Player.cpp

#include "Player.h"
#include <glm/gtc/matrix_transform.hpp>
#include <cmath>

using namespace glm;

Player::Player(const string& objPath, const string& texPath,
               float scaleVal, float groundY)
    : Model(objPath, texPath), groundY(groundY)
{
    scale    = vec3(scaleVal);
    position = vec3(0.f, groundY, 0.f);
    rotation = vec3(0.f);
}

// ---- Per-frame update (jump physics) ----
void Player::update(float dt) {
    if (isJumping) {
        position.y  += jumpVelocity * dt;
        jumpVelocity += gravity * dt;

        if (position.y <= groundY) {
            position.y   = groundY;
            isJumping    = false;
            jumpVelocity = 0.f;
        }
    }
}

// ---- Movement ----
void Player::moveForward(float dt) {
    vec3 fwd = getForwardVector();
    position += fwd * moveSpeed * dt;
}

void Player::moveBackward(float dt) {
    vec3 fwd = getForwardVector();
    position -= fwd * moveSpeed * dt;
}

void Player::turnLeft(float dt) {
    yaw         += turnSpeed * dt;
    rotation.y   = yaw;
}

void Player::turnRight(float dt) {
    yaw         -= turnSpeed * dt;
    rotation.y   = yaw;
}

void Player::jump() {
    if (!isJumping) {
        isJumping    = true;
        jumpVelocity = 10.f;   // initial upward velocity
    }
}

// ---- Helpers ----
vec3 Player::getForwardVector() const {
    float rad = radians(yaw);
    return normalize(vec3(sin(rad), 0.f, cos(rad)));
}

vec3 Player::getFrontPosition() const {
    // One unit in front of the tank at eye height
    return position + getForwardVector() * 1.5f + vec3(0.f, 0.8f, 0.f);
}