display.cpp

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#include "game.h"
 
 
void Game::displayAll(unsigned fps) const {
    pm->drawSprite(pm->gameBackground, Position(0, 0));
    for (unsigned i = 0; i < this->grid.size(); ++i){
        for (unsigned j = 0; j < this->grid[i].size(); ++j){
            Position vec(
                    baseInvPos.getX() + i * confData.invadersSize + i * confData.invadersDistance,
                    baseInvPos.getY() + j * confData.invadersSize + j * confData.invadersDistance
            );
            displayInvader(vec, grid[i][j]);
        }
    }
 
    for(const missile& miss : missiles){
        pm->drawMissile(miss, confData.missilesWidth, confData.missilesColor);
    }
    for(const Torpedo& tor : torpedos){
        pm->drawTorpedo(tor, confData.torpedosWidth, confData.torpedosColor);
    }
 
    
    displayGod();
 
    DEBUG_INSTR(
        pm->drawText(Position(pm->getScreenWidth()-200, 20), "FPS : "+to_string(fps), nsGraphics::KWhite, Font::BITMAP_8_BY_13);
    )
 
    unsigned margin = 0;
    for(unsigned i=0;i<players.size();++i){
        pm->drawText(Position(0,10+margin),"player "+to_string(i+1)+" :",nsGraphics::KWhite,Font::BITMAP_8_BY_13);
        pm->drawText(Position(100,10+margin),to_string(players[i].score) ,nsGraphics::KWhite,Font::BITMAP_8_BY_13);
        margin +=15;
 
        if(!players[i].isEliminated()){
            if(players[i].deathAnimCounter%2==0){
                pm->drawPlayer(i, players[i].x, confData.playersWidth, confData.playerDefs[i].color);
            }
        }
        // out of the condition, because we still need to display the falling heart
        displayHearts(i);
    }
}
 
void Game::displayHearts(playerID pID) const {
 
    // As said before, the player loop is an illusion, 2 players max
    unsigned x;
    if(pID==PLAYER1)x = 0;
    else x = pm->getScreenWidth()-HEART_LENGTH;
 
    unsigned y = GOD_BENCH_SIZE+5;
    for(unsigned i=0;i<players[pID].lives;++i){
        pm->drawHeart(Position(x, y));
        y+=HEART_LENGTH+5;
    }
    if(players[pID].hasDeathAnimation()){
        pm->drawHeart(Position(x, y+players[pID].deathAnimCounter*5));
    }
}
 
void Game::displayInvader(const Position& pos, InvaderType type) const {
    if(type==InvaderType::NONE)return;
    const InvaderTypeDef& invDef = confData.invadersDef.at(type);
    switch(type){
        case InvaderType::TYPEA:{
            pm->drawInvaderA(pos, confData.invadersSize, invDef.color);
            return;
        }
        case InvaderType::TYPEB:{
            pm->drawInvaderB(pos, confData.invadersSize, invDef.color);
            return;
        }
        case InvaderType::TYPEC:{
            pm->drawInvaderC(pos, confData.invadersSize, invDef.color);
            return;
        }
    }
}
 
void applyBezierCurbe(Position& pos, const Position& point, const double percent) {
    pos += (point-pos)*percent;
}
 
void Game::displayGod() const {
    switch (god.state) {
        case GodState::NONE:
            return;
        case GodState::AWAKE: {
            pm->drawGodBench(god.counter - GOD_BENCH_SIZE);
 
            Position leftHand(GOD_HAND_DISTANCE, god.counter-GOD_BENCH_SIZE);
            Position rightHand(pm->getScreenWidth()-GOD_HAND_DISTANCE-GOD_HAND_SIZE, god.counter-GOD_BENCH_SIZE);
            pm->drawSprite(pm->leftHand, leftHand);
            pm->drawSprite(pm->rightHand, rightHand);
            pm->drawGodFace(god.counter - GOD_BENCH_SIZE);
            break;
        }
        case GodState::WAIT:{
            pm->drawGodBench(0);
            Position leftHand(GOD_HAND_DISTANCE, 0);
            Position rightHand(god.getRightHandPos(pm->getScreenWidth()));
            pm->drawSprite(pm->leftHand, leftHand);
            pm->drawSprite(pm->rightHand, rightHand);
            pm->drawGodFace(0);
            break;
        }
        case GodState::RETRIEVE1:
        case GodState::RETRIEVE2:{
            // Bezier curve
            // counter goes [0-100]
            pm->drawGodBench(0);
            pm->drawSprite(pm->leftHand, Position(GOD_HAND_DISTANCE, 0));
            pm->drawGodFace(0);
 
            Position pos(god.getRightHandPos(pm->getScreenWidth()));
            Position endPos = invIndexToPos(god.thrownInvPosX, god.thrownInvPosY);
 
            applyBezierCurbe(pos, god.thrownTransition, god.counter / 100.0);
            applyBezierCurbe(pos, endPos, god.counter / 100.0);
 
            // pos is now the position we need to draw our hand to
            pm->drawSprite(pm->rightHand, pos);
            if(god.thrownInvType!=InvaderType::NONE){
 
                pos+=Position(GOD_HAND_SIZE/2, GOD_HAND_SIZE/2);
                pos-=Position(confData.invadersSize/2, confData.invadersSize/2);
                displayInvader(pos, god.thrownInvType);
            }
            break;
        }
        case GodState::THROW:{
            pm->drawGodBench(0);
            pm->drawSprite(pm->leftHand, Position(GOD_HAND_DISTANCE, 0));
            pm->drawGodFace(0);
 
            // compute start position (not sure if we should store it or compute it each time ?)
            Position handPos = god.getRightHandPos(pm->getScreenWidth());
 
            Position invaderPos = handPos;
            applyTransformation(invaderPos, GOD_HAND_SIZE, confData.invadersSize);
            Position a = god.thrownVector * (god.counter / 100.0);
            invaderPos = invaderPos + a;
 
            displayInvader(invaderPos, god.thrownInvType);
            if(god.counter<30){
                // handling hand retraction
                unsigned handCounter;
                if(god.counter<15)handCounter = god.counter;
                else handCounter = 30-god.counter;
                handPos = handPos + god.thrownVector * (handCounter / 100.0);
            }
            pm->drawSprite(pm->rightHand, handPos);
 
            break;
        }
    }
}