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-rw-r--r--game/src/GameSession/Minimap.gdshader18
1 files changed, 18 insertions, 0 deletions
diff --git a/game/src/GameSession/Minimap.gdshader b/game/src/GameSession/Minimap.gdshader
new file mode 100644
index 0000000..8b68108
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+++ b/game/src/GameSession/Minimap.gdshader
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+shader_type canvas_item;
+
+#include "ProvinceIndexSampler.gdshaderinc"
+
+// Index of the currently selected province
+uniform uint selected_index;
+
+const vec3 land_colour = vec3(0.5);
+const vec3 selected_colour = vec3(1.0, 1.0, 0.0);
+
+void fragment() {
+ uvec3 data = read_uvec3(UV);
+ uint index = uvec2_to_uint(data.rg);
+ float is_land = float(data.b != 0u);
+ float is_selected = float(index == selected_index);
+ COLOR.rgb = mix(COLOR.rgb, land_colour, is_land);
+ COLOR.rgb = mix(COLOR.rgb, selected_colour, is_selected);
+}