8bitworkshop/gen/galaxian-KKUCSTLZ.js.map

{
  "version": 3,
  "sources": ["../src/machine/galaxian.ts", "../src/platform/galaxian.ts"],
  "sourcesContent": ["\nimport { Z80, Z80State } from \"../common/cpu/ZilogZ80\";\nimport { BasicScanlineMachine } from \"../common/devices\";\nimport { KeyFlags, newAddressDecoder, padBytes, noise, Keys, makeKeycodeMap, newKeyboardHandler, EmuHalt } from \"../common/emu\";\nimport { TssChannelAdapter, MasterAudio, AY38910_Audio } from \"../common/audio\";\nimport { hex } from \"../common/util\";\n\nconst GALAXIAN_KEYCODE_MAP = makeKeycodeMap([\n    [Keys.A, 0, 0x10], // P1\n    [Keys.LEFT, 0, 0x4],\n    [Keys.RIGHT, 0, 0x8],\n    [Keys.P2_A, 1, 0x10], // P2\n    [Keys.P2_LEFT, 1, 0x4],\n    [Keys.P2_RIGHT, 1, 0x8],\n    [Keys.SELECT, 0, 0x1],\n    [Keys.START, 1, 0x1],\n    [Keys.VK_2, 1, 0x2],\n]);\n\nconst SCRAMBLE_KEYCODE_MAP = makeKeycodeMap([\n    [Keys.UP, 0, -0x1], // P1\n    [Keys.B, 0, -0x2], // fire\n    [Keys.VK_7, 0, -0x4], // credit\n    [Keys.A, 0, -0x8], // bomb\n    [Keys.RIGHT, 0, -0x10],\n    [Keys.LEFT, 0, -0x20],\n    [Keys.VK_6, 0, -0x40],\n    [Keys.SELECT, 0, -0x80],\n    [Keys.START, 1, -0x80],\n    [Keys.VK_2, 1, -0x40],\n    [Keys.DOWN, 2, -0x40],\n    //[Keys.VK_UP,    2, -0x10],\n]);\n\nconst bitcolors = [\n    0x000021, 0x000047, 0x000097, // red\n    0x002100, 0x004700, 0x009700, // green\n    0x510000, 0xae0000            // blue\n];\n\nconst GalaxianVideo = function (rom: Uint8Array, vram: Uint8Array, oram: Uint8Array, palette: Uint32Array, options) {\n\n    var gfxBase = options.gfxBase || 0x2800;\n    this.missileWidth = options.missileWidth || 4;\n    this.missileOffset = options.missileOffset || 0;\n    this.showOffscreenObjects = false;\n    this.frameCounter = 0;\n    this.starsEnabled = 0;\n    var stars = [];\n    for (var i = 0; i < 256; i++)\n        stars[i] = noise();\n\n    this.advanceFrame = function () {\n        this.frameCounter = (this.frameCounter + 1) & 0xff;\n    }\n\n    this.drawScanline = function (pixels, sl) {\n        var pixofs = sl * 264;\n        // hide offscreen on left + right (b/c rotated)\n        if (!this.showOffscreenObjects && (sl < 16 || sl >= 240)) {\n            for (var i = 0; i < 264; i++)\n                pixels[pixofs + i] = 0xff000000;\n            return; // offscreen\n        }\n        // draw tiles\n        var outi = pixofs; // starting output pixel in frame buffer\n        for (var xx = 0; xx < 32; xx++) {\n            var xofs = xx;\n            var scroll = oram[xofs * 2]; // even entries control scroll position\n            var attrib = oram[xofs * 2 + 1]; // odd entries control the color base\n            var sl2 = (sl + scroll) & 0xff;\n            var vramofs = (sl2 >> 3) << 5; // offset in VRAM\n            var yy = sl2 & 7; // y offset within tile\n            var tile = vram[vramofs + xofs]; // TODO: why undefined?\n            var color0 = (attrib & 7) << 2;\n            var addr = gfxBase + (tile << 3) + yy;\n            var data1 = rom[addr];\n            var data2 = rom[addr + 0x800];\n            for (var i = 0; i < 8; i++) {\n                var bm = 128 >> i;\n                var color = color0 + ((data1 & bm) ? 1 : 0) + ((data2 & bm) ? 2 : 0);\n                pixels[outi] = palette[color];\n                outi++;\n            }\n        }\n        // draw sprites\n        for (var sprnum = 7; sprnum >= 0; sprnum--) {\n            var base = (sprnum << 2) + 0x40;\n            var base0 = oram[base];\n            var sy = 240 - (base0 - ((sprnum < 3) ? 1 : 0)); // the first three sprites match against y-1\n            var yy = (sl - sy);\n            if (yy >= 0 && yy < 16) {\n                var sx = oram[base + 3] + 1; // +1 pixel offset from tiles\n                if (sx == 0 && !this.showOffscreenObjects) {\n                    continue; // drawn off-buffer\n                }\n                var code = oram[base + 1];\n                var flipx = code & 0x40; // TODO: flipx\n                if (code & 0x80) // flipy\n                    yy = 15 - yy;\n                code &= 0x3f;\n                var color0 = (oram[base + 2] & 7) << 2;\n                var addr = gfxBase + (code << 5) + (yy < 8 ? yy : yy + 8);\n
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