[bb] Calc terrain height - Ideal for terrain tool by KimoTech [ 1+ years ago ]

[BlitzBot]

Title : Calc terrain height - Ideal for terrain tool
Author : KimoTech
Posted : 1+ years ago

Description : Uses Cos#() to calc the vertex/terrain height for ex. a mountain. Ideal if u want to make a terrain tool for modifying the terrain with smooth mountains.

Code :

Code: BlitzBasic

1. ;GetHeight#( center x of mountain, center z of mountain, vertex/terrain-seg x to calc, vertex/terrain-seg z to calc, mountain radius )
2.  
3. Function GetHeight#(cx#,cz#,px#,pz#,r#)
4. If PointDistance#(cx#,0,cz#,px#,0,pz#)<r# Then Return -Cos#(( PointDistance#(cx#,0,cz#,px#,0,pz#) / r#)*180)-1
5. End Function
6.  
7. Function PointDistance#(X1#,Y1#,Z1#,X2#,Y2#,Z2#)
8. dx# = X1 - X2:dy# = Y1 - Y2:dz# = Z1 - Z2
9. Return Sqr(dx*dx + dy*dy + dz*dz)
10. End Function
11.  
12.  
13. ;Example:
14.  
15. Graphics 800,600
16.  
17. Repeat
18. Cls
19. For z=0 To 600
20. Plot z,GetHeight(200,0,z,0,300)*MouseZ()+400
21. Next
22.  
23. Flip
24. Until KeyHit(1)
25. End

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