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Add planar rotation for blocks like pumpkins.

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IntegratedQuantum 2024-06-17 19:47:05 +02:00
parent 961ae104fb
commit eabfa32dfe
1 changed files with 44 additions and 0 deletions
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44
src/rotation.zig
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@ -133,6 +133,50 @@ pub const RotationModes = struct {
return false;
}
};
pub const Planar = struct {
pub const id: []const u8 = "planar";
var rotatedModels: std.StringHashMap(u16) = undefined;
fn init() void {
rotatedModels = std.StringHashMap(u16).init(main.globalAllocator.allocator);
}
fn deinit() void {
rotatedModels.deinit();
}
pub fn createBlockModel(modelId: []const u8) u16 {
if(rotatedModels.get(modelId)) |modelIndex| return modelIndex;
const baseModelIndex = main.models.getModelIndex(modelId);
const baseModel = main.models.models.items[baseModelIndex];
// Rotate the model:
const modelIndex: u16 = baseModel.transformModel(rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi/2.0)});
_ = baseModel.transformModel(rotationMatrixTransform, .{Mat4f.rotationZ(-std.math.pi/2.0)});
_ = baseModel.transformModel(rotationMatrixTransform, .{Mat4f.rotationZ(std.math.pi)});
_ = baseModel.transformModel(rotationMatrixTransform, .{Mat4f.identity()});
rotatedModels.put(modelId, modelIndex) catch unreachable;
return modelIndex;
}
pub fn model(block: Block) u16 {
return blocks.meshes.modelIndexStart(block) + @min(block.data, 3);
}
pub fn generateData(_: *main.game.World, _: Vec3i, _: Vec3f, playerDir: Vec3f, _: Vec3i, currentData: *Block, blockPlacing: bool) bool {
if(blockPlacing) {
if(@abs(playerDir[0]) > @abs(playerDir[1])) {
if(playerDir[0] < 0) currentData.data = chunk.Neighbors.dirNegX - 2
else currentData.data = chunk.Neighbors.dirPosX - 2;
} else {
if(playerDir[1] < 0) currentData.data = chunk.Neighbors.dirNegY - 2
else currentData.data = chunk.Neighbors.dirPosY - 2;
}
return true;
}
return false;
}
};
pub const Fence = struct {
pub const id: []const u8 = "fence";
pub const dependsOnNeighbors = true;