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-rw-r--r--src/tools/crapnet.cpp126
-rw-r--r--src/tools/dilate.c98
-rw-r--r--src/tools/tileset_borderfix.c83
3 files changed, 307 insertions, 0 deletions
diff --git a/src/tools/crapnet.cpp b/src/tools/crapnet.cpp
new file mode 100644
index 00000000..f87803b5
--- /dev/null
+++ b/src/tools/crapnet.cpp
@@ -0,0 +1,126 @@
+#include <baselib/system.h>
+#include <baselib/network.h>
+
+#include <cstdlib>
+
+using namespace baselib;
+
+struct packet
+{
+	packet *prev;
+	packet *next;
+	
+	netaddr4 send_to;
+	int64 timestamp;
+	int id;
+	int data_size;
+	char data[1];
+};
+
+static packet *first = (packet *)0;
+static packet *last = (packet *)0;
+static int current_latency = 0;
+static int debug = 0;
+
+int run(int port, netaddr4 dest)
+{
+	netaddr4 src(0,0,0,0,0);
+	socket_udp4 socket;
+	socket.open(port);
+	char buffer[1024*2];
+	int id = 0;
+	
+	while(1)
+	{
+		// handle incomming packets
+		while(1)
+		{
+			// fetch data
+			netaddr4 from;
+			int bytes = socket.recv(&from, buffer, 1024*2);
+			if(bytes <= 0)
+				break;
+
+			// create new packet				
+			packet *p = (packet *)mem_alloc(sizeof(packet)+bytes, 1);
+
+			if(from == dest)
+				p->send_to = src;
+			else
+			{
+				src = from;
+				p->send_to = dest;
+			}
+
+			// queue packet
+			p->prev = last;
+			p->next = 0;
+			if(last)
+				last->next = p;
+			else
+			{
+				first = p;
+				last = p;
+			}
+			last = p;
+
+			// set data in packet			
+			p->timestamp = time_get();
+			p->data_size = bytes;
+			p->id = id++;
+			mem_copy(p->data, buffer, bytes);
+
+			if(debug)
+				dbg_msg("crapnet", "<< %08d %d.%d.%d.%d:%5d (%d)", p->id, from.ip[0], from.ip[1], from.ip[2], from.ip[3], from.port, p->data_size);
+		}
+		
+		//
+		while(1)
+		{
+			//dbg_msg("crapnet", "%p", first);
+			if(first && (time_get()-first->timestamp) > current_latency)
+			{
+				packet *p = first;
+				first = first->next;
+				if(first)
+					first->prev = 0;
+				else
+					last = 0;
+				
+				if(debug)
+				{
+					dbg_msg("crapnet", ">> %08d %d.%d.%d.%d:%5d (%d)", p->id,
+						p->send_to.ip[0], p->send_to.ip[1],
+						p->send_to.ip[2], p->send_to.ip[3],
+						p->send_to.port, p->data_size);
+				}
+				
+				// send and remove packet
+				//if((rand()%10) != 0) // heavy packetloss
+				socket.send(&p->send_to, p->data, p->data_size);
+				
+				// update lag
+				double flux = rand()/(double)RAND_MAX;
+				int ms_spike = 0;
+				int ms_flux = 100;
+				int ms_ping = 50;
+				current_latency = ((time_freq()*ms_ping)/1000) + (int64)(((time_freq()*ms_flux)/1000)*flux); // 50ms
+				
+				if((p->id%100) == 0)
+					current_latency += (time_freq()*ms_spike)/1000;
+
+				mem_free(p);
+			}
+			else
+				break;
+		}
+		
+		thread_sleep(1);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	run(8302, netaddr4(127,0,0,1,8303));
+	return 0;
+}
diff --git a/src/tools/dilate.c b/src/tools/dilate.c
new file mode 100644
index 00000000..f53e7656
--- /dev/null
+++ b/src/tools/dilate.c
@@ -0,0 +1,98 @@
+
+#include "../engine/client/pnglite/pnglite.c"
+
+typedef struct pixel_t
+{
+	unsigned char r, g, b, a;
+} pixel;
+
+static int clamp(int v, int min, int max)
+{
+	if(v > max)
+		return max;
+	if(v < min)
+		return min;
+	return v;
+}
+
+static void dilate(int w, int h, pixel *src, pixel *dst)
+{
+	int x, y, k, m, c;
+	int ix, iy;
+
+	m = 0;
+	for(y = 0; y < h; y++)
+	{
+		for(x = 0; x < w; x++, m++)
+		{
+			dst[m] = src[m];
+			if(src[m].a)
+				continue;
+			
+			const int xo[] = {0, -1, 1, 0};
+			const int yo[] = {-1, 0, 0, 1};
+			for(c = 0; c < 4; c++)
+			{
+				ix = clamp(x + xo[c], 0, w-1);
+				iy = clamp(y + yo[c], 0, h-1);
+				k = iy*w+ix;
+				if(src[k].a)
+				{
+					dst[m] = src[k];
+					dst[m].a = 255;
+					break;
+				}
+			}
+		}
+	}
+}
+
+static void copy_alpha(int w, int h, pixel *src, pixel *dst)
+{
+	int x, y, m;
+
+	for(y = 0; y < h; y++)
+		for(x = 0; x < w; x++, m++)
+			dst[m].a = src[m].a;
+}
+
+int main(int argc, char **argv)
+{
+	png_t png;
+	pixel *buffer[3] = {0,0,0};
+	int i, w, h;
+	
+	png_init(0,0);
+	png_open_file(&png, argv[1]);
+	
+	if(png.color_type != PNG_TRUECOLOR_ALPHA)
+	{
+		printf("not an RGBA image\n");
+		return -1;
+	}
+	
+	buffer[0] = (pixel*)malloc(png.width*png.height*sizeof(pixel));
+	buffer[1] = (pixel*)malloc(png.width*png.height*sizeof(pixel));
+	buffer[2] = (pixel*)malloc(png.width*png.height*sizeof(pixel));
+	png_get_data(&png, (unsigned char *)buffer[0]);
+	png_close_file(&png);
+	
+	w = png.width;
+	h = png.height;
+	
+	dilate(w, h, buffer[0], buffer[1]);
+	for(i = 0; i < 5; i++)
+	{
+		dilate(w, h, buffer[1], buffer[2]);
+		dilate(w, h, buffer[2], buffer[1]);
+	}
+	
+	copy_alpha(w, h, buffer[0], buffer[1]);
+	
+	// save here
+	png_open_file_write(&png, argv[1]);
+	png_set_data(&png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)buffer[1]);
+	png_close_file(&png);
+	
+	return 0;
+}
diff --git a/src/tools/tileset_borderfix.c b/src/tools/tileset_borderfix.c
new file mode 100644
index 00000000..ba7a40f0
--- /dev/null
+++ b/src/tools/tileset_borderfix.c
@@ -0,0 +1,83 @@
+
+#include "../engine/client/pnglite/pnglite.c"
+
+typedef struct pixel_t
+{
+	unsigned char r, g, b, a;
+} pixel;
+
+static pixel sample(int x, int y, int w, int h, pixel *data, int pitch, float u, float v)
+{
+	x = x + (int)(w*u);
+	y = y + (int)(h*v);
+	return data[y*pitch+x];
+}
+
+static void tilemap_borderfix(int w, int h, pixel *src, pixel *dst)
+{
+	int tilew = w/16;
+	int tileh = h/16;
+	int tx, ty;
+	int x, y;
+	int k;
+	float u, v;
+	
+	memset(dst, 0, sizeof(pixel)*w*h);
+				
+	for(ty = 0; ty < 16; ty++)
+		for(tx = 0; tx < 16; tx++)
+		{
+			for(y = 0; y < tileh-2; y++)
+				for(x = 0; x < tilew-2; x++)
+				{
+					u = 0.5f/tilew + x/(float)(tilew-2);
+					v = 0.5f/tileh + y/(float)(tileh-2);
+					k = (ty*tileh+1+y)*w + tx*tilew+x+1;
+					dst[k] = sample(tx*tilew, ty*tileh, tilew, tileh, src, w, u, v);
+					
+					if(x == 0) dst[k-1] = dst[k];
+					if(x == tilew-2-1) dst[k+1] = dst[k];
+					if(y == 0) dst[k-w] = dst[k];
+					if(y == tileh-2-1) dst[k+w] = dst[k];
+					
+					if(x == 0 && y == 0) dst[k-w-1] = dst[k];
+					if(x == tilew-2-1 && y == 0) dst[k-w+1] = dst[k];
+					if(x == 0 && y == tileh-2-1) dst[k+w-1] = dst[k];
+					if(x == tilew-2-1 && y == tileh-2-1) dst[k+w+1] = dst[k];
+				}
+		}
+}
+
+
+int main(int argc, char **argv)
+{
+	png_t png;
+	pixel *buffer[2] = {0,0};
+	int w, h;
+	
+	png_init(0,0);
+	png_open_file(&png, argv[1]);
+	
+	if(png.color_type != PNG_TRUECOLOR_ALPHA)
+	{
+		printf("not an RGBA image\n");
+		return -1;
+	}
+	
+	w = png.width;
+	h = png.height;
+	
+	buffer[0] = (pixel*)malloc(w*h*sizeof(pixel));
+	buffer[1] = (pixel*)malloc(w*h*sizeof(pixel));
+	png_get_data(&png, (unsigned char *)buffer[0]);
+	png_close_file(&png);
+	
+	tilemap_borderfix(w, h, buffer[0], buffer[1]);
+	
+	// save here
+	png_open_file_write(&png, "output.png");
+	png_set_data(&png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)buffer[1]);
+	png_close_file(&png);
+		
+	return 0;
+}
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-12-10 06:28:31 +0000