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pulsations

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Frank Villaro-Dixon 2015-01-01 07:37:18 +01:00
parent 2bb09b07f2
commit b45f1d015d
5 changed files with 19 additions and 10 deletions
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7
game.c
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@ -56,9 +56,13 @@ to_screen_coords(struct s_game *g, SDL_Point p) {
q.x = p.x * cos(angle) - p.y * sin(angle);
q.y = p.x * sin(angle) + p.y * cos(angle);
// q.x *= g->sexual_pulsation;
// q.y *= g->sexual_pulsation;
q.x += SCREEN_WIDTH/2;
q.y += SCREEN_HEIGHT/2;
return q;
}
@ -92,8 +96,8 @@ void
void
draw_game(struct s_game *g) { //{{{
draw_background(g);
draw_polygon(g);
draw_obstacles(g);
draw_polygon(g);
draw_cursor(g);
} //}}}
@ -119,6 +123,7 @@ init_game(struct s_game *g) { //{{{
g->polygon_type = SHAPE_HEXAGON;
g->cursor_angle = TO_DEG(90);
g->general_rotation = 0;
g->sexual_pulsation = 1;
g->color = 128;
g->keys = SDL_GetKeyState(NULL);

3
game.h
View file

@ -15,7 +15,7 @@
#define SCREEN_DIAGONAL (sqrt(SCREEN_HEIGHT*SCREEN_HEIGHT + SCREEN_WIDTH*SCREEN_WIDTH))
#define POLYGON_SIZE 30
#define POLYGON_SIZE 50
#define SHAPE_SQUARE 4
#define SHAPE_PENTAGON 5
@ -42,6 +42,7 @@ struct s_game {
#define CURSOR_POS_MAX 255
int cursor_angle; //relative to the polygon center's referential
int general_rotation;
float sexual_pulsation;
int polygon_type; //Shape
int color;
int actual_speed;

11
main.c
View file

@ -6,6 +6,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "SDL/SDL.h"
#include "game.h"
#include "sdl.h"
@ -49,15 +50,11 @@ start:
ga.counter++;
if(rand()%30 == 0) {
rotation += rand()%20 - 10;
if(rotation > 15)
rotation = 15;
if(rotation < -13)
rotation = -13;
}
ga.general_rotation += rotation;
ga.general_rotation %= ANGLE_MAX;
ga.sexual_pulsation = 0.3 * fabs(cos(ga.counter*M_PI/45)) + 1 +
0.3 * fabs(sin(ga.counter*M_PI/90));
}
return EXIT_SUCCESS;

3
obs.c
View file

@ -74,8 +74,9 @@ update_obstacles(struct s_game *g) { //{{{
for(i = 0; i < g->num_obs; i++) {
if(g->obs[i].used) {
g->obs[i].distance -= g->obs[i].speed;
g->obs[i].thick = 3 * g->sexual_pulsation * SHAPE_THICK;
if(g->obs[i].distance <= POLYGON_SIZE)
if(g->obs[i].distance <= 0)
g->obs[i].used = 0;
}
}

5
polygons.c
View file

@ -46,6 +46,11 @@ draw_polygon(struct s_game *g) { //{{{
void (*drawer)(struct s_game *, int faceno, int dist, int thick, int col);
drawer = get_polygon_drawer(g);
for(faces = 0; faces < SHAPE_HEXAGON; faces++) {
drawer(g, faces, 0, POLYGON_SIZE, 0);
}
for(faces = 0; faces < SHAPE_HEXAGON; faces++) {
drawer(g, faces, POLYGON_SIZE, SHAPE_THICK-5, g->color);
}