[81] | 1 | /* -*- coding: utf-8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2010 by Atzm WATANABE <atzm@atzm.org> |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify it |
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| 6 | * under the terms of the GNU General Public License (version 2) as |
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| 7 | * published by the Free Software Foundation. It is distributed in the |
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| 8 | * hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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| 9 | * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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| 10 | * PURPOSE. See the GNU General Public License for more details. |
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| 11 | * |
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| 12 | * $Id$ |
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| 13 | * |
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| 14 | */ |
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| 15 | |
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| 16 | System = { |
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| 17 | "screen": { |
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| 18 | "canvas": null, |
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| 19 | "ctx": null, |
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| 20 | "width": 0, |
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| 21 | "height": 0 |
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| 22 | }, |
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[84] | 23 | "message": null, |
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[108] | 24 | "enemies": new Array(), |
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| 25 | "players": new Array(), |
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[81] | 26 | "backgroundObject": new Array(), |
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[95] | 27 | "deathPieces": new Array(), |
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[81] | 28 | "mainIntervalId": 0 |
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| 29 | }; |
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| 30 | |
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| 31 | |
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| 32 | /* |
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[108] | 33 | * Tiun Tiun Utilities |
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[95] | 34 | */ |
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| 35 | var DeathPiece = function(sizes, colors, x, y, dir, speed) { |
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[106] | 36 | var that = new LinerBullet(sizes[0], colors[0], null, x, y, dir, speed); |
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[95] | 37 | |
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| 38 | var sizeIdx = -1; |
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| 39 | var colorIdx = -1; |
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| 40 | |
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| 41 | that.getSize = function() { |
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| 42 | if (++sizeIdx >= sizes.length) |
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| 43 | sizeIdx = 0; |
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| 44 | return sizes[sizeIdx]; |
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| 45 | }; |
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| 46 | |
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| 47 | that.getColor = function() { |
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| 48 | if (++colorIdx >= colors.length) |
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| 49 | colorIdx = 0; |
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| 50 | return colors[colorIdx]; |
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| 51 | }; |
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| 52 | |
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| 53 | return that; |
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| 54 | }; |
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| 55 | |
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[108] | 56 | function addDeathPieces(x, y, sizes, colors, speed, way) { |
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| 57 | if (way % 2) |
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| 58 | way++; |
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[95] | 59 | |
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[108] | 60 | var pieces = new Array(); |
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| 61 | var angle = 0; |
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| 62 | var delta = 2 / way; |
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| 63 | |
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| 64 | for(var i = 0; i < way; i++) { |
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| 65 | pieces.push(new DeathPiece(sizes, colors, x, y, angle * Math.PI, speed)); |
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| 66 | angle += delta; |
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| 67 | } |
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| 68 | |
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| 69 | System.deathPieces.push(pieces); |
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| 70 | } |
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| 71 | |
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| 72 | function updateDeathPieces(ctx, width, height) { |
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| 73 | var newObjs = new Array(); |
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| 74 | |
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| 75 | for (var i = 0; i < System.deathPieces.length; i++) { |
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| 76 | var pieces = System.deathPieces[i]; |
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| 77 | var newPieces = new Array(); |
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| 78 | |
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| 79 | for (var k = 0; k < pieces.length; k++) { |
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| 80 | pieces[k].next(); |
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| 81 | pieces[k].draw(ctx); |
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| 82 | if (!pieces[k].vanished(width, height)) |
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| 83 | newPieces.push(pieces[k]); |
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| 84 | } |
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| 85 | |
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| 86 | if (newPieces.length) |
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| 87 | newObjs.push(newPieces); |
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| 88 | } |
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| 89 | |
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| 90 | System.deathPieces = newObjs; |
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| 91 | } |
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| 92 | |
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| 93 | |
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[95] | 94 | /* |
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[81] | 95 | * Utility Functions |
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| 96 | */ |
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[108] | 97 | function setMessage(elem, msg) { |
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| 98 | if (elem) |
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| 99 | elem.innerHTML = msg; |
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| 100 | } |
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| 101 | |
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| 102 | function addMessage(elem, msg) { |
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| 103 | if (elem) |
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| 104 | elem.innerHTML += msg; |
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| 105 | } |
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| 106 | |
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[81] | 107 | function updateBackground(ctx, width, height, size, color, max) { |
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| 108 | if (System.backgroundObject.length < max) { |
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| 109 | var x = Math.ceil(Math.random() * width); |
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| 110 | var s = Math.ceil(Math.random() * 5); |
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| 111 | System.backgroundObject.push( |
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[106] | 112 | new LinerBullet(size, color, null, x, 0, 0.5 * Math.PI, s)); |
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[81] | 113 | } |
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| 114 | |
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| 115 | var newObjs = new Array(); |
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[108] | 116 | |
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[96] | 117 | for (var i = 0; i < System.backgroundObject.length; i++) { |
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[81] | 118 | System.backgroundObject[i].next(); |
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| 119 | System.backgroundObject[i].draw(ctx); |
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| 120 | if (!System.backgroundObject[i].vanished(width, height)) |
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| 121 | newObjs.push(System.backgroundObject[i]); |
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| 122 | } |
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[108] | 123 | |
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[81] | 124 | System.backgroundObject = newObjs; |
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| 125 | } |
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| 126 | |
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| 127 | function drawScreen(ctx, op, style, width, height) { |
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| 128 | var c = ctx.globalCompositeOperation; |
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| 129 | ctx.globalCompositeOperation = op; |
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| 130 | ctx.beginPath(); |
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| 131 | ctx.fillStyle = style; |
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| 132 | ctx.fillRect(0, 0, width, height); |
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| 133 | ctx.fill(); |
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| 134 | ctx.closePath(); |
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| 135 | ctx.globalCompositeOperation = c; |
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| 136 | } |
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| 137 | |
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| 138 | function drawLifeGauge(ctx, op, trooper, x, y, width) { |
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| 139 | var length = trooper.life; |
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| 140 | |
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| 141 | if (length > width - 20) |
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| 142 | length = width - 20; |
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| 143 | |
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| 144 | var c = ctx.globalCompositeOperation; |
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| 145 | ctx.globalCompositeOperation = op; |
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| 146 | ctx.beginPath(); |
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| 147 | ctx.fillStyle = trooper.color; |
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| 148 | ctx.fillRect(x, y, length, 10); |
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| 149 | ctx.fill(); |
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| 150 | ctx.closePath(); |
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| 151 | ctx.globalCompositeOperation = c; |
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| 152 | |
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| 153 | drawString(ctx, op, trooper.life, x + 2, y + 8, trooper.color, |
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| 154 | "6pt monospace", "left"); |
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| 155 | } |
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| 156 | |
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| 157 | function drawString(ctx, op, string, x, y, color, font, align) { |
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| 158 | var a = ctx.textAlign; |
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| 159 | var f = ctx.font; |
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| 160 | var c = ctx.globalCompositeOperation; |
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| 161 | ctx.globalCompositeOperation = op; |
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| 162 | ctx.beginPath(); |
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| 163 | ctx.textAlign = align; |
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| 164 | ctx.fillStyle = color; |
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| 165 | ctx.font = font; |
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| 166 | ctx.fillText(string, x, y); |
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| 167 | ctx.fill(); |
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| 168 | ctx.textAlign = a; |
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| 169 | ctx.font = f; |
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| 170 | ctx.closePath(); |
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| 171 | ctx.globalCompositeOperation = c; |
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| 172 | } |
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| 173 | |
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[108] | 174 | function updateTrooper(trooper, enemyKey) { |
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| 175 | trooper.update(System[enemyKey]); |
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[95] | 176 | |
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[108] | 177 | var aliveEnemies = new Array(); |
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| 178 | for (var i = 0; i < System[enemyKey].length; i++) { |
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| 179 | var enemy = System[enemyKey][i]; |
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| 180 | |
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| 181 | if (enemy.isDead()) { |
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| 182 | addDeathPieces( |
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| 183 | enemy.x, enemy.y, |
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| 184 | [6, 8, 10], ["#55F", "#AAF"], 3, 8 |
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| 185 | ); |
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| 186 | } |
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| 187 | else { |
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| 188 | aliveEnemies.push(enemy); |
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| 189 | } |
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[95] | 190 | } |
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[108] | 191 | System[enemyKey] = aliveEnemies; |
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[95] | 192 | |
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[108] | 193 | trooper.draw(System.screen.ctx); |
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| 194 | } |
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| 195 | |
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| 196 | function addEnemy(enemyData) { |
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| 197 | var actList = EnemyActionLists[enemyData.mtime % EnemyActionLists.length]; |
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| 198 | var shot = EnemyShots[enemyData.hitpoint % EnemyShots.length]; |
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| 199 | var numAct = enemyData.agility % (EnemyActions.length - 1) + 1; |
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| 200 | var numBlt = enemyData.skills.length % (EnemyBullets.length - 1) + 1; |
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| 201 | var numBrrg = enemyData.skills.length % (EnemyBarrages.length - 1) + 1; |
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| 202 | var acts = new Array(); |
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| 203 | var brrgs = new Array(); |
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| 204 | |
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| 205 | var bulletWay = Math.ceil(enemyData.concentration / 10); |
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| 206 | var bulletInterval = Math.round(50 * 1 / Math.log(enemyData.skillpoint + 0.1)); |
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| 207 | var bulletSize = Math.round(Math.log(enemyData.luck + 1)); |
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| 208 | var bulletFrameWidth = (bulletSize + 5) * 2; |
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| 209 | var bulletFrameHeight = (bulletSize + 5) * 4; |
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| 210 | var bulletSpeed = enemyData.strength / 15; |
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| 211 | |
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| 212 | bulletSpeed = Math.log(bulletSpeed < 1.5 ? 1.5 : bulletSpeed); |
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| 213 | |
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| 214 | for (var i = 0; i < numAct; i++) { |
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| 215 | var idx = (enemyData.agility + i) % EnemyActions.length; |
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| 216 | acts.push(new EnemyActions[idx](new shot())); |
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[95] | 217 | } |
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[108] | 218 | |
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| 219 | for (var i = 0; i < numBrrg; i++) { |
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| 220 | var idx = (enemyData.skillpoint + i * (enemyData.skills.length + 1)) % EnemyBarrages.length; |
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| 221 | var brrgCls = EnemyBarrages[idx]; |
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| 222 | |
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| 223 | for (var k = 0; k < numBlt; k++) { |
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| 224 | var iidx = (enemyData.skills.length + i + k) % EnemyBullets.length; |
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| 225 | brrgs.push( |
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| 226 | new brrgCls( |
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| 227 | EnemyBullets[iidx], |
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| 228 | bulletSize, |
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| 229 | "#FF3", |
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| 230 | {"style": "rect", "color": "rgba(128,32,32,0.5)", |
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| 231 | "width": bulletFrameWidth, "height": bulletFrameHeight}, |
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| 232 | bulletInterval, |
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| 233 | bulletSpeed, |
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| 234 | bulletWay |
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| 235 | ) |
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| 236 | ); |
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| 237 | } |
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[95] | 238 | } |
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| 239 | |
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[108] | 240 | var size = Math.ceil((System.screen.width / 2) * (1 / enemyData.defense)); |
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| 241 | var enemy = new Trooper( |
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| 242 | enemyData.name, |
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| 243 | new actList(acts), |
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| 244 | size, |
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| 245 | size, |
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| 246 | "#F33", |
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| 247 | "#F33", |
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| 248 | System.screen.width / 2, |
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| 249 | System.screen.height / 7, |
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| 250 | System.screen.width, |
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| 251 | System.screen.height, |
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| 252 | enemyData.hitpoint, |
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| 253 | Math.log(enemyData.agility + 0.1) * 3, |
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| 254 | 0, |
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| 255 | ["rgba(255,0,0,0.3)", "rgba(0,0,255,0.3)"], |
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| 256 | brrgs |
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| 257 | ); |
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[81] | 258 | |
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[108] | 259 | System.enemies.push(enemy); |
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[84] | 260 | } |
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| 261 | |
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| 262 | |
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[81] | 263 | /* |
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| 264 | * Main loop |
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| 265 | */ |
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| 266 | function mainLoop() { |
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| 267 | // clear screen |
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| 268 | drawScreen( |
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| 269 | System.screen.ctx, |
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| 270 | "source-over", |
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[106] | 271 | "rgba(8,8,8,0.8)", |
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[81] | 272 | System.screen.width, |
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| 273 | System.screen.height |
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| 274 | ); |
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| 275 | |
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| 276 | // update background objects |
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| 277 | updateBackground( |
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| 278 | System.screen.ctx, |
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| 279 | System.screen.width, |
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| 280 | System.screen.height, |
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| 281 | 1, "#CAF", 10 |
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| 282 | ); |
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| 283 | |
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[95] | 284 | // update/draw troopers |
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[108] | 285 | for (var i = 0; i < System.players.length; i++) { |
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| 286 | var player = System.players[i]; |
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[81] | 287 | |
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[108] | 288 | updateTrooper(player, "enemies"); |
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[81] | 289 | |
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[108] | 290 | drawLifeGauge( |
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| 291 | System.screen.ctx, |
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| 292 | "lighter", |
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| 293 | player, |
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| 294 | 10, |
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| 295 | (System.screen.height - 20) - (i * 33), |
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| 296 | System.screen.width |
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| 297 | ); |
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| 298 | |
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| 299 | drawString( |
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| 300 | System.screen.ctx, |
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| 301 | "source-over", |
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| 302 | player.name, |
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| 303 | 10, |
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| 304 | (System.screen.height - 23) - (i * 33), |
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| 305 | "#ACF", "9pt monospace", "left" |
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| 306 | ); |
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| 307 | } |
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| 308 | |
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| 309 | // update/draw enemies |
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| 310 | for (var i = 0; i < System.enemies.length; i++) { |
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| 311 | var enemy = System.enemies[i]; |
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| 312 | |
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| 313 | updateTrooper(enemy, "players"); |
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| 314 | |
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| 315 | drawLifeGauge( |
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| 316 | System.screen.ctx, |
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| 317 | "lighter", |
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| 318 | enemy, 10, i * 33 + 10, |
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| 319 | System.screen.width |
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| 320 | ); |
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| 321 | |
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| 322 | drawString( |
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| 323 | System.screen.ctx, |
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| 324 | "source-over", |
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| 325 | enemy.name, 10, i * 33 + 33, |
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| 326 | "#FCA", "9pt monospace", "left" |
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| 327 | ); |
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| 328 | } |
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| 329 | |
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| 330 | updateDeathPieces(System.screen.ctx, |
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| 331 | System.screen.width, |
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| 332 | System.screen.height); |
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| 333 | |
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| 334 | if (!System.players.length) { |
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| 335 | drawString( |
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| 336 | System.screen.ctx, "source-over", |
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| 337 | "GAME OVER", |
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| 338 | System.screen.width / 2, |
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| 339 | System.screen.height / 2, |
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| 340 | "#ACF", "24pt monospace", "center" |
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| 341 | ); |
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| 342 | } |
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[81] | 343 | } |
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| 344 | |
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| 345 | |
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| 346 | /* |
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| 347 | * Initializer |
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| 348 | */ |
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[108] | 349 | function initGame(canvas, msg, playerData) { |
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[81] | 350 | System.screen.canvas = canvas; |
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[84] | 351 | System.message = msg; |
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[81] | 352 | System.screen.ctx = System.screen.canvas.getContext("2d"); |
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| 353 | System.screen.width = System.screen.canvas.width; |
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| 354 | System.screen.height = System.screen.canvas.height; |
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[95] | 355 | System.gameOver = false; |
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[81] | 356 | |
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| 357 | System.screen.ctx.globalCompositeOperation = "lighter"; |
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| 358 | |
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| 359 | if (System.mainIntervalId) { |
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| 360 | clearInterval(System.mainIntervalId); |
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| 361 | System.mainIntervalId = 0; |
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| 362 | } |
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| 363 | |
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| 364 | drawScreen( |
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| 365 | System.screen.ctx, |
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| 366 | "source-over", |
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| 367 | "rgba(0,0,0,1)", |
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| 368 | System.screen.width, |
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| 369 | System.screen.height |
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| 370 | ); |
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| 371 | |
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[108] | 372 | System.players.push(new Trooper( |
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[81] | 373 | playerData.name, |
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| 374 | new ActionList([new ManualAction(new ManualShot())]), |
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| 375 | playerData.size, |
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[97] | 376 | playerData.hitsize, |
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[81] | 377 | "#33F", |
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[97] | 378 | "#F33", |
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[81] | 379 | System.screen.width / 2, |
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| 380 | System.screen.height - System.screen.height / 7, |
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| 381 | System.screen.width, |
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| 382 | System.screen.height, |
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| 383 | playerData.hitpoint, |
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| 384 | playerData.speed, |
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[92] | 385 | playerData.numbombs, |
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[98] | 386 | ["rgba(255,0,0,0.3)", "rgba(0,0,255,0.3)"], |
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[81] | 387 | [new LinerBarrage(YExtendBullet, |
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| 388 | playerData.shotsize, |
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[106] | 389 | "rgba(64,64,128,0.7)", |
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| 390 | null, |
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[81] | 391 | playerData.shotinterval, |
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| 392 | playerData.shotspeed, |
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| 393 | playerData.shotlevel, |
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| 394 | -0.5), |
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| 395 | new LinerBarrage(YExtendBullet, |
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| 396 | playerData.shotsize, |
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[106] | 397 | "rgba(64,64,128,0.7)", |
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| 398 | null, |
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[81] | 399 | playerData.shotinterval, |
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| 400 | playerData.shotspeed, |
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| 401 | playerData.shotlevel, |
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| 402 | 0.5), |
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| 403 | new CircularBarrage(LinerBullet, |
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| 404 | playerData.shotsize, |
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[106] | 405 | "rgba(64,64,128,0.7)", |
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| 406 | null, |
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[81] | 407 | playerData.shotinterval, |
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| 408 | playerData.shotspeed, |
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| 409 | playerData.shotlevel + 2, |
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| 410 | -0.5)] |
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[108] | 411 | )); |
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[81] | 412 | |
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| 413 | System.backgroundObject = new Array(); |
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| 414 | System.mainIntervalId = setInterval(mainLoop, 20); |
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| 415 | } |
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