void Display::RenderUnit(const Unit & unit)
{
static const float3 factionColors[12] =
{
float3(1,0,0), float3(0,1,0), float3(0,1,0.5f), float3(0.5f,0,1),
float3(1,0.5f,0), float3(0.5f,0.25f,0), float3(1,1,1), float3(1,1,0),
float3(0,0,0), float3(0,0,0), float3(0,0,0), float3(0,1,1)
};
glColor4f(1, 1, 1, 1);
const int healthBoxHeight = 4;
const Position pos(unit.currentPosition(state.getTime()));
const BWAPI::UnitType type(unit.type());
const int tx(textureSizes[type.getID()].x()/2);
const int ty(textureSizes[type.getID()].y()/2);
// unit box will be a square due to having square textures
const int x0(pos.x() - type.dimensionUp());
const int x1(pos.x() + type.dimensionDown());
const int y0(pos.y() - type.dimensionUp());
const int y1(pos.y() + type.dimensionDown());
const int tx0(pos.x() - tx);
const int tx1(pos.x() + tx);
const int ty0(pos.y() - ty);
const int ty1(pos.y() + ty);
// if the unit can move right now draw its move
if (unit.previousActionTime() == state.getTime())
{
const UnitAction & move = unit.previousAction();
if (move.type() == UnitActionTypes::MOVE)
{
glColor4f(1, 1, 1, 0.75);
glBegin(GL_LINES);
glVertex2i(pos.x(), pos.y());
glVertex2i(unit.pos().x(), unit.pos().y());
glEnd( );
}
else if (move.type() == UnitActionTypes::ATTACK)
{
const Unit & target(state.getUnit(state.getEnemy(unit.player()), move.index()));
const Position targetPos(target.currentPosition(state.getTime()));
glColor4f(factionColors[unit.player()].x, factionColors[unit.player()].y, factionColors[unit.player()].z, 0.75);
glBegin(GL_LINES);
glVertex2i(pos.x(), pos.y());
glVertex2i(targetPos.x(), targetPos.y());
glEnd( );
/*glColor4f(1.0, 0.0, 0.0, 0.25);
glBegin(GL_QUADS);
glVertex2i(targetPos.x()-type.dimensionUp(),targetPos.y()-type.dimensionUp());
glVertex2i(targetPos.x()-type.dimensionUp(),targetPos.y()+type.dimensionUp());
glVertex2i(targetPos.x()+type.dimensionUp(),targetPos.y()+type.dimensionUp());
glVertex2i(targetPos.x()+type.dimensionUp(),targetPos.y()-type.dimensionUp());
glEnd();*/
}
else if (move.type() == UnitActionTypes::HEAL)
{
const Unit & target(state.getUnit(unit.player(), move.index()));
const Position targetPos(target.currentPosition(state.getTime()));
glColor4f(factionColors[unit.player()].x, factionColors[unit.player()].y, factionColors[unit.player()].z, 0.75);
glBegin(GL_LINES);
glVertex2i(pos.x(), pos.y());
glVertex2i(targetPos.x(), targetPos.y());
glEnd( );
/*glColor4f(0.0, 1.0, 0.0, 0.25);
glBegin(GL_QUADS);
glVertex2i(targetPos.x()-type.dimensionUp(),targetPos.y()-type.dimensionUp());
glVertex2i(targetPos.x()-type.dimensionUp(),targetPos.y()+type.dimensionUp());
glVertex2i(targetPos.x()+type.dimensionUp(),targetPos.y()+type.dimensionUp());
glVertex2i(targetPos.x()+type.dimensionUp(),targetPos.y()-type.dimensionUp());
glEnd();*/
}
}
// draw the unit's texture
glEnable( GL_TEXTURE_2D );
glColor4f(1, 1, 1, 0.75);
glBindTexture( GL_TEXTURE_2D, unit.type().getID() );
glBegin( GL_QUADS );
glTexCoord3d(0.0,0.0,.5); glVertex2i(tx0,ty0);
glTexCoord3d(1.0,0.0,.5); glVertex2i(tx1,ty0);
glTexCoord3d(1.0,1.0,.5); glVertex2i(tx1,ty1);
glTexCoord3d(0.0,1.0,.5); glVertex2i(tx0,ty1);
glEnd();
glDisable( GL_TEXTURE_2D );
if (unit.player() == Players::Player_None)
{
return;
}
// draw the unit HP box
double percHP = (double)unit.currentHP() / (double)unit.maxHP();
int cw = (int)((x1-x0) * percHP);
int xx = pos.x() - (x1-x0)/2;
int yy = pos.y() - healthBoxHeight - (y1-y0)/2 - 5;
glColor4f(factionColors[unit.player()].x, factionColors[unit.player()].y, factionColors[unit.player()].z, 0.75);
glBegin(GL_QUADS);
glVertex2i(xx,yy);
glVertex2i(xx+cw,yy);
glVertex2i(xx+cw,yy+healthBoxHeight);
glVertex2i(xx,yy+healthBoxHeight);
glEnd();
// draw the unit energy box
if (unit.currentEnergy() > 0)
{
double percEnergy = (double)unit.currentEnergy() / (double)Constants::Starting_Energy;
cw = (int)((x1-x0) * percEnergy);
xx = pos.x() - (x1-x0)/2;
yy = pos.y() - healthBoxHeight*2 - (y1-y0)/2 - 5;
glColor4f(0.0, 1.0, 0.0, 0.75);
glBegin(GL_QUADS);
glVertex2i(xx,yy);
glVertex2i(xx+cw,yy);
glVertex2i(xx+cw,yy+healthBoxHeight);
glVertex2i(xx,yy+healthBoxHeight);
glEnd();
}
// draw attack radius
glColor4f(0.2f, 0.2f, 0.2f, 0.25);
int radius = unit.canHeal() ? unit.healRange() : unit.range();
//DrawCircle((float)pos.x(), (float)pos.y(), (float)radius, 60);
}