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main: added pause (KEY_SPACE) and "inspect this cell" (MOUSE_BUTTON_LEFT)

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This commit is contained in:
Aryadev Chavali
2026-03-10 21:37:00 +00:00
parent 6039ab720f
commit 30f8e65cc2
1 changed files with 41 additions and 11 deletions
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48
src/main.c
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@@ -20,6 +20,13 @@
#define WIDTH 800 #define WIDTH 800
#define HEIGHT 600 #define HEIGHT 600
// Our grid will be of length sqrt(NUM_PROGRAMS). This is the same as
// 1LU<<(NUM_PROGRAMS_POW_2/2).
static const size_t GRID_WIDTH = 1LU << (NUM_PROGRAMS_POW_2 / 2);
static const size_t CELL_WIDTH = WIDTH / GRID_WIDTH;
static const char *VALID_OPS = "<>{}-+.,[]";
Color simulation_cell_color(const u8 *program) Color simulation_cell_color(const u8 *program)
{ {
// How do we compute a "colour" for a program? I say we count all the valid // How do we compute a "colour" for a program? I say we count all the valid
@@ -38,8 +45,6 @@ Color simulation_cell_color(const u8 *program)
[']'] = ColorNormalize(ColorFromHSV(0.090, 0.745, 0.812)), [']'] = ColorNormalize(ColorFromHSV(0.090, 0.745, 0.812)),
}; };
static const char *VALID_OPS = "<>{}-+.,[]";
u64 counter[] = { u64 counter[] = {
['<'] = 0, ['>'] = 0, ['{'] = 0, ['}'] = 0, ['-'] = 0, ['<'] = 0, ['>'] = 0, ['{'] = 0, ['}'] = 0, ['-'] = 0,
['+'] = 0, ['.'] = 0, [','] = 0, ['['] = 0, [']'] = 0, ['+'] = 0, ['.'] = 0, [','] = 0, ['['] = 0, [']'] = 0,
@@ -77,17 +82,11 @@ Color simulation_cell_color(const u8 *program)
void simulation_draw(struct Simulation *sim) void simulation_draw(struct Simulation *sim)
{ {
// Our grid will be of lengths sqrt(NUM_PROGRAMS) == 1 <<
// (NUM_PROGRAMS_POW_2/2).
const size_t GRID_WIDTH = 1LU << (NUM_PROGRAMS_POW_2 / 2);
const size_t CELL_WIDTH = WIDTH / GRID_WIDTH;
sv_t sv = SV(sim->buffer, SIMULATION_SIZE); sv_t sv = SV(sim->buffer, SIMULATION_SIZE);
for (u64 i = 0; i < SIMULATION_SIZE / SIZEOF_PROGRAM; ++i) for (u64 i = 0; i < SIMULATION_SIZE / SIZEOF_PROGRAM; ++i)
{ {
sv_t program = sv_truncate(sv, SIZEOF_PROGRAM); sv_t program = sv_truncate(sv, SIZEOF_PROGRAM);
Color color = simulation_cell_color((const u8 *)program.data); Color color = simulation_cell_color((const u8 *)program.data);
u64 x = i / GRID_WIDTH; u64 x = i / GRID_WIDTH;
@@ -95,11 +94,16 @@ void simulation_draw(struct Simulation *sim)
DrawRectangle(x * CELL_WIDTH, y * CELL_WIDTH, CELL_WIDTH, CELL_WIDTH, DrawRectangle(x * CELL_WIDTH, y * CELL_WIDTH, CELL_WIDTH, CELL_WIDTH,
color); color);
if (i == sim->p1 || i == sim->p2) if (i == sim->p1)
{ {
DrawRectangleLines(x * CELL_WIDTH, y * CELL_WIDTH, CELL_WIDTH, CELL_WIDTH, DrawRectangleLines(x * CELL_WIDTH, y * CELL_WIDTH, CELL_WIDTH, CELL_WIDTH,
BLUE); BLUE);
} }
if (i == sim->p1)
{
DrawRectangleLines(x * CELL_WIDTH, y * CELL_WIDTH, CELL_WIDTH, CELL_WIDTH,
RED);
}
sv = sv_chop_left(sv, 64); sv = sv_chop_left(sv, 64);
} }
@@ -112,11 +116,37 @@ int main(void)
struct Simulation sim = {0}; struct Simulation sim = {0};
simulation_init(&sim); simulation_init(&sim);
bool paused = false;
InitWindow(WIDTH, HEIGHT, "CompLife"); InitWindow(WIDTH, HEIGHT, "CompLife");
SetTargetFPS(60); SetTargetFPS(60);
for (size_t ticks = 0; !WindowShouldClose(); ++ticks) for (size_t ticks = 0; !WindowShouldClose(); ++ticks)
{
if (IsKeyPressed(KEY_SPACE))
{
paused = !paused;
}
if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
{
Vector2 pos = GetMousePosition();
u64 x = (pos.x / WIDTH) * GRID_WIDTH;
u64 y = (pos.y / WIDTH) * GRID_WIDTH;
printf("(%lu,%lu)=", x, y);
sv_t sv = sv_truncate(
sv_chop_left(SV(sim.buffer, SIMULATION_SIZE), (x * GRID_WIDTH) + y),
64);
for (u64 i = 0; i < sv.size; ++i)
{
if (strchr(VALID_OPS, sv.data[i]))
{
printf("%c", sv.data[i]);
}
}
printf("\n");
}
if (!paused)
{ {
simulation_update(&sim); simulation_update(&sim);
}
BeginDrawing(); BeginDrawing();
ClearBackground(BLACK); ClearBackground(BLACK);
simulation_draw(&sim); simulation_draw(&sim);