102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
#include <cassert>
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float slope_height_offset(unsigned char slope_type, float dx, float dz) {
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assert((dx >= 0.0f) && (dx <= 1.0f));
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assert((dz >= 0.0f) && (dz <= 1.0f));
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switch(slope_type) {
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case 0:
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return 1.0f;
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case 1:
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return 0.500000f - dz * 0.500000f;
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case 2:
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return 1.000000f - dz * 0.500000f;
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case 3:
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return 0.000000f + dz * 0.500000f;
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case 4:
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return 0.500000f + dz * 0.500000f;
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case 5:
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return 0.500000f - dx * 0.500000f;
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case 6:
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return 1.000000f - dx * 0.500000f;
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case 7:
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return 0.000000f + dx * 0.500000f;
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case 8:
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return 0.500000f + dx * 0.500000f;
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case 9:
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return 0.130000f - dz * 0.130000f;
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case 10:
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return 0.250000f - dz * 0.120000f;
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case 11:
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return 0.380000f - dz * 0.130000f;
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case 12:
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return 0.500000f - dz * 0.120000f;
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case 13:
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return 0.630000f - dz * 0.130000f;
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case 14:
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return 0.750000f - dz * 0.120000f;
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case 15:
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return 0.880000f - dz * 0.130000f;
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case 16:
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return 1.000000f - dz * 0.120000f;
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case 17:
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return 0.000000f + dz * 0.130000f;
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case 18:
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return 0.130000f + dz * 0.120000f;
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case 19:
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return 0.250000f + dz * 0.130000f;
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case 20:
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return 0.380000f + dz * 0.120000f;
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case 21:
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return 0.500000f + dz * 0.130000f;
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case 22:
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return 0.630000f + dz * 0.120000f;
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case 23:
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return 0.750000f + dz * 0.130000f;
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case 24:
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return 0.880000f + dz * 0.120000f;
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case 25:
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return 0.130000f - dx * 0.130000f;
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case 26:
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return 0.250000f - dx * 0.120000f;
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case 27:
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return 0.380000f - dx * 0.130000f;
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case 28:
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return 0.500000f - dx * 0.120000f;
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case 29:
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return 0.630000f - dx * 0.130000f;
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case 30:
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return 0.750000f - dx * 0.120000f;
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case 31:
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return 0.880000f - dx * 0.130000f;
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case 32:
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return 1.000000f - dx * 0.120000f;
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case 33:
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return 0.000000f + dx * 0.130000f;
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case 34:
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return 0.130000f + dx * 0.120000f;
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case 35:
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return 0.250000f + dx * 0.130000f;
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case 36:
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return 0.380000f + dx * 0.120000f;
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case 37:
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return 0.500000f + dx * 0.130000f;
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case 38:
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return 0.630000f + dx * 0.120000f;
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case 39:
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return 0.750000f + dx * 0.130000f;
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case 40:
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return 0.880000f + dx * 0.120000f;
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case 41:
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return 1.000000f - dz * 1.000000f;
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case 42:
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return 0.000000f + dz * 1.000000f;
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case 43:
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return 1.000000f - dx * 1.000000f;
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case 44:
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return 0.000000f + dx * 1.000000f;
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default:
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break;
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}
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assert(0);
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return 0.0f; // should never be reached
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}
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