Files
CPPGameBook/Capter1/ball.cpp

78 lines
1.7 KiB
C++

#include "ball.hpp"
#include "ax_funktions.hpp"
ball::ball()
{
std::cout << "Ball erzeugt!"<< std::endl;
r_dir = 0;
g_dir = -1;
b_dir = 1;
velx = 200;
vely = 200;
rect = {20,20,20,20};
color = {255,0,0,255};
}
ball::~ball()
{
}
int ball::GetXPos(){
return rect.x;
}
int ball::GetYPos(){
return rect.y;
}
void ball::Draw(SDL_Renderer* renderer){
rect.x;
rect.y;
SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
SDL_RenderFillRect(renderer, &rect);
}
void ball::Update(float f_DeltaTime){
color.r += r_dir;
color.g += g_dir;
color.b += b_dir;
//=================ColorCycle======================
// Clamp values between 1 and 254
color.g = ax::clamp_int(color.g, 1, 254);
color.b = ax::clamp_int(color.b, 1, 254);
color.r = ax::clamp_int(color.r, 1, 254);
// Transition logic
if (r_dir != 0 && (color.r == 254 || color.r == 1)) {
r_dir = 0;
g_dir = (color.r == 254) ? 1 : -1;
b_dir = 0;
}
else if (g_dir != 0 && (color.g == 254 || color.g == 1)) {
g_dir = 0;
b_dir = (color.g == 254) ? 1 : -1;
r_dir = (color.g == 254) ? -1 : 1;
}
else if (b_dir != 0 && (color.b == 254 || color.b == 1)) {
b_dir = 0;
r_dir = 0;
g_dir = (color.b == 254) ? -1 : 1;
}
//=================Movement======================
//Update Position
rect.x +=velx * f_DeltaTime;
rect.y +=vely * f_DeltaTime;
//Kollisioinstest Fenster 1024x768
if(rect.x > (1024 -20) || rect.x < 0) velx *= -0.5;
if(rect.y > (768 - 20) || rect.y < 0) vely *= -0.5;
//std::cout << velx <<"|"<< vely <<std::endl;
}