add sfml main
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#include <SFML/Graphics.hpp>
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#include <math.h>
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#define SCREEN_HEIGHT 216
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#define SCREEN_WIDTH 384
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#define GET_POS(x) ((abs(x)+x)/2)
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const float CH_H = 3;
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const float CH_W = 1.5;
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sf::Color gray = sf::Color(84, 90, 112);
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sf::Color lightgray = sf::Color(183, 187, 201);
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sf::Color red = sf::Color(255, 46, 88);
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struct Road {
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int height; //number of elements
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struct Segment* segments; //array of segments
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float playerx;
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float playery;
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int width;
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int segment_height;
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int starty;
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};
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struct Segment {
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float x;
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float y;
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float z;
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int width;
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int height;
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sf::Color colour;
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};
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struct Segment seg(float x,float y,float z,int width,float height,sf::Color colour) {
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struct Segment segment = { x, y, z, width, height, colour };
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return segment;
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}
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void gen_road(struct Road* road, float zm = 1) {
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int v = road->height;
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/*for (int i = 0;i < road->height;i++) {
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road->segments[i].width = road->width;
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road->segments[i].height = road->height;
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road->segments[i].z = i * zm;
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road->segments[i].y = road->starty + zm;
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road->segments[i].x = 0;
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road->segments[i].colour = gray;
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v--;
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}*/
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road->segments[0] = seg(0, 190, 0, 90, 20, gray);
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road->segments[1] = seg(0, 190, 5, 90, 20, gray);
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road->segments[2] = seg(0, 190, 10, 90, 20, gray);
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road->segments[3] = seg(0, 190, 15, 90, 20, gray);
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road->segments[4] = seg(0, 190, 20, 90, 20, gray);
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road->segments[5] = seg(0, 190, 25, 90, 20, gray);
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road->segments[6] = seg(0, 190, 30, 90, 20, gray);
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road->segments[7] = seg(0, 190, 35, 90, 20, gray);
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road->segments[8] = seg(0, 190, 40, 90, 20, gray);
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road->segments[9] = seg(0, 190, 45, 90, 20, gray);
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road->segments[10] = seg(0, 190, 50, 90, 20, gray);
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road->segments[11] = seg(0, 190, 55, 90, 20, gray);
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road->segments[12] = seg(0, 185, 60, 90, 20, gray);
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road->segments[13] = seg(0, 182, 65, 90, 20, gray);
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road->segments[14] = seg(0, 180, 70, 90, 20, gray);
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road->segments[15] = seg(0, 178, 75, 90, 20, gray);
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/*pillar*/
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road->segments[16] = seg(-20, 185, 80, 130, 70, lightgray);
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road->segments[17] = seg(-20, 138, 80, 47, 70, lightgray);
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road->segments[18] = seg(63, 138, 80, 47, 70, lightgray);
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road->segments[19] = seg(63, 117, 80, 47, 30, red);
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road->segments[20] = seg(-20, 117, 80, 47, 30, red);
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/*pillar*/
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road->segments[21] = seg(0, 175, 80, 90, 20, gray);
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road->segments[22] = seg(0, 175, 80, 90, 20, gray);
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road->segments[23] = seg(0, 175, 85, 90, 20, gray);
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road->segments[24] = seg(0, 175, 90, 90, 20, gray);
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road->segments[25] = seg(0, 178, 95, 90, 20, gray);
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road->segments[26] = seg(0, 180, 100, 90, 20, gray);
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road->segments[27] = seg(0, 182, 105, 90, 20, gray);
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road->segments[28] = seg(0, 190, 110, 90, 20, gray);
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road->segments[29] = seg(0, 190, 115, 90, 20, gray);
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road->segments[30] = seg(0, 190, 120, 90, 20, gray);
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/*pillar*/
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road->segments[31] = seg(-20, 197, 120, 127, 70, lightgray);
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road->segments[32] = seg(-20, 160, 120, 57, 90, lightgray);
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road->segments[33] = seg(50, 160, 120, 57, 70, lightgray);
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road->segments[34] = seg(50, 139, 120, 57, 60, red);
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road->segments[35] = seg(-20, 139, 120, 57, 60, red);
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/*pillar*/
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road->segments[36] = seg(0, 190, 125, 90, 20, gray);
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road->segments[37] = seg(0, 190, 130, 90, 20, gray);
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road->segments[38] = seg(0, 190, 135, 90, 20, gray);
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road->segments[39] = seg(0, 190, 140, 90, 20, gray);
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road->segments[40] = seg(0, 190, 145, 90, 20, gray);
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}
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int get_visible_segments(struct Road* road, struct Segment** tochange, float zm = 2) {
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struct Segment* visible = (struct Segment*)malloc(road->height * sizeof(struct Segment));
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int visible_length = 0;
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for (int v = 0; v <= road->height; v++) {
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float s = road->segments[v].width - (v) * (zm);
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float yoffset = road->segments[v].y - road->segments[v].z + road->playery;
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float heightoffset = road->segment_height * (s / road->width);
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if (yoffset > 0 && yoffset - heightoffset < SCREEN_HEIGHT) {
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visible[visible_length] = road->segments[v];
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visible_length++;
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}
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}
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*tochange = (struct Segment*) realloc(*tochange, sizeof(struct Segment) * visible_length);
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for (int v = 0; v < visible_length; v++) {
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(*tochange)[v] = visible[v];
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}
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return visible_length;
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}
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void draw_road(sf::RenderWindow* window, struct Road* road, float zm = 2) {
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int i = 0;
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float s;
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for (int v = road->height - 1;v >= 0;v--) { //draws each rectangle from furthest to closest
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int seg_width = 90;
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s = seg_width - road->segments[v].z / CH_H;
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float widthoffset = road->segments[v].width - road->segments[v].z / CH_H;
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float heightoffset = road->segments[v].height * (s / seg_width);
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sf::RectangleShape rs(sf::Vector2f(widthoffset, heightoffset)); //makes a rectangle of width s and height relative to z position
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rs.setFillColor(road->segments[v].colour);
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//rs.setOutlineThickness(1);
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//rs.setOutlineColor(sf::Color(250, 150, 100));
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float xoffset = ((road->segments[v].x + 192) - s / 2) - (road->playerx * s); //display x position of rectangle (based on z and x axis)
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float yoffset = road->segments[v].y - road->segments[v].z + road->playery; //display y position of rectangle (based on z and y axis)
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rs.setPosition(xoffset, yoffset);
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window->draw(rs); //displays the rectangle
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if (road->segments[v].colour == gray) {
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sf::RectangleShape marking(sf::Vector2f(4, 4));
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marking.setFillColor(sf::Color::White);
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marking.setPosition(xoffset + s / 2, yoffset + 2);
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window->draw(marking);
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}
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i++;
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}
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}
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int main() {
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sf::RenderWindow window(sf::VideoMode(SCREEN_WIDTH, SCREEN_HEIGHT), "KraD");
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struct Road road;
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road.height = 41;
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road.playerx = 0;
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road.playery = 0;
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road.width = 100;
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road.starty = 160;
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road.segment_height = 30;
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road.segments = (struct Segment*)malloc(road.height * sizeof(struct Segment));
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gen_road(&road, CH_H); //2nd param = change rate of height
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sf::Clock clock;
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while (window.isOpen())
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{
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float dt = clock.restart().asSeconds();
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sf::Event event;
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while (window.pollEvent(event)) {
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if (event.type == sf::Event::Closed) {
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window.close();
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}
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}
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if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
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{
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road.playerx -= 5 * dt;
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}
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else if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
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{
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road.playerx += 5 * dt;
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}
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else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
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{
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float mov = 400 * dt;
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for (int i = 0;i < road.height;i++) {
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road.segments[i].x -= mov;
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}
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}
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else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
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{
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float mov = 400 * dt;
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for (int i = 0;i < road.height;i++) {
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road.segments[i].x += mov;
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}
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}
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else if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
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{
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road.playery -= 300 * dt;
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}
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else if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
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{
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road.playery += 300 * dt;
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}
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else if (event.key.code == sf::Keyboard::F) {
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struct Segment* visible = (struct Segment*)malloc(sizeof(struct Segment)); //only for initialization
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int visible_len = get_visible_segments(&road, &visible, CH_H);
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printf("%d", visible_len);
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}
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window.clear(sf::Color(0, 191, 255));
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draw_road(&window, &road, CH_W); //3rd param = change rate of width
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window.display();
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}
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}
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