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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "HoverMoveMath.h"
#include "Map/ReadMap.h"
#include "Sim/Objects/SolidObject.h"
#include "Map/Ground.h"
CR_BIND_DERIVED(CHoverMoveMath, CMoveMath, );
bool CHoverMoveMath::noWaterMove = false;
/*
Calculate speed-multiplier for given height and slope data.
*/
float CHoverMoveMath::SpeedMod(const MoveData& moveData, float height, float slope) const
{
// no speed-penalty if on water (unless noWaterMove)
if (height < 0.0f) {
return (noWaterMove? 0.0f: 1.0f);
}
if (slope > moveData.maxSlope)
return 0.0f;
return (1.0f / (1.0f + slope * moveData.slopeMod));
}
float CHoverMoveMath::SpeedMod(const MoveData& moveData, float height, float slope, float moveSlope) const
{
// no speed-penalty if on water
if (height < 0.0f)
return 1.0f;
if ((slope * moveSlope) > moveData.maxSlope)
return 0.0f;
return (1.0f / (1.0f + std::max(0.0f, slope * moveSlope) * moveData.slopeMod));
}
/*
Gives a position slightly over ground and water level.
*/
float CHoverMoveMath::yLevel(int xSquare, int zSquare) const
{
return (ground->GetHeightAboveWater(xSquare * SQUARE_SIZE, zSquare * SQUARE_SIZE) + 10.0f);
}
float CHoverMoveMath::yLevel(const float3& pos) const
{
return (ground->GetHeightAboveWater(pos.x, pos.z) + 10.0f);
}
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