Differential D1763 Diff 7619 source/tools/atlas/GameInterface/Handlers/ElevationHandlers.cpp

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source/tools/atlas/GameInterface/Handlers/ElevationHandlers.cpp

/* Copyright (C) 2012 Wildfire Games.		/* Copyright (C) 2019 Wildfire Games.
* This file is part of 0 A.D.		* This file is part of 0 A.D.
*		*
* 0 A.D. is free software: you can redistribute it and/or modify		* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by		* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or		* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.		* (at your option) any later version.
*		*
* 0 A.D. is distributed in the hope that it will be useful,		* 0 A.D. is distributed in the hope that it will be useful,
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#include "maths/MathUtil.h"		#include "maths/MathUtil.h"
#include "graphics/RenderableObject.h"		#include "graphics/RenderableObject.h"
#include "simulation2/Simulation2.h"		#include "simulation2/Simulation2.h"
#include "simulation2/components/ICmpTerrain.h"		#include "simulation2/components/ICmpTerrain.h"

#include "../Brushes.h"		#include "../Brushes.h"
#include "../DeltaArray.h"		#include "../DeltaArray.h"

		#include <limits>

namespace AtlasMessage {		namespace AtlasMessage {

class TerrainArray : public DeltaArray2D<u16>		class TerrainArray : public DeltaArray2D<u16>
{		{
public:		public:
void Init()		void Init()
{		{
m_Heightmap = g_Game->GetWorld()->GetTerrain()->GetHeightMap();		m_Heightmap = g_Game->GetWorld()->GetTerrain()->GetHeightMap();
m_VertsPerSide = g_Game->GetWorld()->GetTerrain()->GetVerticesPerSide();		m_VertsPerSide = g_Game->GetWorld()->GetTerrain()->GetVerticesPerSide();
}		}

void RaiseVertex(ssize_t x, ssize_t y, int amount)		void RaiseVertex(ssize_t x, ssize_t y, int amount)
{		{
// Ignore out-of-bounds vertices		// Ignore out-of-bounds vertices
if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))		if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))
return;		return;

set(x,y, (u16)clamp(get(x,y) + amount, 0, 65535));		set(x, y, static_cast<u16>(Clamp<int>(get(x,y) + amount, 0, std::numeric_limits<u16>::max())));
		StanUnsubmitted Not Done Inline Actions static_cast Stan: static_cast
		elexisUnsubmitted Not Done Inline Actions numeric_limit for that 2^16? elexis: numeric_limit for that 2^16?
		StanUnsubmitted Not Done Inline Actions Yeah would be nice. Same below. Stan: Yeah would be nice. Same below.
		vladislavbelovAuthorUnsubmitted Done Inline Actions It'd be good if you test that the `std::numeric_limits<u16>::max()` is correct for you. vladislavbelov: It'd be good if you test that the `std::numeric_limits<u16>::max()` is correct for you.
		StanUnsubmitted Not Done Inline Actions in source\lib\types.h typedef uint8_t u8; typedef uint16_t u16; typedef uint32_t u32; typedef uint64_t u64; MSVC c:\Users\dolci\Desktop>cl.exe fine.cpp /EHsc c:\Users\dolci\Desktop>fine.exe std::numeric_limits<u16>::max(): 65535 MINGW c:\Users\dolci\Desktop>mingw32-g++ fine.cpp c:\Users\dolci\Desktop>a.exe std::numeric_limits<u16>::max(): 65535 Stan: in source\lib\types.h ```lang=cpp typedef uint8_t u8; typedef uint16_t u16; typedef…
		StanUnsubmitted Done Inline Actions Why not clamp<u16> ? Stan: Why not clamp<u16> ?
		vladislavbelovAuthorUnsubmitted Done Inline Actions Because you clamping a number more than maximum possible value of `u16`. If we don't use a bigger type (like `int`) here, we get an integer overflow. vladislavbelov: Because you clamping a number more than maximum possible value of `u16`. If we don't use a…
}		}

void MoveVertexTowards(ssize_t x, ssize_t y, int target, int amount)		void MoveVertexTowards(ssize_t x, ssize_t y, int target, int amount)
{		{
if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))		if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))
return;		return;

int h = get(x,y);		int h = get(x,y);
if (h < target)		if (h < target)
h = std::min(target, h + amount);		h = std::min(target, h + amount);
else if (h > target)		else if (h > target)
h = std::max(target, h - amount);		h = std::max(target, h - amount);
else		else
return;		return;

set(x,y, (u16)clamp(h, 0, 65535));		set(x, y, static_cast<u16>(Clamp<int>(h, 0, std::numeric_limits<u16>::max())));
		StanUnsubmitted Not Done Inline Actions static_cast Stan: static_cast
		StanUnsubmitted Done Inline Actions Why not clamp<u16> ? Stan: Why not clamp<u16> ?
}		}

void SetVertex(ssize_t x, ssize_t y, u16 value)		void SetVertex(ssize_t x, ssize_t y, u16 value)
{		{
if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))		if (size_t(x) >= size_t(m_VertsPerSide) \|\| size_t(y) >= size_t(m_VertsPerSide))
return;		return;

set(x,y, value);		set(x, y, value);
}		}

u16 GetVertex(ssize_t x, ssize_t y)		u16 GetVertex(ssize_t x, ssize_t y)
{		{
return get(clamp(x, ssize_t(0), ssize_t(m_VertsPerSide-1)), clamp(y, ssize_t(0), ssize_t(m_VertsPerSide-1)));		return get(Clamp(x, static_cast<ssize_t>(0), ssize_t(m_VertsPerSide - 1)), Clamp(y, static_cast<ssize_t>(0), ssize_t(m_VertsPerSide - 1)));
		StanUnsubmitted Not Done Inline Actions static_cast Stan: static_cast
}		}

protected:		protected:
u16 getOld(ssize_t x, ssize_t y)		u16 getOld(ssize_t x, ssize_t y)
{		{
return m_Heightmap[y*m_VertsPerSide + x];		return m_Heightmap[y*m_VertsPerSide + x];
}		}
void setNew(ssize_t x, ssize_t y, const u16& val)		void setNew(ssize_t x, ssize_t y, const u16& val)
▲ Show 20 Lines • Show All 319 Lines • ▼ Show 20 Lines	void Do()
{		{
for (ssize_t dx = 0; dx < g_CurrentBrush.m_W; ++dx)		for (ssize_t dx = 0; dx < g_CurrentBrush.m_W; ++dx)
{		{
float b = g_CurrentBrush.Get(dx, dy);		float b = g_CurrentBrush.Get(dx, dy);
if (b)		if (b)
{		{
float x = (float)dx - ((float)g_CurrentBrush.m_H - 1) / 2.f;		float x = (float)dx - ((float)g_CurrentBrush.m_H - 1) / 2.f;
float y = (float)dy - ((float)g_CurrentBrush.m_W - 1) / 2.f;		float y = (float)dy - ((float)g_CurrentBrush.m_W - 1) / 2.f;
float distance = clamp(1 - (float)sqrt(x * x + y * y) / h, 0.01f, 1.0f);		float distance = Clamp(1.0f - sqrtf(x * x + y * y) / h, 0.01f, 1.0f);
		StanUnsubmitted Not Done Inline Actions static_cast Stan: static_cast
distance *= distance;		distance *= distance;
m_TerrainDelta.RaiseVertex(x0 + dx, y0 + dy, (int)(amount * distance));		m_TerrainDelta.RaiseVertex(x0 + dx, y0 + dy, (int)(amount * distance));
}		}
}		}
}		}
m_i0 = x0 - 1;		m_i0 = x0 - 1;
m_j0 = y0 - 1;		m_j0 = y0 - 1;
m_i1 = x0 + g_CurrentBrush.m_W;		m_i1 = x0 + g_CurrentBrush.m_W;
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