Water Class Reference

#include <water.h>

Collaboration diagram for Water:

[legend]List of all members.

Public Member Functions
void	Init ()
void	Reset ()
void	Free ()
void	Refresh ()
void	Draw ()
bool	IsActive ()
int	GetHeight (int x)
Private Attributes
uint	temps_eau
int	height_mvt
int	vague
bool	actif
double	shift1
uint	hauteur_eau
uint	temps_montee
std::vector< int >	height
Surface	surface
Surface	pattern

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Detailed Description

Definition at line 31 of file water.h.

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Member Function Documentation

void Water::Draw

(

)

Definition at line 127 of file water.cpp.

                {
  if (!actif)
    return;

  // Compute 1 pattern:
  pattern.SetAlpha( 0, 0);
  pattern.Fill(0x00000000);

  int y0 = world.GetHeight()-(hauteur_eau + height_mvt)-20;

  for(uint x=0; x<180; x++){
    Point2i dst(x, height.at(x) - y0);
    pattern.Blit(surface, dst);
  }
  pattern.SetAlpha(SDL_SRCALPHA, 0);

  int x0 = camera.GetPosition().x;
  while(x0<0)
    x0+=180;
  while(x0>180)
    x0-=180;

  for(int x=camera.GetPosition().x-x0; x<camera.GetPosition().x+camera.GetSize().x; x+=180)
    for(int y=y0; y<(int)camera.GetPosition().y+(int)camera.GetSize().y; y+=surface.GetSize().y)
      AbsoluteDraw(pattern, Point2i(x, y));
}

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void Water::Free

(

)

Definition at line 66 of file water.cpp.

                {
  if(!actif)
    return;
  surface.Free();
  pattern.Free();
  height.clear();
}

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int Water::GetHeight

(

int

x

)

Definition at line 154 of file water.cpp.

                         {
  if (IsActive()){
    while(x<0)
      x += 180;
    while(x>=180)
      x -= 180;
    return height.at(x);
  }
  else
    return world.GetHeight();
}

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void Water::Init

(

)

Definition at line 44 of file water.cpp.

                {
   Profile *res = resource_manager.LoadXMLProfile( "graphism.xml", false);
   surface = resource_manager.LoadImage(res, "gfx/water");
   surface.SetAlpha(0, 0);
   pattern.NewSurface( Point2i(180, surface.GetHeight() + 40), SDL_SWSURFACE|SDL_SRCALPHA, true);
   shift1 = 0;
   resource_manager.UnLoadXMLProfile(res);
}

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bool Water::IsActive

(

)

Definition at line 166 of file water.cpp.

                    {
  return actif;
}

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void Water::Refresh

(

)

Definition at line 74 of file water.cpp.

                   {
  if (!actif)
    return;

  height_mvt = 0;

  Time * global_time = Time::GetInstance();
  if (temps_montee < global_time->Read())
  {
    if(temps_montee + GO_UP_OSCILLATION_TIME * 1000 > global_time->Read()){
      uint dt=global_time->Read()- temps_montee;
      height_mvt = GO_UP_STEP + (uint)(((float)GO_UP_STEP * sin(((float)(dt*(GO_UP_OSCILLATION_NBR-0.25))/GO_UP_OSCILLATION_TIME/1000.0)*2*M_PI))/(a*dt+b));
    }
    else{
      temps_montee += GO_UP_TIME * 60 * 1000;
      hauteur_eau += GO_UP_STEP;
    }
  }

  // on rempli le sol avec de l'eau
  if (WAVE_TIME < (global_time->Read() - temps_eau))
  {
    temps_eau = global_time->Read();
    vague += WAVE_STEP;
    if (surface.GetWidth() <= vague)
                vague=0;
  }

  int x = -surface.GetWidth() + vague;
  int y = world.GetHeight()-(hauteur_eau + height_mvt);

  double decree = (double) 2*M_PI/360;

  double angle1 = 0;
  double angle2 = shift1;
  do
  {
    int offset=0;
    double y_pos = y + sin(angle1)*10 + sin(angle2)*10;

    if (0<=x+offset)
         height.at(x+offset) = (int)y_pos;

    angle1 += 2*decree;
    angle2 += 4*decree;
    x++;
  } while ((uint)x < 180);

  shift1 += 4*decree;
}

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void Water::Reset

(

)

Definition at line 53 of file water.cpp.

                 {
  actif = ActiveMap().UseWater();
  if(!actif) return;
  Init();
  hauteur_eau = WATER_INITIAL_HEIGHT;
  vague = 0;
  temps_eau = 0;
  temps_montee = GO_UP_TIME * 60 * 1000;
  height.clear();
  height.assign(180, 0);
  Refresh(); // Calculate first height position
}

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Member Data Documentation

bool Water::actif [private]

Definition at line 37 of file water.h.

uint Water::hauteur_eau [private]

Definition at line 39 of file water.h.

std::vector<int> Water::height [private]

Definition at line 41 of file water.h.

int Water::height_mvt [private]

Definition at line 35 of file water.h.

Surface Water::pattern [private]

Definition at line 43 of file water.h.

double Water::shift1 [private]

Definition at line 38 of file water.h.

Surface Water::surface [private]

Definition at line 42 of file water.h.

uint Water::temps_eau [private]

Definition at line 34 of file water.h.

uint Water::temps_montee [private]

Definition at line 40 of file water.h.

int Water::vague [private]

Definition at line 36 of file water.h.

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The documentation for this class was generated from the following files:

• src/map/water.h
• src/map/water.cpp

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