From 467490b7653fb3bcd94104f2cdc66a8f0d8bdd04 Mon Sep 17 00:00:00 2001
From: davidovski <david@sendula.com>
Date: Tue, 20 Apr 2021 21:04:08 +0100
Subject: added stars and torus like screen behaviour

---
 Makefile    |  3 ++-
 asteroids.c | 56 +++++++++++++++++++++++++++++++++++---------------------
 2 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/Makefile b/Makefile
index b06d04f..4cc1460 100644
--- a/Makefile
+++ b/Makefile
@@ -8,4 +8,5 @@ ${PROG}: ${PROG}.c
 	${CC} ${PROG}.c -o ${PROG} ${FLAGS}
 
 run: ${PROG}
-	./${PROG}
+	./${PROG} 
+
diff --git a/asteroids.c b/asteroids.c
index d1c3b27..58b4ae6 100644
--- a/asteroids.c
+++ b/asteroids.c
@@ -3,8 +3,8 @@
 #include <raylib.h>
 #include <math.h>
 
-const int height = 800;
 const int width = 800;
+const int height = 800;
 const int fps = 60;
 
 const Color bg = BLACK;
@@ -13,24 +13,23 @@ const Color fg = GREEN;
 const float NOSE = PI/8;
 const int LENGTH = 36;
 const float THRUST = 0.1;
-const int SKY_SIZE = 256;
+
+
+typedef struct Asteroid{
+	Vector2 pos;
+	Vector2 velocity;
+	int size
+};
+
+Vector2 sky[256];
+Vector2 asteroids[64];
 
 Vector2 pos = {(float) height / 2, (float) width / 2};
 Vector2 vel = {0.0f, 0.0f};
 float angle = 0;
 
-Vector2 * sky;
-
-Vector2 * generateSky() {
-	Vector2 s[SKY_SIZE];
-	for (int i = 0; i < SKY_SIZE; i++) {
-		s[i] = (Vector2){rand() % width, rand() % height};
-	} 
-	return s;
-}
 
 Vector2 wingpos(int w) {
-	// optimise this maths
 	int x, y;
 	float a;
 	
@@ -42,42 +41,57 @@ Vector2 wingpos(int w) {
 	return (Vector2){x, y};
 }
 
-int accelerate(float m) {
-	vel.x += sin(angle) * m;
-	vel.y += cos(angle) * m;
-}
-
 int drawPlayer() {
 	DrawTriangleLines(
 		pos,
 		wingpos(-1),
-		wingpos(1),	
+		wingpos(1),
 		fg
 	);
 }
 
+
 int draw() {
 	BeginDrawing();
 	ClearBackground(BLACK);
 	
+	for (int i = 0; i < 256; i++) {
+		DrawPixelV(sky[i], fg);
+	}
 	drawPlayer();
 	EndDrawing();
 }
 
+int clamp(Vector2 *vec) {
+	if (vec->x > width+LENGTH) vec->x -= width+LENGTH;
+	if (vec->x < -LENGTH) vec->x += width;
+	if (vec->y > height+LENGTH) vec->y -= height+LENGTH;
+	if (vec->y < -LENGTH) vec->y += height;
+} 
+
 int update() {
 	if (IsKeyDown(KEY_RIGHT)) angle -= 0.1f;
 	if (IsKeyDown(KEY_LEFT)) angle += 0.1f;
 	
-	if (IsKeyDown(KEY_UP)) accelerate(THRUST);
-
+	if (IsKeyDown(KEY_UP)) {
+		vel.x += sin(angle) * THRUST;
+		vel.y += cos(angle) * THRUST;
+	}
 
 	pos.x += vel.x;
 	pos.y += vel.y;
+	clamp(&pos);
 }
 
 int main() {
-	sky = generateSky();
+	for (int i = 0; i < 256; i++) {
+		sky[i] = (Vector2){rand() % width, rand() % height};
+	}
+
 	InitWindow(width, height, "game");
+
+	Vector2 m = GetMonitorPosition(1);
+	SetWindowPosition(m.x, m.y);
 	SetTargetFPS(60);
 
 	while (!WindowShouldClose()) {
-- 
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