1 files changed, 111 insertions, 0 deletions
diff --git a/source/windowing/StarFuelWidget.cpp b/source/windowing/StarFuelWidget.cpp
new file mode 100644
index 0000000..4206254
--- /dev/null
+++ b/source/windowing/StarFuelWidget.cpp
@@ -0,0 +1,111 @@
+#include "StarFuelWidget.hpp"
+#include "StarInterpolation.hpp"
+#include "StarGameTypes.hpp"
+#include "StarRoot.hpp"
+#include "StarAssets.hpp"
+
+namespace Star {
+
+FuelWidget::FuelWidget() {
+  auto assets = Root::singleton().assets();
+
+  m_fontSize = assets->json("/interface.config:font.buttonSize").toInt();
+
+  m_fuelLevel = 0;
+  m_maxLevel = 0;
+  m_potential = 0;
+  m_requested = 0;
+
+  m_pingTimeout = 0;
+  disableScissoring();
+}
+
+void FuelWidget::update() {
+  m_pingTimeout -= WorldTimestep;
+  if (m_pingTimeout < 0)
+    m_pingTimeout = 0;
+}
+
+void FuelWidget::renderImpl() {
+  context()->resetInterfaceScissorRect();
+
+  Vec2F textureSize = Vec2F(context()->textureSize("/interface/fuel/fuelgauge.png"));
+  RectF entireTex = RectF::withSize({}, textureSize);
+  RectF entirePosition = RectF::withSize(Vec2F(screenPosition()), textureSize);
+  Vec2F textPosition = entirePosition.center();
+
+  float fuel = 1;
+  float fuelPotential = 1;
+  float fuelRequested = 0;
+  if (m_maxLevel > 0) {
+    fuel = std::min(1.0f, m_fuelLevel / m_maxLevel);
+    fuelPotential = std::min(1.0f, (m_fuelLevel + m_potential) / m_maxLevel);
+    fuelRequested = std::min(1.0f, m_requested / m_maxLevel);
+    fuel -= fuelRequested;
+    if (fuel < 0)
+      fuel = 0;
+  }
+
+  auto shift = [](float begin, float end, RectF templ) {
+    RectF result = templ;
+
+    result.min()[0] = lerp(begin, templ.min()[0], templ.max()[0]);
+    result.max()[0] = lerp(end, templ.min()[0], templ.max()[0]);
+
+    return result;
+  };
+
+  if (std::fmod(m_pingTimeout, 0.2f) > 0.1f)
+    context()->drawInterfaceQuad("/interface/fuel/fuelgaugebackgroundflash.png", shift(0, 1, entireTex), shift(0, 1, entirePosition));
+  else
+    context()->drawInterfaceQuad("/interface/fuel/fuelgaugebackground.png", shift(0, 1, entireTex), shift(0, 1, entirePosition));
+
+  context()->drawInterfaceQuad("/interface/fuel/fuelgaugegreen.png",
+      shift(fuel, fuelPotential, entireTex),
+      shift(fuel, fuelPotential, entirePosition));
+
+  context()->drawInterfaceQuad("/interface/fuel/fuelgaugered.png",
+      shift(fuel, fuelRequested, entireTex),
+      shift(fuel, fuelRequested, entirePosition));
+
+  context()->drawInterfaceQuad("/interface/fuel/fuelgauge.png", shift(0, fuel, entireTex), shift(0, fuel, entirePosition));
+  context()->drawInterfaceQuad("/interface/fuel/fuelgaugemarkings.png", shift(0, 1, entireTex), shift(0, 1, entirePosition));
+
+  auto& guiContext = GuiContext::singleton();
+  guiContext.setFontSize(m_fontSize);
+  if (m_potential != 0) {
+    guiContext.setFontColor(Color::White.toRgba());
+  } else if (m_fuelLevel == 0) {
+    if ((m_requested != 0) && (m_requested == m_fuelLevel))
+      guiContext.setFontColor(Color::Orange.toRgba());
+    else
+      guiContext.setFontColor(Color::Red.toRgba());
+  } else {
+    guiContext.setFontColor(Color::White.toRgba());
+  }
+
+  guiContext.renderInterfaceText(strf("Fuel %s/%s", std::min(m_fuelLevel + m_potential, m_maxLevel), (int)m_maxLevel),
+      {textPosition, HorizontalAnchor::HMidAnchor, VerticalAnchor::VMidAnchor});
+}
+
+void FuelWidget::setCurrentFuelLevel(float amount) {
+  m_fuelLevel = amount;
+}
+
+void FuelWidget::setMaxFuelLevel(float amount) {
+  m_maxLevel = amount;
+}
+
+void FuelWidget::setPotentialFuelAmount(float amount) {
+  m_potential = amount;
+}
+
+void FuelWidget::setRequestedFuelAmount(float amount) {
+  m_requested = amount;
+}
+
+void FuelWidget::ping() {
+  m_pingTimeout = 1.0f;
+}
+
+}