cg 50 port
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gint/main.c
152
gint/main.c
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/*incoming*/
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#include <gint/display.h>
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#include <gint/keyboard.h>
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#include <stdlib.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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#define SEG_WIDTH 70
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#define C_RGB(r,g,b) (((r) << 11) | ((g) << 6) | (b))
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const float CH_H = 4;
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const float CH_W = 1.5;
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const float dt = 0.05; // ;-;
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float CH_HY = 0.70; //0->flat
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int gray = C_RGB(155, 154, 166);
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int lightgray = C_RGB(183, 187, 201);
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int red = C_RGB(255, 46, 88);
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int lightblue = C_RGB(173, 216, 230);
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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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int colour;
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};
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struct Segment seg(float, float, float, int, int, int);
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void draw_road(struct Road*);
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void gen_road(struct Road*);
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int main() {
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struct Road road;
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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.height = 27;
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road.segments = (struct Segment*)malloc(road.height * sizeof(struct Segment));
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gen_road(&road);
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while (!keydown(KEY_MENU))
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{
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dclear(lightblue);
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clearevents();
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draw_road(&road);
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dupdate();
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const int left_down = keydown(KEY_LEFT);
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const int right_down = keydown(KEY_RIGHT);
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const int up_down = keydown(KEY_UP);
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const int down_down = keydown(KEY_DOWN); //pardon lephenixnoir :E
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if (right_down)
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road.playerx -= 5 * dt;
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else if (left_down)
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road.playerx += 5 * dt;
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else if (up_down)
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{
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road.playery -= 250 * dt;
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CH_HY -= 5 / 4 * dt;
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}
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else if (down_down)
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{
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road.playery += 250 * dt;
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CH_HY += 5 / 4 * dt;
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}
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}
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return 1;
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}
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struct Segment seg(float x, float y, float z, int width, int height, int 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) {
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road->segments[0] = seg(0, 190, 0, SEG_WIDTH, 20, gray);
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road->segments[1] = seg(0, 190, 9, SEG_WIDTH, 20, gray);
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road->segments[2] = seg(0, 190, 18, SEG_WIDTH, 20, gray);
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road->segments[3] = seg(0, 190, 27, SEG_WIDTH, 20, gray);
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road->segments[4] = seg(0, 190, 36, SEG_WIDTH, 20, gray);
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road->segments[5] = seg(0, 190, 45, SEG_WIDTH, 20, gray);
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road->segments[6] = seg(0, 185, 54, SEG_WIDTH, 20, gray);
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road->segments[7] = seg(0, 180, 63, SEG_WIDTH, 20, gray);
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road->segments[8] = seg(0, 178, 72, SEG_WIDTH, 20, gray);
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/*pillar*/
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float s = SEG_WIDTH - 81 / CH_H;
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float w31 = 136 * (s / SEG_WIDTH);
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float h31 = 50 * (s / SEG_WIDTH);
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float w30 = SEG_WIDTH * (s / SEG_WIDTH);
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float h30 = 20 * (s / SEG_WIDTH);
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float y31 = 178 + h30;
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float h32 = 30 * (s / SEG_WIDTH);
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road->segments[9] = seg((w31 - w30) / -2, y31, 81, 136, 50, lightgray);
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road->segments[10] = seg((w31 - w30) / -2, y31 - h31, 81, 33, 70, lightgray);
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road->segments[11] = seg(w30, y31 - h31, 81, 33, 70, lightgray);
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road->segments[12] = seg(w30, y31 - h31 - h32, 81, 33, 30, red);
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road->segments[13] = seg((w31 - w30) / -2, y31 - h31 - h32, 81, 33, 30, red);
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/*pillar*/
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road->segments[14] = seg(0, 175, 81, SEG_WIDTH, 20, gray);
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road->segments[15] = seg(0, 175, 90, SEG_WIDTH, 20, gray);
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road->segments[16] = seg(0, 180, 99, SEG_WIDTH, 20, gray);
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road->segments[17] = seg(0, 190, 108, SEG_WIDTH, 20, gray);
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road->segments[18] = seg(0, 190, 117, SEG_WIDTH, 20, gray);
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/*pillar*/
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s = SEG_WIDTH - 117 / (CH_H);
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w31 = 136 * (s / SEG_WIDTH);
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h31 = 50 * (s / SEG_WIDTH);
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w30 = SEG_WIDTH * (s / SEG_WIDTH);
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h30 = 20 * (s / SEG_WIDTH);
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y31 = 190 + h30;
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h32 = 30 * (s / SEG_WIDTH);
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road->segments[19] = seg((w31 - w30) / -2, y31, 117, 136, 50, lightgray);
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road->segments[20] = seg((w31 - w30) / -2, y31 - h31, 117, 33, 70, lightgray);
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road->segments[21] = seg(w30, y31 - h31, 117, 33, 70, lightgray);
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road->segments[22] = seg(w30, (y31 - h31) - h32, 117, 33, 30, red);
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road->segments[23] = seg((w31 - w30) / -2, (y31 - h31) - h32, 117, 33, 30, red);
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/*pillar*/
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road->segments[24] = seg(0, 190, 126, SEG_WIDTH, 20, gray);
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road->segments[25] = seg(0, 190, 135, SEG_WIDTH, 20, gray);
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road->segments[26] = seg(0, 190, 144, SEG_WIDTH, 20, gray);
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}
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void draw_road(struct Road* road) {
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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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float yoffset = road->segments[v].y - road->segments[v].z * CH_HY + road->playery;
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s = SEG_WIDTH - road->segments[v].z / (CH_H);
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float heightoffset = road->segments[v].height * (s / SEG_WIDTH);
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if(yoffset < SCREEN_HEIGHT && yoffset+heightoffset < 0)
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continue;
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float widthoffset = road->segments[v].width * (s / SEG_WIDTH);
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float xoffset = ((road->segments[v].x + SCREEN_WIDTH / 2) - s / 2) - road->playerx * s;
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drect(xoffset, yoffset, xoffset + widthoffset, yoffset+heightoffset, road->segments[v].colour);
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if (road->segments[v].colour == gray)
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drect(xoffset + s / 2, yoffset + 2, xoffset + s / 2 + 3, yoffset+2+3, C_WHITE);
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}
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}
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