1 files changed, 113 insertions, 0 deletions
diff --git a/bowshock/source/ini/bow/lop.cxx b/bowshock/source/ini/bow/lop.cxx
new file mode 100644
index 0000000..3e607f2
--- /dev/null
+++ b/bowshock/source/ini/bow/lop.cxx
@@ -0,0 +1,113 @@
+// Copyright 2022-2023 Gabriel Jensen.
+
+#include <bow/ini.hxx>
+#include <bow/lgc.hxx>
+
+#include <GLFW/glfw3.h>
+#include <cmath>
+#include <glad/glad.h>
+#include <stdexcept>
+
+auto ::bow::bow::lop() noexcept -> void {
+	bow_log("entering main loop");
+	
+	::GLfloat vtx[] = {
+		-0x1.0000p0f,+0x1.0000p0f,0x0p0f,
+		+0x1.0000p0f,+0x1.0000p0f,0x0p0f,
+		+0x0.0000p0f,+0x0.0000p0f,0x0p0f,
+	};
+
+	::GLuint vao;
+	::GLuint vbo;
+	glGenVertexArrays(0x1,&vao);
+	glGenBuffers(0x1,&vbo);
+
+	glBindVertexArray(vao);
+
+	glBindBuffer(GL_ARRAY_BUFFER,vbo);
+	glBufferData(GL_ARRAY_BUFFER,sizeof (vtx),vtx,GL_STREAM_DRAW);
+
+	glVertexAttribPointer(0x0,0x3,GL_FLOAT,GL_FALSE,0x3 * sizeof (::GLfloat),nullptr);
+	glEnableVertexAttribArray(0x0);
+
+	::bow::objroot sysRoot; // For stellar bodies.
+	::bow::objroot objroot = { // For miscellaneous objects (canisters, shps...).
+		.objs = nullptr,
+	};
+
+	try {::bow::gensys(sysRoot,pldat.sysidt,pldat.tim);}
+	catch (::std::bad_alloc const & e) {
+		bow_logerr("unable to allocate memory for object");
+		::bow::abr();
+	}
+
+	::bow::obj objTmp = {
+		.typ     = ::bow::objtyp::can,
+		.pos     = {
+			.x = 0x0p0,
+			.y = -0x2p0,
+			.z = 0x0p0,
+		},
+		.rot     = {
+			.x = 0x0p0,
+			.y = 0x0p0,
+			.z = 0x0p0,
+		},
+		.posVel  = {
+			.x = -0x1p-12,
+			.y = 0x0p0,
+			.z = 0x0p0,
+		},
+		.rotVel  = {
+			.x = 0x0p0,
+			.y = 0x0p0,
+			.z = 0x0p0,
+		},
+		.mas    = 0x1p0,
+	};
+	::bow::addobj(objroot,objTmp);
+
+	auto const scrlHand = [](::GLFWwindow * const win,[[maybe_unused]] double const xoff,double const yoff) -> void {
+		::bow::pldat * dat = static_cast<::bow::pldat *>(::glfwGetWindowUserPointer(win));
+		dat->zom *= ::std::pow(0x1.04p0f,0x0p0f-static_cast<float>(yoff));
+	};
+
+	::glfwSetWindowUserPointer(gfxdat.win,&pldat);
+	::glfwSetScrollCallback(gfxdat.win,scrlHand);
+
+	for (;;++pldat.tim) {
+		if (polevt()) [[unlikely]] break;
+
+		::bow::grv(sysRoot);
+		::bow::grv(objroot,sysRoot);
+
+		::bow::mov(sysRoot);
+		::bow::mov(objroot);
+
+		::GLfloat const frm = 0x1p0*pldat.zom;
+
+		vtx[0x0u] = (::GLfloat)sysRoot.objs->nxt->pos.x/frm;
+		vtx[0x1u] = (::GLfloat)sysRoot.objs->nxt->pos.y/frm;
+		vtx[0x3u] = (::GLfloat)sysRoot.objs->pos.x/frm;
+		vtx[0x4u] = (::GLfloat)sysRoot.objs->pos.y/frm;
+		vtx[0x6u] = (::GLfloat)objroot.objs->pos.x/frm;
+		vtx[0x7u] = (::GLfloat)objroot.objs->pos.y/frm;
+
+		glClearColor(0x0p0f,0x0p0f,0x0p0f,1.0f);
+		glClear(GL_COLOR_BUFFER_BIT);
+
+		glBindBuffer(GL_ARRAY_BUFFER,vbo);
+		glBufferSubData(GL_ARRAY_BUFFER,0x0,sizeof (vtx),vtx);
+
+		glUseProgram(gfxdat.shdprog);
+		glBindVertexArray(vao);
+		glDrawArrays(GL_TRIANGLES,0x0,0x3 * 0x1);
+
+		::glfwSwapBuffers(gfxdat.win);
+	}
+
+	::glfwSetScrollCallback(gfxdat.win,nullptr);
+
+	glDeleteVertexArrays(0x1,&vao);
+	glDeleteBuffers(0x1,&vbo);
+}