Rockingcool/pong
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Added ball, and basic ball bouncing physics

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This commit is contained in:
Aadhavan Srinivasan
2023-12-14 12:59:27 -05:00
parent 1a21dbdcc7
commit 0b18de2563
1 changed files with 30 additions and 7 deletions
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37
pong.c
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@@ -33,21 +33,26 @@ int main(int argc, char** argv) {
ALLEGRO_COLOR white = al_map_rgba(255,255,255,255);
ALLEGRO_EVENT event;
bool running = true;
bool key_down_1 = false;
bool key_down_2 = false;
float width = 25;
float width = 25; // Width and height of paddles
float height = 150;
float start_x_1 = 10;
float start_x_1 = 10; // Top-left coordinates of first paddle
float start_y_1 = 10;
float start_x_2 = WIN_WIDTH - 10 - width;
float start_x_2 = WIN_WIDTH - 10 - width; // Top-left coordinates of second paddle
float start_y_2 = 10;
float velocity_1 = 0;
float velocity_2 = 0;
float velocity_1 = 0; // Vertical velocity of first paddle
float velocity_2 = 0; // Vertical velocity of second paddle
float circ_x = WIN_WIDTH / 2; // Center coordinates of ball
float circ_y = WIN_HEIGHT / 2;
float circ_rad = 10; // Radius of ball
float circ_vel_x = 5; // Horizontal velocity of ball
float circ_vel_y = 0; // Vertical velocity of ball
al_clear_to_color(black);
al_draw_filled_rectangle(start_x_1, start_y_1, start_x_1 + width, start_y_1 + height, white);
al_draw_filled_rectangle(start_x_2, start_y_2, start_x_2 + width, start_y_2 + height, white);
al_draw_filled_circle(circ_x, circ_y, circ_rad, white);
al_flip_display();
while (running) {
@@ -96,11 +101,29 @@ int main(int argc, char** argv) {
}
al_clear_to_color(black);
// Update positions
((velocity_1 < 0 && start_y_1 > 0) || (velocity_1 > 0 && start_y_1 + height < WIN_HEIGHT)) && (start_y_1 += velocity_1);
((velocity_2 < 0 && start_y_2 > 0) || (velocity_2 > 0 && start_y_2 + height < WIN_HEIGHT)) && (start_y_2 += velocity_2);
circ_x += circ_vel_x;
circ_y += circ_vel_y;
//Redraw shapes
al_draw_filled_rectangle(start_x_1, start_y_1, start_x_1 + width, start_y_1 + height + velocity_1, white);
al_draw_filled_rectangle(start_x_2, start_y_2, start_x_2 + width, start_y_2 + height + velocity_2, white);
al_draw_filled_circle(circ_x, circ_y, circ_rad, white);
al_flip_display();
if (circ_x + circ_rad >= WIN_WIDTH - 10 - width) { // FOR PADDLE 2: If the circle has reached the point where the paddle would be...
if (circ_y > start_y_2 && circ_y < start_y_2 + height) { // If the circle is touching the paddle...
circ_vel_x = -circ_vel_x;
}
} else if (circ_x - circ_rad <= 10 + width) { // FOR PADDLE 1
if (circ_y > start_y_1 && circ_y < start_y_1 + height) {
circ_vel_x =- circ_vel_x;
}
}
}
// Clean up