127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
#include "wapp.h"
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#include "raylib.h"
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#include <stdint.h>
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#include <assert.h>
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#define WIDTH 1280
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#define HEIGHT 720
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#define HALF_WIDTH (WIDTH * 0.5f)
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#define HALF_HEIGHT (HEIGHT * 0.5f)
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#define MAX_OBJ_DIM 80
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#define MIN_OBJ_DIM 20
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#define BG_COLOR (Color){.r = 0xea, .g = 0xf2, .b = 0xe3, .a = 0xff}
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#define FG_COLOR (Color){.r = 0x42, .g = 0x4C, .b = 0x55, .a = 0xff}
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#define OBJECT_COUNT 1
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#define MSG_BUF_LEN 4096
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#define abs(A) (A < 0 ? A * -1 : A)
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#define min(A, B) (A < B ? A : B)
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#define max(A, B) (A > B ? A : B)
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typedef struct Position Position;
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struct Position {
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f32 x;
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f32 y;
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};
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typedef struct Scale Scale;
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struct Scale {
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f32 width;
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f32 height;
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};
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typedef struct Velocity Velocity;
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struct Velocity {
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f32 x;
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f32 y;
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};
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typedef struct Object Object;
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struct Object {
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Position position;
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Scale scale;
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Velocity velocity;
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};
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void init_object(Object *object, XOR256State *state);
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void update_object(Object *object);
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void move_object(Object *object);
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f32 get_random_float(XOR256State *state);
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int main(void) {
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InitWindow(WIDTH, HEIGHT, "Handle test");
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SetTargetFPS(120);
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Allocator arena = wapp_mem_arena_allocator_init(MB(10));
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XOR256State state = wapp_prng_xorshift_init_state();
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Object *objects = wapp_mem_allocator_alloc(&arena, sizeof(Object) * OBJECT_COUNT);
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assert(objects != NULL);
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for (u64 i = 0; i < OBJECT_COUNT; ++i) {
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Object *object = &(objects[i]);
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init_object(object, &state);
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}
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while (!WindowShouldClose()) {
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for (u64 i = 0; i < OBJECT_COUNT; ++i) {
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Object *object = &(objects[i]);
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move_object(object);
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}
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BeginDrawing();
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ClearBackground(BG_COLOR);
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for (u64 i = 0; i < OBJECT_COUNT; ++i) {
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Object *object = &(objects[i]);
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DrawRectangle(
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(i32)object->position.x,
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(i32)object->position.y,
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(i32)object->scale.width,
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(i32)object->scale.height,
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FG_COLOR
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);
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}
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EndDrawing();
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}
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wapp_mem_arena_allocator_destroy(&arena);
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CloseWindow();
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return 0;
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}
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void init_object(Object *object, XOR256State *state) {
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object->position = (Position){
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.x = wapp_prng_xorshift_256(state) % WIDTH,
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.y = wapp_prng_xorshift_256(state) % HEIGHT,
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};
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object->scale = (Scale){
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.width = max(wapp_prng_xorshift_256(state) % MAX_OBJ_DIM, MIN_OBJ_DIM),
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.height = max(wapp_prng_xorshift_256(state) % MAX_OBJ_DIM, MIN_OBJ_DIM),
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};
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object->velocity = (Velocity){
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.x = get_random_float(state),
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// .y = get_random_float(state),
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.y = 0.0f,
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};
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}
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void move_object(Object *object) {
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object->position.x += object->velocity.x;
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object->position.y += object->velocity.y;
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if (object->position.x > WIDTH ||
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object->position.x + object->scale.width < 0 ||
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object->position.y > HEIGHT ||
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object->position.y + object->scale.height < 0
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) {
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}
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}
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f32 get_random_float(XOR256State *state) {
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i64 random = (i64)wapp_prng_xorshift_256(state) - INT64_MAX;
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return (f32)(random) / (f32)(INT64_MAX);
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}
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