Ground glow
    rectangle(ax,'Position',[0 501 800 5],...
        'FaceColor',[0.02 0.20 0.27],'EdgeColor','none',...
        'HitTest','off','PickableParts','none');

    % HUD panel
    rectangle(ax,'Position',[20 18 760 62],...
        'FaceColor',[0.045 0.07 0.15],...
        'EdgeColor',[0 0.65 0.85],'LineWidth',1.5,...
        'Curvature',0.08,'HitTest','off','PickableParts','none');

    s.scoreText = text(ax,42,55,'SCORE  0',...
        'Color',[0.2 1 1],'FontSize',17,'FontWeight','bold',...
        'HitTest','off');

    s.energyText = text(ax,330,55,'ENERGY  0',...
        'Color',[1 0.85 0.15],'FontSize',16,'FontWeight','bold',...
        'HitTest','off');

    s.bestText = text(ax,610,55,'BEST  0',...
        'Color',[0.4 1 0.6],'FontSize',16,'FontWeight','bold',...
        'HitTest','off');

    % Player robot
    s.body = rectangle(ax,'Position',[150 459 34 38],...
        'FaceColor',[0 0.85 0.75],'EdgeColor',[0.3 1 1],...
        'LineWidth',2,'Curvature',0.12,...
        'HitTest','off','PickableParts','none');

    s.head = rectangle(ax,'Position',[145 442 44 25],...
        'FaceColor',[0.1 0.95 0.85],'EdgeColor',[0.5 1 1],...
        'LineWidth',2,'Curvature',0.2,...
        'HitTest','off','PickableParts','none');

    s.eye1 = rectangle(ax,'Position',[153 450 7 7],...
        'FaceColor',[1 1 1],'EdgeColor','none',...
        'Curvature',[1 1],'HitTest','off','PickableParts','none');

    s.eye2 = rectangle(ax,'Position',[175 450 7 7],...
        'FaceColor',[1 1 1],'EdgeColor','none',...
        'Curvature',[1 1],'HitTest','off','PickableParts','none');

    s.antenna = line(ax,[167 167],[442 428],...
        'Color',[0 1 1],'LineWidth',3,...
        'HitTest','off','PickableParts','none');

    s.antennaDot = rectangle(ax,'Position',[162 423 10 10],...
        'Curvature',[1 1],'FaceColor',[1 0.8 0.1],...
        'EdgeColor','none','HitTest','off','PickableParts','none');

    s.leg1 = line(ax,[158 154],[495 500],...
        'Color',[0.1 1 0.8],'LineWidth',4,...
        'HitTest','off','PickableParts','none');

    s.leg2 = line(ax,[177 181],[495 500],...
        'Color',[0.1 1 0.8],'LineWidth',4,...
        'HitTest','off','PickableParts','none');

    % Obstacle
    s.obstacle = rectangle(ax,'Position',[900 428 42 72],...
        'FaceColor',[1 0.22 0.2],...
        'EdgeColor',[1 0.65 0.2],'LineWidth',2,...
        'Curvature',0.08,'HitTest','off','PickableParts','none');

    s.obsLine = line(ax,[900 942],[440 440],...
        'Color',[1 0.9 0.3],'LineWidth',3,...
        'HitTest','off','PickableParts','none');

    % Energy collectible
    s.energy = rectangle(ax,'Position',[650 355 24 24],...
        'Curvature',[1 1],'FaceColor',[1 0.85 0.05],...
        'EdgeColor',[1 1 0.5],'LineWidth',2,...
        'HitTest','off','PickableParts','none');

    s.energyCore = rectangle(ax,'Position',[657 362 10 10],...
        'Curvature',[1 1],'FaceColor',[1 1 1],...
        'EdgeColor','none','HitTest','off','PickableParts','none');

    % Screen messages
    s.title = text(ax,400,185,'CIRCUIT HOPPER',...
        'Color',[0 1 1],'FontSize',35,'FontWeight','bold',...
        'HorizontalAlignment','center','HitTest','off');

    s.subtitle = text(ax,400,235,'NEON ENERGY RUSH',...
        'Color',[1 0.8 0.15],'FontSize',19,...
        'FontWeight','bold','HorizontalAlignment','center',...
        'HitTest','off');

    s.message = text(ax,400,310,'TAP SPACE OR CLICK TO START',...
        'Color',[0.5 1 0.8],'FontSize',17,...
        'FontWeight','bold','HorizontalAlignment','center',...
        'HitTest','off');

    s.instruction = text(ax,400,355,...
        'JUMP  |  DODGE  |  COLLECT ENERGY',...
        'Color',[0.7 0.8 1],'FontSize',13,...
        'HorizontalAlignment','center','HitTest','off');

    s.mode = 0;
end

function s = updateState(s,dt,pressed)

    if s.mode == 0
        if pressed
            s.mode = 1;
            s.v = s.jump;
            s.air = true;
        end
        return;
    end

    if s.mode == 2
        if pressed
            s.mode = 1;
            s.y = s.ground;
            s.v = s.jump;
            s.air = true;
            s.elapsed = 0;
            s.score = 0;
            s.energyCount = 0;
            s.ox = 900;
            s.ex = 650;
            s.ey = 355;
        end
        return;
    end

    s.elapsed = s.elapsed+dt;
    s.phase = s.phase+dt*12;

    % Jump control
    if pressed && ~s.air
        s.v = s.jump;
        s.air = true;
    end

    % Robot physics
    s.v = s.v+s.gravity*dt;
    s.y = s.y+s.v*dt;

    if s.y >= s.ground
        s.y = s.ground;
        s.v = 0;
        s.air = false;
    end

    % Increasing difficulty
    speed = 300+min(220,s.elapsed*5);

    % Move obstacle
    s.ox = s.ox-speed*dt;

    if s.ox+s.ow < 0
        s.ox = 850+rand*180;
        s.ot = floor(rand*3)+1;

        if s.ot == 1
            s.oh = 60;
            s.ow = 38;
        elseif s.ot == 2
            s.oh = 105;
            s.ow = 30;
        else
            s.oh = 78;
            s.ow = 55;
        end
    end

    % Move energy orb
    s.ex = s.ex-speed*dt;

    if s.ex < -30
        s.ex = 850+rand*250;
        s.ey = 335+rand*90;
    end

    % Collect energy
    if s.ex < 187 && s.ex+24 > 145 && ...
            s.ey < s.y+58 && s.ey+24 > s.y

        s.energyCount = s.energyCount+1;
        s.ex = 950+rand*200;
        s.ey = 335+rand*90;
    end

    % Obstacle collision
    obstacleTop = 500-s.oh;

    hit = (187 > s.ox) && ...
          (145 < s.ox+s.ow) && ...
          (s.y+58 > obstacleTop) && ...
          (s.y < 500);

    if hit
        s.mode = 2;
        s.best = max(s.best,s.score);
    end

    % Score
    s.score = floor(s.elapsed*10)+s.energyCount*100;
    s.best = max(s.best,s.score);

end

function renderFrame(~,s)

    % Update player components
    y = s.y;

    s.body.Position = [150 y+17 34 38];
    s.head.Position = [145 y 44 25];
    s.eye1.Position = [153 y+8 7 7];
    s.eye2.Position = [175 y+8 7 7];

    s.antenna.XData = [167 167];
    s.antenna.YData = [y y-14];

    s.antennaDot.Position = [162 y-19 10 10];

    legSwing = sin(s.phase)*5;
    if s.air
        legSwing = 0;
    end

    s.leg1.XData = [158 154+legSwing];
    s.leg1.YData = [y+53 y+58];

    s.leg2.XData = [177 181-legSwing];
    s.leg2.YData = [y+53 y+58];

    % Obstacle graphics
    s.obstacle.Position = [s.ox 500-s.oh s.ow s.oh];

    if s.ot == 1
        s.obstacle.FaceColor = [1 0.18 0.2];
    elseif s.ot == 2
        s.obstacle.FaceColor = [0.85 0.1 0.8];
    else
        s.obstacle.FaceColor = [1 0.45 0.05];
    end

    s.obsLine.XData = [s.ox s.ox+s.ow];
    s.obsLine.YData = [500-s.oh+10 500-s.oh+10];

    % Energy orb graphics
    s.energy.Position = [s.ex s.ey 24 24];
    s.energyCore.Position = [s.ex+7 s.ey+7 10 10];

    % HUD
    s.scoreText.String = ['SCORE  ' num2str(s.score)];
    s.energyText.String = ['ENERGY  ' num2str(s.energyCount)];
    s.bestText.String = ['BEST  ' num2str(s.best)];

    % Screen modes
    if s.mode == 0

        s.title.Visible = 'on';
        s.subtitle.Visible = 'on';
        s.message.Visible = 'on';
        s.instruction.Visible = 'on';

        s.message.String = 'TAP SPACE OR CLICK TO START';
        s.message.Color = [0.5 1 0.8];
        s.instruction.String = 'JUMP  |  DODGE  |  COLLECT ENERGY';

    elseif s.mode == 1

        s.title.Visible = 'off';
        s.subtitle.Visible = 'off';
        s.message.Visible = 'off';
        s.instruction.Visible = 'off';

    else

        s.title.Visible = 'on';
        s.subtitle.Visible = 'on';
        s.message.Visible = 'on';
        s.instruction.Visible = 'on';

        s.title.String = 'GAME OVER!';
        s.title.Color = [1 0.2 0.3];

        s.subtitle.String = ['FINAL SCORE: ' num2str(s.score)];
        s.subtitle.Color = [1 0.85 0.15];

        s.message.String = 'TAP SPACE OR CLICK TO PLAY AGAIN';
        s.message.Color = [0.3 1 0.7];

        s.instruction.String = ['ENERGY COLLECTED: ' ...
            num2str(s.energyCount)];
    end
end
Play Game
Preview

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