mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-06-27 09:35:29 +00:00
e4c84c4fb9
* Take directions in the range of 0-63 * Shift direction handling in animation further back * Don't need to get the DCC direction here. Because it was added to animation. * Check direction is within range
60 lines
2.5 KiB
Go
60 lines
2.5 KiB
Go
package d2dcc
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var crazyBitTable = []byte{0, 1, 2, 4, 6, 8, 10, 12, 14, 16, 20, 24, 26, 28, 30, 32}
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var pixelMaskLookup = []int{0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}
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// Direction lookup tables courtesy of necrolis
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var dir4 = []int{0x00, 0x00, 0x00, 0x00, 0x0, 0x00, 0x00, 0x00, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
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0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03,
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0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
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0x03, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
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var dir8 = []int{0x04, 0x04, 0x04, 0x04, 0x0, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x06, 0x06, 0x06,
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0x06, 0x06, 0x06, 0x06, 0x06, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
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0x02, 0x02, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x03,
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0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04}
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var dir16 = []int{0x04, 0x04, 0x08, 0x08, 0x8, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x09, 0x09, 0x09, 0x09, 0x05, 0x05, 0x05, 0x05, 0x0A, 0x0A,
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0x0A, 0x0A, 0x01, 0x01, 0x01, 0x01, 0x0B, 0x0B, 0x0B, 0x0B, 0x06,
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0x06, 0x06, 0x06, 0x0C, 0x0C, 0x0C, 0x0C, 0x02, 0x02, 0x02, 0x02,
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0x0D, 0x0D, 0x0D, 0x0D, 0x07, 0x07, 0x07, 0x07, 0x0E, 0x0E, 0x0E,
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0x0E, 0x03, 0x03, 0x03, 0x03, 0x0F, 0x0F, 0x0F, 0x0F, 0x04, 0x04}
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var dir32 = []int{0x04, 0x10, 0x10, 0x08, 0x8, 0x11, 0x11, 0x00, 0x00,
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0x12, 0x12, 0x09, 0x09, 0x13, 0x13, 0x05, 0x05, 0x14, 0x14, 0x0A,
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0x0A, 0x15, 0x15, 0x01, 0x01, 0x16, 0x16, 0x0B, 0x0B, 0x17, 0x17,
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0x06, 0x06, 0x18, 0x18, 0x0C, 0x0C, 0x19, 0x19, 0x02, 0x02, 0x1A,
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0x1A, 0x0D, 0x0D, 0x1B, 0x1B, 0x07, 0x07, 0x1C, 0x1C, 0x0E, 0x0E,
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0x1D, 0x1D, 0x03, 0x03, 0x1E, 0x1E, 0x0F, 0x0F, 0x1F, 0x1F, 0x04}
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// 64 direction assets don't actually exist? but here it is anyway.
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var dir64 = []int{0x04, 0x20, 0x10, 0x21, 0x8, 0x22, 0x11, 0x23, 0x00,
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0x24, 0x12, 0x25, 0x09, 0x26, 0x13, 0x27, 0x05, 0x28, 0x14, 0x29,
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0x0A, 0x2A, 0x15, 0x2B, 0x01, 0x2C, 0x16, 0x2D, 0x0B, 0x2E, 0x17,
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0x2F, 0x06, 0x30, 0x18, 0x31, 0x0C, 0x32, 0x19, 0x33, 0x02, 0x34,
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0x1A, 0x35, 0x0D, 0x36, 0x1B, 0x37, 0x07, 0x38, 0x1C, 0x39, 0x0E,
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0x3A, 0x1D, 0x3B, 0x03, 0x3C, 0x1E, 0x3D, 0x0F, 0x3E, 0x1F, 0x3F}
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func Dir64ToDcc(direction, numDirections int) int {
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switch numDirections {
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case 4:
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return dir4[direction]
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case 8:
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return dir8[direction]
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case 16:
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return dir16[direction]
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case 32:
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return dir32[direction]
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case 64:
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return dir64[direction]
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default:
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return 0
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}
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}
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