Handle and render players with a placeholder texture.

1 files changed, 92 insertions, 0 deletions

diff --git a/player.cpp b/player.cpp
new file mode 100644
index 0000000..a65e8fa
--- /dev/null
+++ b/player.cpp
@@ -0,0 +1,92 @@
+#include "player.h"
+
+#include <cmath>
+
+Player::Player(uint32_t id, Vector3& pos, std::string name) {
+	this->id = id;
+	this->pos = pos;
+	this->name = name;
+
+	t = 0.0;
+}
+
+uint32_t Player::get_id() {
+	return id;
+}
+
+std::string Player::get_name() {
+	return name;
+}
+
+Vector3 Player::get_pos() {
+	return pos;
+}
+
+void Player::set_pos(Vector3& pos) {
+	this->pos = pos;
+}
+
+// TODO: find a sane way to do this
+void Player::render(FTFont *font, unsigned int steps, GLuint texture) {
+	glPushMatrix();
+	glTranslatef(pos.x, pos.y, pos.z);
+
+	// billboarding setup
+	float modelview[16];
+	glGetFloatv(GL_MODELVIEW_MATRIX, modelview);
+	for(int i = 0; i < 3; i++)
+		for(int j = 0; j < 3; j++)
+			modelview[i*4+j] = i == j ? 1 : 0;
+	glLoadMatrixf(modelview);
+
+	// text rendering
+	glPushMatrix();
+		// probably not the best way to do calculate the text position, but it's accurate enough
+		FTBBox box = font->BBox(name.c_str());
+		FTPoint l = box.Lower();
+		FTPoint u = box.Upper();
+		float len = (Vector3(l.Xf(), l.Yf(), l.Zf()) - Vector3(u.Xf(), u.Yf(), u.Zf())).length();
+		// simplified from -len/72/2 + len/72/8
+		glTranslatef(-len/192, 2.1, 0);
+		glScalef(.01, .01, .01);
+
+		// make the text visible through terrain
+		glDisable(GL_DEPTH_TEST);
+		font->Render(name.c_str());
+		glEnable(GL_DEPTH_TEST);
+	glPopMatrix();
+
+	// GL_COLOR_BUFFER_BIT saves blending function
+	glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT);
+	glBlendFunc(GL_ONE, GL_ONE);
+	glEnable(GL_BLEND);
+	t -= 0.0002 * steps;
+	glEnable(GL_TEXTURE_2D);
+	glBindTexture(GL_TEXTURE_2D, texture);
+
+	// quad with scrolling texture
+	glBegin(GL_QUADS);
+		glTexCoord2f(fmodf(t, 1) + .16, 1);
+		glVertex3f(-1, 0, 0);
+
+		glTexCoord2f(fmodf(t, 1), 1);
+		glVertex3f(1, 0, 0);
+
+		glTexCoord2f(fmodf(t, 1), 0);
+		glVertex3f(1, 2, 0);
+
+		glTexCoord2f(fmodf(t, 1) + .16, 0);
+		glVertex3f(-1, 2, 0);
+	glEnd();
+
+	glPopAttrib();
+
+	glBegin(GL_LINE_LOOP);
+		glVertex3f(-1, 0, .01);
+		glVertex3f(1, 0, .01);
+		glVertex3f(1, 2, .01);
+		glVertex3f(-1, 2, .01);
+	glEnd();
+
+	glPopMatrix(); // position translate
+}