叩叮籃球 | JavaScript 程式專案

{"id":9002,"student_id":1470,"content":"setBackdrop(\"gold\");\nvar ball = createSprite({\n    x: 120,\n    y: 240,\n    scale: 0.1,\n    costumes: \"basball.gif\"\n});\n\nvar hoop = createSprite({\n    x: 500,\n    y: 50,\n    scale: 0.2,\n    costumes: \"Hoop.png\",\n});\nvar canGo = false,\n    vy = 0,\n    hoopvy = 5,\n    score = 0,\n    vStrength = 0.1;\n\n// var angle = 0;\nvar strength = 5;\n\nwhen(\"holding\", \"w\", function () {\n    ball.direction -= 3;\n    ball.direction %= 180;\n});\n\nwhen(\"holding\", \"s\", function () {\n    ball.direction += 3;\n    ball.direction %= 180;\n});\n\n\nwhen(\"holding\", \"space\", function () {\n    strength += vStrength;\n    if(strength \u003e= 10){\n        vStrength = -0.1;\n    } else if(strength \u003c= 0){\n        vStrength = 0.1;\n    }\n\n});\n\nwhen(\"keyup\", \"space\", function(){\n    canGo = true;\n})\n\nforever(function () {\n    print(score, 20, 20, 'GoldenRod', 80);\n    // ball.direction = angle;\n    hoop.direction = 0;\n    if (hoop.y == 0) {\n        hoopvy = -5;\n    } else if (hoop.y == 400) {\n        hoopvy = 5;\n    }\n    hoop.stepForward(hoopvy);\n\n    if (canGo) {\n        if (ball.y \u003c= 480 \u0026\u0026 !ball.touched(hoop)) {\n            ball.stepForward(strength * 2 + 5);\n            ball.y += vy;\n            vy += 0.5;\n\n        } else {\n            if(ball.touched(hoop)){\n                score++;\n            }\n            canGo = false;\n            ball.x = 120,\n            ball.y = 40 + Math.random()*400,\n            ball.direction = 90,\n            vx = 0,\n            vy = 0,\n            hasGotVelocity = false;\n            strength = 0;\n        }\n    } else {\n        drawPreview(ball.direction, strength);\n    }\n\n    \n});\n\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-10-16T07:36:24.845+08:00","name":"叩叮籃球","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/9002/370c9094b248d2f18076dcac4a4e569a.jpg"},"parent_id":2,"plugin":"function drawPreview(angle, strength){\n    angle -= 90;\n    pen.size = 5;\n    pen.color = \"white\";\n    angle = angle * Math.PI / 180;\n    var qq = 40;\n    pen.drawLine(\n        ball.x + qq*Math.cos(angle), ball.y+ qq*Math.sin(angle), \n        (ball.x + qq*Math.cos(angle) + 10 * Math.cos(angle) * 10), (ball.y + qq*Math.sin(angle) + 10 * Math.sin(angle) * 10)\n    );\n    pen.color = \"red\";\n    pen.drawLine(\n        ball.x + qq*Math.cos(angle), ball.y+ qq*Math.sin(angle), \n        (ball.x+ qq*Math.cos(angle) + strength * Math.cos(angle) * strength), (ball.y+ qq*Math.sin(angle) + strength * Math.sin(angle) * strength)\n    );\n}","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":536,"hashid":"npmsmkv","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}

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