From d38e35b0929c783596d674746c544e6b46dceab8 Mon Sep 17 00:00:00 2001
From: nemo <n3m0o7@hotmail.com>
Date: Wed, 5 Feb 2025 15:41:06 +0100
Subject: [PATCH] begin rop
---
06-rope/.gitignore | 1 +
06-rope/Makefile | 8 ++++++
06-rope/main.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 71 insertions(+)
create mode 100644 06-rope/.gitignore
create mode 100644 06-rope/Makefile
create mode 100644 06-rope/main.c
diff --git a/06-rope/.gitignore b/06-rope/.gitignore
new file mode 100644
index 0000000..649b5f0
--- /dev/null
+++ b/06-rope/.gitignore
@@ -0,0 +1 @@
+rope
diff --git a/06-rope/Makefile b/06-rope/Makefile
new file mode 100644
index 0000000..e776ace
--- /dev/null
+++ b/06-rope/Makefile
@@ -0,0 +1,8 @@
+all:
+ gcc main.c -lraylib -o rope
+
+run: all
+ ./rope
+
+clean:
+ rm rope
diff --git a/06-rope/main.c b/06-rope/main.c
new file mode 100644
index 0000000..7d46a30
--- /dev/null
+++ b/06-rope/main.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+
+#include "raylib.h"
+#include "raymath.h"
+
+#define ROPE_LEN 20
+#define ROPE_WIDTH 10
+
+#define NB_ROPE 50
+Vector2 ropes[NB_ROPE];
+Vector2 forces[NB_ROPE];
+
+int main()
+{
+ InitWindow(1920, 1080, "speedrun");
+ SetWindowState(FLAG_FULLSCREEN_MODE|FLAG_WINDOW_RESIZABLE);
+ SetTargetFPS(60);
+
+ while (!WindowShouldClose()) {
+ BeginDrawing();
+ {
+ ClearBackground(GRAY);
+
+ ropes[0] = GetMousePosition();
+ DrawCircleV(ropes[0], 5, YELLOW);
+
+ for (int i = 1; i < NB_ROPE; i++) {
+ Vector2 old = ropes[i];
+
+ if (!IsKeyDown(KEY_SPACE))
+ forces[i].y += 9.8*100*GetFrameTime();
+
+ ropes[i] = Vector2Add(ropes[i], forces[i]);
+
+ float dist = Vector2Distance(ropes[i-1], ropes[i]);
+ if (!dist) dist = ROPE_LEN;
+ ropes[i] = Vector2Lerp(ropes[i-1], ropes[i], ROPE_LEN/dist);
+
+ Vector2 snap = Vector2Subtract(old, ropes[i]);
+ snap = Vector2Negate(snap);
+ snap = Vector2Scale(snap, GetFrameTime()*37);
+
+ forces[i] = snap;
+
+ DrawCircleV(ropes[i], ROPE_WIDTH/2, YELLOW);
+ DrawLineEx(ropes[i-1], ropes[i], ROPE_WIDTH, YELLOW);
+
+ // DEBUG:
+ // DrawLineEx(old, ropes[i], ROPE_WIDTH, RED);
+ // DrawText(TextFormat("%.3f %.3f", forces[i].x, forces[i].y), 0, (i-1)*25, 25, ORANGE);
+ }
+
+ DrawText("Mode: ", 0, 1080-25, 25, ORANGE);
+ if (IsKeyDown(KEY_SPACE)) {
+ DrawText("SPACE", MeasureText("Mode: ", 25), 1080-25, 25, DARKBLUE);
+ } else {
+ DrawText("GRAVITY", MeasureText("Mode: ", 25), 1080-25, 25, BROWN);
+ }
+ }
+ EndDrawing();
+ }
+}