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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | 3x 3x 3x 3x 3x 3x 3x 3x 3x 3584x 3584x 1969x 1615x 336x 1279x 3x 30x 30x 30x 30x 384x 3072x 3072x 3072x 3072x 3072x 192x 2880x 368x 30x 3x 30x 30x 30x 30x 384x 3072x 3072x 3072x 3072x 30x 3x 37x 37x 1190x 33x 4x 3x 30x 288x 28x 2x 3x 4x 4x 448x 96x 4x 3x 37x 37x 2368x 208x 37x 3x 13x 13x 13x 104x 104x 104x 832x 832x 832x 832x 104x 104x 104x 104x 13x 13x 832x 208x | import {
cloneIndexedImage,
ImageIndexFunction,
IndexedImage,
toIndex,
} from "shared/lib/tiles/indexedImage";
export type OptimisedTile = {
tile: number;
flipX: boolean;
flipY: boolean;
};
enum Color {
Transparent = 0,
Light = 1,
Mid = 2,
Dark = 3,
Divider = 254,
Unknown = 255,
}
export const spriteDataIndexFn: ImageIndexFunction = (r, g, b, _a) => {
Iif ((g > 249 && r < 180 && b < 20) || (b >= 200 && g < 20) || _a < 200) {
return Color.Transparent;
} else if (g >= 205) {
return Color.Light;
} else if (g >= 130) {
return Color.Mid;
} else {
return Color.Dark;
}
};
export const removeIndexedImageMask = (
inData: IndexedImage,
maskData: IndexedImage,
offsetX: number,
offsetY: number,
): IndexedImage => {
const output = cloneIndexedImage(inData);
const inWidth = inData.width;
const inHeight = inData.height;
for (let y = 0; y < inHeight; y++) {
for (let x = 0; x < inWidth; x++) {
const drawIndex = toIndex(x, y, inData);
const maskIndex = toIndex(x + offsetX, y + offsetY, maskData);
const maskX = x + offsetX;
const maskY = y + offsetY;
if (
maskX < 0 ||
maskY < 0 ||
maskX >= maskData.width ||
maskY >= maskData.height
) {
// Mark tile data outside of canvas bounds as unknown
output.data[drawIndex] = Color.Unknown;
} else if (maskData.data[maskIndex] !== Color.Transparent) {
// Mark occluded tile data as unknown
output.data[drawIndex] = Color.Unknown;
}
}
}
return output;
};
export const blitIndexedImageData = (
canvasData: IndexedImage,
inData: IndexedImage,
offsetX: number,
offsetY: number,
): IndexedImage => {
const output = cloneIndexedImage(canvasData);
const drawWidth = inData.width;
const drawHeight = inData.height;
for (let y = 0; y < drawHeight; y++) {
for (let x = 0; x < drawWidth; x++) {
const drawIndex = toIndex(x, y, inData);
if (inData.data[drawIndex] !== Color.Transparent) {
const canvasIndex = toIndex(x + offsetX, y + offsetY, canvasData);
output.data[canvasIndex] = inData.data[drawIndex];
}
}
}
return output;
};
export const isIndexedImageEqual = (
dataA: IndexedImage,
dataB: IndexedImage,
): boolean => {
Iif (
dataA.width !== dataB.width ||
dataA.height !== dataB.height ||
dataA.data.length !== dataB.data.length
) {
return false;
}
for (let i = 0; i < dataA.data.length; i++) {
if (
dataA.data[i] !== dataB.data[i] &&
dataA.data[i] !== Color.Unknown &&
dataB.data[i] !== Color.Unknown
) {
return false;
}
}
return true;
};
export const isBlankIndexedImage = (image: IndexedImage): boolean => {
for (let i = 0; i < image.data.length; i++) {
if (
image.data[i] !== Color.Transparent &&
image.data[i] !== Color.Unknown
) {
return false;
}
}
return true;
};
export const mergeIndexedImages = (
dataA: IndexedImage,
dataB: IndexedImage,
): IndexedImage => {
const output = cloneIndexedImage(dataA);
for (let i = 0; i < output.data.length; i++) {
if (output.data[i] === Color.Unknown) {
output.data[i] = dataB.data[i];
}
}
return output;
};
export const indexedUnknownToTransparent = (
inData: IndexedImage,
): IndexedImage => {
const output = cloneIndexedImage(inData);
for (let i = 0; i < output.data.length; i++) {
if (output.data[i] === Color.Unknown) {
output.data[i] = Color.Transparent;
}
}
return output;
};
// ------------
// To 2bpp
export const indexedImageTo2bppSpriteData = (
image: IndexedImage,
): Uint8Array => {
const output = new Uint8Array(roundUp8((image.width * image.height) / 4));
let i = 0;
for (let y = 0; y < 8; y++) {
let row1 = "";
let row2 = "";
for (let x = 0; x < 8; x++) {
const index = toIndex(x, y, image);
const binary = bin2(image.data[index]);
row1 += binary[1];
row2 += binary[0];
}
output[i] = binDec(row1);
i++;
output[i] = binDec(row2);
i++;
}
return output;
};
// ------------
const roundUp8 = (x: number): number => Math.ceil(x / 8) * 8;
const bin2 = (value: Color) => value.toString(2).padStart(2, "0");
const binDec = (binary: string) => parseInt(binary, 2);
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