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Defines |
| #define | PA_Cos(angle) PA_SIN[((angle) + 128)&511] |
| | Returns the Cos value for an angle. The value goes from -256 to 256... Watch out though : the angle is not in 360 degrees, but in 512 !
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| #define | PA_Sin(angle) PA_SIN[((angle))&511] |
| | Returns the Sin value for an angle. The value goes from -256 to 256... Watch out though : the angle is not in 360 degrees, but in 256 !
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Functions |
| u32 | PA_Rand (void) |
| | Gives a random number, taken from Ham... This is taken from Ham, I have no credit.
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| void | PA_InitRand (void) |
| | Auto-seeds the Rand function based on the clock !
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| void | PA_SRand (s32 r) |
| | Set the random's seed. This is taken from Ham, I have no credit. I just made it a little shorter/faster (maybe)
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| u32 | PA_RandMax (u32 max) |
| | Gives a random number, between 0 and the given number (included)
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| u32 | PA_RandMinMax (u32 min, u32 max) |
| | Gives a random number, between the 2 given numbers (included)
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| u64 | PA_Distance (s32 x1, s32 y1, s32 x2, s32 y2) |
| | Calculate the distance (squared) between 2 points
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| u64 | PA_TrueDistance (s32 x1, s32 y1, s32 x2, s32 y2) |
| | Calculate the real distance between 2 points. Much slower than PA_Distance
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| u16 | PA_AdjustAngle (u16 angle, s16 anglerot, s32 startx, s32 starty, s32 targetx, s32 targety) |
| | Adjust an angle, for example to calculate in which direction an object shoudl turn
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| u16 | PA_GetAngle (s32 startx, s32 starty, s32 targetx, s32 targety) |
| | Get the angle, from 0 to 511, formed between the horizontal and the line
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